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International  Edition 


June  1984  Issue  #285 
$2.50  U&A/$3.00  CANADA 


Amateur  Radio's 
lechnical  Journal 


A  CWC/I  Publication 


Projects 


duild! 


Flashy  British 
Transistor  Tester 

Page  34 


Rate  Your 

Page  30 

Simple  Rf 
Frequency  Counter 

Page  10 


r 


Kjiiabalu-76 


Easy  Berardi  Building 

You  can  count  on  this  simple  frequency 
counter  from  Arizona.  ...Berardi     10 


f: 


Don't  Grope  in  the  Dark! 


Xn  Let  a  simple  card-file  box  be  the  brains 
CiJ  of 


your  own  emergency  lighting  system. 
W7RXV 


Flying  High  with  Two 

Here's  how  a  hand-held  makes  for  some  ultra- 
light Michigan  madness WBfiDQT 


\ 


C 


Meeting  Ends  Make 

These  ten  tips  will  better  your  club  Are  you 
friendly  or  frigid? N6HYK 


\ 


J  troller  doesn't  bend  the  budget 


16 


20 


Creason's  Do-It  DVM 

The  more  Sam  builds,  the  more  smart 
people  pay  attention K6EW     26 


30 


Tester  Project:  England  '83 

H  Wherein  you  flash-chance  transistors, 
chap  .   Penfold     34 

Sounds  Good  to  Me 

a  Two  Texan s  put  togetlier  '75  Mors« 
RU:-   It's  the  best   Baste  VIC-20/C-64 
code  program  you  will  ever  see. 

WSVKOt.WBSAYD 

Piggy-Bank  Repeater  Project 

Set  it  and  forget  it.  This  inflexible  con- 


38 


KT2B    42 
Not-So-Famous  Garriott  Words 

In  one  of  his  first  post'STS-9  appearances, 
W5LFL  5poke  at  Foothill  tCA)  College.  We 
record  his  dedication  to  amateur  radio 
N6BIS    48 


2m  Madness— 20 


Better  the  R-70 


'JT"!  At  your  own  risk,  you  can  soup  up  one 
^        of  I  corn's  super  receivers.  How  to  do  it 


was  not  read  here. 


KE4AQ     54 


Elegant  Rotating 

K9AZG  did  it  right  W4RNL  makes  ft 
better.  For  sightless  and  sighted  bams 


.N 


alike,  this  update  to  a  1982  article  will  be 
revealing, .W4RNL 

Requiem  for  the  Tube 

jri  This  pleasing  project  is  perfect  for  pen- 
^^  todes.  It  could  be  die  last  time  you  use 
them. WA2EWT 

New  Orders  for  the  R-109 

Two  bucks  and  ten  minutes  are  all  it 
takes  to  ne^nlist  a  vintage  receiver. 

. K8AXK/7 

Try  Quality  Code 

a   Using   thts    Mod    III    update    is    much 
simpler  than  saying  its  titk  trenty  times. 

KfeAPW 


^\ 


tl»¥or  Say  Die— 6 
n  IntemationaT— 73 
H»m  Hefp — 
80,87,94,120,126 
Conectlorrs— SO 
Social  Evertts— 83 
Sweeps 
Wifiners- 89 
New  Products— 90 
Review— 92 
RTTY  Loop— 93 


60 


68 


70 


7o 


PiMll— 94 

COfrtests — 96 
DX— 97 
Awards— 99 
Letters— 102 
Reader  Setvice—1 14 
Barter  WByy— 116 
FCC— 118 
Satellites— 120 
E)ealef  Directory— 130 
Propagation— 130 


World's  Most  Compact  MobUes  VHF/UHF/220MHz 


SW^ 


iCOM  presents  ihree  ultra 
compact  mobiles,..the  1C'27A 
2-cneter.  the  1C-37A  220MHz  and 
the  I047A  440MHt,  Th©  smallest 
mobiles  available,  the  IC- 
27A/37A/47A  series  meosufe 
only  5^^  inches  wide  by  1  '^ 
Inches  high  by  7  Inches  deep. 
Yet,  they  contain  on  inter- 
nal speoker  making  fhem^ 
fully  self-contained  and^ 
easy  to  mount, 

aSWcrtts.   in 

such  an  increcl* 

ibiy  snnall  pock- 

oga  the 

C-27A/37A/47A 

ore  able  to  provide 

25  watts  of  output  power 

Internal 
Speokec 


32  PL  Frequencies.    The 

IC-27A/37A/47A  come  complete 
with  32  PL  frequencies  ready  to 
go    Eoch  PL  frequency  may  be 
selected  by  the  main  tuning 
kriob  and  stored  into  memory  for 
easy  access  along  with 
frequency. 

9  Memofles.    Tne 
IC-27A/37A/47A  hove  9  memo 
fies  available  to  store  receive 
frequency,  transmit  offset,  offset 
direction,  and  PL  tone.  Merrko- 
ries  are  booked  up  by  a  ffthium 
backup  battery,  wbicti  will  store 
nr>emafies  for  up  to  seven  yeors 

Speech  Synthesiief*   As  an 
added  plus,  the  IC-27A/37A/47A 
feature  an  optional  speech 
synth^szer  to  vestxiliy  anrXHjnce 


the  receiver  frequency  of  the 
transceiver  through  the  simpie 
push  of  a  button    This  ailows  the 
operator  to  hear  which  fre- 
quency he  is  operating  on  with- 
out looking  at  the  transceiver 

Scanning.    The  IC- 
27A/37A/47A  series  has  a 
scanning  system  which  allows 
scanning  of  memories  or 
scanning  of  ^he  borid 

Pflortty  Scon.    Prioritv  moy 
be  selected  to  be  either  a 
menriory  chonne^  or  o  VFO 
channel.   By  using  sampling 
techr^iques.  the  operator  can 
determine  if  o  frequency  wtitch 
he  wonts  to  use  is  free  or  Dusy, 

Microphone.   Bxti  C- 
27A/37A/47A  comes  connpiete 


with  a  microphone  with  a  16- 
button  pod  for  access  to  your 
favorite  repeoter  or  for  dialing 
through  an  autopatch. 

Stocking  Mol^lJe 
Mounds  for  the 
IC-27A/37A/47Ai 
make  a  small 
complete 
station  for  1  to 
3  bands.  Each' 
band  is  fyll  fea- 
tured and  fully 
operationaj  even 
when  another  band  is  In  use 

The  ICOM  IC-27A/37A/47A 

provide  superb  performance  in 
ttie  mobile  radto  environment 
See  ttiem  at  your  local  ICOM 
dealer. 


ICOM 


The  Worid  System 


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and  select  two  of  the  following 

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1}  VS-1  Voice  Synthesizer 

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2)  TU-4C  sub-audible 

tone  generator,  ss^.ss  va\un. 

3)  MA -4000  Duo-band 
Mobile  Antenna.  $44.95  vatu«. 


a     TR-7950 


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TR.2500/ 
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Plus  4  BONUS 

ITEMS 

1)  Antenna  tuner. 

(FACTORY  llStSTALLED) 

2)  MC-60A  microphone 

3)  YK-88C'1  filter. 

4)  SP-930  speaker 

REG.  $2029  VALUE 

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SAVE  $230.00 


u 


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B-amS   REG.  $239.95 
SALE  $199.95 

8-1016    REG.  $279,96 
BALE  $24BS5 

B-lOe     REG.S179.95 
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8-23$    REG  $e9.»5 
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FT-203R 

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FT-726R 

EXCELLENT 
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HAND-HELDS 


(C-02AT    IC-04AT 
2  MTR       440Mhz. 

COMPLETE 

UNEOF 

ACCESSORIES 


f* 


ICOM 


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SERVING /MATEURS 
P— ^  WORLDWIDE 

^Bob  Ferrero.  W6RJ 

Jim  Bafferty.  N6BJ 
and  other  well 

iwn  amaieurs. 
give  you 

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SERVICE 


VIEWSTAR  vsisooA 

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9d9  Howard  Avo^i 

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5  miles  south  on  101  from  S.F:  Airport. 


OAKLAND,  CA  94609 

2811  Telegraph  Ave., 

(415)451-5757, 
Hwy  24  Downtown.  Lsft  27lh  otf-ramp. 

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1702  W,  Camelback  Rd.. 

(602)  242-3515, 

EaitotHighway  17. 


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Pnc^s„  speciftcmioni.  d»Acr$ptton$  subi^d  to  cfta/iQB  withotjt  n0tfC9  CaMf  and  Armina  mstdmrts  pi&a$t$  «tf£}  tml€S  IBM. 


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«  mo»H 


73  Magailm  •  June,  1984    3 


— 'UP  YOUR  ERP* 

For  HT  owners  operating  inside  a  vehicle  and  wanting 
increased  T/fl  range,  RF  PRODUCTS  has  the  low  cost 
solution. 

Remove  your  BNC  antenna  from  the  HT  and  mount  on 
the  RF  PRODUCTS  BNC  magnet  mount,  install  the  magnet 
mount  on  the  roof  lop  and  conriect  the  BNC  coax  connector 

The  magnet  mount  (part  no.  199-445}  has  \0  feet  of  small 
(5/32 ")  co-ax  with  BNC  connector  attached  and  is  priced  at 
$15.95  {including  shipping  by  UPS  to  46  states). 
TO  ORD  £R  ^  s&nd  S1 5.95  money  order  or  cashiers  check  only 

Fla.  residents  add  5%  tax,  for  air  UPS  add  $1 .50 


A' 


:!n*f. 


The  R  F  PRODUCTS  IVlagnet  Mounts  are  one  of  the  few  magnetic  antenna  mounts  avaiJabie 
th  at  can  be  re  pal  red  s  ho  u  I  d  t  he  co-ax  cabi  e  b  e  damag  ed .  Th  e  co-ax  cab  I  e  con  n  ecto  r  i  nc  i  u  d  es 
a  shrink  tubing  strain  relief  for  long  life  at  the  connector/cable  flex  point  (an  RF  PRODUCTS 
exclusive  on  all  cable  assemblies). 

Ei  g  ht  oth  e  r  models  a  va  i  I  a  b  le  w  ith  th  re©  eac  h  c  h  o  i  ce  of  a  nte  n  n  a  co  n  n  ectors ,  co-ax  ty  p  es  and 
transceiver  connectors  (BNC.  1-1/8-18.  5/16-24  &  RG-122U,  RG-58A/U.  mini  8X  &  BNC, 
PL-259,  lypeN). 


RF  PRODUCTS 

RO,  Box  33,  Rockledge.  fL32BSS,  U.S.A.  (305)  $31  0775 


t^227 


Wmi-SfflRRT 


i 


1 


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WithCESSlOSA  ^ 

Autopatcnrthere's  no  waiting 

for  VOX  circuits  to  drop. 
Simply  key  your  transmitter 

to  talie  control. 


■l^-^  ^rPsf 


SMART  PATCH  is  all  you  n 
sonal  autopatch.  SMART  PATCH  uses  the  only  operatiiis  system 
that  gives  the  mobile  complete  conbroL  Full  break-in  capability  al- 
lows the  mobile  user  to  actually  intemipt  the  telephone  party. 
SMART  PATCH  does  not  interfere  with  the  normal  use  of  your  base 
station.  SMART  PATCH  works  well  with  any  FM  transceiver  and  pro- 
vides switch  selectable  tone  or  rotary  dialing,  toll  restrict, 
programmable  control  codes,  CW  ID  and  much  more. 

To  Take  CONTROL  with  Smart  Patch 
-  Call  800-327-9956  Ext.  101  today. 

^    COMMUNICATIONS  ELECTRONIC  SPECIALTIES,  INC. 

P.O.  Box  2930  •  Winter  Park,  Florida  32790 
Phone  (305)  645-0474  •  Order  Only  (800)  327-9956 


INFO 


Manuscripts 

Contributions  m  the  fofm  of  mariLh 
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4    73  Magazine  •  June,  1984 


CHECK      +DU. 


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r      For  the  ultimate  in  two- 
Tvetef  communications,  fCOM 
^resenls  the  IC-271H  transceiver 

with  a  high  dynamic  range 
eceiver  and  a  100  watt 
ransmltter.   Operating  from  the 
C-PS50,  IC-PS15.  or  the  internal 
iC^PSas  (optional),  the  IC-271H 
Dfings  all  the  advanced 
'unctions  of  the  latest  CPU 
gpntrolle<l  rodios  to  your  shack. 

|h100  Watts.   Now  q  two- 
meter  base  station  with  100 
watts  of  internal  powerl  The  (C- 
271H  provides  all  the  power 
required  for  operation  from 
remote  places  to  repeaters,  or 
for  sinriplex 


Sub^udlble  Ton«s. 

Included  as  a  standard  feature 
ore  32  buift-in  subaudible  lones 
which  or©  easily  selected  by  ro- 
tating the  main  tuning  knob.   PL 
tones  may  be  stored  into  memory, 

32  FulKFu  notion  Memories. 

Eoch  tunable  merryory  holds 
frequency,  offset,  offset  direction, 
mode  and  subaudible  tone, 
Eoch  porametef  is  selected  by 
rototir>g  the  main  tuning  knob  in 
conjunction  with  the  switches  on 
the  front  panel. 

PIL  Locked  ot  lOHi.  An 

©)ftremely  low-noise,  professional 
receiver  and  a  good  signol-to- 
noise  ratio  PiL  allows  the  IC- 
271H's  synthesizer  to  lock  to  10Hz 
providing  receiver  performance 
unparalleled  by  any  other  VHF 
receiver. 


Huor#se9fif  CHipl0y.  ECOM's 
high' visibility,  multicolor  drspioy 
gives  eosy-tchfead  disploy  of  ail 
infofmotion  necessary  for  logging 
o  contact    Frequency,  mode, 
duplex,  offset  direction,  RIT  fre- 
quency, memory  ct^onnel  and  PL 
tone  con  be  displayed, 

Scanning.  Ihe  0271H  can 
scan  rr^rrvones  Qr>d  programmed 
sections  of  the  bond  or  modes 
Mode-S  scon  con  be  used  to 
scan  only  memories  with  a  par- 
ticular mode  or  lock  out  fre- 
quencies continuousty  busy  so 
tt^e  receiver  will  not  stop  at  that 
memory  channel  whJIe  scanning, 

Otfi«r  Standard  F9<]tures. 
To  foclllfate  the  operatk>n  of  the 
iC'271H  ICOM  has  incofpocated 
o  duplex  check  switch,  all-mode 
sqyek;h,  receive  audio  tone 
control,  S-meter,  center  meter, 
seven-year  lithium  battery 
memory  backup,  accessor/ 
connector  and  microphone 

Opilonol  Featuf#t.   0271 H 
optbns  ore:  swrtchable 
preompllfier.  CTCSS 
encoder/decoder  (ericoder  is 
standard),  computer  interface 
ond  voice  synthesizer 


StiJ©.  Only  1  Vi  inches  wide 
by  4^5  inches  high,  the  IC-271H  ss 
styied  to  iook  good  and  engi- 
neered for  ease  of  operatjon. 


Th#IC-271A.  Tt^elC-27fA 

with  25  watt  output  Is  avaiiabie 
and  has  the  same  features  as 
the  IC-271H,  plus  an  optional 
IC-PS25  internal  power  supply  to 
make  it  o  compact,  go- 
onywtiere  two-meter  base 
stotion    See  the  IC-271A{H)  ond 
other  fine  COM  equipment  at 
your  ICOM  dealer  today. 


I 


^^275 


ICOM 


TheVferld  System 


COM  America.  Inc.,  2112-1 16m  Ave  N£.  OeJIevue.  WA  96004(206)454-6155  /  3331  Towerwood  Drive,  5ui re  307,  Do]  las,  IX  75234(214)620-2760 

Ali  sFtit^  ^jedficofions  are  cppr^t^moie  ond  iub^ect  to  cttonge  withaur  notice  or  obitgonon    Ail  iCOM  rodlca  siQnJftcanrly  exceed  FCC  regiiangns  bmjting  spurioy^  emissions    37 1  Hi 06^-1 


W2NSD/I 

NEVER  SAY  DIE 

ecZ/tor/a/  t>y  Wayne  Gr&en 


DUMB  WAYNE 

Word  of  a  petition  I  submitted 
to  the  FCC  having  to  do  with  GW 
was  pubHstied  in  abbreviated 
form  in  QSL  Working  on  the 
basis  of  this  biased  report  and 
without  giving  the  situation 
much  thought,  a  few  Chicl^en 
Utttes  have  been  yelling  wolf,  if  i 
may  mix  my  metaphors.  Actual- 
ly, i  think  that  without  except  ion 
the  reaction  has  been  to  attack 
me  pefsonaily,  not  fiiy  ideas,  i'm 
used  to  that. 

In  a  classic  case  of  projec- 
tion, I'm  classed  as  dumb  by 
amateurs  who  haven't  been 
reading  73  and  thus  don't  under- 
stand what  i'm  doing.  Hey,  they 
may  not  agree  with  what  I  think 
Of  do,  but  if  they  ascribe  dumt> 
ness  as  a  factor,  they're  in 
trouble. 

So  what  in  hell  is  Wayne  up  to, 
anyway?  Well,  it  Is  simple  in 
some  ways,  but  not  quite  obvi- 
ous  unless  you  read  things  care- 
fully all  the  way  through  and 
then  think  about  it.  You  73  read- 
ers are  used  to  that— indeed, 
that  may  be  one  of  the  things 


that   sets  you   apart   from  the 
others. 

Let's  look  at  the  tiasfc  situa- 
tion. We  have  a  dying  hobby- 
amateur  radio.  Twenty  years 
ago,  75%  of  the  newcomers 
were  teenagers.  Now,  not  only 
do  we  have  very  few  newcomers^ 
but  of  the  ones  we  do  have,  only 
about  25%  are  teenagers.  Thus 
not  only  is  amateur  radio  drying 
up  as  a  market  and  as  a  hobby, 
but  also  it  has  almost  totally 
dried  up  as  a  source  of  high*tech 
career  people.  This  last  has.  ! 
believe,  done  serious  damage  to 
our  country. 

Now,  I  suppose  that  it  is 
quaint  of  me  to  worry  about  the 
United  States.  And  it  Is  even  sil- 
lier lor  me  to  let  my  feelings  for 
my  country  influence  what  I  do. 
But  I  see  amateur  radio  as  hav- 
ing two  ma|or  responsibilities  to 
our  country—one  as  a  way  to  at- 
tract youngsters  to  high-tech 
careers  and  the  other  as  the  only 
real  backup  we  have  for  com- 
munications in  case  of  a  nuclear 
attack. 

Neither  of  these  is  a  simple 


KA5SRN 


PAUL  W.  HORNE 
1075  CARDINAL  LA. 
PARIS,  TEXAS  75460 


QSL  OF  THE  hflONTH 

To  enter  your  QSU  put  It  in  an  envelope  along  with  your  choice  ot  a  book  tfom  73' s 
Radio  Bookshop  and  mail  It  to  73,  Pine  Street,  Peterborougti  NH  0345B,  Attn:  QSU  of  the 
Month.  Entries  nol  In  envelopes  or  vi^llhout  a  t>OQk  choice  wME  not  be  accepted. 

6     73  Mstgazine  •  June,  1984 


matter.  But  I  can't  help  but  take 
emergency  communications  se- 
fiousty  when  President  Reagan 
tells  us  that  a  survtvabie  emer* 
gency  communications  service 
would  be  one  of  the  best  deter- 
rents to  an  atomic  attack  yet. 
This  makes  eminent  sense. 

If  I  didn't  think  it  made  sense, 
I  would  not  have  devoted  the 
last  few  years  to  working  with 
the  FCC's  National  Industry  Ad- 
visory  Committee  and  the  last 
18  months  also  to  the  FCC's 
Long-Range  Planning  Commit* 
t^  (for  emergency  communica- 
tions). I've  made  many  trips  to 
Washington  at  my  expense  for 
these  committee  meetings  and 
have  been  one  of  the  more  ac- 
tive participants  right  from  the 
beginning. 

By  virtue  of  my  position  with 
the  committees  and  my  discus- 
sions with  the  FCC  Commis- 
sionerSj  I  have  a  fairly  good  un^ 
derslanding  of  the  state  of  the 
art  of  emergency  communtca* 
tions  at  present  for  all  of  the 
communications  services.  Tve 
written  about  this  before,  so  It 
should  not  be  a  news  flash,  I 
don't  think  l*m  letting  any 
secrets  out  if  I  tell  you  that  other 
than  amateur  radio,  there  are 
few  real  plans  for  coping  with 
any  serious  emergencies  by  the 
commercial  radio  communica- 
tions systems.  The  worst  part  of 
it  is  that  you  may  Imagine  that 
amateurs  have  some  sort  of 
wonderful  secret  plan.  Sorry 
about  that,  but  there's  virtually 
nothing  I 

Amateurs  have  taken  the  lead 
in  coping  with  emergency  com- 
munications needs  tor  many 
years — and  we've  done  rather 
well,  all  things  considered. 
These  past  emergencies  have 
taught  us  some  lessons  which 

Continued  on  page  88 


STAFF 


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notWfl  Swirfc)i,y  AF2M 
PAOOUCTfOM  DIRECTOR 

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MAN^FACTURkNG 

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Easy  Berardi  Building 

You  can  count  on  this  simple  frequency  counter  from  Arizona. 


Joseph  Berardi 
14213  K  38th  SL 
Phoenm  AZ  85032 


Front  view. 


PC  board,  foiWide  view. 

10     73  Magazine  *  June,  1964 


This  is  a  construction  arti- 
cle for  building  a  very 

simple,  high-quality      fre* 
quency  counter  My  honie- 

W1  U1-3  to  DS2"9 

W2  U1-4  to  DS2-7 

W3  U1-5  to  DS2-e 

W4  U1"6toDS2"6 

W5  Ul-8toDS1-9 

W6  U1-9toDS1-8 

W7  UI-IOloDSI-7 

W8  U1-11toDS1-6 

W9  U1-15toDS1-1 

W10  DS1-1toDS2-1 

W11  U1-ietoDS1-14 

W12  DS1'14toOS2-14 

W13  U1-17toDS1-13 

W14  DS1-13toDS2-13 

WIS  U1-19toDS1-3 

W16  DS1-3  10DS2-3 

W17  U1-20toDS1-11 

W18  DS1-11toDS2-11 

W19  U1-21toDS1-4 

W20  DS1-4toOS2-4 

W21  U1-22toOS1-12 

W22  DS1-12toDS2-12 

W23  U1-23toDS1"5 

W24  DS1-5toDS2-5 

Table  1.  Wiring  guide. 


made  counter  uses  the  very 
popular  Intersil  ICM'7216-D 
counter  chip  and  the  Fair* 
child  11C90  prescaler.  just 
add  a  few  discrete  compo- 
nents, some  LED  displays, 
another  three  ICs  and  we 
have  a  very  professional- 
looking  frequency  counter.  I 
built  this  counter  on  a 
3''X6"  printed  circuit  board 
and  installed  it  in  a  small 
lightweight  enclosure.  The 
counter  design  is  essentially 
lifted  right  out  of  the  appli- 


zzz      400      «00      no     lOQC 

1 1ff  PUT  FqfOyEiwCT-ilHt 


Fig.  1.  operating  rang^  of  the 
77Cm 


Frequency  (MHz) 

Signal  Level 

(mV  nns) 

Minimum 

Maximum 

.449 

10 

1.800 

1.0 

10 

2,250 

10.0 

10 

2.250 

50.0 

14 

600 

100^ 

20 

2,000 

150.0 

20 

540 

200.0 

27 

540 

250.0 

31.5 

380 

300.0 

37 

760 

350.0 

31.5 

470 

400.0 

31 

340 

450.0 

47 

280 

500.0 

SO 

270 

560.0 

71 

280 

Resolution  1  kHz  @  ,1'Second  gate  time;  power  requirements:  5  volts 
®  200  mA  or  7.5-24  volts  @  225  mA, 

Table  2,  Operating  limits  on  the  author's  counter  using  an 
HP8640  for  comparison. 


PC  board,  component'Side  view. 


cation  notes  for  both  the  fre- 
quency counter  and  pre^ 
scaler  iCs. 

I  will  not  go  into  great  de- 
tail on  the  operation  of  the 
two  nnain  ICs;  the  applica- 
tion notes  have  all  of  the 
necessary  infornnation.  This 
counter  will  accurately  mea- 
sure frequencies  from  500 
kHz  to  over  600  MHz. 

Operation 

The  frequency  counter 
circuttry  consists  of  three 
main  sections.  The  first  sec- 
tion consists  of  a  wideband 
commercial-grade  amplifier. 
The  second  section  consists 
of  two  counters  to  prescale 
the  signal  down  to  a  usable 
frequency  since  the  Intersil 
maximum  operating  fre- 
quency is  about  10  MHz, 
The  third  section  is  the  Inter- 
sil counter  which  counts 
pulses  for  a  specified  gate 
time  and  then  displays  the 
frequency. 


Preami 

The  wideband  amplifier 
has  a  flat  frequency  re- 
sponse up  to  450  MHz  and 
gradually  starts  rolling  off  as 
the  frequency  increases.  The 
MWA130  has  a  gain  of  aph 
proximately  14  dB  from  0  to 
450  MHz  and  gradually 
drops  down  to  11  dB  of  gain 
at  600  MHz. 

The  high-power  amplifier 
was  chosen  over  the  low- 
po  we  r  ve  rs  ion  (M  W  A1 1 0) 
since  the  amplifier  starts  sat- 


urating at  a  much  smaller 
signal  fevel.  When  the  am- 
plifier starts  saturating,  the 
harmonics  increase  in  am- 
plitude relative  to  the  fun- 
damental. This  confused  the 
prescaler  and  resulted  in  er- 
roneous readings.  Accord- 
ing to  the  data  sheet  the 
prescaler   is   most   sensitive 


with  a  225-400-mV  p-p  signal 
applied  to  the  input  The 
diodes  on  the  input  merely 
protect  the  amplifier  since 
the  diodes  won't  start  limit- 
ing until  a  500-mV  p-p  signal 
is  applied-  This  signal  level 
would  result  in  presenting  a 
minimum  of  1-V  p-p  signal 
to  the  prescaler.  This  would 
limit  the  prescaler  to  only 
450  MHz. 


Prescaler 

The  11C90  is  a  high-speed 
prescaler  designed  for  com- 
munication and  instrumen- 
tation applications.  The  pre- 
scaler can  be  programmed 
to  divide  by  10  or  11.  The 
11C90  is  hard-wired  in  the 
divide-by-10  mode.  The 
prescaler  has  both  ECL  and 
TTL  outputs,  but  only  the 
TTL  output  is  used  in  this  ap- 


U'ttV 


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F       H       &      E     bfi.    \C     IC    X    4C 


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CO 

PS2 


Fig.  2  frequency  counter  schematic. 


73  Magazine  •  June,  1984    11 


Fig.  3.  PC  board. 


plication  According  to  the 
data  sheet  this  IC  has  the 
widest  operating  range,  with 
a  225-40OnnV  p-p  input  sig- 
nal level  (see  Fig,  1). 
The  prescaled  output  tog- 


gles a  TTL  decade  counter; 

the  output  of  the  decade 
counter  is  now  lylOO  of  the 
originai  signal  and  is  count 
ed  by  the  Intersil  frequency 
counter. 


Frequency  Counter 

The  frequency  counter 
has  an  internal  time-base  Ce- 
cil lator  which  uses  an  exter- 
nal crystal.  A  lO.OOO-MHz 
crystal  was  chosen  for  this 


Parts  Ust 

U1 

iCM7216D— Intefsil  (common  cathodeji-^ 

$20.96 

U2 

74196 

.60 

U3 

11C90— Falrchffdi^^ 

16.95 

U4 

MWA130    Motorola  1-3.4 

8.25 

U5 

LM7805 

*99 

DS1 

DL4509— LJlronlx  (common  cathode^^^ 

2.99 

DS2 

DL-J^09— Litronix 

2.99 

Y1 

lO.ChMHzcryrstal 

3.00 

CR1-3 

1N914  diode 

wm 

LI 

10CkjH-500*uH  molded  coiL  V*  Watt 

1J35 

Resistors  ('A  Watt,  5%  unless  otherwise  specif  iad) 

,07 

R1,R2 

10,000  Ohms 

R3,R4 

1 ,000,000  Ohms 

RS 

110,000  Ohms 

R6.R7, 

1,000  Ohms 

R9 

120  Ohms 

1                 R10 

4700  Ofims 

Capacitors 

C1 

1  uF,  50  volts,  electrolytic 

.15 

C2,C3 

39  pF,  mica 

28 

C4 

10  uF,  50  volts,  electfolytte 

.15 

C5,C6,C8-C11,C13 

.1  uF,  ceramic  disc 

10/125 

C7,C12 

1000  pF.  ceramic  disc  or  mylar™ 

.12 

Miscellaneous:  PC  board,  28i)in.  wire-wrap  IC  socket,  14-pin  low-profile  IC 

socket. 

case,  BNC  connedor,  miniature  phone  jack,  TO-220  heat  sink,  &<ligit  bezel*  wire,               | 

solder,  etc. 

1  Circuit  Specialists  Co..  Box  3047,  ScottsdaJe  A2  as?57. 

2  Jameco  Electronics,  1356  Shoreway  Rd.,  Belmont  CA  9400Z 

3  MHz  Electronics.  2111  W.  Cameiback  Rd.  Phoenix  AZ  86015. 

^  Semiconductor  Surplus,  2822  N.  32nd  St.,  Phoenix  AZ  85008. 

application.  There  are  a  few 
discrete  external  compo- 
nents which  tap  the  signals 
necessary  for  determinirrg 
the  counter's  mode  of  oper- 
ation. The  counter  has  four 
possible  gate  times,  but  only 
the  ,1 -second  gate  time  is 
used,  for  simplicity;  A  1  sec* 
ond  gate  time  will  increase 
the  counter's  resolution  to 
100  Hz,  but  will  update  the 
display  at  a  much  slower 
rate— which  can  be  annoy- 
ing if  you  are  looking  for 
rapid  changes  in  frequency. 

Constniction 

1  laid  out  a  printed  circuit 
board  for  the  circuitry  and 

used  the  wire-wrap  tech- 
nique for  wiring  the  dis- 
plays. The  point-topoint 
wiring  method  will  work  just 
as  well  for  the  displays,  A 
wire  list  is  included  for  wir- 
ing the  two  Litronix  red 
multi-digit  reflector  arrays. 
These  displays  are  very  inex- 
pensive, but  almost  any 
common-cathode,  seven-seg- 
ment displays  can  be  used 
instead.  The  prescaler  must 
be  soldered  directly  onto 
the  PC  board,  but  DIP  sock- 
ets can  be  used  for  the 
remaining  DIP  ICs,  The 
builder  should  use  the  as- 
sembly drawing  as  a  guide 
for  installing  the  parts,  and 
the  parts  list  for  determining 
the  component  values. 


12    73  Magazine  •  June,  1984 


Magazine" 


For  the  new  age  In  sound  reproduction! 


Digital  Audio  brings  you  news  of 

the  most  significant  breakthrough  in 
sound  recording  since  Edison  recited 
"Marv  Had  A  Little  Lamb"  into  the 
horn  of  his  prototype  phonograph 
more  than  a  century  ago, 

D  Informative  equipment  profiles 
D  Critical  Compact  Disc  reviews 
D  Maintenance  tips 

□  Regular  columns 

D  Expert  technical  advice 

D  Product  updates  and  reports 

D  Special^  in-depth  feature  articles 

D  Industry  news  flashes 
and  much,  much  more. 


Digital  Audio.  Yournew  magazine 

for  the  new  age  in  sound  reproduc- 
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See  Ust  of  A&werttsefs  ort  page  t  T4 


73  Magazine  •  Jur»e,  1984     13 


HEATSINK 


fig.  4,  Component  layout 


Checkayt 

This  project  requires  a 
+  5-V-dc  supply.  A  voltage 
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ing the  voltage  regulator, 
the  supply  voltage  can  be 
anyw^here  between  7.5  and 


20  volts  but  must  be  able  to 
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The  display  will  light  up  as 
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14     73  Magazine  •  June,  1984 


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Don't  Grope  in  the  Dark! 

Let  a  simple  card-file  box  be  the  brains 
of  your  own  emergency  lighting  system. 


Because  a  salesman's 
business  lunch  was 
abruptly  interrupted  by  a 
sudden  power  failure,  a 
well-known  flashlight  and 
battery  manufacturing  firm 
was  founded.  When  the 
main  lighting  system  failed, 
everyone's  attention  was 
drawn  to  the  restaurant's 
novel  ffower  planters;  they 
contained  a  crude  flashh 
light  Perhaps  this  is  one  of 
the  earliest  recorded   uses 


of  automatic  emergency 
lighting. 

Today,    it    is    common, 

even  required  in  some 
cases,  to  have  a  form  of  au- 
tomatic emergency  lighting 
in  hospitals,  hotels,  busi- 
nesses, etc.  Many  homes 
are  so  equipped  as  a  matter 
of  convenience. 

Although      sophisticated 
commercial     systems     are 


r 


Parts  placement  The  four  diodes  at  the  relay  form  a  bridge, 
allowing  use  of  a  6-vott  relay  and  a  cheap  ac  low-voltage 
game  module^  The  diode  near  the  top  of  the  box  ensures 
proper  polarity  of  the  recharging  current 

16     73  Magazifte  •  June,  1964 


available  which  include  re- 
chargeable batteries,  trick- 
le chargers,  test  buttons, 
and  power-on  indicators,  it 

is  practical  to  make  a  sim- 
ple but  very  effective  sys- 
tem mostly  out  of  junk-box 
parts.  The  system  need  not 
be  any  more  complicated 
than  a  flashlight  lamp,  two 
dry  cells,  a  relay,  and  a 
snap-in  battery  holder.  Two 
alkaline  cells,  if  the  TV  ads 
are  believable,  should  still 
give  plenty  of  light  even  af- 
ter two  years  of  intermit- 
tent use,  although  an  annu- 
al check/change  might  be  in 
order. 


Regardless  of  which  sys- 
tem you  put  into  your  home, 
ham  shack  or  cabin,  the  ba- 
ste operation  is  quite  simple. 
When  the  power  fails,  the 
normally-closed  contacts  of 
a  115-volt  relay  complete 
the  circuit  between  the  bat* 
teries  and  light  bulb.  The 
bulb  automatically  turns  off 
and  the  batteries  start  re- 
charging  (if  it  is  that  type  of 
system)  when  the  power  is 
restored, 

Cel  cells  take  a  float 
charge  quite  well,  and  for 
that  reason  are  found  in 
many  commercial  emergen- 


^41    ^ 


The  parts  needed  for  the  project 


tt 


N.U. 

.;  ISK  OHM 

>  zm 

1 

V  iPi40l>6 

iiSV  AC 

ffEL*Y 

JL^ 

ffi)  LEO 

FROM 
eATTEFfV 

(4  -  40 
M^CHIN£ 
S  CHE  WSJ 


I 


Fig.  h  Schematic  of  the  emer^ncy-Hghting  project 


l&JEV 


CONTACTS  TO  FIASHUIOHT 
OH  LANTERN 


CUftiVEMT    LIMIT   R£5I3TDR 

FOR  CK^j^GiitG  batte:iiies 

-^Afc — 


Fig.  2.  A  variation  of  the  project 


cv-Iighting  systems,  Nicads, 
on  the  other  hand,  don't  like 
float  charging  and  should  be 
completely  run  down  before 
being  recharged. 

A  4"  X  6"  card-file  box 
holds  the  few  parts  I  used. 
The  on/off  switch  disables 
the  system  when  it  is  pur- 
posely removed  from  the 
power  mains.  The  terminals 


on  the  side  of  the  box  go  to 
an  external  charger  for  the 
two  n leads.  As  the  diagram 
in  Fig,  1  shows,  a  diode  is  se- 
ries-connected with  one  of 
the  terminals  to  prevent  ac- 
cidental discharge  or  re* 
verse  charge.  The  relay  con- 
tacts could  be  connected  to 
a  lantern  through  a  minia- 
ture plug  and  a  closed-cir- 


The  finished  project  in  action. 


cuit  jack  if  you  don't  wish  to 
construct  a  flashlight.  The 
relay  isolates  the  115-volt 
lines  from  the  low-voltage 
lighting  circuit. 

Fig.  2  shows  a  variation 
using  a  low-voltage  relay 
with  suitable  transformer 
and  provisions  for  recharg- 
ing batteries.  Don't  give  up 
for  lack  of  a  115-volt  relay. 
Perhaps  the  spare-parts  box 
has  an  old  door  bell  trans- 


former and  a  low-voltage  re- 
lay in  it  or  a  diode  and  a  se- 
ries-voltagendropping  resistor 
can  make  a  dc  relay  work. 

There  are  many  possible 
variations  of  the  basic  cir- 
cuity this  should  give  you  a 
good  starting  point. 

The  gentle  pitter-pat  of  a 
summer  rain  shower  and  ac- 
companying sharp  lightning 
bolt  doesn't  have  to  leave 
you  in  the  dark  again  !■ 


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73  Magazine  •  June,  1984     17 


COMMUNICATE 


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18     73  Magazine  •  June,  1984 


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73  Mag&zine  •  June,  1984    19 


Flying  High  with  Two 

Here's  how  a  band-held  makes  for 
some  ultralight  Michigan  madness. 


Raiph  E.  Js^gi^n  WB8DQT 
602  S.  jeifer&on 
Mason  Mt  4dB54 


FM  articles  in  the  ama- 
teur press  seem  to  cover 
a  wide  spectrum  — from 
providing  communications 
for  the  opening  of  a  new 


The  author  intefitly  strapping  into  the  flying  hnrness  prior  to 
donning  stopwatch,  camera,  and  hand-held.  Some  of  the 
wire  bracing  that  rigidities  the  aircraft  structure  is  clearly 
visible.  The  15-hp  engine  is  mounted  below  the  wing  and 
drives  the  prop  (located  behind  the  wing]  through  a  belt  re- 
duction system, 

20     73  Magazine  •  June,  1984 


A  2-meter  quafter-wave  whip  anchored  to  the  forward  end  of 
the  fuselage  provides  increased  range  over  a  rubber  duckie 
partially  shielded  by  the  tubular  frame  of  the  aircraft. 


Don  Chubb,  my  partner  in  ultrattght  madness,  lifts  off  in 
light  ground  fog  for  an  early  morning  flight  The  pilot's 
weight  is  shifted  to  the  rear  for  takeoff  and  climb,  achieved 
by  simply  keeping  his  legs  straight  when  his  feet  are  resting 
on  the  foot  bar  up  by  the  nose  wheei  Movement  forward 
wilt  pitch  the  nose  down  while  movements  from  side  to  side 
wilt  turn  the  aircraft  in  the  direction  of  movement.  Pitch 
control  is  achieved  entirely  by  weight  shift  The  side  to  side 
movements  of  the  pilot  induce  the  required  bank  for  a  turn 
with  the  rudder  coupled  to  the  harness.  Although  such  a 
control  system  sounds  strange  to  a  pilot  used  to  the  conven- 
tional control  stick  and  rudder  pedals,  it  actually  feels  quite 
natural  and  can  be  learned  in  a  fraction  of  the  time  required 
for  convent ionat  flight  training. 


sewage  plant  to  linking 
voice-controlled  repeaters 
with  blue  light.  In  a  sense 
this  is  an  FM  article,  but  it  is 
a  bit  off  the  beaten  track  in 
that  it  describes  a  new  use 
for  those  ever-present  two- 
meter  hand-helds  that  seem 
to  be  sprouting  up  like 
mushrooms  on  the  ad  pages 
of  all  the  magazines- 

The  subject  at  hand  is  the 
marriage  of  good  old  VHF 
and  UHF  FM  with  what  is 
perhaps  the  neatest  inven- 
tion since  20  meters  — the 
ultralight  aircraft-  It  is  an 
application  where  your  FM 
bands  may  provide  one  of 
the  few  viable  options  for 
good  communications 
(more  on  that  later),  but  for 
the  moment,  if  you  have  a 
slightly  adventurous  spirit, 
hang  in  there  and  let  me  in- 
troduce you  to  ultralights 
prior  to  lamenting  their 
communications  problem, 

First  of  all,  what  is  an  ul- 
tralight? The  easiest  answer 
is  that  it  is  a  minimal  air- 


craft—a simple  flying  ma- 
chine of  aluminum  tubing, 
dacronTM,  and  a  small 
engine— that  can  introduce 
you  to  the  thrill  of  flying 
with  a  minimum  of  fuss, 
low  cost,  and,  although  it 
might  seem  difficult  to 
believe,  safety.  Almost 
everyone  has  dreamed  of 
flying  at  one  time  or 
another  and  radio  ama- 
teurs are  at  least  as  prone 
to  the  syndrome  as  anyone 
else  — perhaps  more  so  The 
next  time  an  air  mobile 
calls  on  52,  just  listen  to  the 
pileup!  The  response  is  due 
in  no  small  part  to  the 
vicarious  participation  it 
provides. 

In  the  days  of  the  Wrights 
and  pioneers  such  as  Glen 
Curtis,  the  aircraft  were 
constructed  of  wood,  fab- 
ric, and  wire,  and  although 
the  activity  was  far  from 
safe,  it  was  thrilling  enough 
to  galvanize  a  world  into 
the  age  of  flight.  Today  fly- 


After  taking  off  and  making  a  180^  turn,  the  author  swings 
back  over  the  farmyard  while  climbing  to  cruise  altitude. 
Although  our  Quicksilver  has  a  service  ceiling  of  900i)  feet 
most  flying  is  done  between  500  and  1500  feet^high 
enough  for  safety  yet  low  enough  to  avoid  most  other  air 
traffic  white  stiti  maintaining  a  good  view  of  the  country- 
side. Wind  is  the  greatest  enemy  of  the  ultralight  flier  and 
most  flying  is  done  with  wind  speeds  of  5  mph  and  below 
~ primarily  early  morning  and  early  evening,  t  have  built  a 
couple  of  fancy  anemometers  to  keep  track  of  wmd  speed, 
but  the  leaves  of  this  old  tree  still  provide  the  most  reliable 
indication  of  flying  conditions^ 


ing  is  taken  for  granted  — 
the  thrill  is  still  there  and  it 
is  certainly  safe,  but  just  as 
certainly  it  is  no  longer  ei- 
ther simple  or  economical 
Of  course  it  really  can't  be 
simple  with  air  lanes  criss- 
crossing the  sky  stacked  all 
the  way  to  the  stratosphere 
and  the  requirement  of 
maintaining  the  safety  of 
those  in  the  air  and  on  the 
ground.  Nonetheless,  it  is 
hard  to  avoid  nostalgia  for 
the  early  days  when  frail 
aircraft  lifted  out  of  cow 
pastures,  thrilling  pilot  and 
spectators  alike. 

In  a  sense,  uftralight  air- 
craft can  provide  a  return 
to  the  best  of  these  rose-col- 
ored visions.  Ultralights 
trace  their  evolution  to  the 
hang-gliding  movements  of 
the  early  and  middle  60s 
when  intrepid  souls,  long- 
ing to  fly  on  a  budget, 
launched  down  hills  and 
sand  dunes  on  (or  more  pre- 
cisely beneath)  rogallos, 
monoplanes,  and  biplanes 
constructed  of  bamboo  and 
plastic  sheeting.  That  sport 


blossomed  with  the  aircraft 
rapidly  evolving  to  sophisti- 
cated aerodynamic  forms 
constructed  of  aircraft 
aluminum  and  dacron.  To- 
day the  sport  is  dominated 
by  launches  from  cliffs  and 
mountains  in  search  of  the 
lift  to  provide  flights  to  ex- 
treme altitude  or  long  dis- 
tances crosscountry.  Inter- 
nal regulation  permitted 
hang  gliding  to  develop  into 
a  generally  sane  activity 
and  I  have  followed  its  de- 
velopment for  several 
years. 

Unfortunately,  Michigan 
has  no  mountains  and  even 
if  we  had  spectacular  cliffs 
and  sea  breezes,  1  really 
couldn't  see  myself  step- 
ping off  into  the  void!  Ap- 
parently other  flatlanders 
had  the  same  problems,  but 
their  response  was  differ- 
ent Instead  of  sighing  and 
putting  away  the  maga- 
zines, they  responded  by  at- 
taching engines  and  wheels 
to  reliable  hang-glider  de- 
signs and  ultralights  were 
born!  The  result  has  been  a 

73  Magazine  *  June,  1964    21 


Our  rural  ''aerodrome"  photographed  from  an  altitude  of 
400-500  feet.  Not  a  bad  antenna  location.  Although  the 
gain  of  the  array  may  not  he  spectacutar.  it's  hard  to  com- 
plain about  the  line  tosses.  The  reliable  communications 
range  is  quite  fantastic  and  if  the  Unk  is  marginai  you  simply 
climb  a  little  higher 


surge  of  reliable,  simple  air- 
craft that   will   fly  out   of 

your  local  pasture,  Aircraft- 
grade  aluminum  tubing  and 
hardware,  stabilized  da- 
cron,  and  light  and  power- 
ful two-cycle  engines 
replace  the  hardware  of 
yesteryear  while  sophrsfi- 
cated  application  of  low- 
speed  aerodynamic  princi- 
ples replaces  the  "wonder  if 
this  will  fly"  approach  of 
the  early  days,  The  simplici- 
ty and  thrill  remain, 

At  present,  regulation  is 
minimal  [no  pilot  certifi- 
cate or  aircraft  registration 
required)  if  the  design 
meets  two  criteria— it  must 
carry  only  one  person  and  it 
must  be  capable  of  being 
launched  and  landed  on 
foot  Note  that  I  said  capa- 
ble. If  the  ultralight  is  a 
commercial  product,  the 
manufacturer  will  provide 
evidence  of  foot-launch 
and  -landing  capability  and 
you  can  stick  to  your 
wheels.  However,  if  you  de- 
signed the  bird  or  modified 
it  and  you  should  encoun- 
ter an  FAA  inspector,  ex- 
pect to  demonstrate  it  your- 
self. If  you  fail  to  do  so,  you 
will  be  advised  to  get  a  stu- 
dent pilot's  certificate  and 
register  the  aircraft.  Stricter 
regulation  is  on  the  hori- 
zon, but  it  will  probably  be 
modest  with  an  aim  toward 

22    T3  M&gazme  •  June,  1934 


maintaining  safety  while 
preserving  a  category  for 
simple  recreational  aircraft. 
Present  limitations  will 
probably  be  retained  with 
the  addition  of  standards 
for  maximum  aircraft 
weight,  flight  training  stan- 
dards, and  assurance  of  fa- 
miliarity with  the  Federal 
Aviation  Regulations (FARs), 

Ultralights  come  in  a  be- 
wildering array  of  designs, 
most  running  between 
$3000  and  $4500  in  price. 
Most  ultralights  are  deliv- 
ered in  the  form  of  a  collec- 
tion of  aircraft  hardware. 
pre-drilled  and  -formed 
aluminum  tubing,  and  pre- 
sewn  fabric  with  assembly 
time  varying  from  10  to  30 
hours. 

The  key  to  safety  is  to 
stick  with  those  manufac- 
turers who  insist  that  you 
buy  from  a  dealer  who  will 
inspect  your  work  before 
you  fly  it.  The  Quicksilver, 
owned  by  my  partner  Don 
Chubb  and  me,  is  a  good  ex- 
ample of  this  policy.  Manu- 
factured by  Eipper  For- 
mance  of  San  Marcos  CA,  it 
must  be  purchased  through 
a  dealer  who  will  provide 
any  advice  you  require  dur- 
ing assembly  (about  20 
hours).  The  dealer  will  with- 
hold certain  vital  items  — 
such  as  the  prop— pending 
dealer  Inspection  of   your 


machine  and  will  test-fly  it 
once  assembly  is  complete. 
You  cannot  take  full  posses- 
sion of  your  flying  machine 
until  you  have  completed 
the  dealer  flight  training 
course  which  involves 
about  5  hours  of  instruc- 
tion. One  or  two  hours  will 
get  you  to  your  solo  while 
the  rest  is  devoted  to  devel- 
oping proficjency. 

The  plane  itself  is  very 
simple  to  fly  and  after  the 
first  few  minutes  of  your 
solo  you  will  ease  out  of  the 
shaking-knees-and -white* 
knuckle  phase  and  really  re- 
lax and  enfoy  the  experi- 
ence. The  key  to  safe  ultra- 
light flight  is  rigorous  pre- 
f light  checks  on  the  ma- 
chine and  careful  attention 
to  the  wind.  The  latter  is  an 
important  factor  given  the 
light  weight  of  the  machine. 
Our  Quicksilver  has  a 
32-foot  span  and  160  square 
feet  of  wing  area^yet  weighs 
only  155  pounds.  With  a  pi- 
lot weight  of  190  pounds, 
that  is  quite  a  bit  of  wing  for 
relativefv  little  weight. 
Most  tramtng  is  conducted 
under  calm  conditions.  Air 
currents  of  5-10  mph  are 
considered  windy  and  gusty 
conditions  are  avoided 
completely. 

The  thrill  of  flying  cannot 
really  be  described.  To  real- 
ly understand  it.  you  have 
to  experience  the  world 
opening  up  as  you  rise 
above  the  tree  line  at  the 
start  of  your  own  private 
dawn  patrol  over  the  rural 
countryside.  Suffice  it  to 
say  that  I  spent  a  good  bit 
of  the  summer  flying  every 
minute  1  could  with  nary  a 
thought  to  the  old  radio 
shack! 

Once  I  had  become  im- 
mersed in  the  ultralight  ex- 
perience, however,  1  did  be- 
gin to  realize  that  commu- 
nications between  the  pilot 
and  the  ground  could  be  of 
real  value.  Take  training  as 
one  example.  Needless  to 
say,  there  is  no  such  thing  as 
dual  instruction  in  a  single- 
seat  ultralight.  The  instruc* 
tor  stands  on  the  sidelines 
to    discuss    your    progress 


and  problems  as  you  learn 
proper  ground  handling, 
transition  to  crow  hops 
[short  hops  into  the  air 
down  the  runway),  and  fi- 
nally the  solo  flight 

Ultralights  fly  very  slow- 
ly (typically  20-^35  miles/ 
hour)  and  are  constructed 
of  tough  materials  so  you 
are  not  likely  to  hurt  your- 
self in  training.  However  it 
is  possible  to  bend  some 
tubing  that  will  cost  $$$  to 
replace.  Most  of  the  stu- 
dent problems  leading  to 
bent  tubing  and  a  confi- 
dence crisis  could  easily  be 
avoided  if  the  instructor 
could  speak  to  the  student 
during  his  gyrations  instead 
of  afterward.  Sounds  like  a 
job  for  radio.  Ditto  once 
you  are  flying  regularly. 
Wind  conditions  can 
change,  for  example,  while 
a  flight  is  in  progress.  It 
would  be  nice  if  the  individ- 
ual waiting  patiently  (?)  on 
the  ground  for  his  turn 
could  talk  with  the  flier 
about  such  weighty  mat- 
ters—not to  mention  the  in- 
evitable "You've  been  up 
for  40  minutes,  the  sun  is 
going  down,  and  I  want  my 
turn!" 

Cross-country  flights 
have  their  own  attraction; 
although  you  will  not  go 
particularly  far  cruising  at 
30-35  mph,  flights  of  up  to 
30  miles  are  quite  practical. 
We  usually  run  a  chase  car 
for  such  ventures,  but  the 
car  has  to  follow  the  roads 
and  is  often  detoured  to 
pick  up  gas  for  the  return 
flight  or  to  get  the  family 
outdoors  to  watch  Daddy 
fly  over.  Given  these  reali- 
ties, a  communications  link 
would  be  quite  useful  in 
keeping  track  of  where  the 
aircraft  is  located,  notifying 
if  the  flight  route  has  been 
changed,  or,  heaven  forbid, 
if  you  have  had  to  put  down 
somewhere  out  in  the 
boonies  with  a  problem, 

Most  ultralights  are 
flown  without  instruments 
since  they  really  aren't 
needed  for  this  kind  of  fly- 
ing. If  you  do  carry  up  an  al- 
timeter or  air-speed  indica* 


tor,  it  is  ysually  out  of  a 
sense  of  curiosity  rather 
than  necessity.  Radios, 
however,  would  be  nice. 
The  question  is,  what  kind 
of  a  radio.  It  is  here  that  the 
unique  nature  of  ultralights 
presents  a  problem  Most 
are  powered  by  two-cycle 
engines  and  the  pilot  envi- 
ronment is  noisy,  to  put  it 
very  mildly.  The  noise  is 
both  acoustic  and  electri* 
cal.  The  former  is  taken 
care  of  by  ear  plugs  de- 
signed to  deaden  impulse- 
type  sound  waves,  but  the 
electrical  dimension  is  pure 
poison  for  an  operating  ra- 
dio system.  The  electrical 
noise  level  varies  with  the 
engine  in  use  but  typically 
is  moderate  to  quite  high. 

When  an  ultralight  pilot 
or  instructor  first  thinks 
about  radios,  the  first  step 
is  usually  a  CB  hand-held. 
Such  units  lack  internal 
noise  Irmiters  and  have 
poor  squelch  action  and 
cumbersome  antenna  sys- 
tems. The  newer  "rubber 
duckies"  for  27  MHz  have 
eased  the  size  problem 
somewhat,  but  they  are 
poor  performers  at  such  a 
tow  frequency.  Even  with  a 
5-Watt  ground-based  unit; 
the  end  result  is  a  radio  sys- 
tem that  is  so  noisy  and  un- 
reliable that  it  hardly  pays 
to  take  it  up! 

Very  compact  transceiv- 
ers (even  synthesized  hand- 
heids)  are  now  available  for 
aircraft  service  (108''136 
MHzX  but  these  are  AM  and 
have  many  of  the  same  op- 
erational limitations  as  CB 
units  They  also  tend  to  be 
very  expensive.  But  what 
about  FM?  FM  would  solve 
the  electrical  noise  prob- 
lem to  a  large  extent  and  is 
characterized  by  effective 
squelch  action  as  well. 
Since  I  already  had  a  syn- 
thesized mobile  rig  for  two 
meters,  this  was  a  logical 
place  to  start.  Off  to  look  at 
hand+ields! 

I  am  definitely  not  a  two- 
meter  freak,  so  the  rig  for 
the  plane  did  not  have  to  be 
microprocessor-equipped 
—  1  was  not,  after  all,  going 


to  figure  my  income  tax 
while  aloft,  i  started  to 
scrounge  for  an  old-fash* 
ioned  crystal-controlled 
hand-held  since  these  are 
now  considered  passe  in  the 
better  FM  circles,  A  close- 
out  deal  of  a  Pace  Commu- 
nicator MX,  complete  with 
rubber  duckie,  nicads,  and 
charger,  seemed  the  best 
bet,  so  off  went  a  phone 
order  to  AES  in  Milwaukee 
and  I  had  the  unit  a  few 
days  later.  A  quick  check 
with  the  wattmeter  in- 
dicated that  my  1-Watt 
transceiver  was  putting  out 
700  mW  in  the  high  power 
mode  and  about  200  mW  in 
low.  What  the  heck,  this  did 
not  seem  to  be  an  applica- 
tion requiring  excessive 
power  and  the  batteries 
would  last  longer.  A  camera 
strap  was  clipped  to  the 
securing  ring  on  the  hand- 
held; it  went  over  my  shoul- 
der and  I  headed  for  the 
wild  blue  yonder. 

The  results  of  the  first 
test  were  mixed  On  the 
plus  side  it  soon  became 
obvious  that  even  200  mW 
was  sufficient  for  solid 
communications  to  the 
ground  mobile,  with  alti- 
tude more  than  compensat- 
ing for  the  inefficiencies  of 
that  rubber  excuse  for  an 
antenna.  Although  the 
noise  of  the  engine  was  def- 
tnitely  modulating  the 
downlink  signal,  the  voice 
audio  had  no  trouble  riding 
over  it  with  adequate  intel- 
ligibility. Reception  up- 
stairs was  another  matter, 
however.  Between  the  en- 
gine noise  and  the  ear 
plugs,  there  was  no  way 
that  that  little  speaker  was 
going  to  be  heard. 

That  evening  was  spent 
on  the  bench  adding  an  ear- 
phone  lack.  The  next  morn- 
ing, complete  with  an  ear- 
phone, we  had  a  working 
communications  system. 
My  partner  was  impressed 
enough  by  the  tests  that  he 
is  hitting  the  code  tapes  and 
books  to  join  the  party.  Re- 
finements now  under  way 
include  a  padded  clamp- 
rack  for  the  radio,  a  quarter- 


Tbe  author  photographed  during  a  landing  approach.  Land- 
ings are  typical ty  made  at  tow  throttle  with  pilot  weight 
shifted  well  forward  to  keep  the  nose  down  and  the  air- 
speed up.  Note  the  bent  knees  to  achieve  this  attitude. 


wave  whip  mounted  above 
the  wing,  and  a  "radio  hel* 
met"  with  a  pair  of  built-in 
padded  phones  and  a  boom 
mike.  Included  will  be  a 
remote  PTT  switch  on  the 
control  bar  to  minimize  the 
one-handed  flying. 

Although  the  system  was 
put  together  for  utility  com- 
munications, it  soon  be- 
came obvious  that  it  had 
great  potential  for  recrea- 
tional hamming.  Take  my 
word  for  it:  If  you  give  a  call 
on  52  from  1500  feet,  you 
will  get  answered.  It's  really 
fun  when  the  crowd  discov- 
ers what  you  are  flying  and 
starts  preparing  the  com- 
mitment papers  while  you 
are  still  aloft.  The  crystal 
complement  includes  52 
for  general  hamming,  an 
out  of  the  way  frequency 
for  utility  communications 
(never  mind  where),  and  a 
couple  of  wide-coverage  re- 
peaters for  the  day  I  have  to 
set  down  in  someone's  back 
40  and  call  in  the  cavalry. 

Obviously,  if  you  are  an 
amateur  interested  in  ultra- 
lights, you  have  the  conn- 
munications  problem  half 
licked.  Although  all  tests  to 
date  have  been  on  two,  50, 
220,  and  440  MHz  would  be 
equally  useful  although  low- 
er-band occupancy  might 
reduce  the  recreational 
potential. 


A  real  interesting  feature 
is  the  potential  for  recruit- 
ing ultralight  types  to  ham 
radio.  Most  tend  to  be  high- 
ly interesting  people  and 
we  certainly  can't  complain 
if  we  snag  a  few  of  those  to 
swell  our  ranks.  Most  fliers 
would  like  reliable  radio 
systems  and  amateur  radio 
can  provide  just  that  with  a 
little  study.  An  instructor 
with  a  ham  ticket  need  only 
equip  students  with  a  pock- 
et scanner  to  be  able  to  pro- 
vide those  much-needed  in- 
structions at  panic  time.  The 
advantages  are  obvious  and 
the  canny  amateur  will  work 
a  deal  exchanging  code  and 
theory  tutoring  for  flight  in- 
struction. 

One  of  the  things  that 
keeps  our  hobby  healthy  is 
the  constant  search  for  new 
modes  as  well  as  new  appli- 
cations for  existing  technol- 
ogy. There  will  certainly  be 
lots  of  ultralight  fliers  out 
there  — the  industry  deliv- 
ered only  a  few  thousand 
units  in  1980,  but  '81  sales 
soared  quite  a  ways  past 
10,000  and  most  people 
are  still  unaware  of  their 
existence  Who  knows,  afr 
mobiles  might  become 
quite  common.  As  for  me, 
try  52  and  please  excuse  the 
background  noise  — I  only 
worry  when  it  stops!! 

73  Magazine  *  June,  19&4    t^ 


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24     73  Magazine  •  Jun^,  1984 


CHAMPAGNE  RTTY/CW 

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-1  Computer  Patch^"  Interface 

The  AEA  Model  CP-1  Computer  Patch^"  interface  will  let  you  discover  the  fastest  growing 
segment  of  Amateur  Radio:  computerized  RTTY  and  CW  operation. 

When  used  with  the  appropriate  software  package  {see  your  dealer),  the  CP-1  witi  patch 
most  of  the  popular  personal  computers  to  your  transceiver  for  a  complete  full-feature 
RTTY/CW  station.  No  computer  prog  ramming  skills  are  necessary.  The  CP-1  was 
designed  with  the  RTTY  neophyte  in  mind,  but  its  sophisticated  circuitry  and  features  will 
appeal  to  the  most  experienced  RTTY  operator. 

The  CP-1  offers  variable  shift  capability  in  addition  to  fixed  170  Hz  dual  channel  filtering. 
Auto  threshold  plus  pre  and  post  limiter  filters  allow  for  good  copy  under  fading  and  weak 
signal  conditions. 

Transmitter  AFSK  tones  are  generated  by  a  clean,  stable  function  generator.  Plus  (+)  and 
minus  (-)  output  Jacks  are  also  provided  for  CW  keying  of  your  transmitter.  An  optional 
low  cost  RS-232  port  is  also  available,  The  CP-1  is  powered  with  16  VAC  which  is  supplied 
by  a  117  VAC  wall  adaptor  included  with  the  CP-1. 


{^off^lcr  F^A£^ 


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Please  write  AEA  for  more  detailed  information  on  the  CP-1  or  better  yet.  see  your  favorite  dealer 
and  compare. 

Prices  and  specifications  subject  to  change  without  notice  or  obligation. 


ADVANCED  ELECTRONIC  APPLICATIONS,  INC. 

P.O.  Box  C-2160,  Lynnwood,  Wa.  98036  ^^ 

206/775-7373        Telex:  152571  AEA  INTL 


Brings  you  the 
BreakthrougKI 

73  Magazine  •  June,  1984    25 


Sam  Cf €Aion  K6EW 
2940  Ariingtcm  Aver\ue 
Fuf tenon  CA  92635 


Creason's  Do-It  DVM 

The  more  Sam  builds,  the  more  smart  people  pay  attention. 


One  of  the  handier 
pieces  of  test  equip- 
ment for  someone  who  ex- 
periments With  solid-state 
analog  and  digital  equip- 
ment is  a  hand-held  DVM.  I 
recently  needed  such  a  de- 
vice to  measure  dc  and  rf 
voltages.  Since  I  had  no 
need  for  either  ac  or  Ohms 
scales,  I  chose  to  save  a  few 
dollars  by  building  my  own. 
A  schematic  of  the  result  is 
shown  in  Fig.  1. 

The  heart  of  the  DVM  is 
an  Intersil  ICL7106  3^1/2- 
digft    single-chip    analo^to- 


converter  [ADQ  with 
on-board  liquid-crystal-dis- 
play [LCD)  drivers.  Powered 
by  a  g^volt  battery  in  the 
manufacturer's  recommend- 
ed circuit  it  provides  a  basic 
01999-volt  full-scale  DVM. 
Additional  components  ex- 
pand the  voltage  measure- 
ment capability  and  drive 
the  decimal  points  of  the 
LCD. 

The  components  which 
are  grouped  at  the  upper 
left  of  the  7106  (pins  27-29, 
38-40)  support  internal 
functions:  an  oscillator,  ref- 


erence generator,  auto-zero 
circuit,  and  integrator  The 
interested  reader  should 
consult  a  data  sheet  on  the 
7106  to  learn  more  about  its 
internal  workings. 

The  components  which 
are  grouped  at  the  lower  left 
of  the  7106  (pins  1,  26, 
30-32,  35,  and  36)  provide 
power,  a  reference  voltage, 
and  the  means  to  connect 
the  voltage  to  be  measured. 
Switched  %volt  power  is  ap- 
plied between  V-f  and  V  —  , 
The  22k  fixed  resistor  and  Ik 
trim  pot     which     are     con- 


40 


Rl 
— iWA 


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100  SF 


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R 
— ^ 


C4 


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2f 


*IN4 


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m 

909N 


SI  4 


KB 
90  9  K 


■■■ 


9  09K. 


nio 

I  OIK 


IK   P^ 


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QOTpF 


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R4 

IM 

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*/0  COKVERTtH 


1000 


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flCF  HI 
NEr  LO 
tJIHI 
IH  U> 
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Fig.  1,  Schematic  of  the  DVM  LCD  segmenf-c/rrver  pins  on  the  7106  are  shown  along  with  the 
dmignations  of  the  se^nents  which  they  drive.  No  pinouts  are  shown  for  the  LCD,  since  they 
vary  from  device  to  device.  Undesignated  resistors  are  V4-Watt,  5%  tolerance.  R5  is  a  10%- 
toterance  trimmer.  R6  through  R10  are  V4'Watl  1%  tolerance,  R6  is  a  90Sk  and  nine  1M  resis- 
tors in  series.  R10  is  a  Ik  and  a  10-Ohm  resistor  in  series.  Undesignated  capacitors  are 
myiar^^.  CI  is  mica.  All  capackors  are  10%  tolerance,  100-volt 

26     73  Magazine  •  June,  13&4 


nected  from  V+  to  REF  LO 
generate  a  reference  volt- 
age for  the  converter  The 
reference  is  stable  because 
REF  LO  and  COMMON  are 
tied  together,  and  COM- 
MON is  internally  clamped 
at  about  2.8  volts  below 
V  + ,  The  voltage  to  be  mea- 
sured (0.1999  volts  maxi- 
mum) is  applied  between  IN 
HI  and  fN  LO  (the  latter  and 
COMMON  are  tied  ten 
gether).  A  1 -megohm  resistor 
limits  the  current  which  can 
flow  in  response  to  an  over- 
voltege.  Together,  the  1 -meg- 
ohm resistor  and  a  0,01 -uF 
capacitor  form  a  simple 
low-pass  filter.  Taps  on  the 
10-megohm  resistive  ladder 
between  +IN  and  —IN  pro- 
vide 1.999-volt  19.99-volt 
and  199.9-vo!t  ranges,  se- 
lected by  switch  SI  a. 

With  the  exception  of  pin 
37,  the  remaining  pins  on  the 
7106  drive  the  LCD  directly. 
Unlike  an  LED  display,  an 
LCD  must  be  driven  by  ac 
waveforms,  A  dc  drive  volt- 
age will  bum  out  an  LCD  in  a 
matter  of  minutes.  The  7106 
applies  a  60-Hz  5-volt  peak- 
to-peak  square  wave  to  the 
backplane  of  the  LCD.  As 
long  as  the  same  waveform 


PROBE    TIP 


too* 


PMOMO 


— ® 


tOOV 


irt^Aizi 


fig.  2,  Schematic  of  the  rf 
pftiba 


Photo  A.  Internal  construction  of  the  DVM, 


Photo  B.  Some  construction  details  of  the  rf  probe. 


is  applied  to  a  segment  of 
the  LCD,  that  segment  is  off. 
A  segment  is  on  when  the 
waveform  applied  to  it  is  in- 
verted with  respect  to  the 
waveform  applied  to  the 
backplane  The  7106  has  in- 
ternal drivers  which  ac- 
complish the  inversion  for 
the  minus  sign  and  each 
segment  of  each  of  the  four 
digits. 

The  circuit  which  consists 
of  the  CD4030  quad  exctu- 
sive  OR  gate,  SI  b,  and  six  re- 
sistors is  needed  in  order  to 
drive  the  decimal  points. 
One  input  of  each  of  the 
three  active  EOR  gates  is 
connected  to  the  backplane 
drive  signal.  Depending 
upon  the  setting  of  SI  b,  the 
second  inputs  of  two  of  the 
active  EOR  gates  are  pulled 
Jow  by  47k  resistors  tied  to 
ground  (pin  37,  TEST,  is  digi- 
tal ground).  These  two  gates 
pass  the  backplane  drive  sig- 
nal unchanged,  and  the  cor- 
responding decimal  points 
am  off.  The  second  input  of 
the  remaining  active  EOR 
gate  is  pulled  high  via  Sib 
and  a  Ik  resistor  tied  to  V  + , 
This  gate  inverts  the  back- 
plane  drive  signal,  and  the 
ccHtesponding  decimal  point 
is  on. 

With  the  possible  excep- 
tion of  the  LCD,  all  parts  for 
the  DVM  are  available  from 
the  usual  mailorder  houses. 
Also  available  is  an  evalua- 
tion kit  which  contains  a 
7106,  an  LCD,  the  passive 
components    to    build    the 


bam-bones  0.1999^volt  full- 
scale  DVM,  and  a  printed 
circuit  board.  The  compo- 
nents for  the  input-voltage 
divider  and  decimal-point 
circuit  and  the  rotary  switch 
and  toggle  switch  must  be 
obtained  separatefy.  I  used 
a  kit  for  the  convenience  of 
die  PC  board.  However  buy- 
ing the  individual  compo- 
nents and  assembling  them 
on  a  piece  of  perf board  will 
cut  the  cost  significantly. 

Photo  A  shows  the  inter- 
nal  construction  of  the 
DVM.  About  V2 '  of  the  PC 
board  which  is  suppfred  in 
the  evaluation  kit  is  cut 
away.  The  cut  is  made  at  the 
upper  edge  of  the  pads 
which  accommodate  the  in- 
put jacks.  A  1 "  strip  is  then 
cut  from  the  bottom  of  what 
remains  of  the  PC  board  and 
reconnected  at  an  angle  of 
90  degrees.  Lengths  of  no.  20 
wire  restore  the  connections 
and  provide  mechanical 
support  for  the  strip. 

All  capacitors  except  the 


mica  device  are  nnounted  on 
the  rear  of  the  board  A 
piece  of  perf  board  contain- 
ing the  resistive  ladder  for 
the  input  circuit  and  the 
decimal-point  driver  circuit 
is  mounted  1/4"  behind  the 
PC  board,  on  fiber  spacers. 
The  PC  board  is  mounted 
3/8"  behind  the  front  panel 
by  means  of  additional  fiber 
spacers.  The  entire  assembly 
is  held  together  by  6-32 
hardware.  The  enclosure 
measures  M/4"  long  by 
3-3/4"  wide  by  2"  deep  and  is 
of  unknown  brand,  A  simi* 
lar-size  mini-box  would  be  a 
suitable  substitute.  If  a 
larger  enclosure  is  accept- 
able, the  PC  board  may  be 
left  intact 

Fig.  2  is  a  schematic  of  the 
rf  probe,  which  consists  of  a 
resistor,  two  diodes  in  series, 
and  a  disc-ceramic  capaci- 
tor. The  measured  value  of 
an  rf  waveform  corresponds 
well  to  the  value  indicated 
on  the  DVM  when  a  100k 
resistor  is  used.  A  4.7-meg- 


Pwtft  List  for  Rf  Pfobe 

Par! 

Value                  Part  number 

Cost 

CI 

0^1  uF,  50  voft    DC.01/5CKJ) 

.08 

D1,D2 

1N34A                 27B-1123(FB 

JO 

J1 

274-346(F^ 

.45 

Alligator  clip 

27M78(R) 

.13 

Heat-shrink  tubing 

278^1 627<R) 

.50 

Phone  tip 

274-723(R) 

.50 

Copper  tubing  (local  hardware  store) 

.50 

Pirti  LM  tar  Dc  Probe 

Part 

Part  number 

Cost 

Coaled  test  leads 

278^760(R| 

o<Irt 

ohm  resistor  might  seem  the 
correct  choice,  given  the 
10-megohm  input  imped- 
ance of  the  DVM.  However, 
the  ADC  is  an  integrating  de- 
vice which  will  directly  give 
the  rms  value  of  the  recti- 
fied waveform.  Two  diodes 
are  used  in  series  to  allow 
measuring  rf  voltages  as 
high  as  30-40  volts. 

Photo  B  shows  some  corb 
stnjction  details  of  the  rf 
probe.  The  capacitor  is  just 
behind  the  body  of  the  probe 
tip,  a  Radio  Shack  274-723 
solderless  probe  tip  which  is 
cut  to  1-3/4'"  overalL  The 
component  assembly  mea- 
sures 4"  from  the  center  of 
the  large  portion  of  the 
phono  plug  to  the  opposite 
end  of  the  probe  tip.  The 
shield  for  the  probe  is  a  4" 
length  of  3/8"-i,d.  copper 
tubing.  The  lead  from  the 
ground  clip  is  soldered  into 
a  notch  at  the  end  of  the 
tubing.  Taping  a  1"  "U"  into 

Vondbfs  For  Parts 

For  part  numbers  marked  (FO: 

Radio  Shack— local 
For  part  numbers  marked  (J); 

Jameco  Electronics 

1355  Shoreway  Road 

Belmont  CA  94002 

(Minimum  order  $10.0€fl 
For  part  numbers  marked  (E): 

Electronic  Supply  Co. 

2486  3rd  Street 

Riverside  CA  92507 

(minimum  order  $5,00) 
or 

Dlgl-Key  Corp. 

PO  Box  677 

Thief  River  Falls  MN  56701 

73Magazme  •  June,  1984    27 


Puts  not  In  Evaluatkxi  KH 


Pari 

Value 

Part  nucnlMr 

Cost 

R6 

9.09  meg 

1M(E> 

4.50 

g0.9K(^* 

^ 

R7 

909k 

909K(E) 

.50 

R8 

90i9K 

90.gK(E) 

.50 

R9 

9.09k 

g.09K(E) 

50 

RIO 

1.01k 

Mm 

50 

10  Ohms  (E)** 

.50 

R11-R13 

Ik 

271-1321  (R) 

J» 

R14-R16 

47k 

271-1342(F^ 

.06 

Battery  conr>ector 

-(J) 

.10 

Case 

270€27(R> 

?.■» 

Battery,  9-vQlt 

2a464(FD 

59 

S1,2-pote,  3i>osmon 

275-1386(^1 

1.19 

S2,SPST 

27561^ 

1.69 

Knob 

274^15(R) 

.40 

14i3tn  DIP  socket 

-(J) 

.17 

Hookup  wire,  #22  stranded 

278-1307(03 

i19 

*  90,9k  and  nine  IM  in  series;  J4.50  Is  cost  of  nine  resistors, 

•*1k  and  10  Ohms  in  series* 

For  R6  through  RIO,  prefix  part  number  with  TRW/IRORNSSD, 


the  lead  avoids  stressing  the 
solder  joint 

The  first  step  in  assenv 
bfing  the  probe  is  to  tape  the 
exposed  leads.  Then  the 
component  assembly  is 
slipped  into  the  copper  tub- 
ing so  that  the   free   lead 


from  the  1N34A  lies  on  the 
solder  joint  of  the  lead  from 
the  ground  clip.  The  phono 
jack  is  soldered  in  two  or 
three  places.  When  the  tub- 
ing has  cooled,  the  free  end 
of  the  diode  is  quickly 
soldered    into    the    notch. 


SubslHutes  for  Parts  In  Evaluation  KK 

1 

Part 

ValiM 

Part  number 

Coat 

Rt 

100k 

271-1347{f^ 

m 

R2 

47k 

271-1342(R) 

j06 

R3 

27k 

271-1340(R) 

M 

B4 

1  nneg 

271-1356(i^ 

.06 

R5 

Ik,  variable    43P-1K(J) 

1.19 

C1 

100  pF 

DM15-101J(J) 

.35 

C2 

0.1 

MY.1/100(J) 

.27 

C3 

0.47 

MY.47/100(J) 

,45 

C4 

0.22 

MY.22fl00{J) 

;33 

C5 

0.01 

MY.01/100(J) 

,12 

Perfboard 

84P44W^ 

Z95 

A/D  oonvertef/drjver 

ICL7106CPMJ) 

9.95 

Banana  jacks  0 

274-725^ 

m 

Battery  holder 

270<}26(H) 

30 

4&pin  DIP  sockets 

-(J) 

.49 

aVfdlgit  LCD 

Unless  othenwise  £ 

shown,  resistors 

are  %  W,  5%, 

cart>on. 

100-pF  capacitor  is  dipped  mica;  others  are  mylar™,  100  V,  with 

values  in  microfarads.  Cut  one  40-ptn 

socket  In  half,  lengthwise. 

to  accommodate  width  of  display. 

Evaluation  kit  7106EV/Kit 

may  be  obtained  from  Jameco  Electronics  for  $34.95. 

Finally,  a  piece  of  heat- 
shrink  tubing  is  used  to 
cover  the  tubing.  The  cable 
for  the  probe  consists  of  a 
piece  of  RC-174  coax  with  a 
phono  plug  at  one  end  and  a 
pair  of  banana  plugs  at  the 
other. 


Once  the  DVM  is  built 
calibration  is  simple.  Select 
the  appropriate  range  and 
connect  a  known  dc*voltage 

source.  Adjust  R1  until  the 
correct  value  is  displayed.  A 
new  1 .5-volt  battery  is  a  con- 
venient source.  ■ 


/I/IIR/1GE 


Introducing  the  New 

B215  2  Meter 

Solid  State  Amplifier 

from 
Mirage  Communications 


2  Watts  In  —  150  Watts  Out 

$289.95 


Built-in  Rx  Preamp 

AU  Mode-SSB,  CW.  FM 

Remote  Keying 

DC  Fdwer  13.6  VDC  at  18  Amps 


5  Year  Limited  Warranty 

Optional  RC-1  Remote  Control  Avallal 

Afade  in  the  U.SA 


Available  at  Mirage  Dealers  Worldwide 


/VlliVIGE 

COIMMUNICATIONS  EOUIPIMENT.INC. 


P.O.  Bo.\  1000,  Morgan  Hill.  CA  95037 


(408)  847-1857 


73  MBgazfne  •  June,  1984 


NO  SHIPPING  CHARGES! 


TUBES 


T¥Pf 

PHJCE 

Trre 

PRICE 

TYPl 

pmct 

2C39  7289 

S  28  90 

813 

$42  50 

7643 

S  90  95 

3E2« 

e75 

1182.4600  A 

42500 

7854 

11050 

2Kia 

17000 

4600A 

425  00 

ML7855KAL 

106  25 

3-500Z 

86  70 

4624 

263  50 

7M4 

12  70 

3-lOOQZai&4 

34000 

4657 

7150 

6072 

7150 

3B2Q/aG6A 

a  to 

4662 

esDo 

6106 

4  25 

3C!<4aDU7^6961 

21S0O 

46iS 

425  00 

81 17  A 

191  25 

3C5<lOOOA7/8283 

447  00 

5675 

36  00 

8121 

9350 

3C  X  3000  F 1/8239 

482  00 

5721 

2t5  50 

6122 

93  50 

3CW30000H7 

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5766 

106  25 

8134 

399  50 

3X25O0A3 

402.00 

5819 

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8156 

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sees 

5637 

198  OO 

3236 

29  75 

4-1?SA/402i 

67*5 

5861 

119.00 

8295  PL 172 

425  00 

4.2S0A/5D22 

83  SO 

5867A 

157  25 

8458 

29  75 

4-4Q0A/a43a 

83  50 

S869/AX9902 

^29  50 

8462 

110  50 

4-4009/7527 

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5875/ A 

35  70 

6505A 

80  75 

4-400C/6775 

93  50 

5851 /6L6 

650 

8533VW 

1T5.60 

4.1 000 A.  8166 

37?  50 

5693 

51  OO 

8560/A 

63  7S 

4CX250a?203 

46  00 

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85  00 

4CX?S0FG  ftfiSi 

63  75 

S894B873I 

46  00 

3606 

32  30 

4CX250IO824S 

t02  25 

5946 

335  75 

6824 

65  00 

4CX?5aR  75aow 

75  50 

6083  AZ»00 

80  75 

0637 

59  50 

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144  SO 

6146  6r«8A 

7  25 

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90O 

3647 

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8075 

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naOO 

61 56 

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8877 

39525 

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7TOO0 

6159 

n  75 

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4CX10QOA.81&8 

206  00 

6159B 

20  00 

8950 

1105 

4CX10C»A.ftt6a 

412  25 

6161 

276  25 

8930 

116  50 

4CX15CI0B  8^60 

471  00 

6260 

36  25 

6L6  Meeii 

2125 

4CX5000A.8170 

935  00 

6291 

153  00 

eiSGC 

425 

4CXlOOOOO.»t7t 

1067  00 

6293 

20  50 

6CA'  EL34 

460 

4CX 15000  A/ 8281 

1275  00 

6360.' A 

455 

6CL6 

300 

4CW600F 

603  SO 

6399 

459  00 

6DJB 

2  T5 

4D32 

204  OO 

65SOA 

8  50 

eoos 

5.60 

4E27A5-125B 

204  OO 

6B81B^  803^  A^  8552 

8  50 

eGFS 

5O0 

JPflSOA 

170  50 

6697 

136  00 

6GJ5A 

5  30 

4PR»)e 

283  2S 

6907 

67  IS 

6GK6 

5  10 

4pfieSA.STfl7 

*48  7S 

6922  6  DJB 

4  25 

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5  10 

4ri^1000A.St39 

50150 

6939 

16  75 

6HF5 

7  45 

4XTS0A.rCI^ 

5100 

709* 

212  50 

WG6A 

535 

4Xf50D/760d 

81  OO 

7t17 

32  75 

6JM6 

5  10 

4X2S0a 

38  25 

72t1 

85  00 

fijN6 

5  10 

4X2S0F 

38  25 

72T3 

255  00 

Ejsec 

615 

4X500A 

350  00 

7214 

25SOQ 

6KN6 

4.30 

5CX15430A 

&6100 

7271 

11J  75 

6KD6 

700 

KTea 

23  50 

7289^2CJ9 

26  90 

6LF6 

5  95 

4TSd 

30  26 

7360 

11  50 

6L06GE: 

5  95 

41&C 

53  00 

7377 

72  25 

6L06  GMJ&  SyUtrria 

765 

572B  TT60i 

42  50 

7408 

2  10 

6ME6 

755 

592  3 -200 A  3 

170  SO 

7609 

80  75 

12AT7 

30O 

807 

7  25 

7735 

30  SO 

12*  X7 

2  55 

en  A 

12  75 

ML/BISAL 

51  DO 

12BV7 

4  25 

812A 

24  75 

T2JB6A 

5  50 

R  F  TRANSISTORS 


2N1561 

21  25 

2^S4426 

1  57 

2N5913 

2  75 

MnFZ23 

2N1562 

21  25 

2f^4430 

10  03 

2NS§16 

30  60 

MRF22J 

2N15E2 

19  99 

2N4fS7 

2  93 

2N5922 

8  50 

MBF231 

2IM1692 

21  25 

2N4f59 

1  95 

2NS923 

2125 

MfiF232 

2N2flS7JAN 

3  49 

2  N  5090 

11  73 

2NS941 

1955 

MRF233 

2N2657JANTH 

3  49 

2N5106 

2  93 

2N5944 

880 

MRF237 

2N2876 

11  4i 

2N5T09 

145 

2N5945 

980 

MRF236 

2N2947 

15  60 

2N5160 

2  95 

4gL|4jL«Jt 

1225 

MRF239 

2I^94« 

11  05 

2^5177 

1840 

2Nm90 

660 

MRF245 

i^l2»4i 

13  19 

2N5179 

0  88 

2N6081 

10  25 

MRF247 

2N2957 

1  32 

2N5f26 

47  60 

2N60a2 

10  75 

MRF304 

2N3375 

14  55 

2N55S3 

295 

2N6083 

11  25 

MRF309 

2N3553 

1  32 

2  N  5589 

8  30 

2N6084 

12  75 

MPF3T4 

2  N  36  32 

13  19 

2  N  5590 

9  30 

2N6094 

9  35 

.MRF315 

2N3733 

9  35 

2N5591 

n  75 

2N5095 

T020 

MNF317 

2N3618 

4  25 

2IM5637 

T3  20 

2^6096 

1370 

MfiF<20 

2  N  3666 

t  10 

2NS641 

to  55 

2^(6097 

1760 

MFfFJ2! 

2N3666JAM 

1  67 

2N5642 

Tits 

2f«i05 

1765 

MRFJ22A 

2  N  3924 

2  85 

2N5643 

13  20 

2M6136 

16  55 

MBF427 

2N3927 

14  65 

2N5645 

11  75 

2N6166 

34  20 

MPF428 

IN  3950 

21  25 

2^^5646 

17  59 

2N6201 

42  50 

MRF433 

2N4012 

9  35 

2N5651 

9  39 

2N6304 

1  35 

MFJF449A 

2N4041 

11  90 

2N5691 

1530 

2N6459 

1530 

MRF450A 

2N4072 

1  53 

2NS7@4 

22  95 

2N6567 

A  55 

MRF453A 

2Nt4080 

3  85 

2NS8.16 

295 

2M6660 

58  00 

MRF454A 

2N4T27 

17  85 

2N5842 

720 

2M5942 

34  00 

MI^FiSSA 

2N4427 

1  10 

2N5d49 

17  00 

MftF206 
Mf1F212 

13  70 
13  70 

MnF45a 

11  25 

MRF463 

13  IS 

MRf472 

9  28 

MRf475 

10  25 

MRF476 

10  75 

MHF477 

2  70 

MR  F  492 

1175 

MRF5a2 

M6S 

IIHF503 

30  30 

MR  F  504 

30  30 

MRF509 

36  95 

MRF511 

20  75 

MRF5i5 

2425 

MRF517 

24  55 

WRF559 

54  35 

MRF605 

1700 

MPFet8 

31  26 

MRFS2B 

35  19 

MRF629 

14  65 

WRF644 

39  10 

MRF646 

10  25 

MnF8l6 

10  75 

MRF823 

1230 

MRFSOi  (3  LEADSJ 

15  65 

WFEF901  M  LEADS) 

17  10 

M^F^OA 

1360 

WHF911 

17  60 

MRF961 

NICORN  ELECTRONICS 


203 


818  -341-8833 


10010  CanogaAve,UnitB  8,  Chatsworth,  CA  91311 


Mintmum  Order  SI5.00  -  No  Shippini  Chirin  On  Prepsid  Orderi  -^  COO  Add  IKS  -  UPS  Blue  Mi  1300  -  URl  R»i4enli  Add  i'/t\  Si)ci  Tu. 

Pcrtonal  Chccki  Held  for  Dufinct  VISA-MC  SEND  FOR  FREE  CATALOG. 


Leon  Ftetcfwf  N6HV7C 
274  Webster  Drive 
Ben  Lomond  €A  95005 


Meeting  Ends  Make 

These  ten  tips  will  better  your  club.  Are  you  friendly  or  frigid? 


Recently,  a  ham  I  know 
moved  to  an  area  which 
has  two  ham  clubs.  '*And 
they're  both  mighty  big 
bombsf"  he  told  me, 

[  asked  him  what  he 
meant 

"I  went  by  myself  to  the 
club  meetings  — they  were 
on  different  nights,  of 
course.  When  I  arrived,  at 
both  clubs,  there  were  about 
20  members  already  there, 
shooting  the  breeze  in  smalf 
groups.  Man^  w&^e  they  un- 
friendiyr 

But,  of  al[  the  problems 
hams  face,  are  unfriendly 
clubs  worth  worrying  about? 

If  you  need  statistics,  the 
answer  is  that  no  one  knows. 
While  there  are  more  than 
2,600  amateur-radio  clubs  in 
the  United  States,  no  one 
keeps  score  of  just  how 
many  could  be  rated  "un- 
friendly/' 

But  if  you  ask  — as  I 
have— a  number  of  hams 
who  move  often  or  who 
travel  frequently  and  visit 
local  clubs,  you,  too,  may  be 
surprised  at  just  how  wide- 
spread the  problem  seems 
to  be. 

30     7B  Magazine  •  June,  19S4 


Ask  for  example,  hams 
who  belong  to  such  clubs 
as  the  Naval  Postgraduate 
School  Amateur  Radio  Club 
in  A4onterey,  California.  Most 
of  the  members  are  service 
personnel  who  move  to  new 
duty  stations  every  couple 
of  years  or  so,  joining  new 
clubs  across  the  country  and 
abroad.  Several  members  of 
the  Monterey  club  have  told 
me  of  their  firsthand  experi- 
ences about  just  how  friend- 
ly or  unfriendly  some  clubs 
are. 

Yet  ifs  a  problem  that's 

hard  to  pinpoint 

Many  hams  are  reluctant— 
understandably  —  to  name 
clubs  or  even  cities  in  which 
they  feel  clubs  are  unfriend- 
ly. As  one  unhappy  member 
put  it  "No  use  me  mention- 
ing names  and  making  them 
still  more  unfriendly!" 

Yet  every  example  and 
quote  in  this  report  came 
from  hams  who  have  faced 
frigid  receptions  at  various 
ham  clubs. 

Another  reason  the  prob- 
lem of  unfriendly  clubs  is 
hard  to  pinpoint  is  that  what 


makes  a  club  seem  unfriend- 
ly to  one  ham  may  lead  an- 
other to  consider  that  club 
as  desirable.  One  newcomer 
told  me,  "When  I  went  to 
my  first  meeting  at  this  one 
club,  no  one  even  asked  me 
if  I  wanted  to  join/'  But 
another  ham  said,  "I  don't 
like  clubs  which  try  to  push 
you  into  joining  the  first 
time  you  come," 

Still,  in  spite  of  such  con- 
flicting views  and  the  lack 
of  data  on  how  many  clubs 
could  be  rated  ''unfriendly/' 
there  are  enough  hams  tell- 
ing horror  stories  about  un- 
friendly clubs  to  suggest  it 
might  be  wise  for  all  ham 
clubs—and  their  members  — 
to  take  a  careful  look  at 
themselves,  to  make  sure 
they  do  in  fact  make  new- 
comers feel  welcome. 

From  listening  to  hams 
who  belong  to  a  variety  of 
amateur-radio  clubs  in  dif- 
ferent cities,  I've  identified 
ten  tips  on  how  to  make  and 
keep  your  club  "neighbor- 
ly," to  use  the  word  of  a 
young  ham  from  Iowa  I 
talked  with  recently. 

The  first  tip  came  from  an 


experience  told  to  me  by  a 
ham  on  the  day  after  his  first 
visit  to  a  club. 

"I  walked  in  at  7:25  pm, 
five  minutes  before  the 
meeting  was  to  start.  A  cou- 
ple dozen  members  were  al* 
ready  there.  A  few  of  them 
were  talking  to  someone 
next  to  them.  The  rest  were 
silent— just  sitting  there,  not 
saying  a  word.  Only  a  few 
glanced  at  me  as  I  stood  at 
the  door,  trying  to  figure  out 
where  to  sit  No  one  invited 
me  in.  Not  a  one  said  any- 
thing to  me  or  even  gave  me 
a  nod." 

Tip  #1;  Ham  dubs  should 
rfesfgnafe  fwo  or  so  of  their 
members  to  be  greeters,  to 
welcome  newcomers. 

Greeters  don't  have  to 
be  — shouldn't  be  — formal 
They  don't  have  to  stand  at 
the  door,  wear  neckties  and 
jackets,  have  a  set  patter,  es- 
cort newcomers  during  the 
entire  meeting,  or  such.  In- 
stead, greeters  should  sim- 
ply keep  an  eye  on  the  club- 
room  door  as  they  mix  with 
other  members;  when  they 
see  an  unfamiliar  face,  they 


should  go  over  immediatefy, 
introduce  themselves,  and 
initiate  the  usual  ham  talk. 
Such  face-toface  meetings 
need  not  be  much  more 
structured  than  the  usual 
on-the-air  QSO. 

Once  the  greeter  has 
learned  a  few  of  the  special 
interests  of  the  newcomer, 
he  or  she  should  introduce 
the  guest  to  another  mem- 
ber With  similar  interests. 
The  point  is,  of  course,  to 
make  sure  first-time  visitors 
are  not  left  on  their  own  to 
search  out  members  with 
whom  they  may  feel  com- 
fortable. 

To  prod  my  friend  to  tell 
me  more  about  that  club 
which  ignored  him  as  he 
walked  in  to  its  meeting,  I 
asked,  ''So  what  did  you  do?" 

"There    were    just    three 

empty  chairs.  They  were  all 
together,  at  the  far  end  of 
the  table.  1  walked  down  to 
them.  No  one  asked  me  to 
sit  or  anything.  I  waited  a 
few  seconds  and  then  sat 
down.  The  guy  next  to  me 
gave  me  a  glance  and  then 
went  on  with  his  small  talk 
to  the  ham  across  the  table/' 

I  prodded  again:  "Not 
very  friendly,  huh?" 

"After  waiting  what  I 
thought  was  a  proper  length 
of  time  for  a  break  in  tfie 
chatter,  I  introduced  myself 
to  the  two  guys.  One  said 
'Hi/  gave  me  his  call,  and 
went  on  with  his  talk  about 
the  weather  or  something/' 

Tip  #2:  All  dub  members 
should  be  urged  to  talk 
with  newcomers^ 

This  is  so  basic  it's  almost 
embarrassing  to  mention. 
But  of  course  the  problem  is 
not  that  hams  are  socially 
unsophisticated,  not  know- 
ing that  they  should  talk  to 
others.  Rather,  many  of  us 
get  so  involved  in  our  own 
discussions  of  hamming  that 
we  may  ignore  others. 

Hams,  like  many  people 
everywhene,  can  benefit 
from  increasing  their  sen- 
sitivity to  the  interests  and 
needs  of  others,  especially 
to  newcomers.  That  will  not 


only  make  recent  an^ivals 
feel  welcome,  but  also  it  will 
help  you  feel  better  As 
American  humorist  Philan- 
der )ohnson  wrote,  "New 
friends  leave  the  heart 
aglow/' 

My  friend's  concern  about 
unfriendly  ham  clubs  sound- 
ed deep,  so  I  urged  him  on: 
"Meet  anyone  later  in  the 
meeting?" 

"The  meeting  started  out 
with  the  usual  self-introduc- 
tions. You  know,  they  went 
around  the  room,  each  ham 
giving  his  or  her  name  and 
call.  When  it  came  my  turn, 
I  said  just  what  the  others 
had— -my  name  and  call  — 
adding  that  I'd  just  moved 
into  the  area/' 

"Did  that  spark  any  inter- 
est?" 

"Not  a  bit  The  self-intro- 
ductions continued." 

Tip  #3:  Make  all  introduc- 
tions worthwhile. 

Many  clubs  open  meet- 
ings with  self-introductions 
which  are  given  quickly  and 
briefly;  many  are  muttered, 
some  are  embellished  with 
bits  of  "in"  humor,  getting 
laughs  from  only  a  few.  Such 
self-introductions  become  so 
routine  they  are  close  to 
meaningless. 

I  asked  several  long-time 
members  of  various  clubs, 
"What  good  are  those  intrch 
ductions?"  Answers  were 
limited. 

"Gets  members  partici- 
pating/' (Saying  just  three  or 
so  words  equals  participa- 
tion?) 

"We  get  to  know  who's 
here;"  (To  find  that  out 
most  members  have  already 
looked  around  long  before 
the  self-introductions.) 

"Lets  everyone  have  a 
moment  in  the  spotlight" 
(Hams,  with  all  their  distinc- 
tive skills  and  achievements, 
need  that?) 

Introductions  should  not 
take  much  time  of  a  meet- 
ing, but  they  should  be  valu- 
able. Members  should  be 
encouraged  to  speak  slowly, 
clearly,  and  add  a  few  words 
about  their  recent  activities, 
interests,  or  such    Setting  a 


limit  IS  wise— the  member- 
ship guide  for  one  group 
states,  "No  more  than  20 
words" 

One  good  technique  for 
improving  introductions  was 
suggested  by  Gene  Piety 
KH6PP,  now  living  in  Santa 
Cruz,  California: 

Tip  #4:  Have  a  greeter  in* 
troduce  newcomers. 

Only  a  few  words  are 
needed:  "Here's  a  ham  new 
to   our   area,    interested    in 

home-brewed  rigs.  He^s  just 
moved  here  from  (. .   I  His 

name    is   (,,.);    his    call    Is 

An  interesting  technique 
to  add  friendliness  to  clubs 
was  initiated  by  Bill  Webb 
NK6H,  of  Monterey,  Califor- 
nia, when  he  was  president 
of  his  focaf  ham  club: 

rip  #5;  At  each  club  meet- 
ings have  one  or  two  mem- 
bers give,  say,  a  S-minute 
autobiography,  preferably 
with  slides^  artifacts^  or 
such^  detailing  their  shack 
and  their  interests  beyond 
hamming. 

These,  of  course,  should 
not  be  formal  speeches. 
Brevity  is  the  key. 

There  is  the  problem  that 
some  members  may  be  hesi- 
tant to  give  such  talks.  Per- 
haps they  overlook  the  fact 
that  when  they're  A3-ing, 
there  may  well  be  far  more 
people  listening  than  are  at 
their  club  meetings.  So  start 
by  asking  those  members 
who  seem  to  like  to  get  up 
and  speak.  Also  ask  frequent- 
ly for  volunteers  — that  ap- 
parently shy  one  may  well 
be  masking  a  stimulating 
speaker!  After  a  few  mem- 
bers have  presented  them- 
selves, most  of  the  others 
will  usually  want  to  take 
part,  too.  Certainly  some 
may  be  strictly  against  get- 
ting up  to  give  such  talks, 
but  there's  no  need  to  pres- 
sure them  into  participating. 

Another  idea  to  help 
clubs  welcome  newcomers 
came  from  this  story  told  by 
a  ham  in  central  Califor- 
nia—thafs  as  close  as  he 
wanted  to  identify  this  club. 


"After  my  first  meeting, 
when  I  got  home,  !  realized  I 
really  hadn't  teamed  much 
about  the  club.  Sure,  I  heard 
the  treasurer's  report— they 
had  several  hundred  dollars 
in  the  till.  But  since  they 
didn't  say  what  activities 
they're  into.  I  couldn't  tell  if 
they  had  money  or  not  The 
president  said  the  newslet- 
ter gave  details  about  an  up* 
coming  field  day,  but  I 
didn't  see  a  copy— they 
were  mailed  to  the  mem- 
bers'  homes.  And  I  met  a 
couple  of  guys,  but  too  fast 
for  me  to  remember  all  their 
names  and  calls  " 

Tip   #6:    GfVe   information 
packets  to  newcomers. 

The    packets    should    in- 
clude, at  the  very  least: 
I.List  of   members  with 
their  calls,  addresses,  and 
phone  numbers. 

2.  List  of  committees  — 
members  and  tasks, 

3.  Minutes  of  the  last  few 
meetings. 

4  Copies  of  recent  news- 
letters. 
5-  Schedule  of  activities. 

6,  Repeater  frequencies 
for  the  area. 

7,  A  copy  of  the  club's 
constitution. 

8,  Instructions  on  joining. 

Other  materials  some  or- 
ganizations give  to  new 
members— although  I  know 
of  no  ham  clubs  which  pro^ 
vide  these  — include: 

1.  Local  sources  for  equips 
ment  parts,  services,  etc. 

2.  List  of  names  of  mem- 
bers' spouses  and  chil- 
dren (helps  develop  fami- 
ly involvement). 

3.  History  of  the  club. 

4.  A  few  copies  of  articles 
about  the  club  — say  the 
top  three  articles  pub- 
Ibhed  in  the  last  year 
or  so. 

Here's  the  experience  of 
another  ham.  Ifs  valuable 
because  it  points  to  another 
tip  to  help  ensure  that  visi- 
tors don't  come  to  just  one 
of  your  club's  meetings  and 
then  never  show  up  again. 

"The  club's  secretary 
gave  me  an  application 
form  for  foining  the  club.  I 

TSMagaiine  •  June,  1984    31 


thought  that  was  a  nice 
touch.  Later,  I  read  the  ap- 
plication. It  included  a  state- 
ment 1  was  to  sign,  agreeing 
to  abide  by  all  provisions  oiF 
the  club's  constitution.  That 
seenied  overly  formal,  but  ! 
figured,  well,  maybe  they 
have  a  good  reason  for  that 
provision.  Only  they  hadn't 
given  me  a  copy  of  the  con- 
stitution. And  when  I  asked 
for  a  copy,  I  was  told  it  was 
being  revised  and  would  be 
ready  in  a  month  or  so,  but 
not  to  worn^,  just  go  ahead 
and  sign  anyway/' 

Tip  #7:  Give  newcomers  a 
copy  of  the  constitution^ 
ruhSf  by'ldws,  or  whatever 
guides  your  club. 

Even  if  your  constitution, 
for  example,  is  being  re- 
vised, prospective  members 
should  be  given  a  copy  of  it 
so  they'll  know  the  ground 
rules  as  they  are  at  the  mo- 
ment Many  prospective 
members  consider  such  doc- 
uments quite  seriously.  They 
like  to  know  what  they're 


getting  into— how  decisions 
are  made,  dues  increased, 
leaders  selected,  and  such. 
They  don't  agree  with  the 
advice  of  American  writer 
George  Ade:  "To  ensure 
peace  of  mind,  ignore  the 
rules  and  regulations/' 

An  officer  of  one  ham 
club  I  visited  handed  me  an 
application  form  on  which 
two  members  were  to  sign 
as  "sponsors"  of  new  mem- 
bers. But  since  I  didn't  know 
anyone  in  the  club  and  since 
neither  that  club  officer  nor 
that  form  told  me  how  to 
get  sponsors,  membership 
seemed  to  be  blocked. 
Therefore: 

Tip  #8:  If  new  members  are 
to  6e  sponsored  by  estab- 
lished members^  make  sure 
information  on  how  to  get 
sponsors  is  readily  availaUe. 

Of  course,  if  a  member 
brings  a  newcomer,  he  or 
she  most  likely  would  be  a 
sponsor  and  would  usually 
help  find  additional  spon- 
sors,  if   needed.    But  clubs 


which  require  sponsors 
should  have  a  method  for 
providing  them  for  prospec- 
tive members  who  come  on 
their  own  to  a  club's  meet- 
ing. Creeters  or  club  officers 
might  be  appropriate  spon- 
sors. 

Another  problem  for  new- 
comers is  highlighted  on  the 
second  page  of  The  Radio 
Amateur's  Handbook:  "One 
of  the  first  obstacles  for  a 
person  seriously  interested 
in  amateur  radio  is  finding  a 
local  amateur  to  provide  as- 
sistance. This  volunteer 
amateur  is  called  an  'El- 
mer/" (Emphasis  added  by 
author,) 

Finding  an  Elmer  should 
certainly  not  be  an  "ob- 
stacle/' 

Rather,  an  Elmer  should 
be  immediately  available  to 
every  newcomer— to  pro- 
spective hams,  to  new  hams, 
and— just  as  important —to 
established  hams  who  move 
into  a  new  area. 

But  there's  an  additional 
problem  with  many  Elmers 


today.  They  may  tell  a  new- 
comer something  such  as, 
"If  you  need  help,  give  me  a 
ring." 

Thafs  not  really  much  of 
an  offer  of  help.  Elmers 
should  do  more  than  that 
One  good  example  is  J.  V. 
Rudnick  K6HJU  of  Felton, 
Caiifomia,  who  has  been  El- 
mer to  scores  of  hams.  He 
drops  by  a  new  ham's  shack 
a  few  days  after  they  meet 
He  comes  with  tools,  ready 
to  spend  a  few  hours,  if 
needed,  to  help  find  electri- 
cal interference,  check  out  a 
new  rig,  select  an  antenna 
location— all  examples  from 
his  recent  Eimering. 

Tip  #9:  Ensure  that  every 
prospective  member  gets 
an  Elmer — an  active  Elmer, 
a  real  Elmer, 

Finally,  the  essential  tip: 

Tip  #10:  Evaluate  your  club 
and  yourself:  How  do  you 
think  newcomers  would 
rate  youf 

Are  you  and  your  club 
friendly  or  frigid?  ■ 


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Tester  Project:  England  '83 

Wherein  you  flash-chance  transistors,  chap. 


Repffntsd  by  perrrtisslon  from  the  May,  1983,  issue  of  Radio  £  Eieo 
tronics  World,  200  North  Service  Road,  Brentwood,  Essex,  CM  14 
4SG,  England.  The  transistor  tester  was  designed  by  R  A.  i=^nfold, 
\2  The  Crescent,  Hadleigh,  Benfteet,  Essex,  SS7  2HF, 


Transistor  testers  normal- 
ly fall  into  one  of  two 
categories:  basic  units  where 
a  flashing  light  indicates  ser- 


viceable devices,  or  calK 
brated  metering  circuits 
which  give  a  rough  indica- 
tion of  current  gain.  Our  de- 


CIRCUIT  DESCRIPTION 

The  full  circuit  diagram  of  the  transistor  tester  Is  shown  in 
Rg.  2,  The  LF  oscillator  is  a  straightforward  7555  astable,  o(> 
erating  at  a  little  over  t  Hz.  ICI  is  a  CMOS  version  of  the  5^, 
used  pfimarily  t>ecause  of  its  low  current  consumption.  In  or- 
der to  permit  the  use  of  very  simple  NPN/PNP  switching,  sep- 
arate NPN  and  PNP  test  sockets  are  used,  as  well  as  separate 
zener  stabilizers  and  base  resistors.  In  the  prototype,  there 
was  a  tendency  for  very  high  gain  PNP  transistors  not  to  cut 
off  properly  due  to  the  output  of  IC1  going  slightly  less  than 
fully  positive  on  the  appropriate  output  half  cycles.  This  prob- 
lem was  completely  overcome  by  making  R4  and  R5  a  little 
higher  in  value,  and  adding  R3;  which  have  no  significant  ef- 
fect on  circuit  operation  In  other  respects. 

The  ciosed*loop  gain  of  the  circuit  Is  accurately  set  at  unity 
by  RIO  and  R13.  R6,  R7,  R1 1 ,  and  R12  are  cbse^tolerance  com- 
ponents so  that  consistent  results  are  obtained  when  moving 
from  PNP  mode  to  NPN. 

RS  and  R9  form  the  load  resistance  for  NPN  devices,  while 
R14  and  R15  a/e  the  load  resistance  for  PNP  devices.  The  val- 
ue of  R15  sets  the  operatingHcurrent  range  of  the  unit.  It  varies 
from  about  450  uA^  with  one  LED  switched  on,  to  around  12 
mA  with  all  ten  activated.  This  gives  a  reasonable  operating 
current  for  low  gain  devices,  whilst  removing  the  need  for  ex- 
cessive current  flow  when  high  gain  transistors  are  t>eing 
tested  R14  is  added  In  serl^  with  R1 5  merely  to  provide  addi- 
tional current  limiting  If  a  clo$dd<:ircult  device  is  checked. 

Switch  SW1  is  all  ttmt  is  required  to  give  NPN/PNP  switching. 
It  switches  the  input  of  the  display  circuit  to  either  the  output 
of  IC2  or  the  PNP-col lector  test  socket  (note  that  iC2  has  a 
class  A  output  stage  which  enables  its  minimum  output  volt- 
age  to  swing  down  to  near  the  negative  supply  potential). 

The  display  driver  Is  an  LM3815N  integrated  circuit  (IC3J, 
which  Is  similar  to  the  popular  LM3914  device.  The  LM3914 
has  ten  linear  LED  threshold  voltages,  whereas  the  3915  has  a 
logarithmic  scale  with  the  LED  threshold  voltages  at  3^ B  In- 
tervals. ITiis  enables  a  wider  range  of  current-gain  values  to 
be  covered,  with  ti^  maximum  value  being  about  thirty  times 
higher  than  the  minimum,  R16  controls  the  LED  operating  cur- 
rent, and  the  specified  value  provides  around  4.5  mA. 


sign  is  really  a  cross  between 
these  two.  it  uses  a  flashing 
10-LED  bar  graph  to  indicate 
whether  or  not  the  transistor 
is  usable— the  number  of 
lEDs  activated  gives  an  indi- 
cation of  current  gain.  This 
novel  system  enables  checks 
to  be  made  very  rapidly  and 
easily,  as  well  as  providing 
more  reliable  and  informa- 
tive results  than  a  single- 
LED  tester. 

Design 

The  basic  setup  used  In 
the  transistor  tester  is  shown 
in  Fig.  1,  Schematic  (a)  shows 
the  block  connections  for 
testing  PNP  transistors  and 
(b)  shows  the  slightly  differ- 
ent arrangement  needed 
when  checking  NPN  devices. 

Looking  first  at  the  PNP 
mode,  a  low-frequency  os- 
cillator drives  the  base  of 
the  text  device  via  a  resistor 
which  sets  the  base  cur- 
rent The  transistor  is  thus 


switched  on  only  when  the 
output  of  the  oscillator  is  in 
the  low  state  (it  is  cut  off 
when  the  output  is  high).  A 
zener  diode  is  used  to  give  a 
stable  output  voltage  from 
the  oscillator  so  that  a  rea- 
sonably stable  base  current 
results. 

The  bar-graph  driver  and 
display  are  fed  with  the  volt- 
age developed  across  the 
collector  load  resistor.  Cir- 
cuit values  are  chosen  so 
that  a  very  low  gain  device 
produces  only  sufficient 
voltage  to  activate  one  or 
two  LEDs,  while  a  very  high 
gain  device  will  activate  all 
ten.  So,  with  a  serviceable 
device  being  tested,  the  LED 
display  should  flash  on  and 
off,  and  the  number  of  LEDs 
will  indicate  the  gain. 

In  the  NPN  mode,  an  os- 
cillator, zener  stabilizer,  and 
series  resistor  are  again  used 
to  pulse  the  base  of  the  test 
transistor  with  a  reasonably 


»LED 
ftJUWUPH 


m% 


■*Mr- 


-n 


Fig,  1.  The  two  basic  circuit  configurations  for  testing  NPN 
and  PNP  transistors. 


34    7^  Magazine  •  June,  1984 


( 


stable  current  However, 
there  is  a  minor  complica- 
tion  in  that  the  voltage  de- 
veloped across  the  load  re- 
sistor is  relative  to  the  posi- 
tive supply,  whereas  the  bar- 
graph  driver  requires  an  in- 
put voltage  referenced  to 
the  negative  supply  rail  A 
unity-gain  inverting  amplifi- 
er is  therefore  used  between 
the  load  resistor  and  the  dis- 
play driver  to  give  a  suitable 
input  signal  for  the  latter. 

Construction 

Practically  all  the  com- 
ponents are  fitted  on  the 
printed  circuit  board,  the 
only  exceptions  being  the 
battery  and  the  sockets.  De- 
tails  of  the  PCB  wiring  are 
pfDvkled  in  Fig,  3,  If  the  spec- 
ified case  is  used,  the  two 
cutouts  in  the  corners  of  the 
board  are  necessary  to 
mount  flush  with  the  pillars 
inside  the  case. 

It  is  essential  that  the 
nnounting  holes  for  SW1  and 
SW2  are  accurately  posi- 
tioned on  the  front  panel. 
One  way  of  ensuring  a  good 
fit  is  to  use  the  board  as  a 


5W2 


'    ikr^i'<k<k<kik(k<k>^ 


OuJMt 


ALL 
41tM 


Fig.  2.  Complete  circuit  of  the  tester. 


template.  It  is  probably  best 
to  Initially  drill  small  guide 
holes  of  about  1  mm  in  di- 
ameter 

Construction  of  the  PCB 
is  quite  easy,  but  note  that 
IC2  has  an  MOS  input  stage. 
Although  lO  is  a  CMOS  de- 
vice, it  does  not  require  any 
special  handling  precau- 
tions. The  tags  of  SW1  and 
SW2  should  be  pushed  right 
down  into  the  board  before 
these  components  are  sol- 
dered into  place. 

The  test  sockets  are  two 


Fig.  3.  PC  board,  foil  side. 


groups  of  three  1mm  sock- 
ets, and  provided  each  set  of 
three  is  tightly  grouped,  it 
will  be  possible  to  fit  most 
transistors  directly  into 
these  without  difficulty.  A 
set  of  test  leads  can  be  used 
to  make  connections  to 
transistors  that  will  not  plug 
into  the  sockets.  The  tags  of 
the  sockets  should  be  bent 


at  right  angles  so  that  they 
do  not  come  into  contact 
with  the  PCB  when  it  is  fitted 
into  the  case. 

Operation 

In  use,  the  mode  switch  is 
set  for  NPN  or  PNP,  and  the 
test  device  is  connected  to 
the  correct  sockets.  If  the 
device  is  functioning  prop- 


Photo  A.  The  transistor  tester. 


Photo  B.  inside  the  transistor  tester. 

73  Magazine  •  June,  1964    35 


D5     D4     05    Oe     07     DB     09    010    Oil     DIE 

t  M  t  t  t  t  t  +  t 


9    *    V 

ei-VE        C     6     £ 


Fig.  4.  PC  board,  component  side. 


eriy,  the  LED  display  should 
flash  on  and  off  with  a  suit- 
able number  of  LEDs  being 
switched  on.  It  is  a  good 
idea  to  test  a  number  of 
transistors  of  various  types, 
which  are  known  to  be  fully 
operational,  so  that  you 
know  the  approximate  num- 
ber of  LEDs  that  should  be 
activated  when  testing  a  sus- 
pect device. 


If  the  LED  display  lights 
continuously,  this  indicates 
that  the  device  under  test  is 
closed  circuit  but  check  to 
be  sure  that  SW1  is  in  the 
right  position  and  that  the 
device  is  connected  correct- 
ly. If  not  alt  of  the  LEDs 
switch  off,  this  indicates 
that  the  test  device  is  faulty 
and  has  a  high  leakage  level, 
but  again,  check  that  It  is 


connected     correctly     and 

that  SW1  is  in  the  right  posi- 
tion. Also,  do  not  hold  the 
transistor  in  the  test  sockets 
touching  the  base  and  col- 
lector  leads.  This  could  sup- 
ply a  small  current  into  the 
base  of  the  component  giv- 
ing a  high  enough  collector 
current  to  activate  one  or 
two  LEDs.  If  the  display  fails 
to   light  at  all,   it  indicates 


Parts  List 

Resistors 

V<  W,  5%  unless  stated  othefwis© 


R1 

22k 

R2 

6.8  megs 

R3 

27k 

R4,  5, 16 

2,7k 

R6.7,10, 13 

100k  (1%) 

Ra,15 

100R 

R9, 14 

180R 

R11,12 

10k  (1%) 

R17-26 

470R 

Oapacltofs 

CI 

10uF,25V 

C2 

100  nF  mylar™ 

Semiconductors 

IC1 

ICM7555 

IG2 

CA3140E 

IC3 

LM3915N 

D1,2 

BZYS8C5V6 

LEDl-10 

(3mm  red  LEDs) 

Miscellaneous 

SW1 , 2  SPOT  min  toggle  switch 
B1  B-volt  battery 

SKI,  2  1mm  wander 

Sockets  (S66  text),  plastic  case 
(120  X  65  X  40mm),  battery  con- 
nector, PCB,  pinSp  wire,  etc. 


that  the  transistor  under  test 
has  gone  open  circuit ■ 


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Sounds  Good  to  Me 

Two  Texans  put  together  '73  Morse  R/T/'  It's  the  best 
Basic  VIC-20/C-64  code  program  you  will  ever  see. 


Three  things  plague  Morse 
code  transmit/receive  pno- 
grams.  First  the  good  ones 
are  expensive.  Second,  the 
inexpensive  ones  don't  gen- 
erate good-sounding  Morse, 
Finally,  most  Morse  pro- 
grams you  enter  yourseif  are 
in  Basic  and  are  too  slow  to 
generate  or  copy  well- 
spaced  Morse. 

So  what  have  we  here? 
True,  it's  Basic  that  you 
must  enter  yourself,  but  be- 
fore you  dismiss  it  as  just  an- 
other Morse  program,  corv 
sider  that  "73  Morse  R/T" 
has  been  carefully  assem- 
bled to  make  maximum  use 
of  Commodore  Basic. 

Because  variabfes  im- 
prove program  speeds,  the 
program  sections  using  nurn* 
bers  have  been  created  to 
use  the  faster  variable  meth- 
od. Morse  s pacings  have 
been  carefully  guarded,  and 
this  program  generates  the 
best-sounding  code  possible 
in  Basic  at  speeds  from  5  to 
50  wpm. 


73  Morse  Receive/Trans- 
mit  allows  type-ahead  buffer- 
ing of  up  to  255  characters 
and  three  (or  more)  255<har' 
acter  message  buffers  into 
which  may  be  placed  a  CQ, 
station  brag  tape  (rig  mes- 
sage), and  QTH  information. 

Additionally,  a  simple  in- 
terface schematic  is  includ- 
ed in  this  article.  With  it, 
your  Commodore  VIC-20  or 
-64  can  be  connected  to 
your  radio  and  be  used  with 
73  Morse  R/T  on  the  air. 

Two  items  of  caution  be- 
fore describing  this  program 
in  detail.  First,  if  you  make 
program  modifications,  add 
no  line  number  preceding 
line  200,  Any  line  appearing 
prior  to  200  must  be  pro- 
cessed between  each  char- 
acter sent  by  the  program 
and  even  a  Remark  state- 
ment will  deteriorate  the 
sound. 

Second,  we  suggest  you 
avoid  attempting  to  enter 
the  Receive  mode  of  this 
program  until  you  have  con- 


ifsefr  //9  Ptmr 


structed  the  interface.  If  you 
engage  the  Receive  option 
without  an  interface  at- 
tached, 73  Morse  R/T  will 
lock  and  you  will  be  unable 
to  return  to  Transmit.  Until 
you  have  constructed  the  in- 
terface (or  attached  a  suit- 
able one),  place  a  Remade 
[REM:)  at  the  beginning  of 
program  line  255  to  prevent 
the  lockup.  Remember  to  re- 
move it  when  you  connect 
an  interface. 

73  Morse  Receive/Trans- 
mit supports  the  following 
amateur  CW  prosigns: 


osign 

Key 

AR 

) 

KN 

^ 

SK 

— 

AS 

@ 

BK 

* 

BT 

— 

In  addition,  Morse  error 
(eight  dits)  is  sent  when  Re- 
turn is  depressed  or  an  unde- 
fined   key    is    struck.    The 


Run/Stop  key  is  an  excep- 
tion and  acts  as  a  Break  key; 
if  accidentally  depressed, 
type  'CONTtinuer- 

This  program  features  a 
255-character  keyboard  buff- 
er. If  the  255-character  limit 
is  exceeded,  excess  entries 
will  result  in  the  ''string  too 
long"  error  message.  Should 
this  occur,  enter  "CONT"  to 
resume. 

The  Delete  key  may  be 
used  in  the  normal  manner 
to  make  changes  and  cor- 
rections, providing  the  char* 
acter  to  be  corrected  has 
not  been  or  is  not  being 
transmitted  at  the  time  of 
the  attempted  correction. 

A  transmission  may  be 
aborted  by  using  the  Clear/ 
Home  key,  but  can  be  called 
only  from  the  Transmit 
mode.  Exercising  this  func- 
tion resutts  in  a  clear  screen 
and  loss  of  the  buffer  con- 
tents* 

Six  255-character  buffers 


ULL   RtSISTgnt'  1/4  WATT 


t/sff^  i^v  fo/rr 


WnOM 


ftl 


Fig.  1.  73  Morse  transmit  schematic, 

38     73  MBgmzine  «  Jur^e,  19&4 


Fig.  2.  73  Morse  receive  schematic. 


are  included  with  1?^  Morse 
R/T,  All  are  accessed  from 
the  Function  Keys  on  the 
right  side  of  the  VIG20  or 

-64.  E artier,  only  three  were 
mentioned.  The  reason  for 
this  is  that  to  be  useful,  one 
buffer  must  hold  the  station 
caltsign  input  another  the 
callsign  of  your  station,  and 
the  third  an  HW  CPY  (ink. 

Although  more  than  sug- 
gested data  could  reside  in 
the  preceding  three  buffers, 
their  function  limits  the 
length  of  the  contents.  Feel 
free  to  change  the  contents 
of  any  buffer  (Function  Key) 
as  you  wish.  Details  of  how 
this  may  be  accomplished 
can  be  understood  from 
reading  the  following  docu- 
mentation sections, 

FT  will  send  the  message 
contained  in  program  line 
310,  which  in  this  case  is  CQ. 
Any  message  up  to  255  char- 
acters in  length  may  be 
placed  in  this  buffer  You 
are  limited  in  line  length, 
however,  to  the  default  lim- 
its of  your  computer  (88  on 
the  VIG20.  80  on  a  -64),  If 
your  message  exceeds  these 
lengths,  it  is  suggested  that 
you  add  a  second  line  num- 
ber (in  sequence)  to  com- 
plete your  message,  as  illus- 
trated in  the  link  example  in 
program  lines  360  and  361. 
Notice  that  GOTO  45  ap- 
pears at  the  end  of  the  last 
line  of  buffer  text  only  and 
that  line  contents  must  be 
linked  as  "KS  =  K$  +  "  on 
additional  lines. 

F2  allows  you  to  enter  the 
callsign  and  name  of  the  sta- 
tion with  whom  you  are  en- 
gaged. These  entries  may  be 
left  blank,  or  to  change  the 
data  you  may  recall  the  op- 
tion and  enter  a  single  quote 
{")  when  the  information  is 
requested.  Once  a  name  or 
callsign  has  been  entered, 
entering  a  null  will  preserve 
whatever  data  resides  in  the 
memory  for  those  catego- 
ries. 

F3  will  send  "(his  callsign) 
DE  (your  callsign)"'  if  a  call- 
sign  for  the  station  being 
worked  has  been  entered. 
Your  call  must  also  appear 
in  program  line  330. 


F4  sends  the  QTH  or  other 
message  contained  in  pro- 
gram line  340- 

F5  will  transmit  "SO  HW 
CPY  (name)?  (his  callsign)  DE 
(your  callsignr  followed  by 
the  invitation  to  transmit 
"(K)''.  This  function  demon- 
strates  how  two  for  more) 
Function  Keys  can  be  linked 
(concatenated).  In  this  ex- 
ample, F3  is  called  by  F5. 

F6  sends  the  station  brag 
tape  (rig  message)  or  the 
contents  of  program  lines 
360  and  361.  These  linked 
lines  are  explained  in  F1 
above,    When    linking    pro- 


gram lines  to  allow  more 
than  the  standard  line 
lengths,  caution  should  be 
exercised  on  the  unex- 
panded  VIC-20,  as  memory 
limits  can  be  approached 
quickly  and  result  in  erratic 
code  spacing.  Should  this 
happen,  abbreviate  your 
messages  or  add  memory 
expansion. 

F7  toggles  between  Com- 
pose and  Send  modes. 
When  Compose  is  chosen  by 
a  single  depression  of  the  F7 
key,  73  Morse  R/T  will  allow 
building  your  transmission 
in  advance  of  being  sent  It 


will  not  function  during  Re- 
ceive. Function  keys  may  be 
embedded  during  Compose, 
but  remember  that  the 
lengths  of  messages  linked 
in  this  manner  will  affect  the 
maximum  count  of  255 
characters.  It  is  easy  to  ex- 
ceed maximum  buffer 
lengths  unexpectedly  in  this 
way.  Should  an  error  devel- 
op due  to  this,  type  GOTO 
50  and  your  transmission 
will  continue  with  the  of- 
fending characters  re- 
moved. Depressing  F7  a  sec- 
ond time  will  send  your 
Composed  text. 


10  50TQ200 

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Program  listing. 


73  Magazine  *  June,  1984    39 


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READY. 


C-64  modifications  to  73  Morse  R/T  listing. 


F8  sends  'DE  (your  call)". 
Useful  for  IDs  and  QSK. 

Note  in  line  340  [and  oth- 
ers) the  buffer  (BJ)  is  added 
to  the  message,  preventing 
the  contents  of  the  buffer 
from  being  lost  This  enables 
the  messages  to  be  used 
within  text  in  either  the 
Direct  or  Compose  modes. 
In  the  Compose  mode  only, 
a  reversed  number  represen- 
tative of  the  inserted  Func- 
tion Key  will  appear  within 
text  Although  not  repre- 
sented in  Send,  the  Function 
Key  will  be  transmitted. 

Receive 

With  a  suitable  interface 
connected,  Receive  may  be 
entered  by  depressing  the 
back-arrow  (escape)  key.  A 
second  push  of  the  same 
key  returns  to  the  Transmit 
mode,  and  in  this  way  the 
key  toggles  between  modes. 
The  back-arrow  key  may  al- 
so be  implanted  in  text 
When  encountered,  the 
modes  will  change. 

The  simplicity  of  the  re- 
ceive circuitry  on  the  ac- 
companying schematic  is 
roughly  representative  of 
the  function  refinements. 
Although  accurate  and  flexi- 
ble, these  restrictions  sug- 
gest several  actions  to  en- 
sure optimum  results, 

The  variable  resistor  is 
used  to  adjust  the  loop  fre- 
quency. Loop  adjustment 
should  coincide  with  the 
center  frequency  of  the  CW 
filtering  engaged  For  exam- 
ple, a  75O-H2  (typical)  filter 
would  require  your  inter- 
face loop  be  adjusted  to  750 
Hz— the  idea  being  to  ad- 
just the    LED   to   brilliance 

40    73  Magazine  •  June,  1994 


with  futi  filtering  engaged. 

As  a  digital  device,  the 
VIC  requires  spaces  of  si- 
lence between  Morse  char- 
acters for  recognition. 
Therefore,  rf  gain  should  be 
adjusted  to  permit  the  LED 
to  extinguish  between  key- 
ing. In  other  words,  tune  in 
the  desired  signal  and  re- 
duce rf  gain  to  a  point  where 
QRM  does  not  keep  the  LED 
from  blinking  A  threshold 
adjustment  (squelch]  would 
be  helpful  here,  but  is  not 
within  the  scope  of  this  arti- 
cle. 

Any  suitable  interface 
can  be  driven  with  73  Morse 
Receive/Transmit  The  pre- 
requisite is  that  the  interface 
in  use  is  TTL-compatible  and 
goes  low  on  keying  applied 
to  the  externa]  DEMOD  in- 
put on  the  interface  in- 
cluded here. 

Although  there  is  an  up- 
per limit  to  receive  copy 
speed,  we  have  successfully 
decoded  30-word-per-m  in- 
ute  CW  generated  by 
HAMTEXT  and  MBATEXT 
with  this  program  — admir- 
able for  Basic.  We  feet 
VlC-20  and  C-64  Basic  has 
been  optimized  at  this 
point  Morse  transmission  at 
speeds  in  excess  of  65  wpm 
is  possible  and  has  been  de- 
coded by  the  previously 
mentioned  commercial  pro- 
grams. At  speeds  approach- 
ing SO  wpm.  73  Morse  R/T  is 
detected  with  excess  spaces 
but  remains  readable. 

It  is  important  to  mention 
that  no  CW  decoder  will 
copy  poorly  sent  CW.  If,  for 
instance,  the  transmitting 
station  sends  a  question 
mark  as  "IZ",  then  "IZ"  will 


be  displayed. 

In  view  of  this  restriction 
to  accuracy  inherent  in  all 
time-based   microprocessois, 

we  recommend  you  remain 
faithful  to  your  own  receiv- 
ing speeds  and  not  dive  into 
a  speedy  QSO  you  can't 
keep  up  with  should  your 
VIC  crash,  If  you  parallel  a 
key  alongside  the  computer, 
you  can  always  request  QRS 
if  your  program  or  VIC 
crashes  in  mid-QSO  and  you 
find  yourself  adrift  without 
oars. 

Circuit  Notes 

The  transmit  section  of  73 
Morse  Receive/Transmit  uti- 
lizes the  CB2  [RS-232  Sout) 
signal  at  the  User  I/O  port  on 
the  VIC-20  and  ^.  CB2  will 
go  low  when  the  transmitter 
is  to  be  keyed.  This  further 
enables  the  Run/Stop/Re- 
store sequence  to  interrupt 
keying  at  any  time  and  pre- 
vents the  computer  from 
keying  the  transmitter  on 
power-yp  initialization  or 
Reset 

For  Receive,  this  program 

makes  use  of  the  PBO  signal 
at  pin  C  and  the  CB1  signal 
(RS-232  Sin)  at  pin  B  PBO 
must  go  high  when  a  re- 
ceived signal  is  detected, 
Although  CBl  is  not  used,  it 
is  connected  in  anticipation 
of  the  later  addition  of 
RTTY  and  ASCII  upgrades. 

The  567  tonecJecoder  IC 
is  available  at  most  parts 
stores  and  is  common. 

A  12/24  .156  spacing  con- 
nector is  required  for  this  in- 
terface. Lacking  one,  a  22/44 
pin  connector  (common) 
can  be  cut  to  fit  The  inter- 


face may  be  constructed  on 
a  piece  of  perforated  board 
and  the  underside  of  the 
connector  attached  to  the 
board  with  strong  (twchpart) 
epoxy.  Refer  to  the  manual 
furnished  with  your  comput- 
er for  pinouts. 

Do  not  attempt  to  key  a 
rig  which  presents  more 
than  +  30  V  or  any  negative 
voltage  at  the  key  terminals 
with  the  direct  keying  por- 
tion of  this  circuit  for  dam- 
age to  your  computer  will 
likely  result  Provision  for 
total  isolation  of  the  type 
necessary  to  permit  safely 
keying  such  transmitters  can 
be  made  through  a  common 
reed  relay  using  the  alter- 
nate keying  section  of  the 
schematic. 

A  ckno  wiedge  ments 

The  authors  of  this  pro- 
gram would  like  to  acknowl- 
edge conceptual  assistance 
from  Jim  Thomas  W90AG, 
whose  application  of  the 
567  tone-decoder  circuit  ap- 
peared on  an  interface  card 
for  CW  split*screen  on  the 
ZX-81  and  was  used  by  per- 
mission. Additional  thanks 
to  Cliff  Nunnery^  NU4V  from 
whom  the  ZX-61  program 
and  interface  are  available. 
Automatic  receive-timing  ad- 
justments used  in  this  pro- 
gram were  based  on  the 
equations  of  J.  C  Sprott 
W9AV,  who  created  them 
for  the  TRS-80  computer. 

Notes 

If  in  testing  this  program 
you  notice  scrambled  CW, 
look  for  an  added  or  missing 
comma  in  the  Data  state- 
ments of  lines  500  through 
540. 

Users  of  the  Commodore- 
64  should  replace  any  ex- 
isting program  lines  in  the 
VIC  version  with  those  ap- 
pearing in  the  64  modifica- 
tion listing,  adding  those  not 
shown  in  the  VtC  listing. 

This  program  previously 
appeared  as  J/20  Morse  R/T 
in  the  bi-weekly  fournal/20 
and  has  been  in  use  for  over 
a  year.  It  is  in  the  public  do- 
main.! 


F 


The  Evolution  of  a  Superior 
Terminal  for  RTTY  and  CW 


'^"' 


C64 


Am-1  Past 

As  an  B  &  D  project,  the  AIK-l  went  smooth  as 
silk.  By  using  our  proven  TU  designs  and  software 
that  s  been  refined  on  units  such  as  the  ultimate 
ATR-68OO5  we  obtained  a  level  of  performance 
only  found  in  much  more  expensive  dedicated 
sj^stems.  Compare  it  for  yourself  or  ask  an  AIR-1 
owner.  They  work  greati 

AIR-1  Present 

Along  with  great  performance,  the  AIR-1  boasts 
an  impr^sive  list  of  features,  some  of  which  are 
exclusive  to  Micro  log, 

•  Computer  enhanced  detection  means  extensive 
use  of  software  digital  filtering  techniques  for 
noise  and  bandwidth  that  track  the  operating 
speed  and  code. 

•  Full  speed  RTTY  60  to  132  WPM,  CW  to  150 
WPM,  &  110/300  Baud  ASCII- 

•  Choice  of  full  or  split-screen  display  with  large 
I      type  ahead  text  buffer  and  programmable 

memories. 

•  On  screen  tuning  indicators  mean  you  never 
have  to  take  your  eyes  off  the  video  for  perfect 
copy  tuning.  RTTY  "scope"  cross  hatch  and 
**red'dot"  signal  acquisition  monitor  right  on 
the  screen. 

•  Ke^'word  or  manual  control  of  VIC  or  Parallel 
printer  and  receive  buffer  storage. 

•  Convenient  plug4n  jacks  for  all  connections. 

•  Single  board  design  contains  TU  &  ROM  soft- 
ware that  does  not  require  external  power. 

•  FuU  one  year  warranty. 

•  WHU,  UNshift  On  Space,  Word  wrap-around, 
Test  "Quick  Brown  Fox"  &  "RYRF"  in  ROM. 

:  Break  buffer.  Random  Code  generator.  Hand- 
key  input.  Real-time  clock,  sturdy  metal  cover 
and  more. 

MICROLOG  .„ 

INNOVATORS  IN  DlGiTAL  CO/iAMUNiCATlON 


The  optional  on-board  4  mode  AMTOR  in- 
cludes tliese  exciting  extras: 

•  AHQ  mode  A  (chirp),  Time  Diversity  mode  B 
(Selective  &  Collective  Broadcast)>  and  Listen 
(eavesdrop)  for  mode  A. 

•  Word  processor  mode  for  full  editing  of 
transmit  and  receive  text. 

•  The  unprecedented  ability  to  transmit  BASIC 
programs  over  the  air  directly  from  memorylll 
Just  load  your  program  normally  by  hand,  disc 
or  tape,  jump  to  AIR- 1  to  establish  communica- 
tions, and  t>pe  a  special  control  command.  The 
AIR-1  does  the  rest.  All  standard  Commodore 
Basic  and  screen  control  commands  are  trans- 
mitted/received intact,  just  as  you  typed  them, 
for  immediate  RUN/SAVE,  Share  BASIC  pro- 
grams with  your  friends  around  the  world 
without  tedious  "two-step"  re-tjping  or  mailing 
fragile  discs  and  tapes. 

AIR-1  Future 

There*s  room  for  expansion  and  adaptability 
with  some  really  "neat  stuff  planned  for  the 
AIR-L  But  then,  why  tip  off  the  competition? 
Now  you  understand  how  we  live  up  to  the  tide 
"Innovators  in  Digital  Communications/'  The 
complete  AIR- 1  for  VIC-20  or  C-64  is  $199  (with 
AMTOR,  $279) .  See  it  at  your  local  dealer  or  call 
Microlog  Corporation,  18713  Mooney  Drive, 
Gaithersburg,  Maryland  20879.  TELEPHONE 
(301)  258-8400,  TELEX  908153, 


Commodore  uix]  VIC  30  mrv  rEgLstcml  tTafSermark^  of  Cotnfnodcire  Electronics^  Ltd, 
Cop>Tighl  ;:'lt>S3  MICROLOG  CORPORATION 


n 


Peter  H.  Putman  KT2B 
54  Burnham  Road 
Morris  Phins  N/  07950 


Piggy-Bank  Repeater  Project 

Set  it  and  forget  it. 
This  inflexible  controller  doesn't  bend  the  budget 


(know  what  youVe  think- 
ing. The  last  thing  this 
world  needs  is  another  re- 
peater control,  right?  (Some 
would  say  the  last  thing  we 
need  is  another  repeater, 
period,  but  that's  another 
matter  altogether.) 

The  past  few  years  have 
seen  a  prDltferation  of  mi- 
croprocessor-based repeater 
controls  offered  for  sale  in 
73,  HR,  QST,  and  other 
magazines.  While  it's  cer- 
tainly tnje  that  these  units 
do  offer  an  amazing  array  of 
functions,  bells,  whistles, 
and  the  like,  it  can  be  said 
that  such  systems  may  be 


far  more  than  the  average 
repeater  operator  needs  for 
simplicity  and  reliability. 

The  circuit  described  here 
won't  win  any  engineering 
awards  but  won't  break  your 
bank,  either.  Whafs  more, 
all  of  the  parts  can  be  ob- 
tained easily.  The  emphasis 
is  on  "set-and-forgef  opera- 
tion, so  there  are  a  minimum 
number  of  functions  to  fuss 
with  when  performing  the  fi- 
nal  installation.  Best  of  all, 
this  circuit  lends  itself  well 
to  modular  designs,  such  as 
plug-in  cards.  In  this  particu- 
lar case,  this  meant  the  end 
of    the    wonderful    January 


Photo  A.  Completed  bo^rd  minus  the  LEDs. 
42    73  Magazine  •  June,  19&4 


trips  to  the  repeater  site  to 
troubleshoot  in  minus  TO"^ 
weather 

The  Split  Rock  ARA  re 
peater  in  Rock  away.  New 
Jersey,  had  used  for  many 
years  a  circuit  based  on  fiRt- 
generation  TTL  devices. 
When  it  was  first  built  in 
1972,  it  was  a  pretty  impres- 
sive piece  of  equipment! 
This  controller  featured  a 
1.5-second  delayed  key-up, 
a  diode-matrix  ID  generator, 
a  "polite"  identifier,  and 
used  only  22  ICs,  30  diodes, 
3  relays,  and  numerous  tran- 
sistors to  do  the  lob.  It  was 
constructed  on  plug-in  wire- 
wrap  boards  (presumably  to 
allow  for  some  experimenta- 
tion) and  then  the  wire^wrap 
was  soldered.  With  atten- 
dant power  supply,  it  took 
up  about  12''  by  4"  by 
6"— not  a  small  package. 

Well,  time  marched  on. 
Pretty  soon,  chips  began  to 
fail  about  the  time  that  vari- 
ous pieces  of  circuit  docu- 
mentation were  mysterious- 
ly vanishing-  The  identifier 
began  cutting  itself  off  in 
micUD,  giving  us  one  of  the 
world's  shortest  calls,  "DE 
W— ".  Worst  of  all,  the  de- 
layed key-up  began  reset- 
ting on  every  call,  resulting 
in  more  "doubles"  and  "tri- 
ples" than  the  World  Series! 

What  to  do?  The  repeater 


users  were  ready  to  march 
on  Washington,  Everyone 
grumbled  about  the  situa- 
tion. The  most  popular  ques- 
tion at  our  monthly  meet- 
ings (after  "when  do  we 
adjourn?")  became^  "Hey, 
when  are  you  gonna  fix  the 
ID  box??  Hunnhh?" 

With  visions  of  a  lynch 
mob  firmly  in  mind,  the  de- 
cision was  made  to  deep-six 
the  old  control  package  in 
nearby  White  Meadow  Lake 
and  redesign  a  brand-spank- 
ing-new controller.  Thus 
would  our  repeater  move  in- 
to the  80s! 

I  had  experimented  with 
many  Rube  Goldberg  de- 
vices over  the  years  for  re- 
peater control,  being  first  at- 
tracted to  a  design  using  555 
timers.  No  good!  The  555  is 
surely  the  most  versatile  IC 
ever  to  grace  this  earth,  but 
it  suffers  from  a  problem 
common  to  most  one-shots: 
poor  noise  immunity,  My 
first  attempt  at  a  circuit  of 
this  type  worked  great  on 
the  bench,  but  soon  wound 
up  in  the  garbage,  as  those 
poor  555s  keyed  up  on  every 
spike  within  a  mile  of  our 
site.  Sure  looked  good  on 
paper,  though . . . 

A  circuit  using  flip-flops 
and  unijunction  transistors 
soon  made  an  appearance 
in  the  March,  1979,  QSV 


and  it  looked  promising.  The 
user  "set"  the  flip-flop  upon 
key-up,  and  the  UJTs  "reset" 
the  flip-flop  using  the  classic 
RC  circuit  to  detemnine 
squelch*taif  time.  Again,  not 
a  bad  idea  on  paper.  Howev* 
er,  in  the  repeater,  it  was 
soon  discovered  that  the 
user  got  erratic  squelch  tails, 
if  any  tail  was  generated  at 
all! 

Using  tantalum  capaci- 
tors and  precision  resistors 
didn't  cure  the  problem,  RFI 
and  timing  problems  put 
this  model  in  the  circular 
file.  Back  to  the  drawing 
board!  Although  the  circuit 
was  a  clever  design,  the  fact 
that  the  capacitor  did  not  al- 
ways charge  completely  on 
each  transmission  {especial- 
ly  during  a  series  of  rapid 
QSOs)  led  me  away  from  us- 
ing any  RC-type  delay  cir- 
cuits for  future  designs. 

The  problem  was  just  too 
many  variables,  such  as  the 
quality  of  electrolytics  used, 
type  of  UJT  used,  grade  of 
other  transistors,  and  ques- 
tionable resfxjnse  in  ex- 
treme environments.  How- 
ever, the  basic  concept  was 
halfway  there— using  flip- 
flop  logic  and  toggling  be- 
tween set  and  reset  modes. 
Ah-ha!  Now  I  was  getting 
somewhere,  and  after  study- 
ing schematics  for  the 
10,000th  time,  it  occurred  to 
me  that  a  better  way  would 
be  to  use  clock  pulses  to  do 
the  job.  This  meant  an  on- 
board clock  and  appropri- 
ate divide-by-X  chips.  And  so 
was  bom  the  final  circuit  (al- 
though more  out  of  despera- 
tion than  inspiration  l). 

Refer  to  Fig.  1  for  the 
schematic.  Ql  and  Q2  serve 
to  isolate  any  COR  lines 
from  the  CMOS  logic,  as 
welt  as  provide  high  enough 
signal  levels  for  reliable  key- 
ing action.  Either  positive-  or 
negative-type  COR  lines  can 
be  used,  swinging  typically 
from  .5  to  8  volts,  or  vice- 
versa.  U1,  a  CD4047  free- 
running  multivibrator  serves 
as  the  on-board  clock.  It  is 
set  to  about  120  Hz  at  pin 
10.  The  output  from  U1 
drives  U2,  a  CD4O40  ripple 


counter.  These  two  chips 
make  up  the  heart  of  the 
timing  circuit  and  are  never 
disabled  while  the  circuit 
has  power  to  it  The  clock 
pulses  from  U2  ane  fed  to 
three  orvboard  divideby-sev- 
en  chips,  U3,  U4,  and  U6, 
which  are  all  CD4024  types 
and  which  generate  the  de- 
layed key-up,  squelch  tails, 
and  timeout  intervals,  re- 
spectively. 

U4  serves  an  additional 
function:  It  resets  the  delay 
line  after  1 0  to  1 2  seconds  of 
inactivity.  Or,  if  you  prefer, 
it  can  be  disabled.  When  the 
user  opens  the  squelch  on 
the  repeater  receiver,  the  en- 
suing COR  voltage  change 
(either  high-low  or  fow-high) 
will  cause  Ql  to  go  low, 
which  in  tum  also  sets  pin  2 
of  U3  low.  This  COR  signal  is 
also  sent  to  pin  1 2  of  USA,  a 
CD4001  quad  2-input  NOR 
gate.  U3  is  now  counting 
clock  pulses,  and  after  13 
seconds,  pin  11  of  U3  goes 
high,  setting  U7A,  a  CD401 3 
dual-D  flip^lop.  Pin  2  of 
U7A,  the  Q  output  goes 
low.  This  signal  is  sent  to  the 
other  input  of  USA,  pin  13. 
Now  we're  ready  for  action- 


Photo  B,  Controller  built  on  plug-in  card 


USA  at  this  point  goes 
high  through  pioll.  This  line 
sets  U7B  through  pin  8, 
causing  pin  12  of  U7B  to  go 
low.  This  logic  is  sent  to  pin 
6  on  use  Pin  5  is  normally 
set  low  (we'll  get  back  to  it 
in  a  moment),  with  the  result 
that  the  output  of  U5C,  pin 
4,  goes  high  and  keys  the 
transmitter  through  relay 
driver  Q5,  When  the  input 
signal  is  released,  pin  2  of 


4 


■^h 


I  r'' 


Ri- 


ll— ♦ 


+y, 


cc 


Ul 


to 


10 


\i2 


aXi* 


^M 


li 


:fOK 


lOlC 


ton 


T    47K 


rO" 


vl 


ifl  f 


U&A 


■I 


2 


'^-* 


Ui 


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Q4 


VfM. 


L>se 


10 


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r 


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to 


uf, 


11 


tz 


USA 


to 


UiO 


10K 


04 


ZK 


LED  2 


Fig.  1.  Schematic. 


U4  IS  set  low  via  NOR  gate 
USB  and  after  2.5-3  sec- 
onds, pin  11  goes  high,  reset- 
ting U7B  through  pin  10. 
This  is  the  squelch-tail  cir- 
cuit If  no  further  activity  is 
detected  after  10-12  sec- 
onds, pin  5  of  U4  goes  high 
and  resets  U7A  through  pin 
10-  The  delay  line  is  back  on 
and  ready  for  the  next 
user(s). 

This  may  seem  like  a  fair 
amount  of  work  just  to  ker- 
chunk the  old  machine,  but 
you'll  always  get  a  consis- 
tent squelch  tail,  each  time 
and  every  time.  You  turn  on 


*VtC 


Luae 


«fZvDC 


• — •  Lite 


lOK 


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* ^EXTflA 

OPEN 
—^  COLLECTOft 

[FOR  ^nd  KEV  LINE) 


10  K 


73  Magazme  •  June.  1984    43 


the  various  flip-flops  and  the 
oivboard  clock,  and  count- 
ers turn  them  off,  keying  the 
transmitter  and  dropping  it 


in  the  process.  No  noise 
spikes  to  fool  one-shots,  no 
variable-length  tails,  time- 
outs, or  delays.  Sound  good? 


Read  on  I  Now  you'll  find 
out  why  I  sent  you  through 
all  those  gates  and  flip-flops. 
Refer  to  pin  5  of  U5Q  the 


Fig.  2.  Printed  circuit  board 


LEO  2 


P#n 


Q|-Q4,Q6 
(BOTTOM  VIEW) 


Q 

E  B  C 


Fig.  3.  Component  layout 


kev*line  driver.  By  using  a 
NOR  gate  here,  we've  incor- 
porated timeout  control, 
merely  by  driving  pin  5  high. 
Stops  'em  every  time!  This  is 
easily  done  by  using  two 
more  flip-flops  — USA  and  B. 

Let's  assume  someone 
has  brought  up  the  repeater 
and  is  chewing  everyone's 
ear  off  describing  the  new 
Ultra-5000  computerized  rig. 
Remember  the  COR  set  con- 
ditions; U3  is  enabled,  U4  is 
disabled,  and  U7A  and  B  are 
in  the  set  mode.  Refer  again 
to  the  schematic  and  you'll 
spot  U6,  another  divide-by- 
seven  counter.  When  pin  11 
of  USA  goes  high,  it  sets  pin 
2  of  U6  low,  enabling  the 
counter,  U6  derives  its  clock 
pulses  from  pin  4  of  U2  for 
detemiining  the  timeout  in- 
terval. The  Split  Rock  re- 
peater always  had  about  a 
90-second  timer,  so  this  pro- 
gram was  retained. 

As  long  as  pin  2  of  U6  is 
held  low,  which  it  is  whenev- 
er there  is  activity  on  the  re- 
ceiver, it  will  continue  to 
count  up  to  90  seconds,  at 
which  point  pin  3  of  U6  goes 
high  and  sets  USB  through 
pin  6.  Pin  1  of  U8B  then  goes 
high  and  is  sent  to— you 
guessed  it— pin  5  of  U5C. 
Pin  4  of  U5C  goes  low  and 
the  key  line  is  dropped,  shut- 
ting  off  the  repeater- 

When  our  hero  runs  out 
of  superlatives  on  his  new 
toy  and  drops  the  input  car- 
rier, several  things  happen. 
First  U3  and  U6  are  im- 
mediately reset  U4  is  now 
enabled  and  its  pin  11  goes 
high,  resetting  USA  and  set- 
ting pin  12  high.  Like  a  stack 
of  falling  dominoes,  this 
resets  U8B,  which  then 
resets  pin  5  of  U5C  low,  and 
we're  back  on  the  air.  You'll 
get  the  customary  squelch 
tail,  and  thaf s  it!  Everything 
is  ready  for  another  timeout 

The  timeout  timer  can  be 

reset  immediately  upon  the 
dropping  of  each  input  car- 
rier  by  using  pin  11  of  U4,  or, 
if  you  prefer  a  short  interval 
for  the  ''beep/'  pin  9.  This 
will  give  about  a  1-1.5-sec* 
ond  interval  for  reset  The 


4i    73  Magazine  •  June,  1984 


Ham  MasterTopes 


THE  N2NY  HAM  RADIO  COURSE  ON  VIDEOTAPE 


''^  1S83  N^NY  Proawclions  lr«c 


TMi 

^M  K^pi®  ©mm 


am  MasterTapes  brings  the  best 
3ssible  personalized  Ham  Radio 
:ense  preparation  right  into  your  own 
dng  room.  If  you,  a  friend  or  family 
ember  wants  the  best  help  available  to 
it  past  the  FCC  test  hurdle,  it*s 
/aibble  now  in  Beta  or  VHS  home 
dec  format. 

Larry  Home,  N2NY  brings  his  33 
jars  of  Ham  Radio  teaching  experience 
ght  to  your  home.  Each  of  the  26  video 
ssons  has  close-up  details  of  com* 
Dnents  and  systems  along  with  superb 
-aphic  drawings.  Each  lesson  has 
iportant  points  superimposed  over  the 
:tion  and  reviewed  at  the  end  of  each 
action.  This  makes  note-taking  a  snap! 
[iss  something?  Didn't  get  it  the  first 
Tie?  Just  back  up  the  tape  and  run  it 
gain  or  freeze-frame  it  for  detailed 
ose-up  study! 

Larry's  classroom  is  a  real  ham  shack, 
ee»  a  IS-year-old  boy,  and  Virginia  are 
d  through  the  learning  process.  The 
jestions  that  they  ask  are  the  ones 
arry  knows  you  would  ask  if  you  were 
lere  in  person.  You  soon  feel  like  youVe 
art  of  an  ideal  small  class. 
The  topics  covered  will  not  only  get 
ou  through  the  Novice  test—  General 
ass  theory  is  covered  also.  By  the  time 
Du  get  your  Novice  license,  you  will  be 
ble  to  upgrade  to  General  or 
echnician! 

Larry's  technique  of  involving  the 
ewer  with  the  demonstrations  makes 


the  most  difficult  topics  easy  to  un^ 
derstand.  Understanding — not  mere 
memorization— is  what  makes  Ham 
MasterTapes  so  effective.  When  you 
study  the  700  possible  FCC  questions, 
the  answers  will  be  obvious. 

Larry  doesn*t  stop  with  just  test- 
passing.  All  the  proper  techniques  of 
operating  practices  and  courtly  are 
demonstrated.  The  instruction  manual 
for  that  new  rig  won't  be  a  mystery!  Larry 
becomes  your  own  personal  instructor 
to  help  you  on  that  first  setup  and 
contactl 

The  Ham  MasterTapes  series  is 
produced  in  one  of  New  York  City's  top 
commercial  studios.  Not  only  is  the 
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professionals  but  many  of  them  are  also 
licensed  amateurs.  Everybody  puts  in 
obvious  extra  effort  to  make  the 
production  a  classic. 

The  6-hour  course  is  available  on  three 
2-hour  Beta  II  or  VHSSP  cartridges  for 
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must  order  our  Scholastic  licensed 
version,  $49955  for  Beta  or  VHS  and 
$750for3/rU-matic.) 

To  order^  call  or  write  Larry  Home, 
N2NY  at  Ham  MasterTapes,  136  East 
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212-685-7844  or  673-0680,  MasterCard 
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THE  N2NY  HAM  RADIO  COURSE  ON  VIDEOTAPE 


136  East  31st  Street 

New  York,   New  York   10016 
(212) 685-7844  •  673-0680 


Ml   Nli^**<F'«}uC1*rvt.  U^i_ 


SOME  OF  THE 
TOPICS 
COVERED   INCLUDE 


AMPLITUDE  MOWHATIOW 
OOCIBLE   SIDEBAND 
SINGLE   STDEBA^JD 
FREQUEWCY   MODUIATION 
PHASE    MODUUtTIQ^f 
SIDEBANDS 
BAlsrUWIDTM    LIMITS 
ENVElrOPE 
DEVI AT low 
CfVEEHODULATI  OH 

rRE&JE3iCt   TStAMSUttlOti 

AHTEICKAS   AHP  FCESiLIIIES 

TACl  ANTENNAS 

QfDAD  ANTENNAS 

POLARIZATION 

FEEDPQIWT  IMPEDANCE 

KAir-HAVE  DIPOLE 

QUARTER *W AVE  VERTICAL 

RADIATION  PATTERNS 

DIRECTIVITY 

JOUIOa  LOBES 

CHAfiACTEFlSTIC  IHTEDANCE 

STANDING  WAVES 

ATTENUATIOft 

AliraiiliA-rEEDINC   HJSMATCH 

STATION   ID 

CJkLL  SIGNS 

LOGGtNG    REOtflREKENT^ 

POWER   LTMITATIO^f 

CONTROL   OP   FEQUIHEMKNTS 

H-S-T    REPORTING    SYSTEM 

TELEGRAPHY   SPEED 

ZERO^BEATING   SIGNAL 

TRANSHITTER    TTINE-UP 

TlLEOaAPHT  ABiHEVlATlONS 

MADIO  HAVE  FRCPACATION 

SKY  KAVH  AKD  SKIP 

GBOUNtt  NAVE 

HABHDNIC  INTEEFIEENCE 

SWR  READINGS 

SIGNALS    AND    EHISSIOPtS 

BACKWAVE 

KEY  CLICKS -CHIRPS 

SUPERIMPOSED  HUH 

SPUHJOUS  EMISSIONS 

COMPUTERS 

OSCAR 

ATV-SSTV 

OPERATING  COCtrreSY 

RULES  AND  RECttATIONS 

OPEKATINC  PROCEDURES 

RADIO  WAVE  PROPAGATION 

AMATEUR  RADIO  PRACTICE 

ELECTHICAL  PRINCIPLES 

CIRCUIT  COMPONENTS 

PRACTICAL  CIRCUITS 

SIGNALS  AND  EHISSIDNS 

RAOIO  WAVE  PROPAGATION 

EMERGENCY  C0MJ1UN I  CATIONS 

tRAUSMITTIS  POWER  LUtTTS 

STATJOW^ID  REOUlHE?CKrrS 

IHIHD-PARrr  PARTICIPATION 

FREQCFENCY  BANDS 

SELECTION  OF  FREQUENCIES 

a,C.  MODELS 

PROHIBITED  PRACTICES 

RAUIOTELEPHONY 

RADIO  TELEPRINTING 

REPEATERS 

VOX  TRANSMITTER  CONTROL 

BR£AK-IN  TELEGRAPHY 
AKTEXKA  ORIENTATIOM 

INTESHATIONAL  COMHOMICATlQir 

D*EIKSBiCr-PREP  DRILLS 

IQNOSPHEJIIC  LAYERS  D-E-F 
HAXlHUM  USEABLE  FREOffENCY 

tONOSPHEBIC  DISTUREANCES 
SUKSPOTS 

3CATTEH*  DWCTING 
LINE~OF-SIGHT 
TROPOSPHERIC  BENDING 
SAFETY  PRKCALITIONS 
TRANSMITTER  PERFORMANCE 
TWO-TONE  TEST 
MEtlTRALlZING  AHFtlFlERS 

POiiEii  measut^eme:^ 

TEST   EOtJiPMEin" 

OSCILLOSCOPES 

NULTIHETEItS 

SIG^AL  GENERATORS 

SIGNAL  TRACERS 

AUDIO  RECTIFICATION 

REFLECTOMETERS  -  SWH 

SPEECH  PROCESSORS 

ANTEMNA-TUNINC  UNITS 

S-METERS 

MATTMETERS 

IMPEDANCE 

RESISTANCE 

REACTANCE 

INDUCTANCE 

CAPACITANCE 

IMPEDANCE   MATCHlliC 

OHM*S    LAW 

AMPS  AND  VOLTS  DIVIDERS 

POWER  CALCULATIONS 

SERIES  AND  PARALLEL 

FILTERS 


I 


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high-going  pulse  from  pin  9 
can  be  used  to  activate  a 
beeper  if  needed.  The  time- 
out progrann  can  be  changed 
to  the  legal  limit  of  1B0  sec- 
onds by  taking  clock  pulses 
from  pin  1 3  of  U2  and  send- 
ing them  to  pin  1  of  U6. 

Thats  all  there  is  to  it! 
The  addition  of  a  couple  of 


LEDs  to  indicate  DELAY  and 

COR  status  puts  you  in  busi- 
ness. Photo  A  shows  a  com- 
pleted board  minus  LEDs, 
while  Photo  B  shows  one 
version  built  on  a  WES- 
COMM  56-pin  plug-in  card 
which  SARA  uses  on  K2RF/ 
R.  Two  built-up  boards  are 
now    in    existence,    which 


means  anytime  there's  a  fail- 
ure, on-site  maintenance 
consists  of  pulling  the  bad 
board  and  plugging  in  a  new 
one.  The  defective  unit  can 
be  repaired  at  your  leisure  in 
a  nice  warm  place,  not  some 
icebox  on  a  hilltop.  Photo  C 
shows  the  difference  in  size 
between  the  old  controller 
and  the  new  version.  Fig.  2 
shows  the  circuit  board 
used,  and  Fig,  3  shows  the 
component  layout.  If  there 
is  sufficient  interest  high- 
quality  printed  circuit 
boards  will  be  made  avail- 
able. 

One  final  suggestion:  Use 
good  chips.  You're  trusting 
the  control  of  your  machine 
to  this  little  bugger,  and  sec- 
onds or  grab-bag  ICs  just 
won't  hack  it  A  good  source 
for  chips  would  be  Jameco 
Electronics.^  If  you  aren't 
sure  if  if  II  wodc  under  harsh 
conditions,  do  what  1  did: 
Place  the  board  in  a  plastic 
bag  and  toss  it  in  the  freezer 
for  about  two  hours,  then 
pull  it  out  plug  it  in,  and  get 
the  good  (or  bad)  news. 
Prime  chips  should  handle 
this  test  with  no  sweat 

There  is  no  place  to  at- 


tach the  relay  to  the  circuit 
board  since  every  relay  is 
different  So,  do  what  I've 
done  and  glue  your  relay 
right  to  the  board  on  its 
side— there's  plenty  of  room. 
Don't  forget  to  bypass  the 
coil  with  a  diode  or  you  may 
have  some  problems  with 
spikes. 

Its  not  a  whiz-bang  mi- 
cro-based control  with  3,000 
functions,  but  on  the  other 
hand,  you  ought  to  be  able 
to  build  one  of  these  for 
under  $25.00  with  all  new 
parts,  and  that's  a  worst- 
case  guess.  This  unit  is  ideal 
for  hard-to-get-at  locations 
or  for  remote  links.  You  can 
add  any  type  of  ID  circuit 
you  like;  just  use  the  output 
of  pin  1 1  of  USA  to  trigger  it 
through  an  appropriate  trarv 
sistor. 

Have  fun!  If  any  ques- 
tions arise  in  construction, 
send  along  the  usual  SASE 
and  HI  try  to  help.B 

Keferefioos 

1."A  CMOS  Control  Circuit  for 
Repeaters."  Donald  Dofson 
W1GBO,  QST,  March,  1979, 
Z  Jameco  Electronics,  1355 
Shoreway  Road,  Belmont  CA 
9400Z 


Photo  C  Size  comparison  of  the  old  and  hba^  controHer 
versions. 

72  Magazme  *  June,  1984 


Parts  List 

U1 

GD4047BE  mono/as  table 

multtvlbrator 

$.89 

U2 

GD4040BE  12-stag6  binary/rip- 

ple counter 

.79 

U3,  U4,  U6 

CD4024BE  7*stage  binary 

counter 

2.07 

U5 

CD4001BE  quad  2-input 

NOB  gate 

2Q 

U7,U8 

CD40t3BEduam  flip-flop 

,78 

Ql,  02,  03,  04 

2N3904  NPN  transistor 

too 

R1 

500k  linear  taper  control 

(63P-500k) 

1.10 

01 

Mylar™  .022-uF  100-V 

capacitor 

.13 

05 

2N3566/2N2219  NPN  transis- 

tor 

50 

R2,FG 

47k,  y^-Watt  cartxjn  resistors, 

5% 

,12 

R4-R13 

10k,V4'Wati  carbon  nesistors, 

5% 

.60 

R14,  R15 

l^k,  y<-Watt  carbon  resls- 

torSp  5% 

,12 

DtD2 

FM  LED,  #XC556R 

J9 

7  ST 

14-pin  solder-tail  tC  sockets 

2.03 

1ST 

1€^in  solder-tail  IC  sockets 

.34 

Total  Parts 

$11.45 

Note:  All  prices 

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ORBIT  is  the  Official  Journal  for  the 
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For  a  SAMPLE  COPY  please 

send  $2  to: 

(AIVISAT),  P.O.  Box  27,  Washington,  DC 

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^ 


t^Sfle  List  of  Advert! 90n  o ft  page  T  M 


73  Magazine  •  June,  1984    47 


I 


Fatty  Wintei  N6BfS 
PO  Box  537 

Menh  Park  CA  94025 


Not-So-Famous  Garriott  Words 


in  one  of  his  first  post-SJS'9  appearances,  W5LFL  spok 
Foothill  [CA]  College.  We  record  his  dedication  to  amateui 


eat 
amateur  radio. 


Last  February,  Dr.  Owen 
Carriott  W5LFL  descfibed 
bis  historic  space-shuttle 
operations  in  a  speech  given 
to  over  a  hundred  hams  at 
Foothill  College  in  Los  Altos 
Hills,  Calffornia.  Ov^en  was 
in  the  Bay  Area  to  address 
engineering  faculty  and 
students  at  Stanford  Univer- 
sity, his  alma  mater.  His  ap- 
pearance at  Foothill  was  ar- 
rant by  Ted  Harris  NBIIU, 
Disaster  Services  Director  for 
the  Palo  Alto  (California)  Red 
Cross. 

Before  Owen  spoke,  col- 
lege trustee  Robert  Smith- 
wick  W6 1 ZU  noted  how  ap- 
propriate it  was  that  the  first 
ham  to  operate  from  space 
should  address  a  group  at 
Foothill,  because  the  col' 
lege  was  the  original  home 
base  for  Project  OSCAR.  Dr. 
Smithwick  also  reminisced 
^x}ut  the  beginning  of  the 
space  age  in  October  of 
1957. 

The  following  is  an  edited 
transcript  of  Dr.  Carriott's 
talk. 

Smittv  mentioned  the 
events  that  occurred  Oc- 
tober 4,  1957.  I  wef[  remem- 
ber where  I  was  on  that  eve- 
ning, I  was  a  graduate  student 
here  at  Stanford  University, 
just  in  the  process  of  looking 
for  some  interesting  disser- 
tation subject  when  all  of  a 
sudden  the  Russians  were 
kind  enough  to  provide  the 
ideal  opportunity  with  this 
beeping  satellite  putting  out 
its  beeps  on  20  and  40  MHz. 
On   that   Friday   evening, 

48     73  Magazine  *  June,  19S4 


we  went  out  to  the  radio- 
propagation  field  site  (along 
with  a  good  many  other 
hams)  and  listened  to  the 
sputnik  beep  its  way  around 
the  Earth,  all  of  us  of  course 
amazed. 

The  field  site  was  pretty 
well  equipped:  We  had  a 
number  of  chart  recorders 
and  different  kinds  of  anten- 
nas there  because  the  field 
site  at  that  time  was  being 
used  for  studies  of  propaga- 
tion effects.  Therefore,  we 
could  connect  up  the  out- 
put of  the  Coy  ins  receivers 
to  the  chart  recorders  and 
look  at  the  amplitude  and 
also  the  very  interesting  fad- 
ing pattern,  which  of  course 
was  quite  different  than  any 
kind  of  fading  that  had  ever 
been  observed  on  normal 
20-MHz  propagation  paths. 

I  can  remember  the  ques- 
tion being  asked,  ''Well, 
that's  puzzling:  Why  is  that 
fading  coming  along  here  at 
something  like  a  one-  or 
half-a-Hertz  rate?"  The  per- 
son who  asked  was  Profes- 
sor Ron  Bracewell,  and  I  sus- 
pect he  knew  the  answer  to 
the  question  at  the  time  he 
asked.  But  the  question  was 
asked  to  get  us  graduate  stu- 
dents thinking  about  it 

Well,  that  fading,  as  you 
all  probably  already  know, 
turned  out  to  be  the  Faraday 
rotation  of  the  satellite  sig- 
nals. As  a  signal  travels 
down,  as  it  propagates 
through  the  ionosphere,  its 
polarization  is  rotated  and 
that  produces  the  fading 
pattern  which  we  see  on  the 


ground.  It  was  very  fortu- 
nate for  me,  as  that  turned 
into  a  dissertation  topic  in 
the  next  year  or  so. 

So  I  very  well  remember 
what  happened  that  Octo- 
ber, and  it  certainly  was  a 
very  exciting  time,  that  eve- 
ning as  well  as  for  the  next 
year  or  two,  as  we  began  to 
understand  something  more 
about  how  radio  signals 
propagate  through  the  iono- 
sphere. 

Spacelab  Constraints 

Well,  we  could  go  on  with 
some  of  the  historical  stuff,  I 
think,  for  most  of  the  after- 
noon. There's  an  awful  lot  of 
interest  associated  with  it. 
But  let  me  talk  about  events 
of  more  recent  history,  like 
in  the  last  couple  of  months. 
That  is,  specifically,  what  we 
were  able  to  do  on  Space- 
lab. 

We  were  on  duty  for  12 
hours  a  day,  and  my  ham  ac- 
tivities were  very  carefully 
constrained  to  make  sure 
that  they  did  not  interfere 
with  any  of  our  basic  mis- 
sion objectives.  I  had  a  list 
of  12  items  which  could  not 
be  violated  in  terms  of  the 
ham  operations,  including 
such  constraints  as  no  more 
than  an  hour  a  day,  never 
when  I  was  on  duty,  and  all 
these  kinds  of  things.  And  as 
a  matter  of  fact  there  was 
no  infringement  of  the  main 
objectives  of  the  flight  We 
did  accomplish  all  of  the 
scientific  activities  that  we 
were  scheduled  to  do— and 
more,  in  many  cases --and  I 


still  managed  to  find  a  little 
bit  of  time  for  the  ham  activ- 
ities in  the  off-duty  periods. 

STS-9  Equipment 

Now,  some  of  you  have 
perhaps  already  gotten  the 
February  QST,  so  youVe 
seen  a  picture  of  the  little 
hand-held  transceiver  that 
was  used  for  the  in-flight 
communications.  HI  just 
mention  a  little  bit  about 
some  of  its  characteristics.  It 
was  essentiaHv  a  Motorola 
design,  but  it  was  built  by  irh 
dividual  Motorola  employ- 
ees during  their  offnJuty 
time.  It  may  have  been  a  lit- 
tle bit  modified  from  their 
standard  design;  t  don't  real- 
ly know. 

The  radiated  power  was 
only  4  Watts,  but  in  spite  of 
that,  the  signal-to-noise  cal- 
culations showed  very  good 
margins.  I  know  the  people 
here  at  San  Jose  City  College 
had  perhaps  as  good  a  cali- 
bration as  any,  and  1  think 
your  numbers  were  some- 
thing like  40  to  43  dB  signal- 
to-noise  ratio.  And  certainly 
when  we  were  in  an  attitude 
in  which  the  antenna  was 
pointed  toward  the  Earth, 
people  could  hear  from 
horizon  to  horizon  with  an 
excellent  signako-noise  ratio. 

The  antenna  that  we  used 
was  also  built  by  hams, 
these  at  the  Johnson  Space 
Center  Amateur  Radio  Club, 
It  was  their  own  design.  It 
was  essentially  a  single  split 
ring,  and  then  the  feedpoint 
was    adjusted    around    that 


split  ring  until  the  imped- 
ance was  matched  to  the 
50-Ohm  coax.  The  measured 
swr  before  the  flight  was  1 .2 
or  1.3,  something  like  that 
—  really  quite  gcxxJ. 

The  antenna  was  mount- 
ed in  a  little  dish  about  five 
or  six  inches  deep  and  put  in 
the  overhead  window  in  the 
aft  flight-deck  area,  right  be- 
hind the  cockpit  area.  It 
worked  extremely  well  I 
don't  know  what  the  real 
swr  in  flight  was  — I  didn't 
have  a  meter— but  it  must 
have  been  very  close  to 
what  we  had  measured  prior 
to  flight  on  the  ground,  be- 
cause the  performance  as 
near  as  we  could  tell  was  ab- 
solutely nominal  and  gave 
very  good  results. 

I  had  to  take  the  antenna 
down  after  every  operation, 
because  it  really  filled  up 
one  of  these  overhead  win- 
dews  and  the  other  crew 
members  preferred  to  have 
the  opportunity  to  look  out 
instead  of  at  the  back  of  this 
metal  dish.  And  so,  after 
each  pass  on  which  I  was  us- 
ing it  I  took  it  down  and  sort 
of  tap>ed  it  over  to  a  side 
wall  where  tt  was  out  of  the 
way.  And  then  I  just  took  a 
few  minutes  to  put  it  right 
back  up  in  the  overhead 
window  again  when  the  next 
opportunity  came  along. 

U.  &  Passes 

We  had  publicized,  as  t 
expect  most  of  you  know, 
what  the  most  favorable  o|;> 
portunities  would  be.  We  in- 
dicated that  not  all  of  those 
listed  would  be  possible  in 
flight  and  that's  the  way  it 
turned  out.  But  still,  most  of 
my  operations  were  among 
those  that  were  listed  in  the 
pre-f light  forecasts 

We  got  an  extra  day  ex- 
tended to  the  flight  and  of 
course  we  had  no  predic- 
tions for  those,  but  a  lot  of 
the  good  hamming  opportu- 
nities came  in  just  the  last 
two  or  three  days  of  the  mis- 
sion. By  that  time,  I  think 
people  pretty  well  knew 
how  to  use  the  orbital  ele- 
ments that  were  transmitted 


Dr.  Owen  Carriott  WSLFL  speaks  at  Foothil!  Co//ege  about 
his  STS-9  amateur-radio  activities.  (Photo  by  Jim  Koski  ^76 VV) 


by  the  ARRL,  and  I  suspect 
most  of  you  knew  pretty 
well  when  the  spacecraft 
would  be  coming  over.  Ise- 
cause  certainly  it  sounded 
as  though  there  were  plenty 
of  people  on  the  ground 
who  knew  when  to  transmit 

One  of  the  most  interest- 
ing passes  came  right  down 
across  the  Mississippi  Valley 
on  either  the  last  or  oext-to- 
last  day  in  orbit.  I've  had  re- 
ports from  people  on  both 
the  east  and  west  coasts 
who  were  able  to  hear  those 
transmissions.  In  this  case, 
the  antenna  was  pointed 
right  down  toward  the  Earth, 
and  signals  were  received 
well  beyond  the  actual  geo- 
metric horizon.  Probably 
some  refraction  in  the  iono- 
sphere, a  tittle  bit  of  refrac- 
tion around  the  limb  of  the 
Earthi  would  account  for 
the  fact  that  the  signals  were 
really  heard  over  a  substan- 
tially larger  distance  than  a 
geometric  straight*line  path. 

It  also  turned  out  that 
even  when  the  antenna  was 
pointed  toward  the  sky, 
there  was  enough  of  a  side 
lobe  around  the  edges  of  the 
vehicle  that  some  transmis- 
sions  could  be  heard  on  the 
ground,  and  vice  versa,  al- 
though of  course  signal  lev- 
els were  very  much  lower 
than  when  the  antenna  was 
pointed  in  an  optimal  direc- 
tion. 

Special  QSOs 

A  number  of  special  con- 


tacts were  established.  For 
example,  i  talked  with  my 
home  ham  club  in  Enid,  Ok- 
lahoma, W5  Hot  Tea  Kettle, 
where  I  started  when  I  was  a 
teenager.  My  mother  was  at 
the  shack,  so  I  had  a  few  mo 
ments  to  exchange  a  greet- 
ing with  her  And  on  the 
same  pass,  headed  toward 
the  southwest  we  passed 
over  the  Johnson  Space  Cen- 
ter where  my  sons  were  at 
the  local  ham  club.  So  it  pro- 
vided an  opportunity  to  ex- 
change a  few  words  with 
them, 

I  think  most  everyone 
knows  that  Senator  Barry 
Coldwater  has  been  very  im* 
portant  to  our  ham  activities 
by  supporting  ham  interests 
in  Congress.  I  had  a  special 
opportunity  to  talk  with  him 
for  a  few  seconds  passing 
down  the  east  coast.  And  al- 
so, very  fortunately,  I  talked 
with  W1AW.  They  were 
competing  right  along  with 
everybody  else  and  man- 
aged to  show  up  on  one  of 
the  published  frequencies. 

King  Hussein  was  another 
interesting  brief  conversa- 
tion. Of  course,  there's  not  a 
lot  of  competing  activity  fly- 
ing over  the  Near  East  so  I 
didn't  have  too  much  trou- 
ble having  a  very  nice  brief 
conversation  with  him. 

Shuffle  Communicattofis 

One  final  contact  !  want 
to  mention  came  when  we 
were  flying  over  Australia. 
One  of  our  astronaut  per- 


sonnel, Dr.  Joe  Kerwin,  is  on 

assignment  in  Australia  near 
the  NASA  tracking  station  at 
Canberra.  We  talked  with 
the  hams  there,  and  they 
went  out  and  set  up  a  fairly 
high-gain  antenna  at  one  of 
their  tracking  locations  — it's 
still  ham  gear,  howev- 
er-and  I  prearranged  a 
time  and  frequency  to  meet 
with  them. 

We  had  it  arranged  that 
rd  set  up  the  communica- 
tion via  the  ham  link,  but 
then  they  would  patch  me  in 
via  their  federafiy-leased 
telephone  lines  back  to  the 
capcom  [capsule  communi- 
cator] in  Houston.  So  I 
talked  to  Joe  briefly  and  to 
all  the  hams  at  that  station, 
and  then  they  patched  me  in 
to  the  federal  line  and  I 
talked  to  the  capcom,  who 
was  communicating  with 
the  spacecraft  via  the  nor- 
mal channels  from  the  con- 
trol center  in  Houston.  And 
the  quality  of  that  transmis- 
sion  was  better  than  the  nor- 
mal Ku-band  transmissions- 
It  very  much  impressed  the 
other  members  of  the  flight 
crew  and  the  flight  com- 
mander, John  Young. 

John  is  also  the  head  of 
the  Astronaut  Office,  and  I 
think  there  really  is  a  gerb 
uine  interest  in  the  possibili- 
ty of  having  something  like 
this  available  for  a  backup 
communications  mode  in 
the  future.  Whether  or  not 
anything  develops  from 
that  I  don't  know.  But  I 
think  his  interest  is  signifi- 
cant and  others  in  the 
NASA  administration  have 
also  mentioned  that  to  me. 

Advantages  of  2  Meters 

I  think  2  meters  was  a 
good  choice  for  the  opera- 
tion. Some  people  have 
asked  me  since,  "Well, 
shouldn't  we  go  to  higher 
frequencies?"  or  "Shouldn't 
we  go  down  to  HF  and  look 
for  more  interesting  propa- 
gation effects?"  All  those 
things  are  interesting  to 
think  about  and  we  might 
want  to  consider  something 
different  on   another  occa- 

73  Magazine  *  June,  1964    43 


sion.  But  for  this  first  oppor- 
tunity, 1  think  2  meters  was 
exactly  the  right  choice. 

First  of  all,  the  Doppler 
shifts  are  about  plus-or- 
mtnus  3.5  kHz.  and  if  you 
can  imagine  using  anything 
other  than  an  FM  receiver 
—say,  single  sideband  — 
you'd  be  continually  trying 
to  track  and  take  out  that 
Doppler  shift  both  on  board 
and  on  the  ground.  It  would 
be  a  terrible  job.  With  all  the 
hundreds  of  signals  being  re- 
ceived and  everybody  hav- 
ing different  Doppler  shifts, 
it  would  be  a  hopeless  task. 
Working  with  an  FM  dis- 
criminator, of  course,  any 
place  you  operate  along  the 
passband  of  the  center  part 
of  that  discriminator  circuit, 
if  1 1  take  out  the  Doppler 
shift  for  you.  So  that  was  an 
enormous  advantage  imme- 
diately. 

And  the  second  thing 
about  an  FM  circuit  is  that  it 
also  tends  to  select  the 
strongest  signal  and  sup- 
press the  others.  That  was  al- 


so extremely  important 
from  the  practical  stand- 
point of  trying  to  pick  out 
one  or  two  stations  from 
maybe  a  hundred  that  were 
calling  on  each  of  the  uplink 
frequencies.  So  the  FM 
transceiver  at  2  meters  was 
realty  an  ideal  choice  for 
this  first  effort 

Future  Changes 

All  in  all,  ifs  just  hard  to 
imagine  how  we  might  have 
done  things  much  different- 
iy,  although  I  do  want  to 
make  a  couple  of  points 
about  that. 

First,  you1l  see  in  that  pic- 
ture on  QS I  that  I  was  oper- 
ating with  a  very  lightweight 
headset  fust  a  Irttle  single 
bar  over  my  head  with  one 
earpiece  and  a  little  sponge 
underneath  that.  This  was 
designed  for  working  in  the 
spacecraft  ^o  that  I  could 
hear  all  the  other  things  go 
ing  on  around  me.  That  was 
important  for  using  it  in  a 
spacecraft  environment  for 
other  purposes,  but  it  was  a 


difficulty  in  working  with 
ham  equipment  There  was 
too  much  outside  noise. 
What  I  really  needed  was  a 
pair  of  good  headphones 
that  would  really  isolate  me 
from  the  outside  world. 

And  then,  the  only  really 
serious  thing,  there  was  no 
variable  adjustment  on  the 
squelch  circuit  in  the  trans- 
ceiver. And  the  squelch  cir- 
cuit operated  such  that  it 
compared  the  signal  at  the 
center  of  the  band  with 
what  it  interpreted  to  be 
noise  coming  in  from  the 
outer  edges  of  the  passband. 
Well,  with  plus-or*minus  3.5 
kHz,  all  these  other  signals 
coming  in  provided  what  the 
receiver  thought  was  a  lot  of 
extra  noise  in  the  fringes  of 
the  passband.  Therefore,  it 
would  often  decide,  "Well, 
the  signal  isn't  stronger  than 
the  sideband  noise,  there- 
fore I'll  tum  on  the  squelch, 
because  if  s  not  a  strong  sig- 
nal/' And  that  way,  the 
whole  receiver  would  be 
deadened,  whereas  really  t 


had  plenty  of  good  signals 

there,  but  no  opportunity  to 
inhibit  the  squelch.  So  that  is 
the  one  design  feature  that 
I'm  sure  we  would  change 
the  next  time  around. 

Missiori  Successful 

Outside  of  that  things 
went  really  beyond  our  ex- 
pectations. Every  objective 
we  set  before  the  flight  was 
achieved  during  the  time  I 
was  able  to  operat3e.  1  was 
on  the  air  for  something  like 
four  or  five  hours  total,  and 
during  that  interval,  some- 
thing like  350  two-way  con- 
tacts were  established.  And 
the  ARRL  has  about  ten 
thousand  requesb  for  5WL 
reports.  So  it  was  really  very 
widely  participated  in  by 
both  hams  and  SWLs.  It  was 
a  marvelous  opportunity 
and  a  great  pleasure  for  me 
to  have  had  this  chance  to 
operate  from  space.  And  I'm 
just  sorry  I'm  couldn't  have 
had  a  two-way  with  every 
one  of  you  who  tried  to  con- 
tact me.  ■ 


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73  Magazine  ■  June,  1984    51 


Kantronics  UTU 

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73  Magazine  •  June*  \98A    S3 


Better  the  R-70 

At  your  own  risk,  you  can  soup  up  one  of  Icom's 
super  receivers.  How  to  do  it  was  not  read  here. 


Tom  Carlson  KE4AQ 
Sox  4776 
ARO  NY  09109 

Being  an  avid  SWBC 
DXer,  I  have  read  with 
interest  in  many  publica- 
tions the  consistently  favor- 


NiRflOW 


able  reviews  given  to  the 
new  I  com  R-70  HF  receiver  I 
have  been  SWBC  DXing  for 
a  period  of  time  using  a 
highnituaiity  portable  receiv- 
er, but  I  finally  reached  the 

point  where  I  needed  to  up- 
grade to  another  level  to 
snatch  some  of  the  weaker 
stations  I  sought  With  this 
idea  in  mind,  I  recently  pur- 
chased an  IC  R-70  and  have 
been  having  a  ball  ever 
since. 


In  the  AM  mode  of  opera- 
tion, the  passband  tuning 
allows  the  passband  to  be 
varied   from   6   kHz   to  2.7 

kHz.  In  the  SSB  mode,  the 

passband  can  be  varied 
from  23  kHz  to  500  Hz.  This 
is  indeed  sufficient  for  many 
applications,  yet  it  seems 
that  many  of  the  rarer  DX 
stations  that  I  sought  were 
sandwiched  between  two  or 
more  powerhouse  SWBC 
stations  at  ±  5  kHz.  Need- 


fi&  7. 


Photos  by  0*  A,  Carlson 


fess  to  say,  the  resultant  co- 
channel  interference  would 
many  times  render  my  de- 
sired station  unintelligible, 
in  spite  of  the  passband 
tuning. 

It  was  at  this  point  that  1 
pulled  out  the  schematic 
diagram  and  began  investi- 
gating    the     possibility     of 

switching  in  the  narrower- 
bandwidth  ceramic  SSB  fil- 
ter instead  of  the  standard 
ceramic  AM  filter. 

The  steps  that  follow  will 


L^ 

^- 

^^^B       ^^^^^  _ft- jK 

k?^^'   '^    ^m 

^  ^     ^B ' 

^^^ 

Completed  conversion.  The  switch  may  be  accessed  whh     Routing  of  wires  from  the  switch  to  their  respective  connec- 
ease  through  the  top  trapdoor.  tion  points. 

54     73  Magazine  •  June,  1984 


Wke5  connected  as  per  schematic  dia^am. 


Mounting  bracket  formed  from  a  bent  spring  clip. 


describe  the  modification  of 
the  fcom  R-70.  At  the  3rd  hf 
of  455  kHz,  the  SSB  filter  of 

23  kHz  will  be  switch-se- 
lectable to  replace  the  stan- 
dard AM  e^kHz  filter.  While 
this  cut  down  on  the  fidelity 
of  music  and  some  voice 
transmissions,  in  many  cases 
it  dramatically  reduced  the 
ccKhannet  interference  prob- 
lem. It  allowed  me  to  pull 
more  than  a  few  signals  out 
of  the  mud.  Physically,  no 
components  are  removed 
and  nothing  is  done  to  the 
receiver  that  cannot  be 
reversed. 

The   parts   and   toots   re- 
quired are: 

•  1  DPDT  toggle  switch 
(small)-ALCO  MTB206N  or 
equivalent 

•  2  feet  of  hook-up  wire 
[20-24  gauge) 

•  Solder  sucker  or  solder 
wick 

•  Needle-nose  pliers 

•  Side  cutters  and  wire 
strippers 

•  Phillips  screwdriver 

•  Soldering  iron  and  solder 

•  Schematic  diagram 

•  Parts  layout  diagram 

1.  Remove  the  12  screws 
that  attach  the  top  cover  to 

the  chassis  of  the  receiver 
and  lift  the  cover  off, 

2.  Remove  the  7  screws 
that  hold  the  main  circuit 
board  in  place  and  lift  up 
the  main  circuit  board.  The 
wiring  harnesses  connected 
to  the  circuit  board  do  not 
have  to  be  removed. 

^Sf ff  List  of  Aavsrtfsers  on  paga  f  Id 


3.  With  the  parts  layout 
diagram  and  schematic  dia- 
gram,  locate  R81,  R75,  D46, 
and  Q12  on  the  main  circuit 

board. 

4.  Using  the  solder  sucker 
or  solder  wick  and  needle- 
nose  pliers,  lift  the  end  of 
R81  that  is  soldered  into  the 
same  foil    track  that  holds 

the  anode  of  D46. 

5.  As  in  step  4,  lift  the  end 
of  R75  that  is  soldered  into 
the    same    foil    track    that 

holds  the  collector  of  Q12, 

6.  Cut  4  6-inch  pieces  of 
hook-up  wire.  Solder  wires 
to  the  following  points: 

(a)  the  free  end  of  R81 

(b)  the  free  end  of  R75 

(c)  the  hole  that  formerly 
held  the  end  of  R75 

(d)  the  anode  of  D46 

7.  These  4  wires  will  be 
soldered  to  the  DPDT  switch 
as  shown  in  Fig.  1,  The  wires 
should  be  routed  and 
dressed  neatly  to  where  you 
elect  to  mount  the  switch. 
The  photos  will  demonstrate 
one  possibility. 

I  mounted  my  switch  to 
one  of  the  screws  that  hold 
the  main  circuit  board  into 

place.  A  bracket  was  formed 
from  a  spring  clip  bent  to  90 
degrees,  a  1/4-inch  stand-off 
spacer,  and  a  long  bolt  with 
lock  washers.  This  held  ev- 
erything to  the  main  circuit 
board  and  chassis  (see 
photos).  Use  your  imagina- 
tion on  this  one  and  see 
what  you  can  come  up  with 


from  your  junk  box.  I  am 
able  to  access  the  switch 
with  ease  through  the  trap- 
door in  the  top  cover. 

In  one  position,  the  cir- 
cuit is  in  its  normal  config- 
uration. In  the  other  posh 
tion,  the  SSB  filter  is  substi- 
tuted for  the  AM  filter  to 
greatly  improve  selectivity. 
It  must  be  kept  in  mind  that 
this  conversion  affects  the 


AM  mode  only.  The  switch 
must  be  returned  to  the  nor- 
mal position  when  other 
modes  are  used  although  no 
harm  will  occur  if  the  switch 
is  mistakenly  left  in  the 
"narrow"  position. 

This  option  has  proven  in- 
valuable on  a  number  of  oc- 
casions   and    improves    on 

what  is  already  an  excep- 
tional receiver.  ■ 


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I 


73  Magazine  •  June,  1984     55 


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55    73  Magazine  *  June,  1964 


I 


NO  RADIAL 


The  f^ 3  half  wavelength  design  alimlnates  the 

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fl3  brings  high  perfonnancd  antenna  features 
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R3  Is  a  complete  antenna  system  ready  to  in- 
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FEATURES 
3  dB  Gain,  ref  V^Awhlp 

No  Radials 

36C^  Coverage 

Integral  Tuner  with 

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24  Volts  To  Tuner 

110  or  220  Volt  Operation 

75  ft  (22.9m)  Control  Cabte  Included 

Only  22ft  (6Jm)  High 

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•  New  Antenna  Switch!  From  panel  mounied  Select  2  coax 
lines,  direct  or  througt^  tuner .  random  wire/balanced  line  or 
tuner  bypass  for  dummy  load. 

•  Newairwound  Inductarl  Larger  more  efliclent  12  position  air- 
wound  inductor  gives  Jower  losses  and  more  watts  out.  Run  up 
to  300  watts  RF  power  output  Matcties  everything  from  1  8  to 
30  Mi-iz  dipoles,  inverted  vee  random  wires,  verticals,  mobiie 
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CW  with  nearly  any  ptrsanal  computer  (VfC-20. 
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etc.).  Use  Kantroni^^  m  most  other  RTTY/CW 
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active  filter  for  CW  and  170  Hz  shift  Sends  170, 
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New  Fiiturti:  Individually  calibrated  resistance 
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utes. Half  rattng  for  20 


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Constant  output  as  bandwidth  is  varied;  linear 
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lets  ears  and  mind  reject  QRM  Inputs  for  2  rigs. 
Plugs  into  phone  (ack.  Two  watts  for  speaker. 
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5S    73  Magazine  •  June,  1984 


Free  MFJ  RTTY/ ASCII/CW  software  for  VIC-20  or  C*64  with  purchase  of 
MFJ-1224,  IVIFJ-1225  or  MFJ-1228  from  MFJ.  Send / receive  Baudot, 
ASCII,  CW.  Type  ahead  buffer.  24  hour  clock.  Supports  VIC  printer.  IVIenu 
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RTTY/ASCII/ 
AMTOR/CW 
INTERFACE 
CARTRIDGE 
FOR 


VIC-20/C*64    MFJim*69*^ 


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IN CLUDESMFJ-1Z28.  SOFTWARE  OH  TAPE.  ADD 
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Mm  vtnttila  WHY/  ASCrt/AMTOA/CW  intir 
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more  value  tar  your  money  than  any  othftr  Interface 
cartridge  aval  ladle. 

Sima  Inttrfica  ceffrfcf£|«  works  for  both  VIC-20  and 
Commodore  64.  Plugs  into  user's  port. 

Cliooti  from  wide  wiriity  of  RTTY/ASCH/CW, 
even  AMTOfl  software.  Not  mafried  to  one  on-board 
software  padiaoe-  Use  MFJ.  Kafiironlcs,  AEA  plus 
other  software  cartrit^.  tape  or  &l$k. 

Kfi  H£  ind  170  Hz  shifts  on  ftceivt  wd  transmit. 

Hit  mart  ind  i|fta««  mitpvti  for  scope  tunfng. 

HonMiyRevertt  tikttch  eNmlnates  retuning. 

Tnieilttll  chirtnil  mart  and  tpaci actfva  fin»n amt 
automatic  thresiiokl  correction  gives  good  copy  when 
one  tone  Is  ot>{ltarated  by  QRM  or  stIectJve  f^ng. 

Eaty,  poiltfva  ^nlng  with  twin  LEO  iftdlcatm^, 

H«mw  aOO  Kz  acttve  CW  fitter  Automatic  PIT. 

Exir  2208  sine  generator  for  AFSK  output. 

Shielded  XCVR  AFSK/PTT  lirterfm  eibli  pfovld- 
id.  Plus  or  minus  CW  keyed  output.  FSK  out. 

Powered  by  eomptfter  {few  ma,),  no  power  adapter 
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QIast  epoxy  PCS.  Aluminum  enclosure,  ^VzxWtxl ", 

UNIVERSAL  SWL  RECEIVE 
ONLY  COMPUTER  INTERFACE 
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TAPf  ANO  CABLE  FOR  V^C'?Q  OA  C-«4.  DADE  R  MFi-1Z^ 
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Uie  y{3ur  perianal  computif  and  communications 
receiver  to  receive  commercial,  military  and  amateur 
RTTY/ASCII/AMTOR/CW  traffic. 

Plu^t  between  receiver  and  VIC-20,  Apple,  TRS- 
aOC.  Atari.  TI-99,  Commodore  64  and  most  other 
person  a  f  computers.  Requires  appropriate  software, 

Ose  MFJ,  Kantronics,  AEA  and  other  RTTY/ 
ASCII/AMTOR/CW  software. 

Copiu  ill  iblfti  and  all  ipeeda.TwIn  LED  indicatofs 
nnakes  tuning  easy,  positive  Normal/Reverse  switch 
elfminales  tunirjg  ^  fnverled  RTTY,  Speaker  out 
jeek.  \nc\ii6Bs  cable  m  Iniertaoe  MFJ't224  to  VlC-20 


■  UNIVERSAL  RTTY/ASCII/AMTOR/ 
CW  COMPUTER  INTERFACE 

Lets  you  send  and  receive  compiitefized  RTTY/ASCII/AMTOR/CW.  Copies 
all  shifts  and  all  speeds.  Copies  on  bath  mark  and  space.  Sharp  8  pole  active 
filter  for  170  Hz  shift  and  CW«  Plugs  between  your  rig  and  VIC-20,  Apple, 
TRS-80C,  Atari,  TI-99,  Comnnoflore  64  or  other  personal  computers.  Uses 
MFJ,  Kantronics,  AEA  software  and  other  RTTV/CW  software. 


0^ 


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PUTERIZED RTTY/ASCil/CW.  ORDER  MFJ-im/MFJ-l^  FOR  VSC-20 
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New  MFJ-1224  RTTY/ASCII/AMTOfl/CW  Cwtk 
puter  fnterfict  lets  you  use  your  personal  compifter 
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AMTOR/CWstation  for  sendfrg  and  receMng,  Plugs 
between  rig  and  VIC-20.  Apple,  TRS-BOC.  Atari. 
TI-99,  Commodore  54  and  most  others. 

Use  MFJ  software  tor  ViC-20.  Commodore  64  and 
Kantronics  for  Apple.  TRS-flOC,  Atari,  TI-99  and 
most  other  software  for  RTTY/ASCII/AMTOR/CW. 

Eity^  potntve  luntng  wiTh  twin  LEO  Indicators. 

Copy  any  thifl  (170.425.&50  Hz  and  all  otner  shirts) 
and  any  speed  (5-100  WPM  RTTY/CW  and  up  to  300 
bayd  ASCII). 

Co  pin  on  both  mari(  and  iptce,  not  mark  only  or 
space  only,  to  Improve  copy  under  adverse  conditions. 

Shiq}  8  pola  170  Hz  ihlft/CW  actl¥i  fliter  givas 
good  copy  under  crowded,  fading  ana  weak  signal 
conditions.  Automatic  noise  llmlter  suppress  static 
crashes  for  better  copy. 

Normii/Revini  twttcli  etimlnates  retunlng.  +250 
VOC  loop  output  drives  RTTY  machine.  Speaker  |ack. 


AittomitJe  tracking  copies  drifting  signal. 

Eiar  2206  tinfl  oenftntor  gives  phase  (^ntinyous 
AFSK  tones.  Standard  2125  Hz  mark  and  2295/297& 
Hz  space.  Microphone  llnfl:  AFSK  out,  AFSK  ground. 
PTT  out  and  PTT  ground. 

FSK  levying  output.  Plus  afKl  minus  CW  keying. 
CW  transmit  LEO.  Extrnal  CW  key  jacit. 

Kintronles  eompitlbli  vkM, 

Eidushrt  gtmnl  purpose  lodnt  altows  Interfac- 
In9  to  near fy  any  personal  computer  with  most  appro- 
priate software.  Available  TTL  lines:  RTTY  demod 
out,  CW  demod  out  CW-ID  Input,  +5  VDC.  ground. 
All  signal  lines  are  buffered  and  can  be  inverted 
using  an  internal  DIP  switch. 

Use  GaKo  sQflwafB  with  Apple,  RAK  with  VlC-20, 
Kantronics  with  TRS-80C.  TI-99.  N4EU  wfth  TRS-80 
III,  IV.  Some  computers  with  some  software  may  re- 
quire some  external  components. 

Met^i  cabinet.  Brushed  alum,  trpnt  8x1!^x5  in. 
12-15  VDC  or  110  VAC  w(th  adapter,  MFJ-1312.S9  95 

MFj"im,  a.K,  m^m  wmmit  fv  mpj^thi 


SUPER  RTTY  FILTER 


CW  INTERFACE  CARTRIDGE 

FOR  VIC  20  y  C-64 


HF\  €Qi0QTli  hrttlllf  44^  f&JXR 


L«l4i 


MfJ^TS 

»399B 

SuptrRTTY 
filter  greatly 
improves  copy  under 

crowded,  fading  and  weak  signal  conditions. Improves 
iny  RTTY  receiving  system.  S  pole  bandpass  active 
filter  for  170  Hz  shift  (21Z5/e295  Hz  mark/space),  200 
or  400  Hi  bandwidths.  Automatic  noise  limlter.  Audio 
In.  speaker  out  jacks.  On/oflVbypass  switch.  "ON" 
lEO.  12  VDC  Of  110  VAC  with  optional  AC  adaptor, 
MFJ-1312,  $8.95.  3x4x1  inch  aluminum  cabinet. 


39 


9S 


or  Commodore  64. 4'/^iVSK4Vi  inches,  12-15  VOC  or 
110  VAC  with  optional  adapter,  MfJ-1312, 13-95. 


High  ptftormanci  CW 
Inttfliea  cartridge  Gives 
"j!!  iNCftllent  perfof  Fnanc« 

MFj*1229  ^^^^^  ^*^^  >  crowded,  noisy 
conditions.  Works  for  both  VIC-20  and  Commodore 
64.  Plugs  into  user's  port. 

4  pole  100  Hz  tundwimh  active  llitar.  800  Hz 
center  frequency.  3  pole  active  iowpass  post  detection 
filter.  Exclusive  automatic  tracking  comparator. 

Plua  and  mlnui  CW  kiylng.  Audio  In,  speaker  out 
lacks.  Powered  by  computer. 

includes  Basic  lltUng  of  CW  transmit/receive  pro- 

gram.AvaJlabieon  cassette  tape,  MFJ-1 252 (VIC-20) 

or  MFJ-1 2&3 (0-64), K9S and  on  software  cartridge, 

MFJ-1254(VIC'20)  or  MFJ-I^(C^). $19.95. 

You  c^n  atso  use  Kantronics.  AEA  ^ther  softwart. 

Also  copy  RTTY  with  single  tone  detediofi. 


ORDER  ANY  PRODUCT  FROM  MFJ  AND  TRY  IT*M 
OIUQATION.  IF  NOT  DELIGHTED.  RETURN  WITH- 
IN3iDArSF0fl  PflOMFT  REFUND  (LESS  SHIFPIN09 

■  One  year  uneomSitlonil  guarantie  *  Made  m  USA. 
•  Add  $4.00  each  shipping/handling  *  C«Uef  wrtti 
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TO  OftOER  OR  FOR  rOUR  NEAJIEST 
DEAUR.  CAU  TOLi-FRE£ 

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t^  Se#  U$t  of  Advert tsers  on  Page  195 


73  Magazine  ■  June^  1984    59 


Elegant  Rotating 

K9AZG  did  it  right  W4RNL  makes  it  better. 
For  sightless  and  sighted  hams  alike,  this  update 

to  a  1982  article  will  be  revealing. 


L  B.  Cebik  W4RNL 

2514  Dereck  Drive,  Apt  H-1 

Knoxvifle  TN  37912 


A  simple  and  elegant  so- 
lution to  setting  beam 
headings  for  both  blind  and 
sighted  hams  is  the  K9AZG 
automatic  beam  aimer  (73, 
November,  1982).  With  a 
few  voltage  comparators, 
transistors,  and  relays  (plus 


the  usual  passive  and  pow- 
er-supply components),  the 
device  controls  CDE  and 
similar  rotator  control  boxes 
so  that  by  setting  a  single 
potentiometer,  the  operator 
can  step  back  and  relax  as 
the  beam  turns  to  the  de- 
sired heading  and  stops. 
Sightless  hams  now  have  an 
easy  way  to  determine 
beam  headings  reliably, 
while  the  sighted  ham  can 
use  the  beam-turning  time 


for  tune-up,  logging,  and 
other  activities. 

The  original  automatic 
beam  aimer  used  two  sec- 
tions of  an  LM339  quad  volt- 
age   comparator   to   detect 

the  desired  change  of  direc- 
tion, as  shown  in  Fig.  1.  (Fig. 
1  is  redrawn  from  the  origi- 
nal to  show  the  individual 
comparators.)  Each  compar- 
ator controls  a  transistor 
switch  and  relay  which  in 
turn   control   the  clockwise 


and  counterclockwise  switch- 
es of  the  CDE  box.  Like  any 
good  idea,  we  can  improve 
upon  the  original  and  over- 
come some  potential  prob- 
lems. This  article  describes 
some  improvements  which 
will  prevent  a  few  problems 
that  some  CDE  rotator  own- 
ers may  encounter  with  the 
original  design. 

The  Basic  Idea 

The  basic  idea  behind  the 


Photo  A.  The  completed  beam  aimer  sks  atop  the  rotator 
control  box  at  the  W4RNL  operatmg  position.  The  ac  switch 
and  power  LED  are  to  the  left  and  the  clockwise  and  counter- 
clockwise LEDs  are  to  the  right.  The  center  knob  is  the  direc- 
tion control  prior  to  the  addition  of  calibration  markings. 

60     73  Magazfne  •  June,  1964 


Photo  B.  An  interior  view  of  the  quick-fixed  beam  aimer  with 
the  improvement  board  to  the  right  The  front  ryerf board  con- 
tains the  power  supply  and  circuitry,  while  the  rear  board 
contains  the  relays  (only  two  needed  for  the  CD^4l 


automatic  beam  aimer  ap- 
pears in  Fig.  2.  The  500Ohm 
potentiometer  in  the  rotator 
head  changes  value  with  di- 
rection, standing  at  mid- 
scale  when  the  beam  points 
north  and  at  one  of  the  ex- 
tremes as  the  beam  points 
south.  Fed  by  an  unground- 
ed 13-volt  supply,  the  rotat- 
ing arm  creates  a  ground, 
thus  changing  the  voltage 
across  the  left  and  right  legs 
of  the  pot  as  the  beam 
moves.  From  extreme  point 
A  to  center  we  get  a  nega- 
tive voltage;  from  point  B  to 
center  we  get  a  positive  vol- 
tage; and  the  absolute  val- 
ues of  the  two  add  up  to  1 3 
volts. 

A  second  potentiometer 
across  the  rotator  pot  (say, 
about  25k)  will  read  13  volts 
across  its  extremes.  More 
significant  for  beam  aiming, 
the  voltage  between  the 
moving  arm  and  ground  will 
be  zero  when  the  arm  and 
the  rotator  pot  arm  are  equal 
percentages  away  from  the 
same  extreme  point  If  the 
beam  points  north  and  the 
second  pot  is  mid-scale,  the 
voltage  at  the  second  pot 
arm  will  be  zero.  If  we  move 
the  second  pot  counter- 
clockwise, leaving  the  beam 
north,  we  will  show  a  posi- 
tive voltage.  We  get  a  nega- 
tive voltage  if  the  second 
pot  arm  is  clockwise  with 
respect  to  the  beam  head- 
ing. Together,  these  voltages 
allow  us  to  turn  on  one  of 
two  relays  that  close  in  par- 
allel to  the  CDE  switches, 
thus  activating  the  rotator 
That  is  the  function  of  the 
K9AZC  circuit 

The  maximum  voltage 
that  the  comparators  in  Fig. 
1  can  see  is  either  plus  or  mi- 
nus 13  volts.  When  the  an- 
tenna is  counterclockwise 
south  and  we  move  the  sec- 
ond pot  amrt  clockwise  to 
the  other  extreme,  the  arm 
shows  ^13  volts  to  ground. 
In  the  opposite  condition, 
when  the  antenna  is  clock* 
wbe  south  and  the  pot  is  ful- 
ly counterclockwise,  the  arm 
shows  +13  volts.  If  both  the 
antenna  and  the  second  pot 


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f /g.  1  The  Ofigina!  K9AZC  automatic  beam  aimer  (redrawn). 


are  at  either  extreme,  the 
pot  amn  ideally  shows  zero 
volts. 

Design  Limits  ami 
Quidc  Fexe$ 

Unfortunately,  only  some- 
times can  we  achieve  the 
ideal  conditions  noted  above. 
There  are  two  design  limits 
to  the  original  beam  aimer 
that  may  present  problems 
to  some  hams  First  the  CDE 
rotators  have  limit  switches 
to  shut  off  either  clockwise 
or  counterclockwise  rota- 
tion at  the  south  heading. 
Among  other  functions,  the 
limit  switches  serve  to  keep 
us  from  wrapping  antenna 
cables  like  vines  around  the 
rotator  and  mast  stub.  The 
limit  switches  may  leave 
some  residual  voltage  at  ei- 
ther end  of  the  scale.  Imag- 
ine that  the  limit  switches 
cut  off  the  rotator  at  posi- 
tions X  and  Y  in  Fig.  2  If  the 
second  [X)t  is  at  its  extreme, 
some  small  voltage  will  exist 
and  the  relay  will  not  open. 
K9AZG  counters  this  at  one 
end  of  the  scale  with  a  cali- 
bration pot,  but  the  other 
end  of  the  scale  goes  to 
ground. 

The    quick    fix    for    this 


noT^Ton 

POTEN 

POSlTfOM 
TIOMETFH 

/ 

1/ 
X 

s 

/ 

1 

/ 

RQTJiTaft 

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1 

d 

13  VOLTS 

i«CCW  *^^^   CiRCUfTS 

/ 

BCAM  AEMEH   SENSING 
(^<OtENtlDHE:TeR 

— ^zana 

Fig.  2.  The  basic  elements  of  beam  aiming. 


problem  is  the  substitution  of 
a  low  negative^voltage  cir- 
cuit to  replace  the  ground 


connection  of  pin  7  of  the 
LM339.  Fig,  3  shows  a  suit- 
able  circuit  using   minimal 


I 


Phofo  C  An  interiof  view  of  the  improved  beam  aimer  shown 
from  the  opposite  side  of  the  case.  The  new  input  board 
stands  an  half-inch  pillars  over  the  LM339  socket  and  tran- 
sistors. The  feedthrough  barrier  strip  for  rotator^ontrof-box 
connections  is  visible  at  the  rear  of  the  cabinet 

73  Magazir}e  •  June,  1984    61 


■■ 


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F/g.  4.  Input  changes  to  reduce  excess/Ve  negative  voltage. 


fo  positive:  suPPiir 

RECTI  FlEA /FILTER 


Fig,  3.  Eliminating  residual  negative-voltage  effects. 


components.  The  20k  pot 
trims  the  clockwise  limit 
voltage  to  match  the  rotator 
cutoff  point 

The  second  design  fimit 
concerns  the  LM339.  This 
quad  voltage  comparator  is 
not  designed  for  negative  in- 
put vottages  on  either  the 
signal  or  reference  lines. 
National  Semiconductor  lin> 
its  negative  excursions  to 
—0-3  volts  in  tfieir  rating 
sheets.  Experiments  on  half 
a  dozen  339s  in  the  shack 
showed  that  between  6  and 
8  volts  negative  input  the 
comparator  would  cut  off. 
There  was  no  permanent 
damage,  and  the  339  sec- 
tion would  come  back  on 
when  the  negative  voltage 


dropped  below  the  limit 
toward  zero. 

The  effect  of  this  limita- 
tion is  that  when  the  anten- 
na is  fully  counterclockwise 
and  the  second  pot  arm 
goes  fully  clockwise,  the 
comparator  and  its  relay 
open  up  as  the  second  pot 
passes  east  (i.e.,  about  -7,5 
volts).  Thus,  a  rapid  excur- 
sion from  southwest  to 
southeast  might  result  in 
nothing  happening  or  might 
require  directional  adjust- 
ments in  small  steps. 

The  quick  fix  for  this  de- 
sign limit  is  to  keep  the  sec- 
ond pot  arm  voltage  less 
than  the  comparator  limit. 
Adding  a  470k  resistor  be- 
tween  the   22-f*F   capacitor 


and  the  branching  100k  re- 
sistors to  the  comparator  in- 
puts, as  shown  in  Fig.  4,  will 
keep  the  maximum  voltage 
below  7.  The  beam  aimer 
becomes  a  bit  less  sensitive 
since  now  each  volt  repre- 
sents around  50  degrees  of 
rotation  rather  than  28  de- 
grees. However,  control  is 
positive,  and  precision  re- 
mains quite  adequate. 

For  those  hams  using  the 
CD-44  and  similar  rotators, 
the  third  relay  in  the  K9AZG 
design  is  unnecessary  since 
there  is  no  separate  brake- 
solenoid  circuit  to  control 
and  no  required  delay  be- 
tween the  direction  switch 
and  brake-switch  release  To 
discover  whether  your  rota- 
tor requires  the  third  relay, 
check  the  rotator  schematic 


?5« 
DIRECTIONAL  I 


CDE  CQIVTROL  SOX 
TERUlMAL  STRjp 


1 10  VAC 


TO  SRAHI   CONTACTS 
IN  CD^   CONTROL 
BOX 


Fig  5.  A  simplified  beanrt  ain}er  for  the  C[M4  and  stmHar  rotators. 

62     73  Magazine  •  June,  1984 


in  the  operator's  manual  If 
pin  2  in  the  rotator  is  not 
connected  to  a  brake  cir- 
cuit then  the  unit  uses  an 
automatically-engaging  disc 
brake.  For  this  class  of  rota- 
tor, the  extra  relay  contacts 
in  the  clockwise  and  coun- 
terclockwise switch  relays 
may  be  connected  in  paral- 
lel and  used  to  control  di- 
rectly the  ''brake"  switch, 
which  actually  is  a  master 
ac  switch  for  the  rotator. 
Use  K9AZG's  precautions  of 
bringing  the  ac  to  a  female 
socket  on  the  CDE  control 
box  rear  panel  and  then  to 
the  beam-aimer  cabinet 

Fig.  5  shows  all  the  modi- 
fications combined  in  a  unit 
that  works  well  with  the 
CIIM4  rotator.  These  quick 
fixes,  however,  are  not  the 
best  possible  design  for  the 
beam  aimer 

Improving  the 
Beam-Aimer  Design 

The  automatic  beam  aim- 
er can  be  more  generally  im- 
proved by  a  little  redesign. 
Fig.  6  shows  the  full  set  of 
improvements.  First  using 
LM311s  with  a  dual  supply 
from  one  12-volt  transform* 
er  is  simple  enough,  ^rid  it 
provides  for  both  positive 
and  negative  trimming  of 
the  voltagecomparator  ref- 
erence lines  as  well  as  per- 
mitting the  311  to  accept  a 
+13- to  —13-volt  excursion 
The  uncommitted  collector 
of  the  311  output  allows  for 
a  zero-to-positive  output 
swing  to  control  the  switch- 
ing transistors.  This  design 
thus  overcomes  both  limita- 
tions of  the  original. 

Second,  a  slight  redesign 
of  the  delay  circuit  for  the 
brake     control     (which     is 


needed  for  larger  rotators 
using  brake  solenoids)  will 
overcome  a  further  poten- 
tial problem.  The  slow  de- 
cay of  the  base  voltage  in 
the  orginal  brake-relay  cir- 
cuit can  create  contact 
chatter  and  possible  arcing 
as  the  coil  voltage  drops  in 
the  transistor-collector  cir- 
cuit Additionally,  the  tran* 
sistor  may  draw  an  excessive 
load  while  the  base  voltage 
drops  through  the  linear 
range  toward  cutoff.  To  cre- 
ate a  very  positive  switching 
action,  we  need  add  only 
one  more  LM311,  using  it  to 
set  the  delay.  Its  output 
switches  rapidly,  turning  the 
transistor  on  and  off  with 
equal  speed.  In  addition,  we 
can  add  a  variable  delay  to 
the  311  circuit  and  choose  a 
value  with  the  printed-cir- 
cuit-board  pot  during  initial 
adjustment 

Construction 

Construction  of  the  beam 

aimer  in  any  version  is 
straightforward  and  well 
covered  by  K9AZG.  Perf- 
board  works  well  for  proto- 
types, although  pfinted<ir- 
cu  it-board  versions  would 
make  an  excellent  club  proj- 
ect The  photos  show  the 
W4RNL  layout.  In  both  pho» 
tographs,    the    rear    board 


DIRECT  10  HAL  :  -■ %M«— * 

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F/g.  6.  An  improved  automatic-beam-aimer  design. 


containing  the  relays  for  a 
CD-44  rotator  is  mounted  a 
full  inch  above  the  case  bot- 
tom to  clear  the  socket  pins. 
For  the  CD-44,  the  delay  cir- 


cuitry was  omitted.  The  for- 
ward board  containing  the 
power  supply  and  compara- 
tor circuit  rests  on  half-inch 
pillars    to    ease    front-panel 


<Z5 


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■  i-ii3-rZV  DTOT 
RELAYS 


connections.  Almost  any  oth- 
er configuration  will  work  as 
well.  Follow  K9AZC's  cau- 
tions with  respect  to  ac  con- 
nections to  the  rotator-con- 
trol-unit brake  switch,  wheth- 
er or  not  it  actually  controls 
the  brake  in  your  unit, 

One  photograph  shows 
the  beam  aimer  with  quick 
fixes  prior  to  modifications 
for  the  LM311  comparators. 
To  one  side  of  the  LM339 
board  is  the  LM311  circuitry 
board  which  supplanted  the 
quick-fix  version  of  the  aim- 
er   in    the    case.    The    new 


Parts  List 


Part 

Transformer.  12  V,  300  mA 

Ac  switch,  SPST  toggle 

Fuse,  3AG,  1/8  to  1/4  A 

Fuse  holder,  clip-in 

1 N4001 ,  50-plv  power  diode 

7812  12*V  regulator 

7912  -12-V  regulator 

e-V  zener  diode,  1  W 

lOOO-ziF,  25-V  electrolytic  capacitor 

47iCHtF,  16-V  eleclrotytic  capacitor 

22'^,  16-V  electrolytic  capacitor 

5^,  16-V  electrolytic  capacitor 

l^/tF,  SO-V  tantalum  capacitor 

A-pF,  50V  tantalum  capacitof 

LM339  quad  comparator 

14^in  DIP  socket 

LM31 1  voltage  comparator 

2N2222,  NPN  switching 

transistor,  T092 
aprn  DIP  socket 
1N914  silicon  signal  dfodes 
LEDs,  colors  to  suit 
Fte^ay,  12*V,  75-mA  cdl, 

DPDT  3^  contacts,  socket 


2 
2 
2 

3 


QtiantHy 
Fig.  5  Fig.  6 
1 
1 
1 
1 
2 
1 

1 

1  2 

1 

1  1 

1 
1  1 

1 
1 
1 


3 
5 
4 
3 


Radio  Shack 
Number 

273-1385 

275^12 

170-1270 

270-739 

276-1101 

276r1771 

* 

276561 

272-1032 

2721030 

2721026 

272-1024 


2761712 
2761999 


2761617 
2761995 

2761620 
2761622 

275-206 


Terminal  strip,  barrier  or 

feedthrough,  8  contact 
25-kilohm  potentiometer, 

panel  mount,  and  knob 
20*kilohm  PCB  potentiometer 
l-megohm  PCB  potentiometer 
220-Ohm,  174-W  resistor 
1-kilohm,  1/4'W  resistor 
2-kilohm,  V4AN  resistor 
lO-kllohm,  1/4-W  resistor 
l6-kilohm,  1/4-W  resistor 
76kilohm,  1/4*W  resistor 
106kilohm,  1/4-W  resistor 
476ki!otim,  1/4-W  resistor 
l-megohm,  1/4-W  resistor 
Case,  about  5'  wide,  6' 

deep,  3' high 
Perftxjard  {cut  from  4Vt  * 

by  6',  or  make  PCB) 


1 


274-653 


1 

1 

# 

2 

2 

217^336 

1 

217-338 

1 

5 

6 

1 

3 

5 
2 

2 

2 

2 

2 

1 

2 

2 

27£>253 


2761394 


Miscellaneous  wire,  rotator  cables  solder,  terminal  pins,  ac  cord, 
grommet,  etc. 

*Note:  Parts  rvot  listed  with  R,S.  numbers  are  available  from  Dig! Key, 
Jameco,  and  other  mall-order  sources;  or  experiment  with  the 
nearest  available  valua 

Total  estimated  cost  with  new  parts:  $25  to  $35. 

73  Magazine  *  June,  1984     63 


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board  contains  its  own  nega- 
tive  regulator,  replacing  the 
low-voltage  zener  used  in 
the  quick^fix  versions,  as 
well  as  the  311  comparators 
and  new  input  resistors. 
Renrroving  the  IC  from  the 
original  version  permitted 
easy  substitution  of  the  im- 
proved circuit  Except  for  a 
power  lead  to  the  negative 
supply  and  an  input  lead 
from  the  direction  potenti- 
ometer, all  other  connec- 
tions  go  through  a  DIP  cable 
and  plug  into  the  vacated 
LM339  socket  As  the  sec- 
ond interior  photo  shows, 
the  new  board  mounts 
above  the  339  socket  and 
transistors  on  half-inch  pil- 
lars. The  increased  sensitivi- 
ty  to  small  knob  rotations, 
with  preservation  of  all  of 
the  quick-fix  benefits,  made 
the  installation  well  worth 
the  effort 

The  mode  of  construction 
illustrated  in  the  photo- 
graphs resulted  from  contin^ 
uing  experimentation  with 
the  circuitry.  I  do  not  recom- 


mend it  except  as  an  exam- 
ple of  how  noncritica!  dc  cir- 
cuits are  with  respect  to 
layout  Any  convenient  lay- 
out will  do,  including  possi- 
ble installations  inside  the 
CDE  rotator  cabinet 

These  design  improve- 
ments are  slight  overall  but 
they  may  serve  to  keep  a 
first-time  builder  from  grow^ 
ing  discouraged  in  the  pro- 
cess of  trying  the  automatic 
beam  aimer  Without  know- 
ing where  to  look  for  clues, 
the  source  of  anomalies  can 
be  frustrating.  However, 
K9AZG's  basic  idea  is  both 
sound  and  elegant  in  its  sim- 
plicity. So  too  were  his  mo- 
tives. If  you  know  a  sightless 
ham  who  needs  a  better  way 
to  control  his  or  her  beam 
direction,  follow  K9AZG's 
lead  and  build  a  version  of 
the  automatic  beam  aimer 
The  satisfaction  of  helping  a 
fellow  ham  get  additional 
fun  out  of  operating  will 
more  than  repay  the  small 
investment  in  easily-avail- 
able components  ■ 


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73  Magazine  *  June,  1984    65 


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Food  for  thought. 

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63  Hunting  iane 
Coode  VA  24S56 


Requiem  for  the  Tube 

This  pleasing  project  is  perfect  for  pentodes. 
It  could  be  the  last  time  you  use  them. 


Around   the   shacks   of 
most    amateurs,    one 

easily  can  find   numerous 
antique   oddball    electron 


tubes.  Most  of  them  are  too 
small  to  be  made  Into 
lamps  and  too  large  for  a  tie 
clasp.  But  stilt,  you  want  to 


dig  out  of  those  shoe  boxes 
those  nostalgic  reminders 
of  the  good  old  days  and  do 
something  with  them  which 


is  both  functional  and  at- 
tractive. Combining  the 
beauty  of  nature's  wood 
with  the  glass  and  metal  of 


^ 


4 

I 


High-power  pentode. 
73  Magazine  *  June»  1984 


Klystron, 


'^Family  scene. 


ff 


man  in  the  form  of  book- 
ends  is  a  good  exampfe 
which  should  please  even 
the  most  discerning  XYL. 

First,  you  need  to  visit 
your  local  lumber  yard  to 
purchase  six-inch  by  one- 
inch-thick  shelving.  (Even 
though  it  IS  called  1",  it 
measures  only  Va  "  thickj 
The  material  is  then  cut 
into  two  6  Vi  *"  and  two  4^/4  * 
lengths.  Then,  using  a  band- 
saw  and  chisel,  a  blind 
dovetail  mortise  is  formed 
as  shown  in  Fig.  1 .  Note  that 
the  dovetail  is  only  Vi" 
daep  so  that  it  doesn't  even 
appear  on  the  inside  of  the 
bookend.  Each  piece  is  then 
sanded,  and  holes  are 
drilled  for  the  tube  sockets. 
The  two  pairs  of  wood 
pieces  are  then  glued  and 
nailed  together  before  ap- 
plying stain  and  varnish. 

Next,  a  plate  is  attached 

-"Ste  Usl  of  Ad^erusitr^  on  page  114 


to  the  bottom  of  the  book- 
end  using  contact  cement 
This  plate,  which  keeps  the 
bookend  from  sliding,  can 
be  made  of  thin  aluminum 
or  wood  veneer. 

Finally,  the  tube  sockets 
are  screwed  down  into  the 
drilled  holes.  For  some 
large  tubes  such  as  the 
4400A  variety,  one  might 
simply  drill  the  5  holes  for 
the  tube  pins  and  then  glue 
the  tube  in  place. 

There  are  several  good 
candidates  for  old  tubes: 
medium-power  transmit- 
ting tubes  such  as  the 
4-1 25 A,  1625,  807,  and  24C; 
klystrons  such  as  the  2K25, 
2K26,  and  41 7 B,  which  look 
like  miniature  robots;  light- 
house tubes  such  as  the 
2C39,  2C40,  and  2C43;  and 
acorn  tubes  such  as  the  954 
through  959  series.  A  family 


ifote  F0R  riie£  socket 


Fig.  1. 


scene  of  tubes  with  two 
plate  caps  was  formed  on 
one  set  of  bookends  using 


the  RK-34  (father),  2C26 
(mother),  and  HY75A  or 
HY114-B  (baby)  tubes. ■ 


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Geff  N8CE 
51 7-628-6044 


73  Magazine  •  June,  1984    69 


Ken  Kohhoff  KdAXH/? 
1 103  Carlson 
ChGyenne  WV*  32009 


New  Orders  for  the  R-109 


Two  bucks  and  ten  nninutes  are  all  it  takes 

to  re-enlist  a  vintage  receiver. 


i « 


The  R-108,  R-109,  and 
R-110  FM  Army  surplus 
receivers  are  readily  avail- 
able, very  well  constructed, 
and  best  of  all,  inexpensive. 
They  are  broadband  FM  sets 
covering  20  MHz  to  55  MHz, 


depending  on  which  set  is 
used.  These  sets  can  be  used 
with  no  conversion  on  6-  or 
10-meter  FM,  They  are  fully 
tunable  over  their  full  range. 
1  have  had  good  results  us- 
ing  them   on   various   proj- 


ects, including  converting 
an  R-109  to  SSB  for  IOmeter 
use.  The  sets  are  very  sen- 
sitive, using  mostly  one-volt 
filament  tubes.  All  of  the 
receivers  I  obtained  came 
with  a  24-vo!t  plug-in  power 


25  2VDC 


1X21 


m 


'5000 


OUTPUT 
I33VDC 


'I 


•iOTE 

CUWClTOnS   ARE   IN  t^^. 


scncs-omvc  yisfutot 


F/g.  t.  Original  power  supply. 


l»ffUT 


LZ 


I'll 


Jf 


C3A 


5000 


*  iJlil 

euTfuf 


SHUNT -;)fttVf  VIBRATOn 

El 


♦Wtt 

Llii.ES^  OTHEHWISf  5«Cnni 
RESISTORS  are:  \H   OHMS. 
CAPACITORS   ARE   IN   ^^^. 


SERIES -tJftlVE   v«S«4T0fi 


fig.  2.  Power  supply  modified  for  12-14  voits  dc, 
70     73  Magazine  •  June,  1984 


supply  (PP-282)  which  draws 
about  4  Amps.  This  is  an  in- 
convenient voltage  and  cur- 
rent for  mobile  use  or  fixed 
operation  when  only  12 
volts  at  low  cun'ent  is 
available. 

Converting  the  24-voft 
plugrin  power  supply  to  12 
volts  is  easy,  quick,  and  in- 
expensive. The  only  part  re- 
quired is  a  Radio  Shack 
1-Amp,  40Ovolt  bridge  rec- 
tifier, catalog  number  276- 
1173,  at  $1.89.  This  plus  a  lit- 
tle solder  and  wire  is  all  that 
is  needed  After  the  conver- 
sion, the  unit  draws  only  1 5 
Amps  with  12-14  volts  input 

Power  supply  PP-282  ts  lo- 
cated in  the  receiver  as  a 
plug- in  unit.  Remove  the  re- 
ceiver from  the  case  by  tunv 
ing  the  six  hand  screws  45 
degrees,  then  pulling  the  re- 
ceiver out.  Loosen  the  three 
retaining  screws,  slide  the 
retaining  bar  over,  and  pull 
out  the  supply  by  the  wire 
handle.  Remove  four  screws 
to  gain  access  to  the  supply. 
Two  are  on  the  lower  back 
and  one  each  on  the  top  and 
bottom  of  the  front  The 
bottom  plate  is  then  re- 
moved and  the  upper  cover 
pulled  off. 

Under-tfie-chassis  changes 
are  covered  first  The  com- 
ponents are  conveniently 
marked— thank  you,  US  Ar* 
my.  Check  each  step  as  you 
proceed, 
1)  Solder  a  wire  across  the 


nARSEN  ANTENNAS  TRAVEL 
IN  THE  FAST  LANE 


Race  car  communications 
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under  some  of  fhe  worst  conditions. 
Split  second  decisions  require  reliable 
^gnals  at  exceptionally  Ngt)  speeds. 

That's  wtiy  Larsen  Antennas  are 
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antenna  high  conductivity  to  assure 
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communicating  —  not  heat 

That  full  measure  of  performancB 
goes  into  our  product  integrity  too 
With  a  no  nonsense  warranty  that 
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So  whether  you7e  following  the 
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you'll  find  Larsen  Antennas  will  keep 
you  ahead  of  the  situation  with 
dependable  performance.  Mkyour 
favorite  Amateur  dealer  to 
demonstrate  how  you  con  hear  the 
difference  with  Larsen  Antennas. 
Write  for  our  free  Amateur  catalog. 


^322 


Uirsen  nntenncis 


IN  USA-  iarsBft  ElectFonicir  Inc. 

1i6ii  iV.£  SOth  Avenue    RO.  flo*  i799    Vancouver  WA  98668    Phone:  206-573-2722 

tN  CANM^A:  Canac^Qn  Lanen  itectronfcs.  ltd 

263  f .  nth  Avenue,  Unit  iOI 
)fyncotJvef,  AC.  VST2C4    fihorm  6Q4'672-a517 

KHrocf*  li  a  wglffered  tfodemarlt  ot  Larsen  Electronics.  Inc  bi  U.SA  (Vid  Canaciix 
KOlrod*  It  a  reiukstefeo  trodemart  of  larsen  Ele<rtTOnlcs,  Inc.  In  USA  and  Canada. 


^See  List  ot  Advertisers  on  page  V4 


73  Magazine  •  June,  1984     71 


R-U)9  10-meter  FM  receiver  with   internal  power  supply 
PP-28Z 


large  1.6-Ohm   resistor,   R2, 
shorting  it  out  of  the  circuit 

2)  Disconnect  the  three 
wires  (2  v^How,  1  red)  from 
terminals  4,  5,  and  6  of 
power  transformer  T1 , 

3)  Solder  the  yellow  wire 
formerly  on  pin  4  of  Tl  to 
pin  6  on  vibrator  socket  X3. 

4)  Solder  the  yellow  wire 
formerly  on  pin  6  of  Tl  to 
pin  1  on  socket  X3. 

5)  Solder  the  1-Amp,  400- 
volt  bridge  wires  marked  ac 
to  temninals  4  and  6  on  Tl. 


6)  Solder  the  wire  on  the 
rectifier  marked  —  (nega- 
tive) to  ground,  pin  7  of 
socket  X3 

7)  Solder  the  red  wire 
fomierly  on  pin  5  of  Tl  to 
the  +  (positive)  wire  of  the 
rectifer. 

8)  Tum  the  supply  over 
and  make  two  changes  to 
power  plug  XI , 

9}  Move  the  bare  wire  from 
pin  6  of  XI  to  pin  5  of  XI. 

10)  Solder  a  wire  from  pin 
3  of  X1  to  pin  2  of  XI 


Bottom  view  vi/kh  the  nyxlified  power  supply  in  place. 


11)  Reinstall  the  power- 
supply  cover  and  base  plate 
and  plug  the  unit  into  the  re- 
ceiver; tighten  the  retaining 
bar  screws. 

12)  In  the  receiver,  be  sure 
that  switch  SI  is  in  the 
6n2/24"Volt  position. 

13)  On  the  outside  of  the 
receiver,  install  a  jumper 
wire  into  the  Receiver  Con- 
trol plug  between  pins  J  and 
H.  Leave  the  insulation  on 


the  center  of  the  jumper 
because  100  volts  lives 
there. 

14)  Put  the  receiver  back 
into  the  case  and  apply  12- 
14  volts  dc  plus  to  pin  B, 
negative  to  ground,  pin  C, 
on  the  power  plug.  That 
completes  the  conversion  to 
12-14  volts  dcB 

Author's  note;  The  powersupply 
converskin  also  wodcs  with  the 
RT-70  6-metaf  FM  Iransc^lver. 


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TORS -PRE- ASSEMBLED  ANO  TESTED.  24dB  GAIN 
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warxH 


72     73  Magazine  •  June,  1934 


wternatiqwal) 


Bach  month,  73  brings  you 
ham-radh  news  from  around  the 
world.  In  this  cotlection  of  rs- 
ports  from  our  foreign  corre- 
spondents, we  present  the  lah 
est  news  in  OX,  contests,  and 
emnts,  as  weff  as  keep  you 
abreast  of  the  technical 
achievements  of  hams  fn  other 
countries, 

if  you  wouid  i/fie  to  contribute 
to  your  country's  coiumn,  write 
to  your  country's  correspondent 
or  to  7Z:  Amateur  Radio's 
Technical  Journal,  Pine  Street, 
Peterborough  NH  03458,  USA, 
Attn:Jaci^  Burnett. 


ARGENTINA 

Atb0fto  Sitva  iuroz 
Qtvpo  Arg^ntino  tfe  CW 
Cartos  Ditr0f  2025 
1SS4  Longcftamfia 
Buenos  Aires 
Arg^ntinA 

Ctrfos  ViMnrt9  CMmeiro  PYrCC 
Rum  AfonsG  Pwta,  49rTQf 
20270  Rio  <f9  Janetro 
BraiH 

THE  LUSZJ  SOUTH 
SHETLAi4D  ISLANDS  QX^EDfTlON 

Pushed  by  thie  oame  marveloua  fm- 
pulae,  the  spirit  of  radio  amateurs,  the 
GACW  (CW  Ardent  I r>e  Group)  SFX^naored 
the  LU3Z1  DXpedniofi  lo  the  South  Shet- 
land fslar>ds.  following}  the  success  of  the 
previous  LU7X  {l^^  and  LBD/X  (-1982]  ex- 
psditlonB  lo  the  States  Islands  for  the  CO 
WOfldwda  OW  GontasL 

AwBfe  of  ita  responalWI^ty.  the  GAGW 
group  opefetors  for  such  OXpeditions  afe 
chosen  from  among  the  most  rel  iable  and 
skJliful  DX  men  Lo  the  group,  and  the 
sfHendfd  results  In  former  and  presefit 
D?<peditiofts  show  this  lo  have  be&n  done, 
lor  opefating  capabilities,  techniques, 
rules,  and  ethics  were  respected  to  the  ut- 
moftt. 

An  expedlitfort  to  th«  Antarctic  conlk 
fienf  is  extremely  ^tperaive.  tMJt  ttM  care- 
fully planned  project  of  Jor^e  F.  Vrsalo- 
vlch  LU7XP  was  approved  by  the  Oifecion 
Maciofval  del  Ante  ret  Ico  (Antarctic  Nation- 
al M$nAg#fn6ntl  which  ruCes  aFF  activiti^ 
oonosming  the  Antarctic  continent  In  Af* 
gentlna— the  Inatltuto  An t arc t Ico  Argenti- 
no  (Argentine  Antarctic  Institute)  In 
charge  of  ail  scienllfic  Invts^ligations 
being  one  of  Its  most  imponant  brarbcheis. 

SOp  ullra^Kpefislve  transportation  and 
togtstlcal  hefp  were  assured  by  the  Argen- 
tine governrnent;  other  problems  were  our 
rttttponslbiUtyt 

Art>erto  LUIDZ  started  the  Job  to  Qet  all 
that  was  mlssln<g:  Oscaf  Rosity  LUSDVO 
brought  a  rotator,  Jorge  Alrrkoyraghl 
UJ1EWL  ooi  a  3.&^W  genmator  fion^  the 
Aff  Force,  hjttl  and  trans  port  at  ion  to  the 
^OokA  w«ee  the  job  of  Benjamin  C.  Cavat- 
lln   LUdEMB,    togethef    with   a    secoruj, 


4wB-kW,  generator.  A  S4-fneter  lower  caine 
from  LliflDQ,  &  3-e1ement  trl bander  Palonv 
bo  beam  was  the  contrlbistlon  of  Salvador 
Parombo  LU3FG,  and  Cartoe  Rodriguez 
LU2DFX  thought  his  own  transceiver. 
Ronaldo  Sllva  I.U3EDZ  chocked  and  pre- 
pared the  genera tora, 

LU7XP.  LUaDQ.  and  LU1DZ  were  to  be 
the  team,  bul  elmoat^ast-momenl  rea- 
sons stO{3ped  LUTXP  and  IJU8DO  in  Argefh 
tlna.  Ronaldo  Silva  LU3E0Z  became  the 
laet-minute  solution,  and  It  now  became  a 
two^man  teamu 

On  board  Ihe  ship,  the  Bahfs  Psrafso, 
Alberto  and  Ror^ldo  left  Buenoa  Ain^ 
January  S.  1983,  reaching  Potter  Gove  on 
25th  of  May  Island  elghl  days  later,  after  a 
perfectly  normal  trip  except  for  a  storm  In 
Drake's  PassaiQe  which  kept  some  in  bed 
for  2*  hours,  seasick T  f  fom  January  ^3  to 
16,  helicopters  and  boats  landed  all  equip- 
ment to  go  to  the  scientific  station,  Ten- 
lente  Jubany. 

Ronaldo  LUSEDZ,  meehanics  king,  as- 
sembled generators,  tower,  and  all  during 
five  long  days  of  steady  ra^n  and  snow  and 
40*  (0  eo^kph  wlnd^  wtth  gusts  ta  90^  A 
one-hour  period  was  all  the  time  Ronaldo 
could  stand  before  getting  shelter  for  rest 
again. 

And  then,  at  1315Z  January  16»  CW  on 
20ni,  came  the  first  contact,  with  W5RK, 
followed  by  CP7GM,  LU9AJC,  and  LLTTXP. 
The  first  SSB  QSO  was  with  LUJUS/mo- 
btle  on  January  281h,  and  then  came 
LU2CM/moblleH  LU1DBQ,  LU4QD,  and 
othersu 

Puffng  the  seventh  day  of  operation, 
fttlef  a  IT-hour  pi  leu p,  excessive  eai- 
phone  use  caused  Alberto  LUtQZ  trouble 
and  fatigue,  and  the  Teniente  Jutxany  sta- 
tion physjcian  had  to  stop  CW  operatior^ 
for  a  wtiile,  Alberto  then  had  a  two-day 
SSB  operation. 

During  a  rest  period,  Daniel  VerganI, 
chief  tiotanist  of  tt>e  Mafmmatlan  Study 
Plan,  took  Ofwrators  on  a  tioat  trip  near 
Mariana  Cove.  The  t)oat  came  upon  four 
Jubarta  whales,  and  Pablo  LJumberg,  the 
diver  managing  Ihe  boat,  happjiy  got  to 
not  more  than  ten  or  fifteen  meters  from 
the  whales,  A  possible  emergency  dJve  for 
all  into  frigid  water  was  rather  worrying] 

An  FT-101E  transceiver  and  an  FL- 
2l0dZ  amplifier  held  up  perfectly  for  the 
very  hard  30-day  operatioa  alor»g  with  a 
Bencher  key  and  &n  Auteh  manipulaior 
with  CMOS  memory.  SSB  operations  were 
ereat  fun,  loo;  discipline  and  respect  for 
rules  and  ethics  were  perfectly  ot^vlous. 

Umm  baitda,  surprisingly,  were  very 
hard  to  of»erate,  with  QRU  level  close  to 
S5,  and  S7  on  20  meters.  This  was  true  for 
wee-ks,  which  will  give  you  an  Ideal 

Openings  to  Z3  and  7  MHz  coincided 
with  tn«  best  conditions  on  14  MH2.  so  the 
question  was;  do  a  good  job  on  Ihe 
SO^meter  band  or  try  some  problematic 
OSOs  on  lower  tiends?  Conditions  on  20 
were  good  until  0430Z,  tnit  then  trans- 
horizon  radar  came  on>  SB  plus  40!  From 
daybreak  to  afternoon,  until  2QQ0Z  bands 
were  closed,  with  few  openings  to  10  and 
15  meters.  Only  5  good  openings  on  28 
MHz  to  Eurofse  ftJid  North  America,  not  so 
good  to  Africa  tnd  w»t  Asia.  Funny,  dur^ 
Ing  two  nl{}hts  on  IS  meters  and  Ciose  to 
0400Z,  we  could  OSO  Asia  but  sigi\ats 
didn't  ever^  ri>ove  the  S-meterf  (Dn  20 
meiefs,  from  090GZ  to  11(X3Z,  Asia  was 
worked  with  the  bedm  to  the  weAl)  From 


Ttm  hsficopter  moved  sit  squipfTmot  £iefwa«/T  bereft  ami  ship. 


02302  to  0500Z,  the  antenna  tDeamed  west 
of  America  presented  stror^g  ect>o  trou- 
bles; the  same  to  Oceania,  A  Tahiti  signal 
came  30  d 6  over  9  no  matter  where  the  afi- 
tenna  was  C>e3med! 

On  20  meters,  an  open  road  could  be 
found  by  looking  for  band  noise;  between 
330^  and  30°,  noise  showed  po&sibltltles; 
due  south  was  absolute  silence. 

For  Alberto,  a  160-melef  fover,  the  hap- 
piest moments  were  when  the  57  stations 
In  South  America,  Central  America.  North 
America,  and  Europe  all  QSO'd  160 
meters! 

Durimg  fMf  periods^  an  automatic 
beacon  opera  led  CW  at  28277,  30  Watts* 
dipoie  antenna,  for  Ionospheric  observa- 
tions. It  was  exciting  to  hear  the  LUIUG 
5-Watt  beat^Tn,  vertical  antenna.  282S6 
kHz,  t>ack  In  General  PfcoCrty.  province  of 
La  Pampa,  124  meters  above  sea  level  (a 
IZBYTandELBSI, 

Exciting,  too,  was  the  visit  of  the  WiHf- 
waw,  Willy  de  Rose's  (VK9XR/MM)  9-metef 
little  yacht,  a  traveller  of  all  seas.  He 
lunched  with  Alberto  but  had  to  leave 
quickly— a  storm  coming. 

Durir>g  \fm  28-day  operation,  20,125 
QSOs  were  made,  17,B&4  in  CW  and  2^471 


SSB,  Totals  tjy  bands:  1 60m— 57,  dOm^ 
204,  40m-1,105.  20m— 8,ei§,  15m— 6,414, 
and  10m— 3,429.  Six  continents  and  123 
countries  were  worked.  THE  QSO  was  on 
100m  wah  K7POS/MM  sailing  the  North 
Pacific  off  the  Alaska  coast!  A  509  RST 
and  even  a  short  chat  was  possible! 

A  Paiombo  tr [bander  was  used  for  high 
bands:  on  40m,  SOm,  and  160m  an  inverted 
V  did  well,  BOm  with  the  V  at  15  meters 
high,  and  the  others  with  the  V 13  meters 
high. 

The  Teniente  Jubany  generator  pow- 
end  ttie  station  most  of  the  time;  our  own 
generators  were  used  only  when  power 
stopped  from  the  base,  from  QSOiK  to 

oaooz 

During  pi  leu  pa,  as  many  as  1B6  QSOs 
were  realized  in  one  hour^  but  after  we  got 
to  12.000  QSOs^  pHeup^  decreased  and 
the  rate  carrie  down  to  120  QSOs  per  hour, 
tops. 

Ending  Kme  came,  and  in  a  hurry  ail 
was  disassembJed  because  Ihe  ship  was 
neer  the  beach  and  all  ecjulpment  had  to 
be  packed  and  taken  aboard,  in  spite  of 
strong  winds  and  night  coming.  But  anxle^ 
ty  lo  go  home  brought  new  strength  to 
Alberto  and  Ronaldo,  and  in  at>out  ten 


LUIDZ  on  r/M  key  tt  LU321. 


73  Magazine  •  J  una  J  984    73 


hours  Ihgy  wore  aboard,  going  back  home 
after  their  53-day  a[jventure.  a  marvelous 
experience,  and  once  again  an  expedition 
proved  GACW's  capab41itte«  in  such 
cased  with  hrftt-class  results. 

Our  special  graiiiude  lo  LietJtenant 
Goionel  Luis  Font  ana  of  the  ON  A.  to  allin' 
atltutlona  who  K&iped  us.  to  friends  «nd 
membefs  or  the  GACW,  ar>d  to  all  oper- 
atora  who  helped  U3  with  their  patience, 
understand! r>g.  &nd  support,  thus  makir>g 
the  LU3Z]  South  Sheiiand  Isiands  DXpedi- 
tlon  a  success  to  be  ren^embered. 

OS  La  were  to  be  deUvered  to  GACW, 
Carlos  Dihet  2t)25,  1854  Longchamps, 
Buenos  Airea,  Ajgnntlaa^AJt  address 
well  kiM>wn  to  DXers. 


^k^ 

^r^* 


AUSTRALIA 

J.  E  Joyce  VK3YJ 
44  Wmn  Sf/wi 
A/font  3018 
Victoria 
Auntr&tta 

There  are  many  contests  on  the  Aftm- 
teur-fadlo  bands  throughout  the  year  and 
Australia  has  its  fair  shafe.  writh  rDOSt  ol 
us  entering  these  contests,  either  serious- 
ly or  in  a  tighthearted  manner. 

Howevef ,  there  is  one  contest  In  Austra- 
tia  that  la  rvever  entered  into  with  a  Mlp- 
par^  or  H^t hearted  manner  t>ecause  of 
what  It  represents. 

I  am  speaking,  of  course,  of  our  Remem- 
brance Day  Contest,  held  on  the  closest 
weekend  to  August  15  each  year  to  honor 
the  Australian  amateurs  who  fost  Iheir 
tbtm  In  WVyil,  This  date.  August  tS,  has 
special  significance  for  us  as  it  was  on 
that  day,  In  1345.  that  all  WWII  hostilities 
ceased  In  the  Pacific  area. 

The  trophy  Itself  la  of  typical  amateur- 
radi4><oriented  design,  featuririg  a  yagi  arv 
tenna  mounted  on  a  tower.  Tin  is  trophy  ^s 
perpetual,  being  awardef^  each  yeaf  to  the 
winning  division  of  the  WIA  (WIrelesi  in- 
atkuteof  Austral  I  aV 

As  this  is  a  local  competition,  wltt^ 
points  being  scored  only  for  contacts  be- 
Iween  Australian  call  areas  plu$  New  Zea- 
fand  (e.g.,  VKI  lo  VK0  and  ZU  on  all  ama- 
teur bands.  It  does  create  a  lot  of  friendly 
rIvaJry  between  each  state's  amateurs. 
wllf%  the  winning  state  or  division  hailing 
the  honor  orf  keeping  the  trophy  at  their 
headquarters  until  they  hand  It  Over  to  the 
rvext  winning  division— but  keeping  It,  of 
course,  If  they  win  11  again.  Their  terrrt  as 
trophy  holder  la  not  forgotten  as  each  win- 
ner has  its  name  engraved  on  a  metal 
shield  attached  to  ttie  tiase  ol  the  tropfiy. 

The  reigning  champions  of  the  RD  Con- 
tsat  are  the  South  Australians  (VK5),  with 
their  latest  win  In  19&3  maKing  il  ten  wins 
out  of  the  last  twelve  years.  A  remarkable 
achievement  consit^ing  that  fhey  are 
competing  against  a  much  larger  amateur 
population  in  |h©  eastern  stales,  e.g..  VK2 
or  VK3. 

We  have,  over  recent  years,  had  Hew 
Zea3ande>rs  also  Sfiterlng  into  this  eorrv 
petFtion  with  a  lot  of  Interest  but,  as  yet, 
oo  luck  In  winning  this  trophy.  Also  In  this 
category  are  the  P29  (ex-VKS  Papua  New 
Guinea}  stations. 

Certificates  are  also  awarded  to  the 
fOp-scOflng  stations  in  each  division,  with 
th«  winning  division  beirig  decided  by  the 
formula:  Total  points  times  weighting  lac- 
tor,  divided  by  tciat  divisional  llcer>ses> 

Each  division  is  divided  as  follows: 
•  VKl^Austraiian  Capita)  Teffttoriee 

74     73  Magazine  •  June,  1964 


Landing  tmaeh,  600  mBt&rs  from  the  QTH, 


QTH  $it0  at  the  TBniente  Juti^any  station. 


•  VK2— New  South  Waled  (plus  Norfolk 
Inland,  IjQcd  Howe  Island) 

•  VK3— Victoria  (and  remaindef  of  Aus- 
tralian Antarctica) 

•  VK4— Queensland  (and  offshore  Is* 
lands— Willis  Ar\6  Thursday) 

•  VIC&— South  Australia  (and  Northern 
TerritOfy-VK8) 

•  VKS— West  Australia  (and  offshore  IS' 
lands  Including  Cocos,  Keeling,  Christ* 
mas^  Heard,  and  part  of  Australian  Antarc* 
tica) 

•  VK7 — Tasmania  (and  Macquarle  Is* 
land) 

The  VKfl  Is  by  far  the  most  sought  after, 
as  a  contact  with  them  gives  you  the 
greatest  single  number  of  points. 

In  recent  yeai^  it  has  been  the  policy  of 
ttie  WIA  to  have  some  rh^itabie  person 
open  this  contest.  So  Im,  we  have  had 
three  of  our  Prln^  Ministers  honoring  us 
with  their  presence,  the  latest  one  being 
the  Rt.  Hon.  Malcolm  Eraser,  in  197&.  We 
also  have  had  two  Miniatera  of  Communi- 
cation arKJ  several  State  Governors,  with 
Mr  Richard  E.  Gutler,  Oy.  Sec,  Gen.,  ITU. 
doing  honors  for  the  occasion  in  1979. 
showing  that  members  of  our  government 
and  other  rM>table  dignitaries  hold  this 
contest,  arxj  wftat  it  star>ds  tot.  In  the 
highest  esteem. 

Listening  for  this  contest,  you  won't 
find  the  uaual  QRM  all  over  the  banda  that 
we  hear  with  some  of  the  larger  contests, 
for  we  have  only  approximately  14.000  lil- 
censed  amateurs  In  Australia,  with  a 
percentage  of  these  reslricled  to  VHF  and 
above.  Atso,  not  ali  of  the  remaining 
amateurs  are  Interested  In  contests,  so  it 
malces  it  a  real  relaxed  style  ol  operating, 
with  time  to  have  a  qu^ck  chat  with  old 


frteods  or  overseas  stations  looking  for  a 
St^Oit  QSO  or  new  country— particularly  In 
our  early  hours  of  the  morning  when  any 
contact  to  keep  you  awake  Is  very 
welcome. 

K  CALLS 

The  K  can  te  a  special  license  introduced 
In  1960  to  cater  to  those  amateurs  who 
hold  two  ilcensesn  namely  the  Novice  and 
the  Umited.  There  has  been  an  abrvormall^ 
ly  with  this  class  of  license  which  our 
DOC  (Departrrient  of  Communications) 
has  recUfied  this  year. 

Previously,  the  problem  had  been  that 
as  a  Limited  license-holder  able  to  oper- 
ate on  all  banda  above 50  MHz.  you  did  not 
have  to  pass  any  CW  teat  gWlrig  you  a 
very  technically-minded  peraon  who  has 
passed  the  equivalent  of  our  fyll-cali  ll> 
cense  in  the  theory  aspect  but  has  Called, 
or  has  not  tried,  the  test  on  CW  at  10  wpm. 
sef>d  and  rece^. 

The  Movlce  license  gives  you  accsss  to 
the  HF  bands  of  00, 1&.  and  10  meters,  but 
to  paas  thla  teat,  you  need  CW  at  5  wpm, 
send  and  receive,  so  it  is  possible  tor  an 
amateur  here  to  hold  two  licenses,  one  for 
hii  Novice  CAM  starting  with^  e.g.,  VK3  -N. 
-V,  Of  -P,  and  bis  Limited  starting  with 
VK3  -X  -Y,  or  -Z  The  result  was  much 
confusion  on  the  bands. 

Thts  caused  our  DOC  to  create  the  K 
caJl.  giving  trie  holder  of  t>oth  tlcenses  the 
option  ol  usir^  (but  not  rsQuI ring) orte cam- 
aign  only^  starting  with  a  Kt  e.g.,  VK3K-  -. 

The  problem  was  that  as  a  Novice  he 
could  operate  on  CW,  but  as  a  Limited  he 
could  not  operate  CW  on  Ifre  higher  fre- 
quencies. The  DOC  has  now  granted  the 


holders  ot  this  special  call  the  privilege  of 
CW  operations  above  50  MHz. 

So,  If  you  hear  a  '^KSK  operating  on  the 
higher  frequencies  using  CW.  please  slow 
down,  as  his  CW  speed  may  be  only  5 
wpm.  Some^  with  their  keyt>oards,  will  be 
able  to  operate  at  highef  apeeds,  but  as 
our  exam  test  Is  with  a  hand  key,  theif  ex- 
pertise on  the  keyboard  Is  to  oo  avail  untlf 
they  pass  [tie  tiand-^ait  test  to  gaJn  thai 
fuH-call  license. 


BRAZIL 

Carfos  ViannB  C^rnmro  PYfCC 
Rua  Afomo  Perm,  ^ffOl 
20270  Rio  de  JeneirQ 
Br^ii 

Qarsan  RtBStn  PYIAPS/PYTAPS 
PO  Box  721 T8,  Copacabana 
20000  Rio  ae  Jamiro,  RJ 

anur 

HEW  PREFIXES  IN  BRAZIL 

SJnce  June,  19/5.  Brazilian  states  have 
had  a  special  prefix  so  that  an  Immediate 
ktefHl  fleet  ion  was  possible  for  radio  ama* 
teurs  in  Brazil  as  soon  as  the  call  was 
given.  Brazil  has  nine  regions  and  26 
states  and  territories.  ThB  PY  prefix  was 
changed  to  PP,  PT,  PR,  PS,  PW,  PV,  or  PU 
In  certain  rei}ions.  according  to  the  num- 
ber of  states  in  eacfi. 

To  Identify  C^ass  C  radio  amateurs  (at- 
lowed  only  phone  mode  on  eo,  160,  VHF 
and  UHF,  and  CW  mode  on  ali  bands  ex- 
cept 20  meters),  three-letter  suffixes  start- 
IrkQ  with  W,  X,  and  ¥  were  in  all  prefixes 
now  in  use. 

Also  wfth  the  PY§  prefix  tor  Brazilian 
ocean  islands  and  OXCC  ''countries"  (Fer- 
nando de  Noronha.  Trindade,  and  S.  Pe- 
ter(S.  Paul),  this  sure  was  a  hit  with  prefix- 
hunters  all  ovm  the  world,  deilghted  with 
new  poasfbllities. 

But  what  couldn't  be  imagiried  by  Bra- 
zilian author  11  tes  was  the  tremendous  run 
to  Class  C,  alr^e  VHF  f aclfltles  and  conve- 
niences and  a  "rio-code"  license  were  a 
very  strong  appeal  to  former  CSsrs  and 
otfwrs. 

VHF  being  their  only  gt:m\.  almost  no 
one  cared  lor  HF  restrictions,  and  so  VHF 
operators  came  by  the  thousands,  thus 
"blowing  up"  the  system  by  using  up  all 
"thro  toiler  combirtatiorts  started  by  W, 
K  and  Yf  So  a  new  law  has  been  published 
in  Brazil,  modifying  Class  C  prefixes  and 
creating  a  new  curiosity  for  preflx- 
huniers. 

From  February  13^  1984,  Class  A  and  B 
radio  amateurs  {except  tor  Amapa  Ter* 
ritory— PU8,..J  will  continue  with  tt*eir 
actual  call  letters,  prefixes,  regions,  and 
sufflKes  aa  before;  Class  A  end  B  radio 
amateurs  in  Amapa  tertHory  will  be  PY6, 
like  fn  Para  State. 

ImpGTtanl  modi  Neat  Ions  con%a  to  Ciass 
C  operators  now  all  urKJet  PU  prefixes 
from  1  to  9,  according  to  the  region  they 
belong  to.  No  more  PP,  FT,  or  PY,  but  only 
as  follows: 

•  1   Regton— PUl— Rio  de  Janeiro  and 
Esptf  Ito  Santo  States 

•  2    Heglon~PU2— Sao    Paulo,    Goias, 
and  Federal  District 

•  Z   Region— PU3— Rio  Grande  do  Sul 
Stale 

•  4  Region— PIK— Ml nas  Gerala  Btate 

•  5  Region— F*U5— Parana  and  Santa  Ca- 
tarlna  States 

•  6   Region— Pl>e—&ahb  mnd  SergSpe 
Statea 

•  7     Region- Plf7^Pemambuco,     Ata- 


QCiftB,  Para(tia,  Rio  Grand«  do  UqtXB,  «nd 
Csara$t«tM 

•  a  Regroii— PU8— Para.  Amazonas.  Ma- 
rannao,  Plau*,  Acre,  Rondonia,  and  Ama- 
pa  States,  and  Rorafma  Tarrltory 

•  9  Region— PUfi—Mflto  G rosso  and 
Mato  Grosso  do  Sut  Stales^  PUt— Ocean 
IslanSs  FemarKto  ^  Noronha,  Trjmlade, 
S.  Patflr/S.  Paul  Islands 

So  wtiat'a  going  to  happen  from  aow 
on?  Well  NEW  Class  C  radio  amatmj<s 
wit)  tiave  their  calh  according  to  PU  prefix 
d<etemiiriattOfi5;  afready  pteUted  radio 
amateurs  a  tew  at  a  time  wlii  be  called  to 
DENTEL  (Ihe  Brazilian  Tel eco^rifnunl ca- 
tions National  Oepadmant)  and  will  ham 
their  pmlixeB  changed  according  1o  tfm 
new  law.  This  wilt  take  sofne  tifrte,  for 
Class  C  operations  fn  Brazil  are  a  great 
majority  spread  all  over  our  bin  oOiintry; 
this  will  maan  trouble  for  our  authof^tfes. 

Du«  to  this  new  law,  ttie  PUBBt  opera- 
tion from  Macapa,  In  Amapa,  took  place 
under  a  ZYBBI  call  (QSL  information  to 
FVS6I  as  anrfOunoedOv  a  last-minute  change 
•Hhough  ihe  OX  News  sheet  aod  others 
had  f  pread  trie  worcL 

CW  operators  will  imve  a  better  chance 
to  OSO  the  new  PU  Class  C  since  regula- 
llor\s  allow  them  almost  all  QW  barnls  ex- 
oef>t  20  meters! 

de  PYTCC 

MATEURS  VISFT 
PR££JOENT  FtauOAEOO 

Directors  of  the  Brazilian  Amateur 
Radio  LeaQMe  (LA9RE)  were  t^irKHy  received 
In  the  Palace  by  the  Provident  of  BiazH, 
Gerveraj  Jo4:q  Bapttsta  Flguelredo-  TakinQ 
tlie  o|i(9on unity,  they  invito  him  to  head 
the  fir»t  meeting  of  ttie  4th  Brazilian  Gorv 
vanttofi  hatd  in  the  city  of  Bra  si  Ha  to  cele- 
brate the  5Dth  annlversafy  of  tKe  League. 
The  audience  lasted  about  tfiirly-five  min< 
utoi^  and  the  President  asked  questions 
about  amateur-radio  activities  in  BrazJi. 
Finishing  the  audience,  the  President  sur- 
prised everybody  wt>an  he  said  that  he 
also  expects  to  be  an  operarof  after  his 
time  as  President.  In  fifty  years  of  ttie 
League,  it  was  the  first  tfme  that  a  group 
of  operators  was  received  by  a  Brazilian 
President. 

THE  DEATH  OF  W4KCF 

With  deep  regret,  the  Buffetfn  edited  by 
the  Brazilian  League  recorded  the  passing 
of  VN:tof  C.  C^ark  W4KFC,  President  ol  the 
Amerte^n  Radio  Re^ay  League.  The  death 
of  Vic  brought  a  painful  sense  of  loss  to 
alt  amateurs  in  the  world. 

HEDfTATlON 

Inge  Tobias  de  Aguiar  PY2JY  Is  well 
hiiown  as  tt^  controller  of  tf>e  Brazilian 
Young  Ladies  Net,  meeting  every  Wednes- 
day on  14.24B  MHz  from  1 900  to  2l00  UTC. 
One  nigfil^  atx>ut  two  years  ago.  while  in  a 
hoipital  after  a  surgical  operation,  the 
consaquer^ces  of  which  were  not  then 
known,  ahe  wrote  on  a  piece  of  paper  this 
maditatlon,  whJich  I  will  tran»itte,  trying  to 
give  the  same  meaning  as  it  had  \n  For- 

tUpUOTC 

My  Qod,  it  i  diB  now,  /  wffi  dio  happy 
Bw^ause  t  knew  frfendshfp, 
Kifidness.  coffabo/ation,  and  a/rruitm. 
Siftca  my  first  day  as  an  amataur. 
Up  to  now.  nobody  disappointed  ma- 
From  South  to  North,  from  Wast  to  East, 
t  have  M^ndS  and  wh^t  IhBy  hmAr  ma, 
TiMy  become  happy  to  meet  ma  again. 
A  lot  of  iham,  f  miU  navar  know  pefsorratly. 
Oniy  through  thair  QBLs  or  tatters. 
Maarfr^  thair  voices 
i*m  happy  wtmn  t  can  raccgnfia 
A  taw  of  tham  wttom  i  had  krtomn 

partonafiy 
tn  aomaplace  in  the  wortd. 


Thay  rvi^ived  me  tike  a  sister. 
And  we  Bn/oyed  oorsetves  wtfh 

happfmsa, 
Uka  very  ofd  good  friends. 
Wh$n  t  partfcipated  in  any  emergency 

operation, 
t  nnwf  sfayed  sio/m. 
A/ways  /  had  Mends  who  h^ip^  me. 
I  could  undarstand  ttwt  amateur-radio 

activity 
fs  afw^y^  ff lands  working  together. 
When  I  needed  haip, 
t  Foeeived  it  imrmdiatsty. 
Nice  friends! 

T0b0an  Amateur  is  to  live  with  happihess^ 
H^spirtess  to  haw  $c  many  friends 
On  whom  yoa  can  count  atwaya. 
Happiness  to  have  the  chance  to  tietfl 

someone  with  difficuittes^ 
Sadness  when  you  rwed  to  transmit  bad 

ftews. 
Happiness  to  be  acQi/ainted  to  another 

friends 
Happfness  to  meet  someone  again. 
HapplnBss  to  have  the  chance  to  heip 

impartiaiiy. 
Artd  i  am  happy  because  /  am  sure  / 

performed  my  duty. 

d#  PY1APS 


GREAT  BRITAIN 

Jett  Maynard  G4BJA 
to  Churchfields 
WidnasWABSRP 
Che&hire 
England 

THE  UK  SCENE 

I  wonder  at  the  continuin>g  ingenuity  of 
equipment  designers  to  produce  more 
and  more  exciting  products  that  do  not 
really  offer  any  significant  improvements 
in  performaiM^  In  reiatlofi  to  their  fun- 
damefital  job  (or  principal  function)! 

The  prime  example  of  this  must  t»e  in 
the  ongohnQ  development  of  radJo  receiv- 
ers lor  th«  efithu^iastlc  listener  (rather 
tfian  the  hi-fi  enthusiast  or  casual  observ- 
er). There  do  not  seem  to  have  been  any 
significant  strides  In  performance  recent- 
ly. (Performance,  that  is,  meaaured  by  way 
of  sensithrity.  signaMo-rwise  ratio,  inter- 
modutatiofv  distort  ion.  or  whatever^  And 
yet  the  r^aw  models  continue  to  hit  the 
streets  a^d  continue  to  persuade  large 
numt»ers  of  listeners  (o  part  with  large 
quantities  of  hard-eamied  cash.  The  most 
recent  model  is  the  Sony  ICF  7600O  syn~ 
thesizod  fun<:overage  shortwave  receiver 
(with  Band  2  Fl^  coverage  )ust  in  case  you 
get  fed  up  with  the  ORN  and  OSB). 

J  have  had  a  Sony  tCF  2001  for  atKHJt  18 
months  Sine*  I  acquired  it  for  a  trip  to  N** 
gerla.  Whilst  in  that  country  I  wanted,  ol> 
viously^  to  be  abJe  to  tune  In  to  BBC  World 
Servica  (tf  only  to  remind  myself  that 
home  was  stHl  there),  I  aJso  rieeded  to 
make  some  subjective  assessments  of 
shortwave  propagation  from  up  country  to 
l-agos.  TT>a  iCF  2O01  was  a  useful  piece  of 
kit,  partlcufafly  in  an  area  with  a  crowded 
shortwave  spectrum.  Being  able  to  iTfid 
readily  a  particular  transmission  simply 
by  keying  Its  frequency  was  a  positive 
bonus. 

That  was  the  good  news-- the  bad  was 
the  size  and  weight  of  the  unit  (although 
much  smaller  than  a  'convenlional" 
shortwave  receiver}  and  Its  voracious  ap- 
petite for  D  ceils  which  f  had  to  lake  In 
quantity  to  avoid  being  dead  In  the  bush. 

The  new  model,  thougti,  comas  very 
close  to  the  ahlrt-  or  vest-pocket  short- 


wave radio  (of  reasonable  performance, 
that  ls)r  Although  only  srnall  enough  to  lit 
Into  a  poacher's  pocket,  it  will  fit  easily  in- 
to  a  comer  of  my  bftefcase.  This  means  I 
can  carry  it  (and  Its  AA-size  dry  cells)  on 
my  many  business  trips.  And  that  was  the 
lustlfication  for  payir^g  a£»out  $250.  hfow 
wt>en  I  am  away  on  busine&s.  I  can  still 
listen  to  the  world. 

It  never  ceases  to  amaze  me  just  how 
much  t rattle  there  still  is  on  the  shortwave 
bands.  Satellites  and  computers  and 
othef  hi-tech  gadget ry  are  OK  in  their 
place,  tHjt,  seemingly,  there  I e  still  no  suE>- 
stltute  for  tried  and  tested  methods. 

A  recent  bringing  together  of  comput- 
ers and  shortwave  radio  may  bo  of  Interest 
to  aeronaut  leal  I  y-^inded  readers.  A  num- 
t>er  of  utility  stations  around  the  wortd 
transmit  Volmet  messages  giving  plalrh 
language  weattier  fnfofmatlon  for  princi- 
pal airports.  The  tKoadcasts,  including  In- 
formation such  as  cloud  base,  visibiflty, 
current  weather,  etc.,  are  Intended  primar- 
ily for  aircrew.  The  Boyal  Air  Force  (BAF) 
fs  responsible  for  some  Volmet  transmis- 
sions In  trie  UK.  On  4.720  MHz  they  now 
use  a  computer-synthesized  voice.  The 
station  seems  to  broadcast  all  day. 

UK  CONTESTS 

The  Radio  Society  of  Great  Britain 
(RSG8)  organizes  and  coordinates  a  great 
many  contests  throughout  each  year. 
Many  of  these  are  on  the  VHF  bands  and 
atx>ve  (70  MHz,  144  MHz.  432  MHz.  1296 
MHz.  and  Ngher  Iraquencies  t)eing  repre- 
sented) and  of  ilttle  interest,  therefore,  to 
non-European  readers.  There  are,  how- 
ever, a  number  of  HF  contests  wjifh  an  errv 
ph^la  on  working  UK  stations.  Those  fot- 
lowing  the  publication  date  of  this  Issue 
Of  73  Include: 


•  2-3  JuAft 

•  23-24  June 

•  tSJuly 

•  1-2  September 

•  7  0ctDbier 

•  21  October 

•  10-11  November 

•  1 2  Novemtter, 
20  November, 
28  No*emt)er, 

S  Decemtwf .  and 
14  December 


HF  National 
Field  Day 
Summer  U  MHz 
ORP  Field  Day 
SSB  Field  Day 
21-38  MHz  phone 
2IMHZCW 
2nd1.BMHz 


28  MHz 
Cumulative 


In  all  cases.  UK  stations  will  tie  looking 
for  as  many  DX  multipliers  as  they  can 
flnd^  DX  stations  will  find  these  dates  use- 
ful for  Increasing  their  log  entries  of  all  UK 
prefixes. 


ISRAEL 

Hon  Gang  4Z4l^K 
Kibbutz  Urtm 
Negev  MohUe  f^oot  Otiica 
85530  tsraei 

In  the  last  few  coiumns,  I've  dealt  with 
specific  areas  of  amateur  rad^o  in  Israel. 
In  the  meantime,  a  number  of  news  items 
have  accumulated,  so  the  time  has  come 
to  tiite  care  of  these  odds  and  ends. 

CONTESTS 

The  Israel  Amateur  Radio  Club  Contest 
Committee  has  announced  three  upcom- 
ing competitions.  The  first  two  are  on  a 
national  basis— the  Spring  Contest  on 
Israel  Independence  Day,  May  7,  on  ISO. 
80,  and  40  meters  only,  and  a  VHF-UHF 


test  to  be  held  in  the  summaf.  Of  interest 
to  readers  of  this  column  Is  Ihe  long- 
awaited  israeNntefnational  DX  Contest 
that  Is  planned  for  mld-OctOber.  When 
data  lie  become  available,  they  will  be 
rushed  to  the  interr^tlonal  amateur  press. 

THE  JERUSALEM  AWARD 

The  following  are  the  final  re- 
quirements for  the  coveted  Jerusalem 
Award;  Ten  different  Israeli  stations  must 
be  worked.  Including  no  less  than  seven 
Jerusalam  staions^  AJI  modes  and  bands 
are  permlasible,  and  the  contacts  must 
have  been  made  since  January  t,  1983.  No 
QSI-s  are  necessary— just  a  log  of  the 
contacts,  verified  by  two  other  licensed 
amateurs.  This  is  to  be  sent  along  with 
eight  iRCs  to  the  award  manager,  Dr.  Mtit 
Gordon  4XeAA.  PO  Boa  4079,  Jerusalem. 
Israel. 

The  rules  foe  (he  two  awards  ot  the 
Israel  Amateur  Radio  Club  remain  un- 
changed and  are  to  be  found  In  this  col- 
umn In  the  August*  18B3«  Issue  of  7B. 

Quite  a  bit  of  Interest  was  created  here 
by  the  flight  of  the  ST5-9  space  shuttle 
with  Dr.  Owen  Garriott  W&LFL  operating 
on  board.  A  few  diehards  assefnbied  the 
antennas  specified  by  AMSAT  and  kept 
themselves  up-todate  on  orbit  and  fre^ 
quency  information.  To  the  t)est  of  my 
knowledge,  the  only  contact  with  the  Co^ 
lumbia  in  our  region  was  made  by  otir 
neighbor,  His  Majesty  King  Hussein  JV1, 
In  the  Royal  Palace,  an  American  tele^ 
vison  crew  recorded  this  historic  OSO, 
which  lat»r  was  televised  all  around  the 
wortd.  At  the  time  of  this  contact,  ama- 
tours  In  the  region  who  were  monitoring 
W5LFL*3  frequency  heard  nothing^  point' 
tng  to  the  fact  that  this  contact  was  a  pr^ 
airanged  sked. 

NEW  REPEATER  FOR  TEL  AVIV 

Tel  Aviv  has  become  the  recipient  of  a 
brand-new*  two-meter  repeater  to  replace 
the  old  one,  long  suffering  from  probients 
of  Intermod  and  low  sensitivity.  In  a  cere- 
mony in  the  Motorola  Israel  offices,  Valr 
4X4GH.  Avner  4K4GE,  and  David  4X4WA, 
representing  Motorola,  presented  the  re* 
peater  to  representatives  of  the  IARC> 
Since  then,  Aharon  424 AG  has  been  test- 
ing and  adjusting  the  machine,  and  by  the 
lime  this  Is  In  print  J I  should  be  on  the  air 
on  R7, 145.775^.175  MHi 

Ytir  Yc^efi  4X40  H,  speaking  for  Moto- 
rola, said  that  his  firm  views  tha  amateur 
public  as  a  technical  resource  In  the  field 
of  electronics,  and  thus  Motorola  contin- 
ues to  aid  the  radio  arrvateurs  of  Israel  In 
developing  a  national  repeater  network,  in 
reply,  I  arc  presider^t  Aharon  Kirschner 
4X4AT  gave  recognition  to  the  fact  that 
the  entire  chain  of  lAJ^  repeaters  has 
t)een  donated  by  Motorola  Israel.  Aharon 
praised  Mr.  Yosefi,  who  had  done  evefy* 
thing  In  his  ability  to  aid  the  lARC.  After 
the  speeches  were  over,  glasses  were 
raised  to  toast  'Ihe  repeaters  that  are  on 
the  way,"  Tbe  meeting  was  coneiudad 
with  a  guided  togr  of  the  company's  labs, 
conducted  by  4X4Q& 

MINJSTIIY  OF  CQMIiUNICATIOI^S  M^WS 

An  ongoing  dialogue,  once  every  three 
months,  is  tMing  held  with  represeiv- 
tatlves  of  the  Ministry  of  Communica- 
tions, The  following  Items  have  been  con- 
cluded up  to  this  date. 

&mry  planr>ad  change  In  amateur  li- 
censing will  be  made  known  to  the  lARC 
eKecutive  before  It  la  made  public  knowl- 
edge. The  chart  of  allotted  frequencies 
and  powers  will  be  deliberated  upon  by  a 
idnt  group  from  the  Ministry  ar>d  the 
I  ARC.  The  possibility  of  placing  I  ARC  re- 


73  Magazine  •  June,  1984    75 


peaters  In  Ministry  of  Comfnunlcatlona 
sH«9  will  be  examined. 

The  procesa  of  llcenifng  vlsltiT>g  ama- 
tfrurs  from  ebroAd  ^&  to  be  a^mj>nried.  Ami 
the  phiyslcal  size  of  the  amateur  Itoen&e  te 
to  be  reduced  from  certificate  to  waMet 
size. 

CB  IN  tSfUEL? 

A  commltlse  from  the  Ministry  19^  to  be 
vet  up  to  examine  the  estebilshment  of  a 
Cod^free  Hcenae  according  to  the  fol- 
lowing ggideltnes:  T?ie  licenQa  will  be 
granted  lo  tho^e  parsing  an  exam  cover- 
ing conditions  of  tt>e  llcen&e,  voice  oper-^ 
ating  procedures,  and  safety  precautions. 
A  single  cFystat^Ofit rolled  frequenoy  In 
the  Z74AH1.  region  will  tie  allolled,  and 
both  input  &mf  effeclivcr  radiated  power 
witl  be  limits 

Ehud  -Ed"  ZaQef  4Z4UB  has  complied  a 
12'0age  booklet  dealing  with  lightning 
and  communicat^ofis  syetema.  The  book, 
distributed  Free  of  charge  to  I  ARC  mem- 
bers, covers  everything  you  ever  wanted 
to  l<now  et>out  Mghtning,  th^  damages  It 
can  cause,  and  how  to  protect  your  sta- 
tion effectively  from  Ita  favagea.  Wfra 
krwws?  Maybe  Ed  can  be  convinced  to  put 
out  an  English  edition! 

Not  long  ago,  I  received  an  unexpected 
but  welcome  visitor,  Major  George  MlKom 
N410M,  who  recently  came  qv&f  to  these 
parts  to  BBfve  with  the  MultlnalicKiai 
Forces  In  the  SInal  peninsula  observing 
the  Israei^-Eoypi  peace  treaty-  George,  a 
reader  of  this  colymn,  was  on  his  way 
bacK  to  Egypt  after  picking  up  his  Israeli 
reciprocal  license  in  Tei  Aviv  and  decided 
to  drop  in  and  ^y  hello-  There  is  not  yet  an 
Egypt ian^mericsn  reciprocal  lloenalng 
aQiaement,  so  George  doesn't  know  If 
he'll  be  able  lo  get  permission  to  opefate 
portable  SU.  If  he  cfoes,  I  m  sure  he'll  nave 
some  big  plleups  to  contend  with. 

In  conclusion,  I'd  Itke  lo  give  you  again 
the  present  procedure  for  obtaining  a  re- 
ciprocal licefise  during  your  visit  to  IsraeL 
You  apoear  In  peraoi^  with  your  valid  ama- 
teur llcen^  (not  a  photocopyi  at  the  office 
of  the  Ministry  ot  Communications,  on  the 
tenth  floor  of  the  Shalom  Tower  on  Ah  ad 
Ha'am  Street,  downtown  T«t  Aviv's  higtv 
eet  buiidlrig.  A  reciprocal  permn  will  be 
Issued  on  the  spot  free  Ol  charge.  Office 
hours  are  from  9KK}  am  to  1 :00  pm ,  Sunday 
through  Thursday,  and  the  phone  number 
h  (03^€10278. 


^      ITALY 

Afar/a  Ambrosi  I2MQP 

?0129  Miiano 
n&iy 

The  January  Issue  of  Hedfo  Rivtsta  (the 
Hal  I  an  Ijeague  magazine)  dedicates  one 
page  to  the  awards  spoitsomd  by  7S  with 
the  reproduction  of  three  of  the  awards^ 
On  the  opposite  page  there  is  a  pTiato  of 
the  Italian  islands  Award,  tt's  a  very  nice 
one  and  we  have  been  writing  ab»out  it  to 
call  your  atteniion  to  it.  CSee  the  January 
column.) 

In  the  same  maoaiine,  ttie  oover  photo 
and  10  pages  covar  usage  of  the  personal 
computer  in  the  radio  shack.  Particular  at* 
tentlon  is  given  to  the  ComnrkKiore  S4  that 
li  becoming  very  popular  in  Italy  (we  are 
waiting  (or  the  first  copies  of  RUNi  and  to 
some  locally^ulH  interfacea. 

t^ots  of  excitement  twtween  Italian 
2-rTWter  users  for  the  activity  o(  W5LFL 

76     73  Magazine  •  June,  1984 


during  the  first  days  of  Decemtwr.  Owen 
GafTfott  was  heard  with  very  strong  sfg- 
nais  on  the  Sth  and  the  7th  of  DecemOei 
and  was  worked  by  a  tew  ol  the  2-meter 
tilg  guns.  It  was  not  necessary,  in  any 
cose,  to  havQ  anything  special  to  read 
him;  it  was  enough  to  turn  on  a  hand-held 
transceiver,  but  it  was  not  easy  to  wofk 
him  due  to  tfie  huge  numtref  of  people 
calling  him. 

I1NRF  and  I5FBP  have  had  conflrma* 
tton  of  contacts:  more  are  expected. 

NEW  FREQUENCIES  m  flMX 

The  Half  en  Ministry  of  TelecommunloBr 
tlons  has  given  written  confirmation  of 
tlie  new  frequencies  assigned  lo  ttalian 

OO^StOfS. 

•  1830-1850  kHz  with  a  maximum  output 
power  of  100  W.  For  the  area  Of  Sicily,  the 
upper  limit  is  1045. 

•  lOOea-iaiea  kHr.  For  the  moment, 
only  on  a  secondary  priority  basis: 
awaiting  the  reallocation  of  tt>e  existing 
services  to  other  frequencies  to  become 
prirrary, 

•  24^90 -24900  kHz.  Same  situation  as 
above. 

«  1296-1298  MHz  with  a  maximum  EAP 
of  SOW. 

•  12^^7-1270  Mi4z  only  for  aatelilta  aer 
vice,  to  be  asalgned  on  a  personal  basis 
upoci  request. 

•  10100-10150  kHz.  We  will  be  auths^ 
rlzed  to  use  only  10  kHz  on  this  band.  The 
Italian  ijeague  has  been  requested  to  in- 
vwtlgate  and  report  what  l^  the  best  part 
of  these  frequencies.  The  choice  will  be 
very  eaty  as  we  will  onfy  fiave  to  find 
where  the  interference  is  lowest.  In  fact 
Radio  Moscow  I&  received  at  10115  with 
9  +  40  signals  and  Arabian  broadcasting 
uaes  tot 20  with  9  +  20  reports. 

MOetLE  SERVICE,  REPEATERS 

The  Ministry  of  Telecommunlcotlons 
has  agreed  to  authorize  the  focai  oper- 
ators to  work  mobile  on  144  MHz  and  up 
with  a  maximum  power  of  10  W;  rw  clarifi- 
cation is  giv«n  as  to  whether  this  la  Inpcit 
or  out  put. 

This  Is  an  Important  point  as  it  recoo- 
rtizes  the  mobile  service,  and  possibly  U 
can  be  a  first  ntep  to  ^t  the  saine  kind  of 
authKirization  also  on  HF. 

Tha  same  day,  the  authorltiee  recog- 
nized the  existence  of  repeaters  on  the 
2'meter  tsand.  Rules  will  be  isaued  on  this 
matlw  in  a  short  time. 

60  MEIERS 

The  BO-meter  band  Is  still  a  subject  of 
dispute  between  the  League  and  the  Post^ 
al  Admlnislratton,  We  can  now  see  the 
possrbltity  of  findirn)  a  aotutlOfi  to  tM  abfe 
to  use  all  the  band,  but  it  will  take  several 
months  to  reach  the  final  agreement. 

A  flr»t  step  towards  It  is  the  acceptance 
from  tfio  Administration  not  to  take  too 
»tror>a  actions  against  hams  found  out  of 
the  authorized  small  portions  of  frequen- 
cies. From  now  on.  the  "bandits"  will  re- 
ceive only  a  written  note  of  the  violation 
tnstead  of  having  the  llcefiae  suspended 
for  one  month  srx3  a  fine.  All  the  at}ove  Is  a 
Clear  indication  of  a  different  attitude  to^ 
wards  the  amateur  community,  and  this  Is 
mainly  due  to  the  kind  but  firm  apprxiach 
taken  by  tt>e  ttatUn  League,  Let's  hope  11 
will  contimie  this  way, 

PWtST  CA  RTTY 

The  first  county  RTTY  award  has  been 
given  to  Joe  liAOF  from  ftom«.  He  had  to 
contact  1 2,000  US  stailofis  to  be  able  to 
reach  the  500  different  counties,  tn  ttie 
meantlmei  he  has  also  worked  192  courv 
tries  and  Is  rkow  trying  to  reach  the  200 
level;  that  la  quite  an  adilevement  fof  a 


RTTYer!   He  Is  always  lookina  for  the 
$ia|«9»  to  if  you  hear  him,  give  a  calL 

^  a'  a-  w  * 

Maybe  you  wilt  be  fnter^ted  to  know 
that  In  our  country  you  can  Install  a  televi- 
sion station  and  broadcast  pomo  riln%$  alt 
tlirougit  the  day  ar^d  you  witi  get  into  no 
troublee. 


check  in  on  Sunday  morning  so  we  are 
abie  to  pass  meeaages.  The  r\et  meets  dai- 
ly at  0700.  but  net  as  n^ny  of  ttte  stations 
are  able  lo  check  In  on  the  dally  achedute, 
We  don*t  miss  an  antenr\a  party  It  wa 
can  help  it* 


UBERIA 

Brotfwf  Dortard  Statfes,  C.S.C. 

EilAUWESHFY 

Brothafs  of  the  Hoty  Cross 

St  Patrick  Hfgn  Schcol 

^O  Box  1005 

Monrovia 

Rffput^lic  of  Ub^fia 

Antenna  parties!  Amateurs  here  In 
LUwrf  a  love  to  go  to  antenna  pailies^ 

Saturday  nlgtrt  I  was  talking  to  ofK  Of 
my  friends  ori  two  meters.  He  had  speni 
moat  of  the  day  on  imbaasy  Hill  helping 
to  put  up  a  three-band  Quahcraft.  IHe  apol- 
ogised because  i  wa&  not  Invited  for  the 
occasion.  As  a  rr^tier  of  fact.  It  was  less 
than  a  year  ago  that  I  had  helped  put  up 
the  same  antenna  at  another  locatlort  Evi- 
dently, in  this  Instance,  they  had  a  tower 
on  the  roof  of  a  muiti-Storlsd  building  and 
had  found  It  nacaaaaiy  lo  build  a  working 
piattorm  at  the  base  of  the  tower,  tt^  size 
or  the  platform  1 1  ml  led  the  number  of  "e>f- 
perts"  that  could  be  accommodated,  I  felt 
left  out  but  urKierstood  that  it  really  coutd 
TyoA  t^  helped-  As  it  worked  out,  the  anten- 
na didn't  wofK 

it  was  too  late  In  the  day  to  do  anyttring 
more,  so  everyone  went  home  arid  we 
spent  the  evening  on  two  meters  advising 
the  group  on  what  they  stvDu^d  lio  the  next 
day.  t  made  the  btllliant  suggestlort  that 
they  make  soff^e  otimrrteter  checks  before 
they  take  down  the  whole  antenna^ 

'There  is  really  no  reason  why  the  thing 
sihouidn't  work," 

After  a  ftard  night,  the  group  reaasMTv 
bled  the  netct  day,  which  was  Sunday,  and 
began  to  run  tests.  It  turned  out  that  the 
tialun  was  shorted  so  they  took  It  out  and 
connected  the  coax  directly  to  the  driven 
erernent  After  a  few  loops  wero  put  into 
the  feediioe  at  the  upper  end,  ttie  awr  was 
ain>oat  one  to  one. 

I  mentioned  above  that  we  had  put  up 
the  same  antenna  foe  anott>ef  amateur 
less  Ihan  a  year  previously.  He  was  a  be- 
ginner and  had  built  his  fust  kit.  a  Hot 
Water  one  zero  or>e.  That  didn't  work 
either.  Just  atiout  the  time  we  finished 
troubleshooting  the  rig  and  had  him  on 
thke  air.  he  was  given  another  aaa^ifvnent 
and  sent  to  another  cour^try.  That  fa  a 
chronic  situation  in  these  pans,  at  least 
90  It  seems. 

In  my  experience,  amateurs  like  to  help 
aech  other,  but  over  here  in  Liberia  I  think 
that  this  spirit  is  "special."  TTie  reason  is, 
of  course,  that  there  are  so  few  of  us  and 
the  fact  that  paris  and  service  are  scarce. 
In  spite  of  poor  mall  service,  we  manage 
to  rT)ova  radios  and  paris  up  and  down  tl^ 
country  as  the  r>ecessity  aiiaes.  It  may 
take  a  couple  of  weeks  or  a  rr^onth,  but  pa- 
tience ia  something  that  one  learns  very 
rapidly. 

We  do  have  a  good  repeater  and  that 
gives  us  eoftimunlcatlon  w^th  amateura 
wtio  have  two-meter  equipment,  but  nK>re 
Imporiantly  we  have  the  West  African  Net 
which  meets  every  Sunday  morning  at 
0600  Zulu.  Most  of  the  counties  of  Uberia 


MALAYStA 

Mohammad  Saifah  9M6MO 
IMto  A  TV  htaiaysia 
Miia  t¥i  Tttmrmf}  Ro^d 
Koia  Kinabatu 

Ea$t  Maiaysia 

UOyi^T  KINAMLU  EXFEDtnON 

We  started  off  from  Kota  Klnat>atu  al 
about  1500  local  lime  (0700  LTTC)  on 
January  13.  arriving  at  Klnabalu  National 
Park  at  1700.  The  Katlorta)  Park  Is  about 
4d  mites  (77  km)  froin  Kota  Kir^abalu. 
Ttiere  were  ten  of  us  In  the  group—  I  was 
the  only  amateur-radio  operator,  Eight  of 
us  managed  to  get  beds  in  the  hostel. 
(One  of  my  friends  and  I  had  to  aleep  in  our 
individual  cars.)  The  park  is  5000'  (1524 
metera)  atM»e  sea  level.  Jtm  night  was 
quite  cold  arMi  it  was  raining. 

The  next  day  at  0700  we  reported  at  the 
park  headquarters  located  a  few  hundred 
yards  from  ttie  hostel  After  having  coffee 
at  the  pafk's  canteen^  we  staried  off  tn  a 
hired  Yehlcle  (sntall  truck)  to  the  power 
station  three  miles  away.  From  the  power 
station,  we  started  walking  up.  We  had 
one  guide  and  we  did  not  hire  any  porter  to 
carry  our  load.  Every  one  of  us  carried  a 
haversack,  i  had  to  carry  a  Z-meier  mobite 
transceiver,  one  IZ-vott^  12-Amp/hour  mo- 
torcycle battery,  and  an  antenna  (Slim 
iim).  The  antenna  Is  a  horT>e-brew  loO  from 
Practical  Wre/e*s.  for  Apfli,  197S^  F,  Q. 

When  we  started,  Sylvester »  or>e  of  my 
friends  In  the  group,  decided  to  help  me 
carry  the  battery  and  the  2-metar  rig.  This 
was  realty  apf^eclated  because  we  were 
to  c1iml>  about  four  miles  before  stopping 
over  for  the  night  at  the  Panar  Laban 
shelter  at  11,000  feet  (3.000  maters).  All 
alorvg  the  way  the  temperature  was  com- 
fortable and  cool.  We  took  some  pictures; 
we  wefe  very  tired  as  we  got  closer  to 
Panar  Laban.  I  felt  a  little  stwjrt  of  breath 
and  had  a  slight  headache  at  the  high 
altitude. 

Some  of  the  boys  reached  Panar  Laban 
at  1230.  £>ut  myselt  and  three  others  arriv- 
ed at  1500.  It  was  a  relief  to  see  Panar 
Laban! 

AftSf  getting  the  bed  and  the  steeping 
bag  reedy.  I  set  up  ttie  equipm«it  (FDK 
dOOD,  2'meter  FW)  with  the  antenna  be- 
tween Two  rocks,  almost  on  the  ground.  I 
started  catling  CQ  at  about  0500  UTC  with 
one  Watt  of  power.  FM.  Not  long  after  the 
call  I  heard  V35HG  ffo<n  Bandar  Se^l  3e^ 
gawan,  Brunei;  he  cams  In  5/7.  He  was 
running  25  Watts  Into  a  oroundplarte. 
Brunei  Is  about  320  km  away.  And  after 
atwut  20  minutes  of  the  QSO,  during  a 
t>reak.  I  heard  anott^er  station  Itiking  to 
VS5H0. 

The  ottier  station  was  •  bit  w«ak  wttti  a 
lot  of  r^ise.  Later  on,  t  could  Identify  that 
It  was  Gerald  VS5GA,  So  i  asked  VS5HG  to 
tetl  Gerald  that  I  coutd  hear  him  weakly. 
Latef  on.  I  uivderstood  that  Qoraid  could 
tiear  me,  so  I  increased  power  lo  5  Watts. 
So,  with  me  running  5  Watts  and  Gerald 
running  26  Watts^  we  managed  a  long 

Coftftnt/^  on  peg«  122 


Attenti  on 
Moonbouncers 

and  Satellite  Communications  Enthusiasts 


Introducing  New  Ultra  High 
Performance  Antennas 
from  KLM  Electronics,  Inc. 

KLM  Electronics  is  fueling  the  Moonbounce  and  Oscar  10 

revDluiion  with  Antenna  Equipmeni  that  delivers  truly 
Out-of-This- World  performance. 

For  the  Moonbouncer,  our  New  2M-16LBX  is  designed 
to  be  the  highest  gain  2  meter  antenna  available  on  the  mar- 
ket today  by  more  than  a  full  db.  making  the  2M-16LBX  an 
outstanding  performer  as  a  single  antenna  or  in  Moon- 
bounce  (EME)  arrays. 

The  New  432-30LBX  follows  the  same  pattern  as  the 
2M-I6LBX.  and  soon  will  become  the  industry's  standard 
of  comparison, 

Featuring  straight  foi-w^'ard  construction,  and  an  innova- 
tive tapered  boom  that  greatly  reduces  windload  and  adds 
strength  and  durability.  Virtually  unbreakable,  insulated, 
3/16"  rod  parasitic  elements  are  anchored  through  the  boom 
to  insure  years  of  I  rouble-free  performance. 

For  the  satellite  enthusiasts,  the  2M-22C  high  gain  2 
meter,  circular  polarized  antenna,  features  rhe  same  rugged 
construction  and  total  tlexibiliiy  as  our  very  popular 
2M- 14C  with  a  2db  increase  in  gain. 

Four  or  more  2M-22Cs  make  an  excellent  array  for 
Moonbounce  tEMEI  by  eliminating  Faraday  fading. 

Fiberglass  aluminum  slacking  frames  are  available  as 
well  as  2  and  4  port  power  dividers  and  phasing  harnesses 
to  optimize  the  performance  of  these  type  arrays. 

Watch  for  our  new  elevation  drive  system  coming  soon. 


432-30LBX 

BANDWIDTH  _ .....,._ ,  _  430-440  MHz 

i^GAlN , ,  17.3  dBd 

BEAMWIDTH   .  .  . , (E)  19\  (H)  20° 

FEED  IMP  .«.....,.««.,«.  ^  4  *«<«..*..«  ^  ^ 50  ohms  unbaK 

BALUN  ..,-....._ ...-..-.*„..*.-....,. . « . . .  included 

TURNING  RADrUS , „ , 12  ft.  4  in. 

WT.  (lbs.) , , , , ,,.,..,...........-,,-,.  9  lbs. 


2M-22C 

*GA1N ,.,,.,,,,. , ,,.,., 13  dBdc 

E3£^/\  d  V  i  \w  J  L^  M  AX     ■^^■••■■■•^■■■■■■-■■■■■■'■■•■■■■■■■■ai  *«■■«■■*«    I  d'M   «!  ^    f   \  Wm  f   J  ^ 

FEED  IMP .50  ohms  unbal. 

BALUN (2)  4:t  coaxial 

BOOM  LENGTH 19  ft.  i  in.  (tapered) 

VSV^R  1    ^l 

WINDLOAD , .*...,.**♦*,♦.,♦.,  1.85  sq.  ft*  max. 

CTRCULARITY  SWITCHER „ CS-3  included 


2M-16LBX 

BANDWIDTH , 144- 146  MHz 

♦GAIN  .., .-.,,.-...,, ,  (144  MHe)  14.5  dBd 

BEAMWIDTH .,..,... (E)  26",  (H)  29° 

FEED  IMP , . , . 50  ohms  unbaL 

BALUN   . , ...,,, . 4:1  coaxial,  2  KWPEP 

BOOM  LENGTH ...*,,  28  ft,  I  in.  (tapered) 

VSW  R ....._. 1.5:1 

WINDLOAD (H)  1.75  sq.  ft.  (V)  2.44  sq.  ft.  max. 

WT,  (lbs.)  ..,,..... , . .  10  lbs, 

TURNING  RADIUS  ,,.,*.  +  .,.... ....,«,».»,,  15ft.  5  in. 

See  the  complete  line  of  KLM  antennas  attd  equipment  at 
your  local  dealer,  or  write  for  our  catalog. 

*To  provide  a  more  accurate  and  con&lstanj  gain  figure,  pefformance  oMhis  KLM 
ant€!nf>a  ha&  be«n  caf^fully  measiired  and  carrel aled  in  accordance  wi^th  Nationat 
Burejiy  of  Standards  Note  #6@6^  This  gain  figure  msy  appear  somewhat  conservative 
wt^n  compared  Mittiolhers  commortly  round  in  co-nventional  induslry  literalyre  andi 
base<3  on  otder.  i^ss  exacting  ratiTig  methods. 


nam 


electronics^  Inc. 

P.O.  Box  816 

Morgan  Hill,  CA  95037 

73  Magazine  •  June,  1984    77 


Imms  8.  lohnston  K6APW 
102^  Peraka  Avenue 
Atbany  CA  94708 


Try  Quality  Code 

Using  this  Mod  III  update  is  much  simpler 
than  saying  its  title  trenty  times. 


You  TRS-80  Model  111  us- 
ers who  didn't  "patch" 
the  fine  keyboard  program 
written  by  Louis  Graue 
KBTT  [73,  July,  1982)  have 
possibly  missed  a  nice  sta- 
tion addition.  I  did  not  like 
the  messy  screen  that  the 
original  patch-up  left  me,  so 
this  insert  was  written.  Lou 
has  graciousfy  tested  this 
and  a  previous  version  and 
reports  this  one  runs  fine  on 
his  Model  I  also. 

The  two  models  have 
partially  different  ROMs 
and  the  calls  used  to  de* 
code  the  miscellaneous 
keys  read  in  3840H  memory 
location  give  invalid  data 
for  the  Model  IIL  This  sub- 


stitution instead  continues 
the  software  decode. 

To  keep  the  video  in  sync 

with  the  sending  program, 
unshifted  arrows  other  than 
backspace  are  ignored  At- 
tempts to  use  expanded 
video  by  loading  07H  in  line 
3570  (right  arrow)  gave  dif- 
ferent, though  equally  fa- 
tal, problems  for  both  mod- 
els. The  10H  in  the  [isting, 
when  shifted,  will  give  an 
"extra"  space  bar.  Sending 
"deaf  directly  to  video 
memory  bypasses  a  ROM 
routine  that  actually  clears 
tiie  screen,  I  retained  It  as  is 
since  it  is  not  destructive. 

If  your  editor  doesn't  re- 
number on  line  collision,  use 
a  smaller  step  for  your  inser- 


tion and  renumber  from  the 
top  when  finished,  The  pro- 
cedure—delete lines  3260 
through  3550  and  insert  the 
listing  shown  here. 

If  you  have  included  the 
comment  lines,  the  renum- 
bering will  give  an  easy- 
to-read  two-hundred  off- 
set to  SCHR  and  following 
tines.  Lou  and  I  both  expe- 
rienced symbol  table  over- 
flow when  assembling— not 
enough  memory.  After  sav- 
ing the  source  file,  eliminate 
as  many  comments  or  conrv 
ment  lines  as  necessary  to 
free  memory. 

New  Information 

Lou  passed  along  from 
John  Meade  W2XS  support 


of    BT, 
Change 
lowing  I 

AA,    AR,    and    SK, 

the  data  in  the  fel- 
ines; 

Line 

Character 

Key 

2450 

2580 

2590 

2610 
1 

BT  -  0D1H 
AA  =  0E5H 
AR  =  OCAH 
SK^    85H 

1 

m 

;            ' 

1 

I  key  my  solid-state  trans- 
ceiver directly  with  one 
2N2222  driven  through  a 
2.2k-Ohm  base  resistor  by 
substituting  a  two  (02 H)  for 
the  zero  in  lines  220,  1290, 
1590.1770.  and  1960  of  the 
original  listing.  This  change 
gives  a  true  zero  out  instead 
of  0.4  volts. 

Good  luck  and  I  hope  to 
hear  some  Model  Ml  key- 
boards soon.  ■ 


Program  Usting, 
Delete  lines  3260  through  3550: 


Insert; 

3260 
3270 

3280 
3290 
3300 
3310 

3320 
3330 
3340 
3350 
3360 
3370 
3380 
3390 
3400 
3410 
3420 
3430 
3440 
3450 
3460 
3470 


;KEYSCN  insert 
;73  MAGAZINE     J 
;TRS-80  MOD  I  a 

JR 

SUB 

JR 

ADD 

CP 

JR 

XOR 
SHBIT      RRC 

JR 

RRC 

JR 
SHIFT       XOR 

JR 
COHPLTT     CP 

JR 

CP 

JR 

JR 


for  K8TT  CW  KEYBOARD  of 

uly  1982 

nd  III  -  K6APW    March  1983 

CSCHR         ;0  through  Z  (no  shift) 
70H  ;niimfaers? 

NCCOMPUT  igo  if  not  numbers 
A,40H 

;0  through  9  ;;* 


3CH 

CtSHBIT 

10H 

B 

C, SHIFT 

B 

NCSCHR 

10H 

SCHR 

07H 

Z, SPACE 

05H 

Z,LF 

NCRT 


;make  -./ 

;left  (both  HOD  I) 

;  right 

;make  uppers 


3480 
3490 
3500 
3510 
3520 
3530 
3540 
3550 
3560 
3570 
3580 
3590 
3600 
3610 
3620 
3630 
3640 
3650 
3660 
3670 
3680 
3690 
3700 
3710 
3720 
3730 
3740 
3750 


LF 

RT 

UP 

DN 
ARROW 


SH 

CLR 

BK 

SPACE 


CP 

JR 

JR 

CP 

JR 

JR 

JR 

LO 

JR 

LD 

JR 

LD 

JR 

LD 

RRC 

JR 

RRC 

JR 

LD 

JR 

ADO 

JR 

LD 

JR 

LD 

JR 

LO 


03H 

Z,UP 

HCM 

01H 

Z,CLR 

NCtBK 

SCHR 

A,08H 

SCHR 

A,10H 

ARROM 

A,0BH 

ARROW 

A,0AH 

B 

C.SH 


C,SH 

A,0 

SCHR 

AJ0H 

SCHR 

AJFH 

SCHR 

A,01H 

SCHR 

A,20H 


;no  ENTER,  already  NUL 

;go,  shifted  or  not 
;not  09,  see  text 

;not  5BH 


;keep  video  sync 
; shift  them 


7S     73Magazfne  •  June,  1934 


DIRECTION  FINDING? 


#  Doppler  Direction 
Finding 

it  Ho  Receiver  Mods 

*  Hooile  or  Fixed 
^  Kits  Of 

Assembled  Units 

•  135-165  MHz 
Standard  Range 


•  Circular  LEO 
Display 

it  Optional  Digital 
Display 

•  Optional  Serial 
Interface 

•  12  VDC  Operation 
it  90  Day  Warranty 


New  Tectinolo^iy  (patent  pending)  converts  any  VHF  FM  receiver  into  an  advanced 
Doppler  Direcljon  Finder,  Simply  plug  into  receiver's  antenna  and  external  speaker 
jacks-  Use  any  four  omnidirectional  antennas.  Low  notse,  high  sensitivity  for  weak 
signal  detection.  Kits  from  S270.  Assembled  units  and  antennas  also  available  Call  or 
write  for  lull  details  and  prices. 

j;j  DOPPLER  SYSTEMS,    '^f,^^'^'^ii   (602)998-1151 


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KIT  $69.95 


hr  8/79 


Increased  talk  power:  Up  to 
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omniended  under  most  oper- 
aiing  conditions) 
Frequency  response:  350 
H2  —  2 A  kHz  at  3  dB  down 
(200  Hz  -  3  kHz  at  12  dB 
down) 

Harmonic  Distortion:  Less 
than  12%  a!  1  kH^  with  10 
dB  dipping 
Requires  12  Vdc  at  200  mA 


ALSO  IN  STOCK: 

Kits  for  HF,  VHF  &  UHF 
Test  EquipFTtent  Kits 
Tomlds.  Rods  &  Beads 
Resistors  &  Capacitors 
Antenna  Components 

See  CaiaJog 


pius  $2. 50  shipping  &  h^ndlfrtg 


H-454 


1984-85  CATALOG  50e 

RADIOC^ 

Boi  411S.  Granville.  NH  03im 
(£03}  87a^1033 


CALL  LONG  DISTANCE  ON  YOUR  HANDHELD 


The  Model  335A  will  deliver  36  watts  of 
power  usmg  the  Eatest  state-of-the-arl  cir- 
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FM  and  is  compatible  with 
most  handheld  trans- 
ceivers, inc[uding  the 
TR2400.  TR2500.  )C-2AT. 
Yaesu,  Santec*  and  Ten- 
Tec.  Only  300  mw  input  will 
deliver  S  watts  out;  3  watts 
in  will  deliver  35  watts  out. 
Maximum  input  drive  level 
Is  5  watts. 


Our  products  are  backed  by  prompt  fac- 
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market,  call  or  wnte  lor  our 
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catalog. 

Modet  335A 

Kit  $69.95 

Wired  &  Tested  $89.95 


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dciubkJ-HA  TytJBS.  but  itio  pateritecl  Trombona" 
phasing  Sj^cxion  alk>w«  the  radtacor  to  remain  unbroken 
t>v  ivvSivritstor^  for  mAHirrkum  strnfrigTh  «n  hign  w^^s  Na 
cafe  'tAMttxf*  dehghf ~  cortStnjoiOi-i  srvj  Kf|L££idbl^ 
(fMtirnia  maflch  lor  compltfrD^  O  C  grcnitrHiing  and 
ruwesi  possibto  SWR   Hsight   9  S  n/2.98  nTetera 


|j        Model  2  MCV-  6    S  uperTrombonij  * — Sarne 
Aji)^'^  mdv^rKsti  l^j^ture^  AS  the  tws^  2MCV  buf  a 

^^  '  fi^      ^ave>0tiigth      taltef      wrth      as3iMiQnM 
■^     ^  'Trcjrfitpone  '  phasing  ^ei^iion  lor  eddirional 

gain.  HsugHi..  16  76  tv4.8  tneiefs 


\y<^' 


All    auTTEBNUT    ANTENNAS    UMt    stair>te&s    st»B^ 

if  ifof  rrtaiiori  or*  These  «nd  otfier  SUTTEBNuT  producxs 
WTfte  for  cKJr  FREE  CATALOG' 

BUTTERNUT 

ELECTRa^flCS 

405  E.  Market  St.  Lock  ha  rt,  TX  78644 


'n  Magazine  •  June,  1984    79 


Hm  HELP 


tVf  are  happ^  ta  prDVJds  Ham  Help  fist- 
ifiQB  trea,  oft  a  $pBce-avaif»tie  basis  Wa 
ara  nut  happy  when  wa  havs  to  take  tima 
from  ath^f  duUa^  io  decfphar  cryfitfc 
natas  scf9wta(t  iilagihif  oft  doq-earad 
poaicards  and  odd-siia^  Bcraps  of  papm. 
Plaata  typa  oe  pfint  your  rvQU^sf  (ne^ityf^ 
dotibfa  spaced,  on  an  B*ji"xt1"  sheet  of 
paper  amf  use  upper-  and  towercase  tet- 
tma  wh&a  appropriate.  Atso.  ptease  ma^# 
«  "1"  too*  iike  a  n^  nor  an  %''  which 
coy  Hi  fte  an  "©/"  of  art  "'aye.'*  and  so  on. 
Hardens  it  rrtay  be  to  betrave,  we  are  not  fa- 
mUfar  with  avery  pf^9  of  equipfnent  moth 
ufactured  on  Earth  tor  the  iast  50  yeanf 
7limit($  for  four  cooperattoti. 

HwQd  acheitiatic  diagram  tor  the  Spec- 
Ironlcs  DD^1  digital  frequency  dispfay 
which  I'm  usiirg  with  a  Yaeau  FT-101E- 
WIK  maJce  copy  and  fetum.  Ptesse  senci  nx. 

Jaefc  Duncan  KtCNM 

RFD  3,  CmtvlaMr  Drtv* 

Denlaon  lA  51442 

Helpf  I  now  own  a  woffcif>g  N0 109 
gefieral-covftra^  receiver.  I  need  mfofma- 
liori  abour  Jt  so  Itiat  when  it  no  longer 
works,  I  can  find  out  why.  (Also,  I  may 
want  to  pefforrn  modi  flea  tlona  to  It.} 

Afao,  I  have  been  hafVlrM3  &  terrlbte  time 
tryig  to  connect  a  Western  Electric 
fl103SC3A-type  to<ichlone^  pad  to  a 
SOO^type  telephone  set.  Any  help  at  all  will 
be  greatly  appreciated, 

AfKlr«w  W.  Gaunt 

62%  Wathtnglon  Str»«| 

NeWburypDrt  MA  01»S0 


Does  anyone  nave  a  way  lo  convert  a  Ti 
99/4a  computer  Into  a  code  keyboanf? 

&  F.  Knoll  KASTIO 

707  H.  Wttner 

JacfcadA  HI  48202 

I  fieed  an  opefating/iiefvlce  manual  (or 
a  Javelin  model  3100  (North  AmefJcan 
Video  Corp.)  cloaed-circuft  TV  camera. 

Urry  Slaefe  KtUKO 

5DQ0  Chlckw«*d  Or. 
Oolondo  Spi^noa  CO  »0317 

I  noed  any  Inlormatlqn,  manuals,  oi 
9Chematlc&  for  the  AnaJ^b  Type  11 00 
0$<:iilO^ope  wljh  Type  M  16  plu@4n, 

W.  A,  {Waft)  E4dy  K5QDD 
111  N.  Maddux 

Duma*  TX  79029 

I  am  deepefately  looking  (or  a  few  of  the 
miniature  CB  w^lkie-talKies  made  tiy  Data 
Magnetics  Corporation  caiFad  the  Pocket 
Com.  They  were  two^hannel  lOOmW 
units,  model  number  XB^IQO. 

I  am  also  Inlef^ted  in  old  CB  eqij^lp- 
ment  of  all  types  and  cocidltJor^^  Please 
send  info  ajuj  prices. 

D«niila  n.  Staita 

Bdx  dS 

Cfo*  Timlier*  UO  ft5A34 

Please,  wtiere  can  I  find  a  manual  lof  a 
solid-state  OS-BG  acope? 

Riita  Lfiison  KIMOU 

124  a  Grand  Sfravt 

W.  Suff  ieki  CT  060913 

(20a>€e6-2ft71 


CORRECTIONS 


Tr>e  address  for  Ham  hAasterTapes,  as  tt  appeared  In  the  May  "Review"  section,  was 
incorrect-  Tha  new  address  is  13S  East  31st  Street,  New  Yofk  NY  10016. 

JlmGiay  W1XU 
73StaH 


I  am  iDoklriQ  for  schematics  and/or  op- 
erator's manuals  for  the  Regency  Morv 
itoradlo  4-band  receiver  (model  WT4)  and 
the  Johnsor^  Viking  Adventurer  transmit- 
ter (no  model  no.),  i  also  need  crystals  For 
the  xmUler  for  any  of  tho  Novice  band$,  I 
wiil  pay  reaaonablecosts- 

Cafl  Amdt 

BokZIS 
Andale  KS  €7001 

I  need  the  schematic  (oniy^  for  a  Gon^et 
model  G-77  mobile  transmitter  A)$o,  1 
need  a  schematic  (and  possibly  manual) 
lor  a  Calico  (CaUfomla  tnairumer\ts  Ck^.) 
model  8000  digital  voltmeter,  i  will  pay  rea- 
sonable copying  coats  a.nd  poaiage^ 
Thank  you. 

W.  Ricftmond  ¥«34CPO 

521  flawHngs  St. 

LeuJflViile  KY  40217 

A  circutt  diagram  Is  needed  for  a  vin- 
tage racetver  {about  1d4£9  built  by  ttte 
Mack  ay  C^.  for  maritime  communica- 
tions, with  regenerative  control,  Model 
128 AX.  It  covers  .16  kKi  to  340  kHi  In  four 
bAnd9.  Any  help  will  be  appreciated. 

Ken  Hunt  WB70VU 

&&19  Valhalla 

Klamath  Falta  OR  87601 

Mfeed  schematic  diagram  and  manuals 
for  (1)  Lafayette  Model  HAhSOOA  solid- 
state  S-band  receiver,  and  (2)  Kan  Ironies 
Model  80-406  dkect-con  vers  ion  CW  re^ 
ceiver.  Will  pay  copyinfj  costs  and 
posta^ 

M.  K.  dlafften  WItCJF 

12S  Mornings  I  da  Dhve  East 

Briitdl  CT  06010 

1  need  a  schentalic/servlce  manual  tor  a 
Kris  Mech  3-B,  amateur  trands,  10  and  6 
meter,  linear  amp,  serial  #112608.  t  will 
gladly  pay  for  Information! 

William  0.  SRll#nger 

Rl.  2,  B<ix  524 

Wlmisor  NC  27983 

I'd  like  to  hear  from  anyone  who  has 
succesaruliy  interfaced  a  Model  33  Tele^ 
type  machine  to  a  Vic-20. 1  want  to  use  tt>e 
Modei  33  as  a  printer  fof  a  Vic/AtR-l 
system. 

eeb  Howie  WA4ZtD 

Rl.  1,  Su  510 

Union  MS  3d36S 


PR€CI5IOn 
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InlroduciorY  pH<e— Si  8*>.*>5  ppd. 

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Model  N_fT.20SR 

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Model  Y-FT  207fl. 
—fits  into  battery  compartment 
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i  v^ili  be  on  a  student  bicycle  tour  In  the 
Cape  Cod,  Massachusetts,  area  in  the 
month  of  August.  \  plan  to  operate  two 
meters  FM  on  the  trip  Frofn  the  following 
areas:  Truro,  Orleans.  Nantucket^ 
Martha's  Vineyard,  and  Plymouth  and 
would  like  to  hear  from  hams  In  these 
aieAa  lo  find  out  what  tne  £)est  rarvge  re- 
peaters are.  Any  info  will  i^ie  appreciated 
and  acknowledged. 

Jet!  Qomstein  KD2eE 

35  Grien  HiU  Road 

SftrfngneVd  fU  oro61 

1  tiave  t>eeri  inteiested  ih  tiammlng  ^or 
some  time,  but  until  now  have  never  taken 
the  appropriate  time  to  really  look  into 
wh&t  li  necessary  to  get  started.  I  am  a 
mitskjnary  with  ttie  Salvation  Aimy,  aeiV' 
Ing  In  Buenos  Aires,  Argentina^  I  have 
Spoken  with  my  father  in  St.  Louis  a  num- 
ber of  times  with  the  aid  of  a  licensed  op- 
erator hero, 

1  would  like  to  know  how  to  get  start <id 
and  what  ec^uiprrtent  Is  necessary.  I  vmIII 
not  be  able  to  use  a  rig  here  In  Argent ina^ 
as  t  only  have  1  Vt  years  yet  here,  then  wIM 
be  coming  back  to  the  States.  Arvd  here,  to 
be  able  to  u&e  a  ham  outfits  you  have  to 
have  a  complete,  thorough  police  clear- 
ance (tpecause  of  the  trouble  in  the  past 
with  undercover  groups  ysing  the  radio 
against  the  government}.  But  perhaps  I 
can  study  and  get  in  contact  with  a  li- 
censed operator  here  wtio  is  from  itm 
States. 

Can  you  put  me  In  touch  with  someone 
who  can  help  me?  Any  help  that  you  can 
gtve  or  suggest  will  be  greatly  ap- 
preciated. 

Thank  you  again  for  your  help. 

Capltan  Richard  D.  Fofney 

E|«frtto  d*  Sahraclon 

Socursal  3,  Casilla  184 

1403  Buanos  Aires 

Argentina 

Need  the  sctiematic  and  crystal  multl- 
pli<;at(ofi  factor  fof  the  KAAR  FM  TT^QO 
transceiver  {450  MHzJl 

Need  schematic  and  info  on  adding  FM 
capability  to  the  R-482/URB-3S  receiver 
{22&40QMHZI. 

Haroy  D,  Dorai^an  WBBSKV 

4890  PtKienIx  Avenue 

Fair  Oaks  CA  96^28 

Recently  I  met  a  young  lady  wf>o  is  tra^ 
efing  to  Southern  Yemen  this  summer  to 
be  a  missionary  for  two  years,  i  offered  to 
try  to  set  up  a  schedule  with  a  ham  oper« 
alor  in  Yemen.  Weil,  I'm  sure  you  already 
know  my  problem— the  moat  recent  infor- 
mation I  have  does  not  list  South  Yemen 
as  allowing  thind-|}arty  traffic  or  reciprocal 
operating  ticenses.  Do  you  imow  U  the  US 
Embassy  there  operates  a  ham  or  MARS 
station  (I'm  in  the  military),  and  If  so,  what 
would  be  the  best  wmy  to  set  up  a 
schedule  so  thiat  she  could  send  traffic 
tMCh  trome?  I>o  you  tiave  any  other  Ideas 
on  tiow  we  could  *ork  around  liie  third- 
party  traffic  regulations?  She  will  tse  work- 
Lng  at  a  hospital  In  an  American  com- 
pound only  a  few  bours  from  the  tJS  Bm- 
baasy. 

You  can  t»  of  tremendous  t>etp  slnt^  I 
have  never  before  attempted  to  set  up  a 
sched^ule  with  a  OX  station  and  am  run- 
ning into  a  iot  of  probtefns  tnat  I  don't 
know  tiow  to  work  around. 

David  Patton  WA4TQB/I 

3410  El  Mon^  Road 

Colorado  Springs  CO  80910 

Wanted!  Atwatef  Kent  sp6»iftw, 

Q.  R.  Qalbralth  K5TVC 

4303  Klngsway  Ddvt 

Farmlngton  NM  S7401 


80     73  Magazine  •  June,  1984 


W4lD^  tie.  ^^e^de/i  ^h.  ^e^iea&fU — 


t>        \Lt 


^"^1 


SGfl2000X  MICROPROCESSOR 

REPEATER 


STANDARD  FEATURES: 


I 


t)ia?  Pulse  Gonvarter 

Aulodlaler- 

Phone  Line  &  "Over  ihe  Air'  Command  Modes 

Touch  Tone  Control  of  Trmeoiit',  'Hanfl  Time*,  Palcti 

Timeout,  TX  InhltMtrReset.  Palcti  InhibiyReset, 

P,L.  On/Oft  (w/optlonal  PL.  board),  etc.  «*! 

Up  to  4  Auxiliary  Functions 

Fui(  tS  Digit  Decoding 

Touch  Tone  Mule 

Unique  Courtesy  tone 

"KefchunK  Killer" 

Timeout  Warning 

Automatic  CW  ID  £  ID  Command, 

JO  Wl^VHF,  40  Wt.  UHF  Xmtfs^       ,^^^^^^-——       ^1 
Fgii  Front  Panel  Metering,  LEC^FQhction  Triiicetors, 
RoiinB  "Local  ConlfoJ"  P^i^—  - 


menta.  en  m^ 

Spectrum  now  makes  3  tines  of  Repeaters— the 
worid  femous  'Super  Deluxe'  SCRIOOOMOOOr  the  Low 
Cost  line  of  SCR77,  and  the  NEW  State  of  the  Art 
Microprocessor  Controlled  SCR2000X  Line  of 
Repeaters! 


The  SCR77  Repeaters  maintain  the  quaitty  of 
design,  components  and  construction  which  have 
made  Spectrum  gear  famous  throughout  the  world 
for  years.  However,  all  of  the  "bells  &  whistles'* 
which  you  may  not  need  or  want  have  been  elimi- 
nated—af  a  large  cost  savings  to  you!  The  SCR77  is 
a  real  "workhorse"  basic  machine  designed  for 
those  who  want  excellent,  super-reliable  perfor- 
mance year  after  yem—but  no  fritis!  f  PLM2  Pole  IF 
Filter,  Front  End  Preselector,  and  a  30-40 W  Trans- 
mitter are  the  only"^'bLnlt4n'  options  available:  but 
Autopatch,  Remote  Control,  and  other  equipment 
can  be  connected  via  the  rear  panel  jack.) 

Of  courset  if  you  do  want  a  full  featured/Super 
Deluxe  Repeater,  with  higher  power  {30-150  W},  and 
a  full  list  of  'built-in*  options,  then  you  want  our 
SCR1000M000  or  the  NEW  SCR2000X— The  Ulti- 
mate in  Repeaters.  Available  with:  Full  Autopatch/ 
reverse  Patch/LandLlne  Control;  Touch  Tone  Con- 
trol  of  various  repeater  functions;  'PL';  ^'Emergency 
Pwr.lD'';  various  Tone  &  Timer  Units,  etc. 


Repeater  shown  In  optiorral  cabinet. 

Call  or  write  today  for  details  and  prices!  Factory  Direct  or  through  Export  Sales  Reps  only, 
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^Sea  List  oi  Advortisen  en  page  rf4  73  Magazine  •  June,  1984    81 


ANNOUNCING 

the  premiere  of 


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SOCWL  EVENTS 


UsUngs  in  this  coiumn  am  provided  tree  of 
Gtiargo^  on  a  spaca-avaifabiB  basis.  The  toi- 
9owfng  infofmaiion  &f}£kutd  ba  irtcfud&d  in 
mmf  annonncamant:  sponsor,  aveni  data, 
time,  place,  City,  smte,  admission  t^arge  (if 
any},  taatures,  tatk-in  fr^uencias.  and  the 
name  of  whom  to  contact  tor  fuith^ informa- 
tion. Anrtouncemeftts  must  fee  mc^rved  by  7S 
H&gaiina  by  tne  first  of  the  montn.  two 
months  pftor  to  ttw  month  in  which  tfre  event 
tai(aa  piaoe.  Mait  to  Editorial  Office,  73  Mag- 
92lna,  Pine  St.,  Petarborooffh  NH  03458. 

&l-ACK58Uf^<i  VA 
MAY  31*JUN  2 

Virginia  Polytachnic  Institute  and  St^te 
Univorsity  wid  ho^d  a  new  workBhop.  Per- 
sonal Compute  and  STD  Compute^  tnter- 
facing  fof  Scj«f^ti(lc  Instrument  AutOfrta- 
tion,  on  May  31 -June  2.  1984.  at  VkQlnia 
Tech.  Blacks buro  VA,  The  wark^Kqp  i$ 
f39S.0a  fof  Xt\e  three  <leys  and  will  be  dk 
rected  by  Mr,  David  E-  Larsen.  Or.  Paul  E. 
Field,  Or.  Jonathan  A,  Titus,  and  Df.  ChrtSr 
topher  Titus,  Each  parties  I  pant  will  wire 
and  test  Interfaces,  For  more  Information, 
wrila  Dr.  Unda  Laftel,  CEG.  Virginia  Tech, 
BlackStturg  VA  24061,  or  pt¥3rm  (7Q3j^9ai- 
4940. 

SEASIDE  OR 

The  1964  Oregon  Slate/ARRL  NortN- 
we^tam  DLvtslon  Convention  will  be  heJd  on 
June  1-3, 1664,  at  the  Seaside  Convention 
Center,  Seaside  OR  A  single  convarttion 
registration  ^s  ^,(X3  in  3<fvanc«  and  S7.00  at 
the  doon  a  couple  convention  regiairation 
Is  S7.00  In  advance  and  £9.00  at  the  door;  a 
leer  convention  regi  si  ration  Is  12.00  {chil- 
cfrwi  under  12  wilt  be  admrtted  free^.  Fle^ 
mwlcet  tables  are  $S.(X)  eac^t  per  day  or 
S8.00  each  for  two  days.  Hours  on  Friday 
are  5:00  pm  to  9:00  pm;  on  Saturday,  8:00 
am  lo  9e30  pm;  mnd  on  Sunday,  9:00  am  to 
ZOO  pm.  Snack  bar  food  will  be  avajjat^e.  In 
additkKi  to  the  Ilea  market,  features  will  in- 
clude exhibits,  seminars,  forums,  ladies' 
and  chiltiren's  activities,  an  ARRL  breaks 
fast,  anef  a  Salurday-ewaning  bar>quei  with 
guttti  SpMker  Roy  Meal  KSDUE,  Science 
Editor  of  NeC  Hews.  Taik^n  on  14S,45 
(-600)  and  146.52  simplex.  For  advance 
tickets  for  the  banquet  IS13.50  each|  and 
raglst ration,  send  «  dtwdk  payable  lo  Ore- 
gon State  Ham  Convention  to  Oregon 
State/AHRt  Northwest  em  Dtviaign  Conven- 
tion, PC  Box  920,  Seaside  OH  97136.  Fof 
additional  infCHmation,  call  H5O3>640- 
5*Se,    Th^03V73S^&161,    or    1'(503>644^J752 

QUELPHONTCAN 
4UH2 

The  GueJph  Amateur  Radio  Ctub  (VE3ZM) 
w^ll  hold  the  lOth  annual  Centrat  Ontario 
Amateur  Radio  Flea  Market  and  Computer^ 
feat  on  Saturday.  June  2. 1964,  ffom  6:00  am 
to  «00  pm,  at  Regal  Hall,  340  Woodtawn 
Road  WB«t.  Giieiph  OKT.  GenefaJ  attms- 
aion  Is  $2.00  and  children  12  years  and  un- 
der will  be  admitted  tree.  Vendors'  admis- 
sion Is  $5,00  per  8-foot  apaca.  Doors  will  be 
open  to  ^widors  only  from  6:00  am  and  a 
quantity  oi  3'  x  8'  tabtes  will  be  avajlaMe  for 
rental  for  $5.00  each.  Features  will  include 
commercial  displays,  surplus  dealers,  com- 
puter software  ar*d  hardware,  indoor  ar«d 
outdoor  dispiays,  and  a  refreshment  con* 
OMSJon,  Talk-^n  on  l47J60n47.360 
(VE32MG}  and  .52/.5a  simplest.  For  further 


information,  contact  Susan  Barabus 
VE3BEC  or  Joe  Barabas  VE3BXN  at  (519^ 
624-1404  (Guelp^K  ^^ph  Bart  left  VE3BJX 
at  |5l9>S3&20g7  (Gueiph),  Keni^  GnriatFaJ> 
sen  VE3BYU  at  1519^7434082  (Kitchenet^ 
Fred  Hammond  VE3HC  at  (519^^2-8323 
(Ouelph),  or  the  Guelph  Amateur  Radto 
Dub.  PO  8o)E  1306.  GueJph  ONT  N1H  eN9. 
Canada. 

ST,  PAUL  MN 
JUM2 

The  North  Ai^a  Rapaater  Association 
wilt  sponsor  a  swapfest  and  OMposdion  for 
amateur-radio  operators  on  Saturday,  June 
2,  1984,  In  the  Dairy  Products  Building  at 
the  Minnesota  State  Fairgrounds.  St.  PauL 
Admission  is  $4.00  and  childnen  under  12 
accompanied  by  an  aduft  will  be  aidmitted 
free.  The  hours  are  6:00  am  to  5:00  pm:  ac- 
tivities will  tiegin  outside  at  6:00  am  and  In- 
side at  B^QO  am.  TT^ere  will  be  tree  ovemighl 
parking  for  self-contained  campers  on  June 
1sl.  Features  will  inclu^  exfiitHts^  tooths, 
club  actlviiies.  demonstrations,  and  a  Qiant 
outdoor  flea  market.  Talk  in  on  ^JJ&5  ar>d 
.1&I.76,  For  more  inf Donation,  write  Ama- 
teur Fair,  PO  Bqk  357,  Hopkins  MN  65343. 
or  oalt  j@T2HSO^O0O. 

STEVENS  POIMT  Wt 
JUN3 

The  Central  Wisconsin  Radio  Amateiifs, 
Ltd.,  will  hojd  its  annual  swapfest  and  fami- 
ly picnic  on  Sunday,  Jur»e  3, 1984,  from  9:00 
am  to  4:00  pm.  at  Bukolt  ParK  Stevens 
Point  Wl.  Adult  admrssioo  Is  S2.00.  Selling 
spaces  are  SZSO  per  table  or  (altgate.  and 
indoor  selling  areas  will  be  available.  There 
will  be  food,  refreshments,  arid  picnic 
tables.  Talk4n  on  146.07/67  and  ,^.62.  For 
furlfier  [nfofmation,  contact  Fraitk  Gut** 
W9BCC,  !632  Eli  Is  Street,  Stevens  Point  Wl 
54481,  or  phofie  {414^4-2566,  or  contact 
Jim  B^iak  KA9ACE„  1775  Strongs  Avenue. 
Ste^tfens  Po^nt  Wl  54461,  Of  pnone 
(4UK344^943. 

MANASSAS  VA 
JLJN3 

The  Ole  Virginia  Hams  APC.  Inc.,  will 
hold  the  tenth  annual  Manassas  Hamfeat 
on  Sunday,  Junes,  1984,  beginning  at  8:00 
am,  at  Prince  William  County  Fair- 
grounds, VA  Route  234.  Vt  mile  SOuCf)  Of 
Manassas  VA.  Admission  is  $4,00  per  per- 
son (children  under  12  will  be  a<imitted 
free}  and  there  will  be  no  advance  sales. 
Activities  will  include  25  acres  of  taligat- 
ing  (setups  at  7r00am),  Indoor  commerci at 
exhibits,  breakfast  arKJ  lunch  menus,  a  YL 
program,  and  CW  proficiency  awards. 
Talk-In  on  146.37A97  WA4FPM  (Manassas 
repeater}  and  146.52  simplO)ic.  For  more  In- 
formation,  write  Hamfest,  c/o  Ole  Virginia 
Hams  ARC,  lnc„  Manassas  VA  221 10^  or 
phone  (703)^31-0468. 

CHELSEA  Ml 
JUHZ 

The  Chelsea  Swap  and  Shop  will  l3e 
heldgi^Mnday,  June  3,  1964,  from  8:00 
am  to  2:00  pm,  at  the  Chelsea  Fair- 
grounds,  Chelsea  ML  Tba  donation  Is 
$2.50  In  advance  and  $3.00  at  the  gate. 
Children  under  12  and  non-ham  spouses 
wllf  be  admitted  free^  Table  space  is  S7.Q0 
per  6  feet  (tadies'  tables  welcome)  arid 
tnjnk  sales  are  52.00  per  sp«oer 0«lM  wf  11 
open  for  sellars  at  5:00  am.  There  wilt  ba 


plenty  of  parking,  (ncludlng  special  park- 
ing for  the  handicapped.  Talk-In  on  146^2 
simplex  and  the  147.855  Cheisea  rep«atsr. 
For  moff^  Inlormatton.  write  William  Aften* 
berndt  WBenSN*  3132  Tlmbertine,  Jack- 
son  Ml  49201.  or  phone  (5 17^764-5765, 

PlTTSeunQH  PA 
JIJN3 

The  30th  annual  Breeze  Shooters  Ham- 
test  will  be  held  on  Sunday.  June  3, 19S4, 
fnam  9:00  am  to  4:00  pm.  at  the  White 
Swan  Amusement  Park,  PA  Rte.  60  (Park* 
way  Westy,  near  the  Greater  Pittsburgh  In- 
ter national  Airport.  Registration  is  12.00 
or  3  for  S5.00.  Sheltered  tables  tor  ver>dors 
ire  available  by  aijhrance  r^ is t ration  only- 
Ad  miss  ion  and  riea-market  spaces  are 
free.  There  wilt  tie  food  available  and  ac- 
tivHIes  will  Include  the  family  amusement 
park.  Talk-In  on  .2BiM&  and  29  MH^  For 
further  Infomiation.  please  write  Don 
Myslewski  K3CHD,  359  McMahon  Road, 
Northt  Huntingdon  PA  15642,  or  phone 
(4l2>a63-0570. 

ROME  NY 

JUN3 

The  Rome  Radio  Club.  Inc.,  will  present 
the  32nd  acfltion  of  its  Rome  Ham  Famiiy 
Day  on  Sunday,  June  3,  1984,  at  tock  s 
Grove,  Rome  NY.  AotWllFes  will  Include 
games,  contests,  educational  and  scien- 
tific displays  and  presentations,  and  a 
iarge  ftea  ma/kei.  Good  food  and  bever- 
ages will  be  available  throughout  the  day, 
which  will  be  climaxed  by  a  dinner  and  ttie 
Ham-of-t  he-Year  award. 

KIKGSTOH  PA 
JUM3 

The  Murgas  ARC  (K3YTL)  will  ajxinaor 
1he  annual  Wilkes-Barre  IHamfesi  on  Sun- 
day, June  3,  1984,  tieglnning  at  8:00  am, 
rajn  or  shine,  at  the  109th  Armory,  Marke! 
Street,  Kingston  (across  the  river  from 
Wilkes-Barre).  Admission  Is  £3.00;  chil- 
dren under  16  and  XYLa  will  t>e  admitted 
free.  There  will  be  ^rKJoor  arKi  outdoor  laif- 
gating  at  $2.00  per  space.  Setups  only  will 
be  at  6:00  am  and  tables  and  commerctat 
power  will  be  available.  Talk-in  on 
146.01/Jl  and  .52  simplex.  For  further  in^ 
formftllon,  write  Hamfest  t^ommittee.  PO 
Box  1094.  Wilkes  Barre  PA  16703, 

SOIXTHINQTON  CT 
iUN3 

The  Southfngton  Amateur  Radio  A^so^ 
elation  will  hold  a  ftea  market  on  Sunday, 
June  3,  1964,  at  the  Central  Elementary 
Sct^ool.  Main  Street  | Route  10),  lust  out- 
side Southlngton  Center.  Take  exit  32 
from  1-64  to  Route  10  south  for  1.4  miles. 
The  school  Is  on  the  right,  across  from  the 
Public  Library.  Admission  is  $1.00.  Tables 
are  STjOO  each  in  advance  and  $8.00  each 
at  the  door  (no  tatigatingli  two  people  will 
be  admitted  with  each  table  purchased. 
There  will  be  over  30  tables  of  new  and 
used  ham  equipmenL  and  hot  coffee  and 
refrestiments  wiH  be  available.  Talk-in  on 
146J8f.86  and  145.550  simplex.  For  a  ta- 
bie  reservation,  send  an  SASE  and  check 
{payable)  to  SARA,  PO  Box  284,  Southing- 
ton  CT  06489. 

PRINCETON  fL 
jyN3 

The  Starved  Rock  Radio  Club  (W9Mt<S) 
will  present  its  annual  hamfest  on  June  3^ 
1964,  at  the  Sursay  Ckwnty  Fairgrounds  In 
Princeton  11-  Beglstrailon  la  12.50  li^  ad- 
vance (before  May  20)  and  S3  00  at  1  he  gate. 
There  will  be  a  nominal  fee  for  recreationai 
vehicles.  Features  will  include  a  free  swap 
arva,  commercial  vendor  esdiltrits,  an  ARRL 
seminar,  and  plenty  of  parking.  Good  food 


will  be  available.  Registrants  will  receive 
fiea  coffee  and  doughnuts  at  8:00  am.  Talk- 
in  on  147.12/.72,  1 46-07/ j67,  and  146.52  sinv 
plex.  For  advance  registration  or  more  Ir^ 
formation,  send  a  lai^  SASE  to 
SRRCW9MKS,  RFD  #1,  Box  171.  Oglesby  IL 
61348,  or  prtone  (Sl5f667-4614. 


TERRE  HAUTE  IH 
JtlNS 

The  38th  annual  Wabash  Valley  Amateur 
Radio  Hamfest  will  be  held  on  June  3, 19B4, 
at  the  Vigo  County  FairgrourKto  on  U&41| 
t4  mile  south  of  ^-70.  Registration  is  $2.00 
each  or  3  for  $5.00  in  advance  and  $3.00 
each  at  the  gate  (children  under  12  will  be 
admitted  free)L  A  coverod  12'  x  12'  flea- 
market  space  is  S3.00;  outdoor  ftea^markef 
space  Is  free.  Some  ic  and  tables  wllf  tie 
available  on  a  flrst<;ome  basis.  There  will 
be  computer  and  packet-rad«o  forums,  food 
and  refreshmenis.  and  ovemif^t  camping. 
A  giant  shopping  mall  is  located  nearby. 
For  tickets  end  detailed  infornnatlon,  send 
an  SASE  to  WVARA  Hamfeat.  PO  Box  81, 
Terfe  Haute  IN  47608, 

DALTON  MA 

JUN3 

The  Noirihern  Befkshire  Amateur  Radio 
Dub  Willi  hold  a  flea  madtet  on  Sunday, 
June  3t  1964,  a  I  the  DaHon  American 
Legion,  Royte  9,  DaLton  MA  (near  Plttslleldji. 
Admission  is  $1.00  and  a  few  tables  witi  be 
availaMe  at  no  charge  on  a  r^rst-cof  ne.  fir^t- 
serve  basis.  A  breakfast  and  iunch  bar  witl 
t>e  provided  by  the  Dalton  American  Legion, 
and  free  overnight  camping  wlit  be  penn^t' 
ted  on  a  f lrat<ome.  first-servo  basis.  Talk-In 
on  146S1  (ML  Greylook). 

HUMBOLDT  TM 

JUN  3 

Ihs  HumiDoldt  Amateur  Radio  Qub  will 
liofd  its  annual  hamfest  on  Sunday.  Jurw  3, 
1984,  at  Bailey  Park.  Humtwidt  TN.  Admis- 
sion is  $2.00.  There  wilt  tie  a  flea  market, 
ladles'  activities,  lunches^  refreshments, 
and  flV  parking,  Talk-In  on  I46J37/.97.  For 
more  information,  contact  Ed  Holmes 
W4IGW,  501  N.  iath  Avenue,  Humboldt  TN 
38343. 

eOWUNG  GREEN  KY 
JUN  9 

TTie  Kentucky  C:k>lonel  Amateur  Radio 
Oub  will  hold  Its  2rKl  annual  hamfesi  on 
June  9,  1964,  from  8.-00  am  to  3:00  pm,  at 
the  JG  Pavilion  at  ttie  Southern  Kentucky 
Fairgrounds,  Bowling  Green  KY.  Tickets 
are  S2.00  in  advance  and  $3.00  at  the  door. 
Features  will  include  an  inside  ar^  ovf* 
Side  flea  market,  inside  displays  of  new 
equipment,  tood,  free  coffee,  and  free 
parking.  Talk-in  on  146.25/.85  and  146.52 
simplex.  Fof  further  Information,  write  £d 
Gann  N4HID,  Box  92,  Route  19,  Bowling 
Green  KY  42101,  or  call  {5CE2>«43-8911. 

COEUR  D'ALENE  ID 
iUN9 

The  Kootenai  Amateur  Radio  Society 
will  sponsor  Hamfest  '64  on  June  9, 1984» 
from  8:00  am  to  4:00  pm,  at  the  fslorth  Ida- 
ho Fairgrounds,  Co^ur  D'Alene  fO.  Swap 
tat>les  will  tie  available  at  no  charge;  RVi 
are  welcome  but  no  hookups  will  be  avail- 
able on  site.  The  annual  Friday  program 
will  Include  a  pot  luck  supper  and  dancing 
afterwards.  For  further  information,  write 
Avon  Anderson  WBTWBZ^  N.  t035  Higti^ 
land  Court,  Post  Falls  ID  83654, 

WILLOW  SPRINGS  IL 
JUM10 

The  Six  Metet  Club  of  Chicago,  Inc.,  will 

73  Magazine  •  June,  19S4    83 


hold  Its  27ih  annual  tiamfest  on  Syndft/t 
June  ID,  1364,  at  San(«  Fe  ParH,  91  st  and 
Wo^f  Road.  Willow  Spdngs  1L  (soutHwest 
ol  downtown  ChtcaQoj,  Reg i  si  ration  is 
S2.00  Jn  advance  and  (3.00  at  the  9a te. 
Gales  will  open  «t  6;00  am  and  features 
will  irvctude  a  large  awappera'  row,  dis- 
plays in  the  |»avilion,  ar>  AFMARS  meet- 
ing^ p^nic  grounds,  refreahments,  and 
plenty  of  paiiclng  space.  Tafk4n  on  146^52 
(K90KAJ  and  jr/,97  (KSONA^Tfl,  Fw  ad- 
vanc«  tickets,  contact  Val  Hell  wig 
K9ZWV,  3420  Soum  60iri  Court.  CJcefO  IL 


NEWINGTON  CT 
JUM  10 

Ttie  1Se4  NaHringtCM  Amateur  Radio 
l^jHgue  Flea  Martttft  will  be  neid  on  Sunday, 
Jtine  10,  19S4,  from  9:00  am  to  4:00  pm,  at 
Newington  High  School ,  606  Wlllard  Ave- 
nue (Rte.  173).  Admtsslon  is  $2.00  at  the 
Cioor,  taunting  (weatfi«f  pefmiitFng)  is 
SS.OO,  and  tables  are  $10^00^  DqaIh^  may 
set  up  at  atn  am.  A  pcMion  of  ttie  proceeds 
will  tJe  usad  for  the  NARL  Scholarship 
Furvd,  Features  will  Include  abundant 
amate^jr  radio  and  cofnputer  ©ea/,  free 
tours  of  W1AW  WK)  the  AfVU.  Mus«um 
(from  lOlOO  am  to  2j00  pm|,  aM  TVRQ, 
packet^adto,  and  ATV  demonstrations. 
Talk-in  on  146.52,  144.85/145.45.  Of 
223,24j224^  MHz.  For  mone  InfOfmattoi^, 
contact  Tom  Namnoum  KM10,  55  Spruce 
Sire^.  Newington  CT  OBIll,  or  pho^e 
^03)«66r16lS. 


LEWJSBURG  PA 
JUN10 

The  Millon  Amateuf  Radio  Oub  win  hc^d 
ttteir  13th  annual  hamfest  on  Sunday,  Juno 
10.  1984,  from  6.^  am  to  5:00  pm.  rain  or 
shine,  at  the  WIrttield  Fire  Ckvnpany 
grourKls  on  Route  1S^  south  of  Lewisburg 
PA  and  fi  miles  30tjth  of  exit  30  on  1-80. 
Covared  spaces  are  avaitahle.  RegtstratJon 
is  £3,00  and  wJve^  and  children  will  tie  ad^ 
mitted  free,  Theti  will  be  a  flea  market,  an 
auction,  and  contests,  TalK4n  on  146;37/.f7 
and  145.025/625.  For  firfihef  details,  wnte 
Jerry  Williamson  WA3SXQ,  10  Old  Fami 
Lane,  Millon  PA  17847,  or  phone  {717}- 
742^3027- 


BELLEFOMTAJNEOH 
JUN  to 

Hamtoree  'B4  will  be  held  on  Sunday, 
June  10, 1964.  beginning  at  SaOO  am.  at  Ihe 
Log4fi  County  Fairgrounc^,  E.  Lake  Street. 
Bellefontaino  OH,  Ticket  donations  are 
S2.00  In  advance  and  S2,S0  at  the  door; 
tables  are  $3.00  (no  trunk  sales).  There  witi 
be  food  and  plenty  oi  tree  parking  at  the 
fafrgrounda  Talk-4n  on  147 MfjQQ  and 
14652.  For  lickot  tnformatton^  write  Slew 
KIddef  N8ET0.  Box  265.  Russell*  Point  OH 
43346.  or  call  1^313)^43^099. 


DEAL  m 

JUN  10 

Tfie  Jersey  Shoee  Chaverlm  will  spOh* 
SOr  the  third  annual  Kam  S  Computer  Feat 
on  June  10. 1964.  from  9i)0  am  lo  4:00  pm. 
at  tfie  Jewish  Commynlty  Center.  100 
Grant  Avenue,  Deal  NJ  (le^s  than  50  mllu 
from  NYC  and  70  miles  from  Phhtadelphla). 
Admission  is  S3u00  per  persoti  and  chll' 
dren  under  twelve  and  XYLs  will  be  admit* 
ted  free.  Indoor  tables  aie  $6.00  and  tall- 
gating  spaces  are  13.50  each.  For  re- 
served spaces,  sand  an  SASE  and  pay- 
ment by  Jurw  isl  to  Jersey  Shore  Ham- 
fast,  PO  Box  192,  West  Long  Branch  1^ 
07764.  Tatk4n  on  T47iH5 ^  6.  145.1 10 -  .6, 
and  146.52  simplex  ^  For  n^ra  informailon, 
call  Arnold  W2GD3  at  (201)^222-3009. 

84    73  Magazine  •  June,  1984 


DAYTON  OH 

JUN  1&-t7 

The  ninth  annual  MACC  Computeftest 
will  be  field  on  Jyne  15-17,  1064.  at  tfie 
Dayton  Convention  Center.  Tickets  are 
$5.00  until  May  31st  and  $6.00  thereaftef. 
Features  will  include  commercial  eKhibita. 
a  cQinpyter  and  electronica  (lea  market, 
seminars  and  mJnKOurses.  a  compirter 
film  program,  a  iios|>iiality  $utt^,  and  cofi- 
tests.  For  mora  information,  write  Com- 
puteriest  84,  PO  Box  24505,  Dayton  OH 
45424. 

CORTLAND  NY 
JUN  16 

The  2nd  annual  SARG  Hamfest  and 
Flea  Market  will  be  hetd  on  Saturday,  Juno 
16,  1964,  from  6:00  am  to  5:00  pm.  rain  or 
*hine.  at  the  Corltand  County  Fair- 
grounds, Cortland  NV  {Exit  12  off  1-61,  mid- 
way between  Syracuse  and  Bingham  ton). 
The  donation  is  S2.00  and  |r.  ops  under  12 
ind  XYl-a  will  be  admitted  free.  Indoor  ta- 
bles and  spaces  are  $3.00  each  and  undef- 
covef  (pole-barn)  spaces  are  $2.00  each. 
There  will  be  indoor  and  outdoor  flea 
markets,  acres  of  free  parking,  and  re- 
freshments, Talk-In  on  .52  simplex^  For  ta- 
ble  and  ^p^ce  reservations,  send  a  ef^eck 
to  Elmer  Fuller,  Treasuraf,  129  Ohatsea 
Twins,  Cortland  NV  13045.  For  more  de- 
tails, contact  Bud  Jackson  K2Z£a  Sky- 
line  Amateur  Radio  Club.  6  Sunnyfleld 
Drive,  Cortland  f^Y  13045. 

DUNELLEN  NJ 
JUN  16 

The  Raritan  Valley  Radio  Cfub  will  hold 
Its  I3tti  anrHjal  hamfest  on  Saturday.  Jur>e 
16, 1964,  beginning  at  6:30  am,  at  Columbia 
Park,  Dunelisn  NJ,  Donations  tor  lookers 
are  S2.00  each;  set  lets'  spots  are  $5.00  each 
liable  are  no4  suppiiedtt  Food  and  dirink 
will  tie  available  ai  the  refr^hn^ent  stand. 
Talk-in  on  14€.02&.62S  (W2QW/Ri  and  14S.S2 
simplex.  Advance  tickets  may  be  purchased 
from  any  club  mamber  For  furlfier  Infomia- 
tiofv  call  Ja^  Fisher  W2IWK  at  (201)- 
756-2546,  Of  Ted  KopI  WB2TKU  al  (201>725- 
3461  t^etween  10:(S0  am  and  10.-00  pm. 

CnOWN  POINT  IN 
JUN  17 

The  Lake  County  Ondcaria)  An^teur 
Radio  Club  will  hold  ita  I2th  annual  Dad's 
Day  Hamfest  on  June  17,  1964.  6:00  am  to 
2:00  pm,  at  the  Industrial  Arts  Building  at 
the  Lake  County  Fairgrounds,  Crown  Point 
IN.  Tickets  are  92.50,  All  events  will  be  held 
indoors  and  there  will  be  plenty  of  parking 
and  food.  Talk-in  on  147.S4/.24  and  ,52.  Fof 
further  Information,  contact  Bill  De  Oeer 
W9TY.  Hamfest  Chairman,  3601  Tyler  Street 
GaJY  IN  46408. 

FREDERICK  MD 
JUN  17 

The  Ffederlok  Amateur  Radio  Club  wfU 
hold  its  7!h  annuat  hamfest  on  June  17, 
19S4,  from  8:00  am  to  4:00  pm,  at  the  Frodw- 
Ick  Fairgrounds.  Admission  is  $3.00  and 
YLs  and  children  will  be  admitted  free.  Tail- 
{latefB  will  be  charged  an  additional  $Z0O; 
exhjb4tt3r&'  tables  are f  10.00  for  Ihe  first  and 
$5.00  for  each  additional  or^  Gates  will 
open  for  exhibitors  at  6:00  pm  on  June  16, 
T964r  and  overnight  security  will  tie  provide 
ed.  Overnight  parking  wilt  be  ^yne^comed. 
For  turtfter  information,  write  Jim  OevlFbi&s 
WA3FUJ,  915  Pine  Avenue,  Fredehck  MD 
21701,  or  phone  (301>«62-5784. 

SANTA  MARIA  CA 
JUN  17 

The  Satellite  Amateur  Radio  Cli^  wilt 
hold  its  1964  Santa  Maria  Swapfest  and 
Santa  Maria  Style  Barbecue  on  Father's 


Day,  June  1 7,  ^964,  b&glnnlng  at  9:00  am,  at 
the  Union  Oil  Ckxnpany  Newlove  Picnic 
Grounds,  sooth  of  Santa  Mana  CA,  off  US 
101.  The  barbecue  wilt  be  served  at  1^00  pm 
and  tickets  are  $7 Jd5  tor  adults  and  $3^  for 
children.  In  addition  to  the  bart>ecue4  tt>ere 
will  be  swap  tables,  contasta,  and  gamaft. 
Talk-in  on  14e34/.94  {WB6lfY/R>  and  7230 
kHi  LSBw  For  ftirttter  informatiOfi,  tickets,  or 
swap-table  reservatior^  ($3.50  per  space), 
please  write  Satelliie  Amateur  Radio  Club 
Swapfest,  PO  Box  5117.  Vandenberg  Air 
Force  Base  CA  93437,  and  make  checi^ 
pay^ito  to  Santa  Maria  Swapfest 

LAS  VEGAS  NV 
JUN  21-24 

The  YL  IntwnatlonaJ  Single  Sidebarwl 
System's  annual  cofweniion  will  t3e  held  on 
June  21-24, 1964,  at  11^  Sahara  Hotel,  Las 
Vegas  NV.  Delu)(e  accommodations  and 
RV  parking  are  availabie  for  reasonable 
rates.  Planned  activities  Include  a  tour  of 
Hoow«f  Dam,  a  Lake  Mead  cmJse,  a  gala 
stage  sftow.  a  cocklail  party,  a  t>anQuet, 
and  a  breakfast  buffet,  as  well  as  the  OX 
forum  and  business  meetings.  YLRL  ladles 
are  invllod  to  meet  Thursday  evening,  June 
21 ,  at  3:00  pmu  A  convention  station  will  be 
operating  on  14,332  kHz.  For  tximplete  de- 
tails and  a  registration  packei.  send  a  busi- 
ness-size BASE  (37«  postage)  to  Jan  Weav- 
er N7YL,  2195  East  Camero  Avenue,  l^as 
Vegas  NV  89123. 

ELGIN  tL 
JUN  21-23 

The  Antii|ue  Radio  Club  Of  America  and 
the  Anttdue  Radio  Club  of  tlHr»Dis  will  hold 
Radiofest  64  on  June  21^23,  1984,  at  the 
Holiday  lnr>.  1-90  and  llilnois  31.  Elgin  IL  An- 
tique and  classic  amateur  equipment  of  all 
kinds,  as  well  as  other  vintage  radio  mem4> 
rabiiia,  will  be  on  display  and  tor  sale.  Ama* 
teur-radio  participation  is  welcomed.  Talk* 
iri  on  146.52.  For  more  details,  write  Joe 
Willis,  BoK  14732,  Chlca£K>  tL  60614. 

LIVONIA  W 
JUN  29*30 

The  Uvonia  Amateur  Radio  Club  will  host 
the  1964  ARRL  Michigan  State  Convention 
on  June  29-30.  1384,  on  the  campus  of 
Sctiooicrafi  College.  16600  Haggerty  Road 
a!  Seven  Mita  Road,  Uvtmia  Ml  (22  miles 
northwest  of  downtown  DatroltJ,  School- 
craft Is  easily  accessible  via  interstates  75, 
275,  96,  Of  94.  The  Swap-N^hop  will  be  In 
Ihe  noJn  gymnasium,  and  one  o<f  the  two 
parkirig  lots  will  be  set  asi^da  lor  trunk  saJes, 
Ma|ar  exhibilors  will  be  m  the  swap  area,  if 
requesled.  Exhibitors'  setups  will  tra  on  Fri- 
day, June  29th.  from  12:00  noon  untii  10:00 
pfTi,  and  ttie  displays  wilt  t^  open  on  Satur- 
day, June  30th.  from  8:00  am  imtil  SOO  pm. 
Tfiere  will  be  security  provi^d  on  Friday 
nights  For  more  Information^  write  Wayna 
W.  Wiltse  KSBTH.  General  Chairman,  1964 
ARRL  Michigan  (Convention  Committee^ 
1446B  Bassett  Avernje,  Uvonia  Ml  46154. 

SWIFT  CURftENT  SASK 
JUN  30 

The  Saskaictwwan  Hamfest  will  t>e  field 
on  June  30,  1964,  in  Swift  Current  SASK. 
Registration  will  t»e  the  evening  before. 
Features  will  Include  contests,  displays,  a 
ladies'  program,  and  a  banquet.  For  more 
details,  contact  the  Saskatchewan  Item- 
Isst  Commmae.  Box  6,  Swtfl  Cufrem  SASK 
S8H  3V5,  Canada. 

GRAND  RAPIDS  Ml 
JUN  30 

The  trhdepertdant  Repeater  Assoelatkm 
ol  Grand  Rap4ds  Ml  will  hotd  its  annual 
Hamtestival  on  Saturday,  June  30.  1984, 
ffom  0:00  am  until  4:Q0  pm,  at  the  Wyoming 


islational  Guard  Armory,  44th  Street,  |ust 
west  of  the  U&131  expressway.  Admission 
is  $3^,  Free  tatile  space  will  be  providdd  to 
all  seiiefs  and  dealer  setups  will  be  at  E^OO 
Am.  Pfogcams  will  include  satellite  opera- 
tions, packet  radio,  a  W5LFL  space  shuttle 
movie,  an  AMTOR  forum,  a  GW  n  contest, 
an  antenr\a  forum,  and  a  shack  pMwe  oorh 
teat  Talk^n  on  147J6an  47.766.  For  ad- 
vance taibte  reservations  or  for  more  infor- 
mation, can  UneJa  Hufley  WD60KW  at 
{616H57-1253.  or  write  IRA,  562  92nd  Street 
SE.  Byron  Cenler  Ml  43315. 

MAPLE  RIDGE  BC  CAN 
JUN  30-JUL  1 

The  Maple  Ridge  ARC  will  host  Hamfest 
"84  on  June  SO-Juiy  1.  1964,  at  the  Maple 
F%dge  Fatrgroiinds,  30  miles  east  of  Van- 
couwr.  The  registration  fee  is  $5.00  lor 
hams  and  12.00  for  non-hams  over  12  years 
old.  Features  will  irtciude  a  swap  and  shop, 
€orr{fTys(tiAl  displays,  hunny  hunts,  and 
taffies'  and  chikiran's  pfognutis.  Food  and 
eafnper  ^laoe  with  electricity  wit!  be 
avaiEable,  Talk-In  on  146.2D/.80  and 
146-34/94.  For  more  Information  or  pre- 
registration  (20%  off  gate  fee),  coritaci 
Maple  Rkdoe  ARC.  Box  292,  Maple  Ridge 
BCV2X7G^ 

OVEFtLAND  PARK  KS 
JUL  4-7 

The  MotuHfi  Arrdteur  Radio  Awards  Club, 
Inc^  will  fwld  the*r  annual  convention  from 
Wednesday  to  Saturday,  Juty  4-7, 1864,  at 
the  Holiday  Inn  in  Overland  Park  K5.  There 
will  be  a  plcnrc  for  earty  arrivals  on  Wedrws- 
day  evening,  and  on  Thursday  there  will  be 
area  tours  and  a  dinner  theater  O1  Friday 
there  will  be  antenna  and  computer  forums^ 
and  on  Saturday  morning  the  annual  busi- 
nees  meeting  will  be  held.  The  hospitality 
suite  will  he  open  durtr^  ttte  entire  convert 
tion.  For  more  information,  send  an  SASE 
lo  a  1_  Dyson  KOAYO,  R1,  Bo*  230  M,  Da 
5010  KS  66018. 

MAHOPAC  NY 
JUL  7 

The  Putnam  Emergency  Amateur  Re- 
peater League  (PEARL)  will  hold  its  3rd  an- 
rvuai  hamfest  on  Saturday,  Jufy  7,  1964,  (ram 
9:00  am  to  4:00  pm,  at  St  John's  Scfio6l 
Morwi^ior  OlBrteii  Boulevard,  Mahopac 
NY.  Genera!  admission  is  51. 00,  indoor 
tables  are  $5.00  each,  ar>d  outdoor  tall  gat- 
ing Is  $4.00.  Talk^n  on  144535^1 45,135  arKl 
14652.  For  advance  regisiratkm  afd  mo^e 
information,  comact  Frank  Konecnik 
WB2RTP.  R01, 244  C,  Carmoi  NY  10512. 


FARIBAULT  UN 
JUtT 

The  Faribault  Amateur  Radio  Dub  will 
tvold  its  3rd  annual  swapfest  on  Saturday, 
July  7, 1964,  from  9:00  am  to  3iX}  pm,  at  Rice 
Courvty  Fairgrounds,  Fartbaun  MM.  Tables 
are  available  only  by  r^ervation  tiefore  Ju- 
ly I  SI.  Talk-In  on  146.1 9/,  79.  For  more  infor- 
mation, contact  Mike  Ferguson  N6DGG  at 
(5Q7>744-S14S  after  5fflO  pm. 

OAK  CREEK  W1 
JUL  7 

Ths  5<xjth  Milwaukee  Amateur  Radio 
Club  will  hold  Its  annual  swapfest  on  Satur- 
day, July  7, 1964.  from  7:00  am  to  approxi- 
mately S.'OO  pm,  at  the  American  Legion 
Post  #434,.  9327  Sbuth  Shepard  Avenue, 
Oak  Cre^  Wl  53154.  Admission  is  $3.00  per 
person  and  Includes  a  "Happy  Hour"  with 
free  beverages.  Parking,  a  picnic  area,  hot 
arvd  coJd  &andwlcl>es,  and  irQuid  refresh- 
ments will  be  availably  Th^re  will  be  fres 
overnight  camping.  Talk-In  on  146.94  MHz 
FM.  For  more  details,  including  a  local 
map,  write  South  Milwaukee  Amateur  Ra- 


indoor  and  mitdoor  programs,  and  special 
events  ror  tftdies  and  childrerL  Rv  further 
informat^Qn,  contact  J^oxa  Hajtlkatnen 
0H7OO,  KauppaNatu  45,  SF  70100  Kuopio. 
Rntand. 

GUCIERPAflKlfr 
JUL  20-22 

The  Greal  Palls  Area  ARC  wItt  |>reoon1 
llw  50th  anniial  Glacjer-Walenon  Inisma- 
tlOfiaJ  Hamfeat  on  July  2D-22,  19d4,  *t 
Ttitm  ForNo  Campground  on  th«  southern 
edge  of  Glaclar  National  Park.  Pro-r^gis^ 
t  rat  ion  Is  Sd.50  and  Includoa  Satuitlay^ 
nlgPit  dinner  (bring  own  meat  and  utensils) 
and  SLinday^morning  breakfast,  TalMn  on 
,52  and  .34^.94.  Fof  more  Infomiatlon. 
send  ati  SASE  to  StiirleY  Smith  KC70A, 
1822  t4tfi  Av#nu«  South.  Great  Falfs  P^ 
59405, 

PETOSKEYIII 
JUL  21 

The  Straits  Area  ARC  will  hotd  Its  annual 
swap  shop  and  computer  demonstjral^on  on 
Jtjiy  21. 1964.  from  9:00  am  to  2:0D  pm.  in  the 
4+1  Building  at  the  Emmei  County  Fatf- 
grounds.  Admission  is  £2.50  and  tables  are 
SS.0O  each;  setups  are  at  SiX)  am.  RV  camp- 
ing wltl  be  available  nearby.  Talk4n  on 
146.67  ar>d  JSZ  For  mofe  details,  write  Irene 
8teln  KAflNKS,  4437  Robinson  Road,  Pelia- 
ton  Ml  43769.  or  ptione  (6t€^63a«9ea 

EUGENE  OR 
JUL  21-^ 

Tt>e  dth  annual  Lane  County  14am  Fatr 
will  be  held  on  Ju^  21-22. 1984,  at  the  Ore* 
gon  NatJOf^l  Guard  Annnory,  2515  Centenni- 
al (across  from  Autzsn  Stadium),  Eugene 
OR.  Doors  will  open  at  SjOO  am  both  days. 
Registration  and  swap  tatiiea  are  $5,00 
eicti.  Because  ol  hmlted  space,  a  nocv 


refundable  reservation  is  required  For  swap 
tallies  (nrtaximum:  2^  In  addition  to  swap 
taUes,  features  wtll  Include  a  2-meier  bun- 
ny hunt^  techrvlcal  seminars,  computer 
demonstrations,  license  ejfams.  btngo.  a 
kiddie  korner.  arvl  women's  activitiee. 
ITiere  will  be  an  af^^y  snac^  bar.  free  park- 
ing for  RVs  (no  hookups),  and  a  Saturday 
pot-luck  su|>per  at  S:00  pm,  Talk-In  on 
146.28/86.  147  J6/^  and  on  ,&2/.5E  For  ad- 
vance  tk^kets  or  laMe  r^^rvatlons,  send  a 
cli^k  payable  to  Lane  County  Ham  Fair 
and  &n  SASE  to  Tom  Temby  WB7WPU, 
Treasurer.  3227  Crocker  Road.  Eugeru  Oft 
97404,  or  phone  (503>*89^17S1.  TkAel  p^k- 
ets  may  also  be  picked  up  at  the  pra-regis* 
tratton  table  at  the  Ham  Fair. 

WHEEUNGWV 
JUL  22 

The  Triple  States  Radio  Amateur  Club 
will  hold  its  6th  annual  Wheiltng  WV  Hairv 
f ^  on  Sunday,  July  22,  1964,  trom  9:00  am 
to  4iX}  pm,  at  Wheeling  Park,  Admission  Is 
S3.0O  and  children  12  and  under  will  be  ad- 
mitted free.  Dealers  are  welcome  and 
tables  are  available.  Thefe  will  be  a  flea 
n^rket  and  auctions,  all  under  cover.  Re- 
freshments and  free  perking  will  be  avail- 
aWe.  Talk4n  on  I46^t/Jl  and  147.75^.15. 
For  a  four-page  brochure  with  mote  Inform 
mation  and  a  map,  contact  TSRAC,  Box 
240,  RD  t  Adena  OH  43901,  or  phone 
(|614>64&3930. 

BEAVERTON  OR 
JUL  27-29 

The  Willamette  Vat^ey  DX  Club  will  hold 
the  19B4  OX  Convention  on  July  27-29« 
198^,  at  the  Greenwood  Inn,  Beaverton 
OR-  For  further  Information,  write  Bob 
Hemdon  W7XN.  §07  Andower  Place,  Port- 
land OR  97202,  or  plM»na  (503>-232-2740. 


HOUGHTON  111 

JUL  23 

The  Copper  Country  Radio  Amateur  ASr^ 
sociation  will  host  the  1964  Upper  Penin- 
sula Hamfest  on  July  28,  1964,  a1  the  Me- 
mc^al  Union  Cafeteria  on  the  campus 
of  Michigan  Techr>o(ogical  University, 
Houghton  Ml.  For  further  Intormatton, 
wfite  Howard  Junk  in  NBFHF,  Co-Chatf- 
man.  UP  Hamfest.  106  West  South  Street, 
Houghton  Ml  49931,  or  phone  f906H82- 
4630. 

WEST  FRIENDSHIP  MO 
JUL  29 

The  BattlmoFfi  Radio  Amateur  Televi- 
sion Society  (BRAT5}  will  present  the 
Bf^TS  MarytaiKl  Hamfest  and  Com  put  sf- 
Test  on  Sunday  July  29, 1984,  a|  the  How- 
ard County  Fairgrounds,  Boute  144  at 
Route  32,  adjacent  to  Interstate  70,  West 
Friendship  MD,  about  15  mii«s  west  of  the 
Baltimore  Beltway  {695}.  Table  sates  are 
by  advance  reservation  only;  indoor  tabiea 
along  the  wall  with  ac  are  120.00  each  and 
indoor  tables  in  tt>e  center  ol  the  lloof 
without  ac  are  Si 0.00  each.  Quantity  disr 
counts  and  tx>oths  are  available.  There 
will  be  plenty  of  outdoor  la  I  (gating  ar^  RV 
tKOku^  will  t)e  available.  Dealer  setups 
begin  Satur^y  at  2:00  pm  with  overnight 
security  provided.  Talk<4n  on  146.76 
(^flOOJ,  147.03  (  +  600K  and  .52  simplex. 
Fof  table  reservations  and  more  Informa- 
tfon.  write  SRATS,  PO  Box  5915,  Baltimore 
MD  2120B,  or  call  Mayer  Zimmerman 
W3(^K  al  (301>€55-7S1Z 


NASHVILLE  TN 
JUL2& 

the  Radio  Amateur  Transmittlfig  Society 
will  bokj  the  s^icth  annual  Nashville  Hmn 


and  Computer  F^t  on  Sunday.  July  29, 
1964,  from  R-OO  am  to  3.30  pm,  at  the 
Nashvilfe  Municipal  Auditorium  at  ttte  in- 
tersection of  James  Robertson  Parkway 
and  Gay  Street  in  downtown  Nashville  TN. 
There  will  be  no  admission  charge  and 
tables  wilt  t>e  available  for  S5.00.  I^or  further 
InfonnatLon,  sefwi  an  SASE  to  Willie  Porter 
KB4BLL  4907  Idaho  Avenue,  Nashville  TN 
372!»- 

TRAILBCCAM 
AUG  4 

The  Beaver  vailey  Amateur  Radio  Club 
will  hold  a  swapfest  on  August  4,  19&4, 
beginning  at  10:00  am.  at  the  Cofninco 
Arena,  Trail  BC.  Talk^n  on  ^4GJ&4J24.  For 
further  infomiation  and  r^^rvaMons  for 
table  space,  please  contact  BVARC,  do 
3796  Woodland  Drive,  Trail  BC  V1 R  2V7. 

LAFAYETTE  IN 
AUai9 

The  Tippecanoe  Amateur  Radio  Associ- 
ation will  hold  Its  13th  annual  hamfest  on 
Sunday,  August  19^  1964.  beginning  al 
7:00  am,  at  the  Tippecanoe  County  Fair- 
grounds, Teai  Road  and  IBth  Street,  La- 
fayette IN.  Tickets  are  S3.00.  Features  wifl 
include  a  large  Kea  market,  dealers,  and 
refreshments.  Talk-in  on  ,13/J3  arkd  .52. 
For  advance  tickets  and  more  informa^ 
tion.  write  Lafayette  Manifest,  Route  1^ 
BoK  63,  West  Point  IN  47992. 

TRUMANSeURG  NY 
AUG  25 

The  Fi^ng^  Lak^  Hamfest  wifi  be  he^d  on 
August  25,  1964,  at  the  Tiumanaburg 
Fairgrounds,  12  miles  NW  of  Ithaca  NY. 
There  will  be  e^lblts.  a  ftea  market, 
refreshments,  and  overnight  camping.  Fot 


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88    73  Magazine  •  June,  1984 


dio  Ctub,  PO  Boy  102,  South  Mrlwaukee  W1 
53172, 

AL£XAMDER  NY 

Tbe  Gefiesoe  Radto  Amateurs,  Inc..  will 
hold  the  BaiavJa  Hamfesi  on  Sunday,  July 
S.  1984,  fTom  7^  am  10  5^30  pm,  ^1  tiie  AIax- 
antle*  Rfsmen's  Grounds.  Rte  98,  AJ«t- 
^ndgf  MY,  Atimlsoion  is  $3.00  In  aiJsrance 
befbTG  Jufw  22.  I9ft4,  and  $4.00  at  Ihe  dOQn 
TTid  commercial  ^jchlbit  area  wiil  open  ai 
9:00  am  and  there  will  be  hot-air-ball pqfi 
rictet.  Activltt^  will  include  bfaakfast  M 
6dOO  am,  a  CW  cofitesi,  OM  and  YL  pit> 
grams,  a  52  ch^d^-ifi  contest,  a  Ilea  markef , 
a  chicken  barbecua,  and  free  camplnfl 
(eleetriclty  is  S2,00).  Talk4n  on  6,52  a/KJ  4.7 1/ 
5.31  {W2RC)Ci  Fof  furthet  Information,  ctmv 
lacl  GHAM,  PQ  Box  572,  Batavia  NY  t402a 

BOWLING  GREEN  OH 
iUti 

Th©  20t*i  annual  Wood  County  Ham-A- 
Rama  will  be  held  on  Sunday.  July  8. 19B4, 
beginning  at  S:00  em,  at  the  Wood  County 
Fairgrounds.  Bowling  Groen  OH,  Admla^ 
9i0fi  and  parlting  are  fre^.  Trunk  aaJes  and 
fodd  will  bt  avail  atH&  Advance  tabt«  rent- 
als are  $5.00  and  are  for  dealers  only.  Sat- 
urday will  be  available  for  setups  until  @:l>0 
pm.  Talk^n  on  52.  For  more  information  or 
dealer  rentals,  s&nd  an  BASE  to  Wood 
County  ARC,  c^  Craig  Henderson,  Bom  366, 
Luckey  OH  4:M43. 

SHEBOY&AN  Wl 
JU114 

The  fifth  annijal  Sheboygarv  County 
Amateur  Radio  Glut>  Lakashore  Swapfest 
and  Brat  Fry  wilt  be  held  on  July  14, 1964. 
from  lOiX)  am  1o  4-00  pm.  at  the  Wiieon 
Town  Hall.  »outh  of  Sf>eborgan  Wt.  Tabtffi 
are  free  and  earring  li  available  ai  Terry 
Andrfi  State  Park.  For  a  f  tyttr  arxl  other  inlor- 
matlcn,  wrJte  Julian  E.  Jetzer  KRSS,  QA€0 
Hawthorn  Road,  Sheboygan  Wl  S30Q1.  or 
phone  {414H57'3386  after  51»  pm  COfT. 

MILTON  ONT  CAN 
JUL  14 

The  Burlington  Amateur  Radio  Club  will 
hoot  the  tenth  annual  Ontario  Hamfest  on 
Jutr  14. 1964.  from  7:00  am  to  4:00  pm,  at 
0%  fairgrounds  in  Milton  Of*T-  Tickets  are 
$Z50  \n  advance  and  $4.00  at  \\m  gate. 
Weekend  camping,  free  packing,  and  free 
flea-markel  tables  will  be  available.  Fea- 
luriis  wil]  include  indoor  commercial  cNs^ 
plvyt  as  well  as  the  tradlttonal  events.  Talk- 
In  on  2VB%  (dub  repeater).  For  rnore  de- 
tails, contact  BARC,  PO  Box  836,  Burl- 
ington ONT  L7R  3Y7,  Canada, 

EAU  CUURE  Wl 

JUL  14 

The  Eau  Clafre  Amateur  Radio  Club  will 
hohJ  lis  aniiual  hamfest  on  Saturday,  July 
14, 1964.  from  6300  am  lo  4fl0  pm,  at  the  4-H 
tMJtIdings  ^n  Eau  Claire  Wl.  Tlck^la  vn  S2.00 
In  advarwe  and  ^  .00  at  the  door  tables  ar>d 
coffee  are  free,  Talk-^n  on  3i/,9i  and  52 
simpIeK-  For  more  intomiahon  and  tickets, 
send  an  SASE  to  Qene  Ufiberg  KAdDWH. 
2B40  Satufn  Av^^ue.  Eau  Oaire  Wl  S470a 

AUGUSTA  NJ 
JUL  14 

TTie  Sussex  County  ARC  wtll  sponsor 
SCARC  m  on  Saturday,  July  14,  1964. 
beginning  al  8:00  am,  at  tfie  Sufi&ex  County 
Fairgnsunds,  Plains  Road,  oH  Rie.  206, 
Augusta  HS.  Admt^ion  Is  S2.00.  Indoor 
t^les  are  S&OO  in  advance  ard  l&OO  at  tt>e 
door,  lailgat«  space  Is  S4.00  in  advance  and 
JSOO  at  the  gate.  There  will  be  food  and  re- 
fresh ments  and  ptenty  of  tree  parking.  Talk* 
In  on  J90/.3O  and  52  simplex.  For  further  Irv 


formation,  write  Donald  R.  Stickle  K20X. 
Weldon  Road,  RD  #4,  Lake  Hopatcqng  NJ 
07649,  Of  phone  t20l>^63H0677. 

CHARLESTON  SO 
JUL  14-15 

TfYe  Charleston  Amateur  Radio  Society 
will  ho(d  its  ani^aJ  hamfest  or^  July  t4-lS« 
19B4,  at  ttie  Omar  Shhna  Temple.  TalK-in  on 
t44l&.79,  Fof  furttwf  infoTTTiatlon,  write 
Hamfest  Committee.  PO  Box  ?0341, 
Charieston  Heigh  is  SC  29406. 

KMS5EVAIN  MAM  CAN 
JUL  14-15 

The  2l9t  annual  international  Hamfest 
wilt  be  held  on  July  14^15,  1984,  at  the  I rv 
twnatiorval  Peace  Garden  betweefi  Dun- 
Mllh  ND  arK)  ^^ssevain  MAN.  Aciivities 


V*l 


1*  »L.--: 


^ji 


will  Include  transmitter  hunts,  mobile 
judging,  and  a  CW  contest.  Excellent 
camping  facilities  will  be  available.  For 
mor«  JfltormaOon,  contact  William  W. 
Bosch  WDtEMY  or  Stanley  E  Kltte4son 
WDISDAJ,  Box  H,  Dickinson  ND  58601. 

LOUISVILLE  OH 
JUL  15 

TliB  Tusco  Amateur  Radio  Club  (WBZX) 
and  the  Canton  Amateur  Radio  Club 
(WaAU  will  present  the  10th  annuai  Hall  of 
Fame  Hamfest  on  Sunday,  July  15,  1984, 
at  the  Mimiahillen  Grange.  6461  Easton 
Street.  Louisville  ON.  Admission  Is  $2.50 
In  advance  and  $3.00  at  the  gate.  Tablea 
a^e  for  rent  on  a  resoAred  hauls.  Talk-in  or^ 
14652/.52  and  147.71/.1^  For  feservatlons 
or  more  Information,  write  But^  Latxjilii 
WA8SHP,  10677  Hazel  view  Avenue,  Alli- 
ance OH  44601,  or  phone  (216)-821-8794, 


LAPOHTEIN 
JUL  IS 

The  combined  LaPorlB4rfictiiQan  City 
Amateur  Radio  Clubs  will  sponsor  I  heir 
Summer  Hamfest  on  Sunday.  July  15, 
1964,  from  8:00  am  to  2:00  pm^  at  the  La- 
Porte  County  Faligrounda,  State  Road  2, 
west  of  La  Porte  11^,  The  donation  Is  $3,00 
at  the  gala.  Good  food,  cold  dilnks,  and 
paved  outdoor  partying  will  be  available. 
For  re^ervatlDns  lor  indoor  tables 
<40«^footK  write  PO  Box  30*  La  Porte  IN 
463Sa 

KllOnO,  RNLAHD 
JUL1fi-22 

The  Amateur  Radio  Club  of  Kuopto  will 
hold  the  annual  hamfest  ol  lh«  Rmtlffi 
Arruteur  Padic  League  (SRAL)  on  Jofy 
19-22. 1964,  m  RauhalahtL  Activities  wilt  In- 
clude SRAL  loruma,  technical  and  DX  talka, 


ANTENNAS  &  TOWERS 


THIS  MONTH'S  FEATURES: 

m-GAIS  EXPLORF.R-14  -  $264. 95  HYGAIS  TH7DXS  -  $399.95 

CVSHCRAFTA3  -  $202.00  CVSUCRAFT  R3  -  $254, 95 

BUTTERNUT  HF6V  —  $106. 00 


(ArressoHfs  in  stock } 


CUHIQXift 


S2O2.0O 
2M,95 
67.95 
67.95 
254.95 
49,95 
87.% 
t5.O0 


A50-5 
617-8 

32-19 
214B 
220B 
41  OB 
4248 


574.95 
IS9  9S 

ftH.011 
7.1.0« 

mm 

74.95 


.■VRX-2B 

$.14.^ 

A147-1! 

44.95 

A 1 47-2  2 

119.95 

416TB 

54.95 

A 144-201 

64.95 

A  144^101 

46,00 

AI4T-MB 

lem 

Stacking  &  Quad  Kitf! 


TH7DXS 

"m5Mk2S 

ExpliiTcr-14 

QK-7Hlaikl-i*n 

392S  C\*nv  Ktl 

:04I1AS 

20.SBAS 


SA99.95 
349,95 
264.95 
74,95 
129.95 
224.95 
299.95 


WIRE  &  CABLE 


RG-2IMJ 
RG-K  U 
RG-K  LI  finiim 
R(J-NX 


0.28/ a 
0.27/rL 
OJS/ft. 


mgjyaiii! 


IKAVT/WB^S  $S9.95 

i4AV0/WB-S  61.95 

I2AV0^S  44.95 

I4HMQ  31.95 

iSHlS  jl95.0n 

V3S  36.95 


[CtiaK  quiht>  EuaniniL"«iJ.  95^#'pltii  ^icyin^> 

Riilor  cahk-^tanjiar&l 

16-22.2-181  0J8/fL 

RoU>r  ijjiblc-hv  V  tlutv 


m  'a 


16-IS.  2-lfil 


ojzya 


ff  UnarcoRohn 

We  stu<4  25G.  45G.  HBX,  A  HDBX  umm. 

AM  acw'^sivnc^  a^^itablc.  FOLl>OVI*H 
towers  ^ippi^  faigbt  pce-peid  k>  youi  QTH' 


ZSG  $46  5CC1. 

45G  109/sea. 

FOLt^OVERS: 

Get  <iur  quutie 

&.  save! 


ROTORS: 

W             y-' 

^   •"-    AR-M> 

S»7.95 

i         rn-^sii 

1 19.95 

I            HAM-IV 

192^ 

IIX 

2JW,«I 

^           HDR^K)0 

450,D0 

'lilin^) 

45U  iihm  fine 

S.09/II. 

(4  p.  t:(ipf5erweld 

(iioliJ) 

o.ia/ft. 

|2ga  ciiffKTwdd 

l^olid} 

0ji/ri, 

hitsmn 

Lt'i  us  hid  tht  M.'3^supportinp 

^  ^^  '^"  a*a:evy:»ffi:s  >i»u  sdca. 

HBX4R  S250.<»  iK^^^fc  ^^^^^^^^  HG-37SS        S625.00 

HBX56  120.D0   JIT^^I  I^Sfl  HG^52SS  900.{M> 

HDBX40  imm   WZJ^  ^m^^J  H(\54HD       1459,00 

HDBX4li  315.00     WP\rt  ^^  HG-7()HD      2300.00 

Shipfn)  frfi|rhi  paid.  Otdfii  umtf  with  Hv-Gain 

antenna,  romr  &.  (^htTa4X\i»nrH-^.  Rtx'ci%v  fra; 

?;hippin^  on  all. 

A  mwerisa  major  imrstmenf  ftf  timv.  money,  and  sweat.  To  he  lertain  mu  ner  what  you 
umit  and  nei*d  to  €i/mpfvte  ytmr  tuMaHaium,  fjrsj  time  arouttd^  we  suggest  you  wme  m  wiih 
v&ur  itemiied  tteedx  and  gvt  our  whiten  proposaL  A  few  exim  days  now  can  saw  weeks  of 
frustration  and  wailing  fater 

Pris:£^  *uhjfLi  tn  ttiarp'  viithiut 


rf  enterprises 

Route  No,  7 

St.  Cfoud.  Mtrynesota  58301 

(612)  255-0855 


ne^vLTt  fir  iiMigkiuon  MimH^iiiy 
Bikf  iftSnJ  r]L~c-|iit  h  rodidlcd 


73  Magazine  •  June,  1984    S5 


mora  Information,  contact  Wanda  Loveloy 
K02X.  443  Jenv  Smith  Road.  Un»lng  r^Y 
14882. 

lAAflYSVILLE  OH 

AUG2S 

Tbe  Unidfi  County  Amatour  Radio  dub 
will  hold  its  8tfi  annijal  hamfi^t  on  Sunciiy, 
Augysl  26^  f9B4,  begirvrising  ai  6.1X)  am,  at 
the  faLrgroufKls  in  Marys vl lie  OH,  Ticitflls 
a/e  $2.50  In  advance  and  S3.00  at  the  gate; 
XYL3  and  cliildren  wbll  be  admitted  ffoe,  A 
i(Mooi  riea-mart^et  space  is  f  1i}0  (no  elec- 
tricity  avairabJe}.  There  will  be  food.  For  fur* 
ther  information  and  tfckefs,  contact  Gene 
Kirby  WaBJN.  13613  US  36,  Marysvllle  OH 
4304a  or  phone  ai3>€44-<>4€e. 

CHEROKEE  OK 

AUG2S 

The  2nd  annual  Great  Sail  Plains  Ham- 
f est  will  be  he^d  on  August  26,  1 984,  from 
9:00  am  to  5:00  pm,  at  the  Community 
B<jildtng  on  the  south  3id4  of  the  Gnuit 
Salt  Ptains  Lake  In  north-cenlral  Okla- 
homa. Faaturas  will  Indude  tachntcal  fo- 
rwns,  Organjzatlonbal  meet  tugs,  Ir^e  swap 
tables,  refreshments,  McM^ce  exams,  afid 
a  noon  pot4uck  dingier.  Ovefnight  camp- 
In^  and  RV  hocKkups  are  aval  labia  at  the 
Lakes  State  Park.  Talk-^n  on  the  147.90^.30 
Salt  Plains  repeat ar.  Fof  more  Infomu- 
tion,  write  Steven  Wi^i  WASLTTO,  Box  222, 
Chaffee  OK  7372S,  or  phona  (4CS>-fi96^ 
3467, 

WINDSOR  IME 

SEPa 

The  Augusta  Emefgency  Amateyf  Radio 
Unit  win  sponsor  tt>fi  1984  ARRL-sanc- 
tloned  Windsor  Hamtest  on  Salurday.  Sep^ 
temt>er  a,  ^964,  at  ir»e  Windsor  Fairprourtds, 


W4 ndsor  M E  The  gate  donat Ion  Is  sti II  $t  .00 
and  camping  will  be  avanabta  on  Friday  and 
Saturciay  nights.  Fealures  will  include  a 
flea  market,  progranis,  speakers,  commer- 
cial dislhbutors,  light  nrbeafSt  and  the  tracfi- 
tional  Saturday  bean  and  casserole  supper. 
Talk'lTi  on  the  146.22/.82  repeater.  Fof  fur- 
tner  infofmatkon.  oooiacl  Deri  Hanson 
NtAZH^  RFD  «2,  BoK  3678,  Greene  ME 
04236,  Of  ptnne  (207^946-7557, 

SAN  ANGELO  TX 
SEPft-t 

The  San  Angeio  Amateur  Rad^o  Clul;»  will 
hold  CEN  TEX  HAMFEST  B*  on  Septomper 
B-@,  1964.  In  the  San  Angelo  Convention 
Center.  Tickets  are  S5  00  in  advance  and 
$6.00  at  the  door.  Hours  fof  Saturday  are 
noqn  to  6:00  pm  and  for  Sunday,  a-00  am  to 
2:00  pm,  Specjial  events  for  the  ladles  In- 
clude a  Saturday  afternoon  tour  of  Fort 
Concho  ard  Old  San  Angolo^  There  will  be 
s^rninars  and  group  meetings  Saturday 
afternoon  and  Sunday  morning,  and  a  re^ 
ception  for  dealers,  followed  by  a  soctaJ 
houf  tor  amateurs,  on  Saturday  night,  Tall- 
in, on  148.34j',94.  For  pre^registratlon  or  ho- 
tei/motel  accommodatlor^,  write  CEN  TDC 
HAMFEST  -84.  PO  Box  375?.  San  AngetoT^ 


AUGUSTA  QA 
SEPie 

The  Amateur  Radio  Club  of  AuguBtft  mm 
hold  its  annual  hamfi^t  on  September  16, 
1064,  at  Julian  Smith  Casino  Park.  Tickets 
are  SI. 00  each.  6  tor  $5,00.  or  13  Jw  $10,00, 
Featum  Will  Include  a  flea  rrkarket  in  the 
partt^ng  lot.  a  baitMCue,  fefre^rnents, 
dealers,  entertainment .  and  on  Saturday 
evening f  a  hospitality  room  at  Ramada  Inn 
West,  Washington  Road,  rooms  108-110. 
Talk4n  on  145.49  -  600.  For  more  informa- 


tion, send  an  SASE  to  D.  F.  Miller  WB4YHT, 
Hamfest  Chairman,  4505  Shav^nee  Road, 
Martirwz  GA  30907.  w  call  H4O4)Me6O^700- 

NEW  KENSllStGTON  PA 
SEP  16 

The  Sicyvlew  Radio  Society  wrtti  hold  Its 
annual  hamfest  on-  Sunday.  September  IB, 
1964.  from  noon  until  4:00  pm,  at  it>e  ciut? 
grounds  on  Turkey  Ridge  Road.  Mew  Kefv 
eington  PA,  Registration  fee  Is  $2.00  arxJ 
vendors'  (oes  are  $4.00,  Awards  will  be 
presented.  TaJk-tn  on  MtM  and  JS2 
sinnpiex- 

WICHITA  KS 
SEP^ 

The  Wk^tilta  Hamfest  wilt  be  held  on 
Septamt«f  23.  1964,  at  Camp  Hiawatha. 
1701  West  51  St  Street  North,  Wicnita  KS 


67204.  Features  will  Include  a  flea  market, 
programs,  and  commercial  exhibits.  Fof 
mofe  infom\ation.  contact  Norm  Tramba 
WAA4WH.  340  S.  Ist.  Cleamrater  KB  67C£2e, 
or  ptione  P16>564^25. 


PAftAMUS  NJ 
OCTI* 

The  Bei'geri  ARA  will  hold  a  Ham  Swap 
'n'  Sell  on  Octobef  14,  1964,  from  8:00  am 
to  4:00  pm,  at  Bergen  Community  College, 
400  Paramua  Road,  Pa  ramus  NJ.  There 
will  be  tailgating  only;  bring  your  own  ta- 
ble, Admission  for  sellars  Is  $4,00;  buyers 
will  be  admitted  tree.  Thousands  of 
spaces  will  be  available.  Talk-in  on  ,79/.19 
and  .52.  For  rT>ore  Information,  write  Jim 
Greer  KK2U,  444  Berkshire  Roai^.  ftidg«- 
wood  NJ  07450.  Of  phone  (201H45-2855, 
evenings  onEy. 


MM  HELP 


I  am  looking  for  ttie  service  manual  for 
the  Tennelec  Memoryscan  MS-2. 1  will  pay 
for  postage  and  copying  cost 

Rotwrt  tUTadoux  KBdJE 

1577  Poa«  noad 

Edwardsvllle  IL  62025 

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73  Magazine  •  June*  1S84    87 


W2HSD/I 

NEVER  SAY  DIE 

ec//tor/a/  t>y  Wayne  Green 


from  p&ge  6 

seem  to  quickly  get  lost  when 
emotional  factors  come  up. 
Let's  take  a  look  at  what  experi- 
ence has  taught  us  so  we  won't 
forget  it. 

1.  In  virtual iy  every  emergen- 
cy^  the  first  thing  that  goes 
out  Is  the  telephone.  Storms, 
rain,  fire^  explosions,  downed 
planes^either  the  wires  go 
down  or  the  switching  systems 
bog  down  and  radio  is  alt  that's 
left.  This  means  that  In  efnef- 
gencies  radio  is  suddenly  going 
to  have  to  be  abJe  to  handle  an 
enormous  amount  of  message 
traffic. 

2.  With  few  exceptionSt  the 
other  radio  services  are  inexpe^ 
rlenced  in  dealing  with  emergen* 
creSp  are  unequipped  to  provide 
the  equipment  and  technical 
people,  can^  interconnect  with 
other  services,  and  are  unable  to 
provide  short-,  medium-,  and 
long-range  communications.  The 
only  service  really  geared  to  pro^ 
viding  serious  emergency  com- 
munications is  amateur  radio, 
and  amateurs  should  plan  to  be 
able  to  intercommunicate  with 
other  services  so  as  to  help  the 
police  and  fire  departments,  for 
instance,  keep  in  touch. 

3.  In  every  emergency  situa- 
tion,  the  amount  of  message 
traffic  is  vastly  beyond  the  capa- 
bility of  the  few  available  trained 
operators  to  handle.  This  could 
be  solved  by  developing  equip- 
ment which  does  not  require 
trained  operators  to  us©  and  by 
making  the  communications  as 
high-speed  as  is  practlcaL 

4.  Equipment  and  skills  which 
are  not  in  everyday  use  are  just 
not  dependable  In  time  of  emer- 
gency, 

A  nuclear  attack  (which  is  the 
most  serious  emergency  now 
concej^ble)  is  what  is  called 
the  "worst  case."  Other  than 
hoping  that  some  ham  will  crawl 
out  of  his  cellar  with  an  intact 
HT  or  mobile  HF  rig  and  start 
from  scratch,  is  there  anything 
we  can  do?  That  scenario  isn't 
likely  to  dissyade  Russia  from 
taking  advantage  of  a  perceived 

73  Magazine  *  June.  1984 


communications  weakness  some 
day. 

Would  that  I  could  be  as  blas4 
about  American  security  as 
most  hams  (in  other  words,  just 
not  even  think  about  it)  and  get 
annoyed  If  the  subject  is 
brought  up. 

After  working  with  a  group  of 
dedicated  hams  for  several 
years  on  this  matter  of  ham 
emergency  communications,  c®'- 
tain  limiting  factors  have  be- 
come evident.  One  is  the  rela* 
tlvely  small  number  of  active 
hams  we  have,  particularly 
younger  ones  who  wilt  have  the 
stamina  it  will  take  to  survive  an 
attack  and  set  up  communica- 
tions. The  other  is  the  dependerv 
cy  on  communications  which 
are  t>oth  inherently  slow  and  de- 
pend heavily  on  difficuit-to-learn 
operator  skills. 

Amateur  radio  is  so  patheti* 

cally  far  behind  In  technology 
that  there  is  no  real  justification 
for  the  continuance  of  the  hobby 
from  that  viewpoint.  Indeed,  our 
leaders  have  aliowed  the  pres- 
sures from  old4imers  to  so  Influ- 
ence the  hobby  that  there  Is  lit* 
tie  honest  justificatEon  for  the 
hobby  on  any  basis.  One  of 
these  days  someone  is  going  to 
say  out  loud  that  the  emperor 
has  no  clothes  and  we  could 
lose  all  those  nice  private  fre- 
qoencies.  No  more  DX  pileups. 
No  more  traffic  nets  sending 
useless  messages  just  to  do 
something.  No  more  rag-chew- 
ing. No  more  repeater  clunking. 
No  more  repeater  wars.  No  more 
jamming  of  nets.  No  more  bands 
jammed  with  contesters.  No 
more  certificate-hunting.  No 
more  ham  club  meetings  with 
three-hour  arguments  on  what 
coior  to  paint  the  clubhouse. 
What  would  we  do?  What  would 
we  do? 

A  generation  or  two  ago  there 
were  some  strong  justifications 
for  amateur  radio.  Old-timers 
can  remember  when  the  rules 
and  regulations  were  accepted 
as  fundamental  truths.  There 
were  four  reasons  cited  In  the 
rules  for  the  existence  of  ama- 
teur radio  as  a  service  and  for 


the  setting  aside  of  millions  of 

dollars  of  spectrum  space. 

We  were  supposed  to  provide 
a  supply  of  trained  technicians 
and  operators  for  our  country  In 
time  of  war.  Indeed,  without  am- 
ateurs, WWII  would  have  been 
much  more  difficult.  But  those 
were  the  days  when  amateurs 
did  keep  up  with  technology.  In- 
deed, they  were  in  the  vanguard, 
inventing  and  pioneering  virtual- 
ly every  major  new  communica* 
tlons  technology. 

Today,  with  most  new  hams 
going  the  Bash  route,  it  Is  un- 
usual to  find  anyone  with  even  a 
vague  technical  background.  In 
the  meanwhtle,  the  technology 
has  rushed  years  ahead  of  the 
average  amateur.  Many  of  us 
were  working  years  ahead  of  the 
average  amateur.  Many  of  us 
were  working  with  digital  com- 
munications over  30  years  ago, 
yet  these  now-old  commercial 
techniques  are  still  not  even  on 
the  horizon  for  amateur  traffic 
nets— which  are  happily  brass- 
pounding  away  some  fifty  years 
behind  the  times.  How  many 
years  has  it  been  since  ama- 
teurs contributed  something  to 
communications  technology? 

Inventing  and  pioneering  are 
the  punriew  of  youngsters  and 
we  hams  have  grown  old  and 
cranky.  Few  of  us  have  been 
making  any  effort  to  get  kids  in- 
volved with  hamming.  A  dis- 
tressing number  of  the  ham 
clubs  I've  visited  in  recent  years 
seem  to  have  made  it  a  practice 
to  discourage  youngsters  from 
joining. 

Okay.  Perhaps  you  can  see 
that  If  there  Is  going  to  be  any  re- 
alistic emergency  communica- 
tions system  established,  we 
are  going  to  have  to  have  a 
whole  lot  more  hams  than  we  do 
today— and  they  are  going  to 
have  to  be  younger  and  livelier.  I 
can  just  hear  tlie  curmudgeons 
on  7S-meter  phone  huffing  and 
puffing  over  that. 

You  know,  I  get  on  20-meter 
l>fK>ne  as  often  as  I  can  spare 
the  time,  and  it  is  rare  that  I  run 
Into  someone  who  is  not  retired^ 

You're  still  wondering  how  all 
this  fits  in  with  my  FCC  petition, 
right?  Well,  that  has  a  lot  to  do 
with  the  enomnous  number  of 
comments  filed  in  response  to 
the  no-code  proposal — mostly 
by  ARRL-member  ham  clubs. 
The  gist  of  these  comments  was 
quite  consistent:  No  ham 
should  be  licensed  without 
Morse-code  skills  because 
these  are  needed  for  emergency 


operating.  The  old  theme  of 
'^when  all  else  faiISp  GW  will 
come  through"  was  said  so 
often  that  one  might  think  there 
was  some  truth  in  it. 

Okay,  Let's  say  that  whatever 
that  numt^er  of  hams  agree  on 
actually  Is  the  truth— by  defini- 
tion. So  if  we  accept  as  a  fact 
that  we  must  know  Morse  code 
for  use  In  emergency  times,  then 
it  is  inescapable  that  all  hams 
should  be  able  to  demonstrate 
their  competence  with  the  code. 
The  basis  for  not  permitting  the 
FCC  to  set  up  a  no^ode  license 
test  on  220  MHz  was  the  need 
for  CW  skills  for  emergencies. 
So,  If  the  hams  who  inundated 
the  FCC  with  these  statements 
were  not  lying,  the  logical  next 
step  was  to  see  that  CW  skills 
are  maintained,  Ttiat's  called 
putting  up  or  shutting  up. 

My  proposal  cited  the  no- 
code  responses,  i  read  through 
the  voluminous  report  from  the 
Commission  when  the  proposal 
was  terminated.  I  concluded 
that  the  only  toglcal  reaction  to 
this  massive  agreement  by  the 
ARRL  clubs  would  be  some 
measure  to  make  sure  that 
hams  would  not  allow  these  crit* 
ically-important  CW  skills  to  de- 
teriorate and  thus  not  be  avail- 
able  when  needed. 

Further,  since  the  depen- 
dence  upon  CW  for  emergency 
communications  would  pretty 
much  rule  out  the  development 
of  high-speed  automatic  digital 
communications  such  as  I  have 
been  trying  to  promote  for  the 
last  thirty  years  ^es,  I  know 
when  I'm  licked,  and  we  know 
that  the  volume  of  emergency 
traffic  is  Incredible),  amateurs 
would  be  doing  their  hot)by  and 
our  country  a  senous  disservice 
if  they  did  not  continue  to  devel- 
op their  CW  skills  to  some  prac- 
tical speed  level. 

During  WWII,  hundreds  of 
thousands  of  people  were 
taught  to  copy  CW  at  35 
wpm— FOX,  the  Navy  called 
it— also  the  speed  which  most 
of  the  commercial  CW  services 
used  to  use  before  they  were 
automated  about  40  years  ago. 
Obviously,  almost  anyone  can 
learn  to  copy  at  35  per,  so  why 
not  set  that  as  a  norm? 

Sure,  i  knew  that  the  same 
chaps  who  were  so  vehement 
about  newcomers  having  to 
learn  code  would  be  the  first  to 
scream  bloody  murder  if  anyone 
suggested  that  sauce  for  the 
goose  was  sauce  for  the  gander. 


I 


I 


The  Cfy  would  be  "grandfathefl", 
rigfit? 

Oh,  I  Knew  that  the  FCC  woutd 
turn  down  the  petition,  probably 
with  no  good  reason  given.  And  i 
was  correct.  But  I  did  want  to 
hoid  the  FCC's  hand  in  the  fire 
on  thts  one  l^ecause  they  got 
suckered  by  a  bunch  of  ctubs 
and  old-timers  into  preventing 
amateur  radio  from  being  able 
to  grow  with  the  times. 

On  numerous  occasions,  I 
have  written  that  I'm  not  at  all 
sure  that  it  isn't  too  late  to  save 
amateur  radio  now.  A  no-code  li- 
cense might  have  helped,  as  It 
did  In  Japan.  But  there  It  hit  big 
so  that  they  have  al^out  three 
times  as  many  Itcensed  ama- 
teurs as  we  have,  and  v^/ith  only 
half  our  population.  Odd,  isn't  it, 
that  Japan  is  graduating  seven 
times  as  many  electronic  engi- 
neers as  we  are?  I  wonder  where 
they  are  coming  from?  Does 
anyone  have  an  \iiea7 

Are  we  gofng  to  be  able  to  put 
together  anything  significant  in 
the  way  of  an  emergency  com* 
munlcatlons  system  which 
might  possibly  survive  a  nuclear 
attack?  5o  far,  I  see  not  even  a 


hint  of  hope  for  this.  We  need  a 
massive  infiux  of  youngsters. 
We  need  to  get  cracking  on 
developing  already-known  tech- 
nology so  we  can  have  high- 
speed error-correcting  commu- 
nications which  anyone  can 
operate.  We  need  a  million  new 
hams,  all  with  the  energy  and 
enthusiasm  to  make  all  this 
happen. 

I'm  still  trying  to  get  the  con- 
cept of  ham  clubs  back  into  our 
high  schools,  I'm  working  on  a 
high46ch  college.  My  ideas  are 
beginning  to  be  accepted,  so 
we'll  see  what  happens. 

NoWp  about  the  code.  If  you 
really,  honestly  t>elieve  that  it  is 
important,  then  you  must  agree 
with  me  that  it  is  every  bit  as  Im- 
portant to  make  sure  that  this 
key  skill  is  not  permitted  to  dete- 
riorate through  disuse.  This 
means  retesting. 

if  you  don't  agree  about  re- 
testing,  what  other  way  is  there 
to  look  at  it  except  that  code  is 
not  critical  to  getting  a  ham  li- 
cense? So»  are  you  for  code  for 
others,  but  not  you?  Code  for 
all?  Or  no<;ode  for  all?  Your 
deaL 


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Clement  S.  Simon  WA7RHN 
3356  SE  Emelia  Lfi. 
Port  Orchard  WA  98369 

Fred  L  Sieera  W87SZK 

POBS491 

San  Diego  CA  92106 

JotinC.  LovciwejFY 
1947  Steam  lee  Ave. 
Long  Beach  CA  90815 

Richard  &.  Leblanc 
193  Lake  way  Dr. 
Pmstieid  MA  01201 

Olen  A.  Jenkins 
19398  W.  Missouri 
Tucson  A2  85714 

Earl  a  Wolf  KSVDH 
67t3  Devon  wood  Or. 
Cincinnati  OH  45224 

Robert  A.  Graham  KA50EY 
5006  Justin  Dr.  NW 
Albuquerque  NM  B7114 

Mtnoft  Torr^$  KP4iNT 
POBost699C 
Candsanas  PR  00629 

Donald  H.  Holmes  W9MYB 
7Z20  Creek§lde  Ln, 
Indianapolis  in  46250 

D.  Joseph  Dickinson 
1260  Blfch 
B/oomfield  CO  80020 

Andrtw  G.  Rodau  WB3LCN 
17  Madtson  Ave,,  Apt.  11 
MadJaon  NJ  07940 


YES,  WE  HAVE  IT! 

TWO  5'  X  V2'  ROLLS 
FOR  $5.95  ppd.  OR: 
FOUR  12' xVs"  ROLLS 
FOR  $13.95  ppd. 

Send  payment  with  order 
OR,  call  for  faster  service 
(have  charge  card 
number  ready). 


BIRCH  HILL  SALES 
P.O.  Box  234, 

Peterborough.  NH  03458 

(603)  924-7959 
1—1 


73  Magazine  •  June,  1984    89 


WEIV  PRODUCTS 


COM-RAD*S  NEW 
**UNTENNA" 

Development  of «  new  lowi>rofafo.  verti- 
cally-polarized Uniehna^^  deflioned  to 
oulperform  oonvgntloiral  whip  antennas 
mofe  than  lar*  times  the  height  has  been 
announced  by  Com-RAd  lnduatris»  o4  Buf- 
falo Hi. 

Heifltit  redycilofii  of  80%  and  more  el- 
levFate  damafle  caused  by  garage  doofe, 
undergfoynd  ramps,  Ireee.  drivel n  or  aer- 
vice-staUon  cafio^tea.  and  oihw  cleal"- 
amt  hezardA,  the  company  states. 

Aecordirvg  to  Corn-Bad.  Utitefhoaa  will 
iwntfil  a  wide  rani^  of  mobile,  portable, 
and  fixed  radio  uaeta  Irvcluctlng  comnrton 
carriers,  er>d  pubKc-safety,  wlreles^'Secih 
ritv-system.  government,  milltaiY,  forest* 
ry,  mer|r%,  alrcraftp  ami  tagsi fiwaAnd uetry 
vehicles. 

Com-Rad  reports  that,  l>scause  of  Un* 
tafina'e  riigbd  construction,  mobile  flutter 
or  "picket  fencing"  Is  a^tmlnated,  result' 
rng  In  baae^fltation^uailty  transmiMlOTL 
Quieter  reception  with  tesA  adjacent- 
channel  tnterlersnce  (lntermo<^  Is  Cited, 
and  gained  through  Untenne'e  high  Q 
design.  Mede  of  stainless  steel,  alumi- 
ngm,  phosphor  bronze,  arid  chrome  plate, 
each  antenna  Is  noted  to  ba  tilghfy  rests^ 
tani  to  cofroslOTL  Unlike  whip  antennas, 
the  Untenna  may  be  encloaed  fn  an  op- 
tional weather  resistant,  high-Impact 
pJastic  cover  (i^dome),  which  Is  useful 
aJeo  in  dlagulsir^  ttie  antennas. 

Untenna  Is  current fy  avalLatile  In  flw 
models  lo  Ufve  Irecm^ncv  ranges  ot 
25-40;    45-35,    140^^70,    £10-240.    and 


43(M70  MHZL  Combination,  single^ieed- 
ilnt  models  lO  serve  rnultifraQuency  re- 
qulremenla  are  a^eo  available. 

GomplBte  information  Is  contained  in  a 
new,  illustrated  bLilletln  evelleble  fram 
Com-R^d  tndUBfri»$,  25  tmson  Str&eU 
Btiffafo  NY  142 W.  RMder  Service  number 
480. 


HAMTRONICS  GAASFET 
RECEIVER  PREAMP 

HamtnKilce.  inc.,  he«  just  announced  a 
rww  low-nol&a  preamp,  using  a  new  dual- 
gate  GaAsFET  recenily  designed  eape- 
dally  for  service  in  the  VHFaJHF  bands. 
Up  until  now,  to  get  the  low-r^olse  figure  of 
a  GaAsFET,  a  designer  had  to  adapt  a 
transistor  really  intended  for  mtcfowave 
service,  Tlrey  work  well,  but  they  cost 
more  and  the  devlcee  tend  to  oecHlate  be- 
cause they  have  so  much  gain  at  the  lower 
VHF  and  UHF  frequencies  Also,  being 
aingle-gete  devices,  ttvey  tefid  to  have  tf^e 
Cltaractefisticajly  high  feedt^ack  capaci- 
tance eseoclated  with  tf lodes ^  This  makee 
them  hard  to  tame  under  a  wide  variation 
In  toad  impedances. 

T\m  new  ING-^  )  seties  of  preempt 
solves  thesB  pfoblems,  proved  ^ng  good 
gain,  modsniely  low  noise  figure  (0  7  to 
QM  dB,  depending  on  band),  and  low  cost. 
The  LNG-{  )  aeries  p  ream  pa  coat  mucli 
less  than  ths  earlier  type  of  GeAsFET  pre- 
amps.  GaAsFETs  typteaJiy  give  a  wide 
dynamic  rajige  for  good  overload  <:harac- 
Isristtcs,  and  this  unit  \$no  exception.  Ad^ 
ditlonatly,  the  new  dual-gate  devices  used 


In  the  LNG  have  buiii^ln  diode  protecilon 
to  reduce  the  chance  of  damage  due  to 
slatic  and  traneients.  Units  operate  on 
standard  + 12  to  -i- 14  V  dc,  artd  they  are 
Msy  to  time.  The  case  aJiows  for  easy 
nriounllng  anywhere.  Including  the  tops  of 
towers,  LNG  preamps  are  available  for  all 
ham  bands.  10  meters  through  460  MHz. 

For  mere  Infomiatlon^  Including  a  free 
catalog  on  other  H  ami  rentes  products, 
contact  Hamfro/r/cSt  ''*c--  ©5  Mot/i  Road, 
mton  NY  r44G&953&;  (7t6>^2^^30.  (for 
overseas  msfifng,  phase  send  US$2.00  or 
4  iRC$J  Reader  Service  number  482. 


HAMWARE  PROGRAMS 
FOR  THE  V1C'20 

Tliree  new  HAMWARE  programs  by 
John  Vesty  Comf>any  are  said  (o  ejctend 
the  utility  of  V1G-20  computers  to  logging 
and  QSO  operations. 

HAM  LIST  serves  as  a  memory  jogger 
during  a  QSO.  quickly  searching  for  a  call 
and  displaying  data  on  liia  T?te  program 
provides  tor  the  convenient  addiliofu  revi- 
sion, or  deietlofi  of  entries,  and  a  screen- 
review  of  the  list, 

QUICK  LOG  provides  automatic  log- 
ging of  date  and  time,  and  search  by  ca)l 
or  QTH.  Jhe  list  can  b6  pflnted,  saved  to 
tape.  Of  scfeerKevtewed  as  desired.  Time 
is  displayed  on  the  menu  page. 

QSO  MANAGER  combines  a  terMnlnute 
fdentiflcatlon  timer  and  a  24'liour  clock, 
witfi  a  screen-based  notepad  for  use  dur- 
ing a  phofte  Of  ON  QSO,  The  notepad  in- 
corporatea  a  wdrd-wrap  rout  me  to  ellm^ 
nate  broken  words  at  tt>e  end  of  a  line.  The 
timer  can  be  set,  reset,  or  can  pel  led  at  any 
time. 

The  three  programs  are  avallebTe  on 
tapea,  vtd  ere  deefgned  for  use  with  botti 
unexpended  arvd  exparMJod  VtC-20 
oornputers.  Capacity  of  the  logging  prc^ 
grama  ranges  from  100  to  700  entries  max- 


imum, dependlnn  on  the  memory  expan* 
ston  used  and  the  length  of  Individual  en- 
tries. 

For  further  Infomtatlon,  Contact  John 
Vesfy  Ccmpatty,  41S  E!m  Stm^i  Fsy^tte- 
viila  WV  J  3066^  Reader  Sen/lce  number 
483. 


LARSEN  INTRODUCES 
CELLULAR  ANTENNAS 

Larsen  Electronics  has  introduced  a 
new  line  of  cellular  antennas  with  a  wide 
ctKJice  ol  cosmetic  arvd  rnounling  options. 
Ttie  Larsen  CM  series  ia  av^JtetJe  in  gain 
Bnd  quarter-wave  modeia. 

The  new  CM-825  5m  over  1/4  wave  fea* 
turaa  an  opan^otl  design  that  delivers 
Z-4B  gain  and  a  9&MH2  bandwidth.  The 
t^8e  is  chrome  plated,  whl^e  ttte  wtilp  t\a3 
the  exclusive  Kulrod  plating.  Ttte  8GM- 
B2S  offer$  the  same  elect rtcal  configure^ 
tion  with  a  Teflon^^ -coated  baee  and  rod. 
Both  are  shipped  with  black  and  white 
piaatic  bases  to  give  customers  a  cosmet- 
ic Choice. 

Larsen  also  offers  CM-aeriea  quarter- 
wave  antennas  with  chroma  tCMQ)  and 
black  Teflon  {BCMQJ  finishes.  The  quar- 
ter-wave models  provide  a  90-MHz  band' 
width  aiKf  deliver  unity  Qsin  with  a  com^ 
pact  3"  whip. 

Larsen' 3  new  cellutaf  system  offers  a 
ct^oice  of  weatherproof  mounting  optiions. 
The  CM-K/CM-B  permanent  mount  re- 
quires  a  3/4"  hole  Of  the  antenna  may  be 
mounted  temi>orarily  with  a  mag  mount  or 
irunk4ld  mount.  A^J  me  avaliabte  with  RG- 
68AJ  ©r  Teflon  TFE  low-loss  coax  and  TMC 
connector.  The  CM  permanent  mount  also 
ie  available  with  iow^oss  AA-3006  coax 
end  TMC  connector  mount.  Other  cor^nec- 
tor  types  are  available. 

For  riKKe  information,  contact  Larsefi 
Electronics.  PQ  Box  t799,  Vancouver  WA 
98668:  (206}-573'2722.  Reader  Service 
number  4S5. 


/    B 


I 


Com-fltarf  tndu$ifiBM*  Uniennae.  A,  Modet  CB4A.  450^460  MHi;  B.  Mod&i  CR2A,  f40-f7e  MHz;  C.  Optionai  fladome  Mpdei  Cf^RD  (fits 
Untenna  Mod^a  CR2A  CS3A^  CR2MA^  D.  Mod9f  CR2MA  duaf-tuacUon,  munttreqmncf  Untenna,  140- 1 70  MHz,  ptu$  440-^460  MHz;  £ 
CRr09A  fmftcaK  29-35  MHz. 


J 


•  * 


1 


Cvilutar    aniBnna$    from    Lafsen    Eiec- 
tronie$. 


90     73  MagazinB  •  June,  1984 


I 


CONTACT  EAST 
FREE  1984  CATALOG 

Contact  East  J3  offering  a  free  19&4 
Elflcironic  Tool  and  Te«t  rnslrumfint  Cata- 
log featuring  over  S,000  qualiry  l^hnlcal 
products  for  assembling,  testing,  and  re- 
pairing al&clfonic  oqulpmen!,  Tfiia  is  an 
«Ht»llefit  buying  guide  for  engineers, 
tectvnicinns.  amj  feaearchors. 

Products  Indude  precision  tiand  toois^ 
test  Instruments,  tool  kfts,  and  soldering 
supplies,  plus  a  new,  full  selection  of  slat 
lc<»ntro<  products.  All  products  are  tuUf 
lilustratad  wilfi  pHotographs,  cfetallod 
descriptions,  and  pf Icing  to  allow  for  easy 
Ofiiering  by  pfione  cm-  mail.  Moat  ortJers  »m 
sliipped  wftWn  24  hours  and  cany  a  100% 
satisfaction  guarantee. 

The  Contact  East  1964  Calatog  Is  avail- 
alKe  from  Cootaet  East,  7  Cypress  Dfiw. 
PO  Bo)t  160.  Burfinglon  MA  01BO3;  ^fTj- 
272^057.  Reader  Sen^ice  number  478. 

a  E  CORPORATION'S 
PROTOTYPING  BOARD 

The  "eZ  Bo^fd"  is  a  aofd^rleas  exporl- 
fnwtter  system  wtiicli  prov^dn  a  tlme^sav- 
Ing  i:nd  convenient  method  tof  f^uilding 
experimental  add-ons  to  Interface  with 
personal  compulera. 

f^muma  include  a  titgh-quallty  glass 
epoxy  primecf  circuit  t>oafd  mounted  with 
a  set  of  solderiess  breadboard  I ng  units 
for  buitding  circuits.  Four  separate  dJSlrf- 
butlon  buses  with  50  tie  points  each  can 
be  used  tor  power,  ground,  clock  IJnes^ 
reset  commands,  and  more.  A  four-post- 
ikm  Dtp  swHch  Is  mounted  on  tt>«  tjoard. 
Each  switch  position  connects  to  a  se^t  of 
tie-polni-bfoch  sockets  on  either  g(de,  to 
atd  In  the  d^elopment  and  analysis  Of  ex- 
perlmeniai  circuits,  A  fiaj  ritibon  cable 
t^hnecta  the  tward  to  the  computer's  bus- 
expansion  slot. 

The  tjfeadboarding   area  consists  oi 
t460  tie  points  with  a  capacity  of  sixteen 
14-pin  OIPs.  Components  with  lead  diame- 
ters of  up  to  .0^2  simply  plug  in  and  are 
connected  with  ordinary  solid  hookup  wire. 
The  board  will  be  very  useful  m  R  &  D  for 
engineers,  hobby  I  sis,  and  students  who 
wish  to  build  their  own  Interfaces  to  com- 
put«r$    It  aids  in  understanding  the  op^ 
era  t  Ion  of  a  comptttef's  bus  system  and 
provides  the  function  of  each  output  ler- 
minel  of  tt\e  bus  fof  use  In  developing  add- 
on circuits  fof  Iriterfacing  to  a  comput«f. 

Models  IPC,  APC.  end  CPC  are  avaH- 
able  for  IBM-PC,  Apple,  and  Commodore 
and  alt  other  hardware^compatible  com- 
puters of  ttm  same  type.  Models  for  other 
computers  will  be  iniroduced  during  1064, 
international  patents  are  pending. 


Fme  Contact  East  csialog. 

For  furtlief  Infonnaifon,  contact   Mr. 

Rahim  Sabadia  dt  S.  E.  Corporation,  PO 

So*     1132,     YorbB     Und&     CA     92686: 

(714^^30^9335.    Reader   Seivtce    number 

47S, 


AMATEUR  RADIO  GETS 
ITS  VERY  OWN  GAMEJ 

The  Dayton  Hamventlon  I9fl4  saw  re- 
lease of  Amateur  Radio's  first  offidaJ 
0ime  pfoduc*.  called  Hamfeai!"  t984.  it 
is  produced  and  distributed  by  QCD  Mar- 
keting Services,  a  division  of  OCD  Publi- 
cations, tnc.,  whtch  publishes  the  ATV 
journal,  A5  ATV  M^gazfftB. 

Hainfest!  has  its  own  game,  colorful 
{^fne  board,  dice,  money,  and  drawing 
cards,  players  move  around  the  game 
boafd  buyfng  as  much  ham-radic-type 
equipment  as  they  can  atford  while  trying 
10  advarxie  tfiemse^ves  from  Novice-  to  Ex- 
tra<;lass  FCC  license.  Along  the  way, 
there  are  helping  QSL  cards  and  penalty 
QRM  cards.  Two  squares  are  designated 
FCC  test  areas  from  which  each  pCayer 
draws  special  FCC  cards  to  determine 
whether  or  not  he  studied  hard  enough  to 
pass  to  the  neitt  grade  license.  An  addi' 
tional  two  squares  designate  Hamfest  lo- 
cations from  which  aH  players  t>egin  a 
trada/buy/seli  limited  time  period.  There  is 
a  bank  ami  retail  store  with  the  first  player 
reaching  the  Extra^Jass  status  declaiod 
Super  Ham  and  Ihie  winnorl 

Ham  fast}  is  available  at  most  ham- 
radio  retail  dealers  or  Is  available  direct 
from  OCD  Marltstirtg  Services,  PO  Bqx  H, 
Lo¥fd6n  iA  52255;  (3JBJ-944-5421.  Reader 
Service  numtier  434. 


Th0  KU4  Eiectmntcs,  fnc,  B^teme  Af/irAX  dfsh. 


KLM*S  SATELLrTE 
MJNf  X  DfSH 

KLM  Electronics,  rnc.  has  announced 
the  introduction  of  its  new  MInl-X  satellite 
TV  antenna,  a  parabolic  dish  with  an  &- 
foot  diameter  to  meet  the  needs  of  home 
Of  commercial  uaefs  with  limited  space. 

The  Mtnl-X  is  the  third  entry  in  KLM's 
line  of  modular,  radar-mesh,  pa^atiolic 
dishes.  Its  modular  design  permits  fast 
shipment  and  easy  assembly  even  by  am- 
ateurs using  simple  tools.  The  smaller, 
lighter,  MInkX  can  be  assembled  by  two 
people  in  1  Vi  hours  or  fess  or  by  1  pOfson 
In  at>out  2  hours, 

Tt*a  MInl-X  empioys  the  san^e  basic 
modular  design  as  KLM's  X-11  ar*d  X-T6 
antennas,  with  the  same  survivat  capabili- 
ties against  the  elements,  including  the 
ability  lo  withstand  tOO-mph  wifMls.  it  has 
16  ribs  compared  to  24  for  tbe  11-foo!  X-11. 
The  MfnI-X  operates  at  55%  efficiency, 
like  the  X-t  l.  Its  V6  ratio  Is  .34  compared 
with  A7  for  its  larftfif  cousin.  It  Is  available 
with  a  tow'cost,  manual -type  mount  or 
with  a  KLM  polar  mount  and  tangential 
drive  compatible  with  KLM  motor  drives. 
The  Mini-X  can  be  ordered  id  dark  green, 
black,  or  brown, 

For  further  Information,  contact  KLM 
Etecnoffim,  inc..  leeaO  Church  Stteat, 
Morgsn  Htli  CA  95037,'  {27 2^986-^6668. 
Reader  Service  rtymber  479. 

ELECTRONfC  SPECIALISTS' 
HAM  GEAR  PROTECTION 

Protection  and  Interference  control 
products  are  presented  In  a  new  40-page 


me 


HI-TECH  EQUIPMENT 
PROTECTION  & 
INTERFERENCE 
COKTRdL 
CAT/itOG 


catalog  from  Electronic  Specialists,  Cost- 
fy  damage  from  lightning  or  power-line 
spikes  can  be  prevented^  and  disruptions 
or  Interference  from  power-line-carried 
EM1  and  RFl  can  be  controlled,  Protec- 
five  devices  for  ham  geai'  Include  ac  ilrte- 
voilage  regulators  and  conditioners, 
modem  and  phone-llne  surge  suppressors 
as  well  as  equipment  isolators  and  fii- 
ler^suppr  essof  s . 

Typical  protect  Ion  and  interference 
problems  are  described,  together  with 
suggested  solutions  for  various  ham  and 
cofTTmunlcatlon  rnst alia t ions.  Catalog  341 
also  describes  numerous  applications  for 
hi  tech  equipment  protection  and  Interfef- 
ence  control. 

For  further  Information  or  to  obtain, 
write  Efecironic  Sp^iafists,  fnc.,  f7f 
South  Main  St.  PO  Box  339.  Natick  MA 
01780;  000^225^376,  Reader  Seniles 
number  431^ 


THE  MCM  ELECTRONICS 
DMM/OCM  METER 

MCM  Electronics,  a  parts  arxl  acces* 
sories  distributor  to  the  electronic  service 
industry,  has  introduced  ttw  Tenma  com- 
bi nation  DMM/DCM  meter  with  hFe  tran* 
sislof-gain  tester.  Users  can  easily  mad 
voltage,  current,  resistance,  capacitance, 
and  hFe  on  (be  clear  Vk-lnch,  SVi^iigit 
LCD  display,  tt  saves  lime  and  money  by 
eHminatIng  the  use  of  both  a  conventional 
capacitarKe  and  a  multimeter. 

Ught weight  and  compact  tor  use  In  the 


Vta  aZ  ptototyptng  board 


Efectmrtic  Spsciafisw  catalog  of  ham 
ffear  profectlve  dowfcss^ 


Th&  MCM  EleotrortlGs  DMM/DCM  merer. 

73MagazmB  *  June,  1984    91 


flalil  or  cm  th«  btficii,  tri«  metac^s  Itvllne 
push-by  (tons  allow  for  easy  ono-hand  op^ 
erallon, 

ThQ     ^ap^cltance-maaskirinQ      socket 
gives  d tract  iT>easi^rs{n«ntB  of  capacltOfSr 


■long  **th  A  transistor  tiFe,  The  color- 
oodad  pan^l  aUows  u&ers  aasy  Identifica- 
tion of  function  and  ranga  sattlnps. 

Safety  faatures  include  input  overioad 
protection,  sifigle  fuaing  {w(th  apare  fuse 


IftSfdef,  and  stftss  r^ief  lest  laads.  Th« 
Tenma  cCfnbJ nation  DMM/DCM  metef 
comeo  In  a  convenient  carrying  case,  *ith 
alllgator-c!ip  hFe  leads,  and  has  b  one- 
year  warranty.  Battery<}perated,  tha  LCD 


display  IfKHcatsa  low  battery  uMMJUfcuw 
To  961  further  information  or  to  order,  with 
24'hour  delivery,  call  tolMree  fSO0> 
543-4330  //n  Ohio,  (S00)'762^3l3^  Reader 
Ssfvlce  numtaer  477* 


REVm 


TRIO-KENWOOD  TW-4000A 

Trio-Kan  wood  unveiled  the  TW'400QA  at 
ttm  19i3  Oayto^  Ham  vent  lon»  and  that  Is 
where  I  iiot  nity  first  lOoK  at  one.  The  mode^ 
oo  dis|Hay  h^d  the  opiional  VS-1  voice 
syfithesizer  installed,  and  after  a  few 
minules  playing  time,  I  decided  that  I  had 
1o  have  one.  In  fact,  I  didn't  gel  around  to 
purchasing  one  until  that  fall.  The  locai 
ham-radio  a  tore,  R  &  L  Electronic  a,  lat  me 
play  with  a  powerecl-up  unit  a/id  de^rvorv 
atrated  feature  mrvd  I  tie  various  of}tions 
thai  tKoy  stocke<L  Tm  sotry,  ixjt  you  last 
eant  get  tHat  kind  of  servlca  through  an 
BOO-fiymt>er  purchase.  I  ended  up  going 
home  with  the  TW^OOQA.  tha  VS-I,  and 
ma  MA4QO0  duai^and  mobile  antenna. 

The  ''PM  Duai-bandOf,"  as  Kenwood 
likes  to  call  it.  is  just  that.  Capabte  ot 
transcelving  on  either  2  meters  or  44d 
MHz^  It  outputs  a  respectable  25  Watts  on 
t>QXh  bands,  it  is  one  of  tha  very  few  rigs  on 
the  market  capable  of  more  than  10  Watts 
output  on  440^  My  own  unit  actually  mea- 
sured about  30  watts  on  both  bands  with 
a  Bird^   wattmeter. 

A  long  list  of  other  fnaln  reatures  Irv 
eludes:  a  iafge,  easy-tcKMK]  llquid^:rysial 
display,  an  Included  MG-48  touohtone^^ 
microphone,  battery  backup  (nice  when 
you  take  that  rig  I  mo  the  house  at  night), 
pf lofity  watch  which  switches  ihe  receiver 
b«ck  to  chanr>el  qoa  for  one  secofid  out  of 
ten  to  watcli  for  ealls,  and  dual  vfo's. 

The  TW-4D00A  has  three  main  options 
available.  These  Include  the  VS-1  voice 
ayntheslzer,  tha  TU^C  Contlnuous-Tona 
Coded  $quefch  System  {CTCS3)  tone  en- 
^ixJer,  vKl  the  MA-iOOO  duai-bar>d  moCNie 
antenna.  The  VS-t  voice-aynthaai^er 
boa/d  came  In  a  palntirfly  smail  boot  but  in- 
eluded  a  complete  set  of  instructions  for 
InstallatlOFi  and  jse  (In  two  languagea). 
Engrtah  and  Japanese,  as  If  you  hadn't 
guessed,  instatiatlon  went  smoothly,  aa 
per  Instructional  tod  left  me  with  an  ex- 
oats  board  containing  tne  pcevlous 
beeper  circuitry.  I  Kepi  mine,.  J  don't 
know  why,  The  V&-1  speaks  In  Iwo  larv 
guages  (go  ahead,  try  to  ouesa)  at  three 
speeds.  The  English  voice  haa  an  accent 
of  distinctly  Japanese  female  extractiohj 
but  It  is  easily  understood.  The  flip  of  i 
awittdi  gbtm  you  fhe  same  vocabulary  in 
ilspftneM,  to  the  great  delight  of  gueiiB 
and  children.  Watch  out  for  those  kida, 
though;  tt  lakes  them  only  a  short  while  to 
pick  (t  up  and  they  11  be  driving  you  nuts  In 
Japanese  A  switch  is  located  on  tt*e  twt- 
tom  of  the  rig  that  allows  you  to  turn  off 
the  voice  syntt^esiier  wtien  desired  Thta 
is  an  Important  feature  wt^en  or\  long  trips 
and  the  XYL  Is  trying  to  sleep  or  when 
she's  driving  and  you  want  to  wander  the 
band  without  distracting  her. 

The  MA4O0O  dual  t>and  antenna  is  an 
Interesting  affair.  On  2  meters  it  is  a  cen- 
ler-trapped  5/B  wave.  On  440  Mhtz,  h<MW- 
«MF,  the  trap  phases  two  Vi  wavea  In  cot- 
Unsar  fomn.  YBOh.  t  know.  You've  gotta  s«e 
H.  The  i>as6  of  the  antenna  contains  the 
equivalent  ot  a  P  1^259.  This  unique  fea- 
ture ratsas  all  kinds  of  Interesting  mount - 

§2     73  MagEimn  •  June,  1984 


ing  possibilities. .  .and  problems.  A  mag- 
netic mount  Is  available  and  It  Is  quite 
strong.  Personally,  I  am  a  fervent  t>eliever 
In  pafmaneni-mount  antennas  but  could 
find  no  mount  of  that  confituration.  So,  I 
Improvised.  Tt^ose  who  cringe  at  the 
thought  of  df  ill  ing  ho^es  in  an  automobile 
body  Should  shieid  their  eyes,  I  found  a 
a  lightly-longer  than- jauaE  SO  239  Socket, 
drilled  a  hole  In  the  center  of  the  roof  to  fit. 
and  tightened  a  nut  down  on  an  "O"  ring 
purchased  from  a  local  hardware  store. 
This  arrangement  has  served  me  faithfully 
with  no  leaks  for  six  months.  Tha  TIMC 
programmable  tone  encoder  is  also  ac- 
csssible  from  the  bottom  of  the  radio  and 
alicvva  the  setting  of  one  tone  each  for 
both  VHF  and  UFH  The  TIMC  will  gener- 
ate any  of  ttie  37  atandard  ^uttaudible 
tones  try  setting  a  DIF  switch  according  to 
the  chart  Included  In  tha  owner's  manual. 

Htm  a  word  about  whistles  and  bells. 
You  know;  those  little  features  that  make 
or  break  the  long-term  ownership  of  tha 
fig.  The  dimmer  switch  dims  the  display 
for  night  driving  (you'd  be  amazed  at  how 
bright  11  is  otherwise!)^  The  "soa/t"  feature 
la  at  ways  nice  wtien  you're  tiored  or  on  tt>a 
open  road.  "Skip"  allows  the  memory 
scan  to  bypass  unwanted  channels, 
"Reverse"  lets  one  check  the  Input  of  a  re- 
peater to  assess  simplex  poasibilltles, 
Ttie  microphone-monitoring  feature  pro- 
vides a  visual  indication  on  the  \\q\ji^ 
crystal  dlsptay  as  to  whether  or  not  your 
mike  or  touchtones  are  working.  The 
owner's  manual  is  extensive  and  quite 
complete. 

Then  comes  my  pet  peeve  with  many 
figs— the  included  schematic.  The  sct^e< 
matic  diagram  thai  comas  wittt  some  rigs 
is  either  so  email  ihat  you  need  a  photo 
eniarger  to  read  it  or  is  spread  among  sev- 
eral pages  of  a  booklei^  preventing  easy 
interpretation.  The  peraon  that  drew  the 
schematic  for  the  TW«4000A  should  get  a 
pat  on  tt^  b«ck  and  a  raise.  Drawn  on  both 
Sides  of  a  nice  big  10''  k  23"  sheet  of 
paper,  it  is  well  marked  and  easy  to  read. 
The  interconnect  ?ines  are  spaced  60 
thousandths  of  an  Inch.  This  Is  a  con- 
siderable Improvement  over  the  more 
comrrKtn  20-thousandths  spaclngp  espe- 
cially when  ten  or  30  of  these  tinea  run  par- 
aftel  for  any  distance.  The  PLL  unit  and 
MO-48  microphone  are  drawn  on  the  back 
In  filca  open  lin^.  Regrettably,  as  with 
many  other  Kenwood  radios,  no  schema t* 
ic  diagram  of  the  microprocessor  unit  Is 
provided,  ^or  those  that  never  work  on 
their  own  radios,  this  is  of  iittle  cor^se- 
quer^ce.  Each  of  these  features  by  iiseif  la 
not  enough  to  recommend  a  radio.  iHjt  a.\* 
together  tt>ey  are  a  f ormfdatkie  piackage 

The  Kenwood  TW-^DOOA  Is  far  and  away 
the  beat  mobile  rig  I've  ever  owned  and, 
for  the  person  interested  In  FM  only,  it 
makes  a  very  respectable  home  station  as 
well. 

For  more  Information,  contact  TrkyKeth 
wood  CommuntcMlions.  fllf  W.  Walnut. 
Compton  CA  9ttZ2C 

Robert  W.  French  II  NSEHA 
Lawlsburg  OH 


THOMPSON  SOFTWARE 
MORSE  CODE  TRANSLATOR 

Outstanding.  That  is  my  overall  asaeas- 
men!  of  the  new  program  offared  t^ 
Thompson  Software.  The  Mor*e€ode 
Translator  decodes  CW  aiKl  scrolls  ttre 
output  from  right  to  leU  on  a  single  line 
across  the  monitor  screen,  input  is  direct 
from  the  receiver  headphone  Jack  to  the 
TImax  1000  computer  earphone  connec- 
tor. No  terminal  unit,  hardware  modiflca- 
llona,  or  special  attachments  are  needed. 
What's  more,  the  program  also  generates 
CW  arid  sends  ll  via  the  mierophona  c<^n- 
nectcK ,  The  best  part  (aside  from  tha  price} 
is  that  the  program  fits  into  the  2K  memo- 
ry of  the  unoKpended  Time?c  lOOO.  I  have 
not  tried  the  program  In  the  Sinclair  ZX^I 
or  the  Timex  1500:  however^  due  to  their 
almltarity  to  itw  model  1000, 1  suspect  that 
there  would  be  no  compatibility  problems. 

The  translator  decodes  letters,  num- 
t»ers,  and  1S  other  characters  (such  as  AR, 
comma,  period,  etc.).  To  use  the  program^ 
load  the  cassette  In  the  normai  fashion^ 
the  program  la  setf  starting.  A  brief 
copyright  notice  appears  on  the  screen 
and  ttvsn  the  receive  mode,  shown  In  Rg. 
1,  appears.  By  enlerii^  a  period,  the 
screen  switches  to  the  format  In  Fig,  2,  the 
code-speed  input.  Once  selected  (the 
range  Is  d  to  100  wpm},  the  screen  switch- 
es to  Fig.  3,  which  gives  the  opiion  of 
sending  or  receiving. 

I  have  confined  mysetf  to  CW  reception; 
sending  requires  an  audio  amplifier  con^ 
nected  to  the  computer  microphone  port. 
Reception  has  bean  a  very  pleasant  sur- 
prise^ The  computer  does  an  excellent  job 
of  scrolling  the  translated  CW  on  a  slngie 
iinot  a  total  of  32  characters  wide. 

1  ristened  on  is,  20,  40,  arid  SO  meters 
and  found  the  reception  very  good  even  In 
noisy  situations.  My  receiver  was  a  terv 
Tec  Argonaut  with  a  Murch  dipole.  I  than 
switched  to  my  Sony  IGF  2001  to  poke 
around  the  SW  bands,  looking  for  com- 
mercial and  government  CW  stations-  1 
fouiKf  savaral  and  had  no  trouble  with  ft>e 
transiatlng.  Computer-generated  noise 
was  t>arely  noticeable  on  the  Ten-Tec  l»ut 
was  somewhat  obtrusive  on  tha  Sony. 


Reception  was  aNvays  very  good  when 
proper  CW  spacing  was  found.  Sloppy 
fists  resulted  In  the  scrolling  of  various 
"E"  and  T"  characters.  The  old  adage, 
"garbage-inp  garbage^out,"  is  v^7  clearly 
demo»*st rated  in  the  Thompson  Transia* 
tor.  See  Rg,  4  for  a  sample  of  tfie  output 
when  in  the  receive  mode. 

The  program  has  boen  copyrighted  and 
cannot  be  discussed  in  any  detail,  How* 
aver,  It  is  similar  to  many  other  TFmex  lOOO 
CW  programs  previously  published  in 
both  QIJC  and  QEX  newsletters.  The  first 
line  is  a  REM  statement  ttiai  contains  the 

machir^e  language,  Typically.  ML  is  load- 
ed Ijy  means  of  a  short  routine  that  Is  sub- 
sequently deleted  before  using  the  pro- 
gram: 

FORl=  16000  TO  17000 
INPUT  N 

NEXTl 

The  balance  of  the  program  is  devoted 
to  tha  formatting  of  the  screen,  selectfng 
the  QW  speed  variable,  and  various  timing 
and  USR  commands.  This  is  an  elegant  lit^ 
tie  program  that  does  a  great  |ob  wrth  lltlie 
rrwrftoryi 

Why  use  the  TimsK  1000  computer  for 
CW  reception  whan  there  are  so  many 
alternatives?  My  reason  Is  tha  low  cost  of 
the  unit  Available  opt ior^  lr>ciude  a  dedl- 
cated  microprocessor  like  the  HAL  RTTY 
unit  or  a  code  reader  like  the  Microcraft 
GODE'STAR  or  an  MF J  terminal  unit  for  a 
home  computer.  All  of  these  cost  far  more 
than  my  calculmtor-aized  Timex.  OrlBlnally 
priced  at  1^50,  this  computer  can  now  be 
purchased  for  as  Utiie  as  $9.B5  on  special 
sal^.  With  something  like  750.000  unlis 
In  circulation,  it  shkouid  be  no  problem  lo 
acquire  one  secorkdhand.  t  bought  mine 
for  $15.00  at  a  flea  market. 

There  are  a  a  vera  I  options  lor  CW  recap* 
tion  with  ths  Timex  1000.  The  cream  of  the 
crop  Is  the  ^'CWSS"  split-screen  CW 
trariscesver  packa^  thai  includes  a  pro^ 
gram  and  tvardware  from  NU4V.  Priced  at 
$90,  this  unit  is  reported  to  t>e  an  excel  lent 
performer,  tt  comes  \n  a  kit  that  must  ba 
assemt^led  and  plugged  Into  tha  rear  of 


PRESS    .    TO  GENERATE 

ffg,  I. 

ENTER  SPEED    IN  WPH  05   TO   ig0> 


Flg.Z 


bPEED   =   £0  lilpN 


tl  II 


TO  RECEIUE 


fig.  $, 


KfllCMC  DE   K4KUP 


PRESS    ,    TO  GEHERhTE 


Fig.  4. 


I  he  computer  A  simpler  method  requires 
a  knowledge  of  transisloMo-transistor  Log- 
ic  end  ihe  assembly  ot  a  terminal  unit. 
This  car^  be  conrvected  lo  p4n  20  of  IC1  of 
the  TlmeK  computer,  and  with  tt>e  right 
software,  H  will  do  a  Qood  )c>&  ot  ne^^elving 
CW.  I  zapped  an  IC  with  some  lll-advlaed 
modlflcaUons  of  this  sort.  Static  electrici- 
ty does  not  mlJt  with  IGa  very  well.  The 
tlUMTipsofi  Translator  |t£PJ9S^  Is  Et>e  clveep^ 
est  solution  that  I  have  er»countered-  Input 
via  tire  microphone  port  is  directed  to  pin 
20  of  101  without  requirement  of  major 
si/rgerv  on  the  computer. 

AlMn  all,  1  give  very  high  marks  to  ttie 
TI«inf»on  Software  CW  Translator  and 
fecomfnend  II  without  leservation.  l  hope 
that  the  Thompson  staff  is  hard  a!  work  &r\ 
a  RTTy  program.  Both  programs  would  be 
welcome  additions  to  Timex  software  li- 
braries. For  further  Information^  contact 
Thompson  Software,  PO  Box  f2G6,  lorn- 
banfiL  60t48.  Reader  Service  fiufTrber  4a8. 

TY>oniaft  Hart  A  DIB 
W*«twood  MA 


REGENCY  Zm  SCANNED 

The  Regency  Model  Z30  is  a  full-feature 
scanner  that  should  appeal  to  those  r^ 
quiring  maximum  operator  flexibility.  Cov- 
ering l  ho  thre«  FM  bwids,  the  Z30  features 
30  prooramm^ble  chanriels  and  a  host  of 
feaiures  provided  by  microprocessor  con- 
trol A  cluck  and  alarm  clOfik  are  included. 
Although  designed  for  home  use,  the 
monilor  can  operate  in  a  mobile  environ- 
ment  using  a  provtoeid  12'V  power  connec- 
tor. A  telescoping  antenna  Is  included 
with  the  unit,  and  although  fine  for  rKirmal 
use,  a  connector  i$  provided  for  an  exter- 
nal antt^nna. 

Aa  soon  as  I  unpacked  the  Z30. 1  was  im- 
pressed by  trie  layout  of  ttie  controls.  Uiv 
like  soine  devices  wtth  keys  so  small  a 


pencil  tip  \^  required  equlpmetit,  the 
Regency  features  a  full-si^e,  24-key  touch- 
pa<J  and  power^  volume^  and  sciuelch  con- 
trols. Setting  freQuencles  Is  i  srw|>.  f>fo- 
gramming  tt>e  frequwicy  ol  a  local  repeater 
was  accomplished  by  first  depressing  the 
MAKUAL  button.  A  loud  "beop'*  announces 
contact  cloaura  in  no  uncertain  terms.  The 
display  {of  the  bright -green  vacuun> 
liuofescent  typel  in<ticales  the  channel 
number  Mng  programmed — In  trtf  case 
"CH  01".  Tl*e  desired  frequer»cy  is  then 
entered  digit  by  digit  on  the  keypad.  Any 
programming  mistake  Is  easily  fixed  by 
using  the  CLEAR  button  a/id  reentering 
the  numbers.  I  n^anaged  lo  correctly  enter 
147.375,  Depressing  ENTER  assoctates 
the  channel  and  frequency.  No  band- 
switching  Is  required,  as  any  fr^uency 
within  the  threa  bands  can  be  associated 
with  any  channe^^  All  30  cJrannels  are  pro- 
grammed in  similar  faslitofi.  A  DISFlAY 
button  allows  ttie  user  to  immediately 
identify  any  ol  the  30  possible  channel- 
frequency  relation  ships.  Any  errors  or  In- 
correct control  sequences  are  Indicated 
by  English-like  ejror  n>essages  created  by 
the  mjcroprocassor. 

T?ie  Z30  supports  all  popular  scanner 
tunctlonS'  Hidden  frequencies  within  a 
band  are  isolated  easily  using  the 
SEAI^CH  furKtIon.  The  upper-  and  lower- 
frequency  raopes  of  the  search  are 
entered  using  multipurpose  keys  After 
depressing  SCAN,  any  reception  within 
the  bounds  locks  the  receiver  and  the  fre- 


quency la  displayed.  Two  optiona  may 
then  be  employed.  If  you  are  like  me^  It 
lakes  a  tew  n^oments  to  write  down  a  new 
frequency.  A  DELAY  function  caus^  the 
Z30  to  ho4d  for  four  seconds  after  carrier 
disappears  before  scannir^  is  resumed.  If 
you  like  what  you  hear  on  a  new  channel, 
depressing  HOLD  keeps  you  there.  Search- 
ing is  tefminated  at  any  lime  by  using  any 
otiiv  f  uncUon  kay. 

A  favodte  channel  may  be  cbecked 
every  two  secorvds  for  acllvity  by  program 
ming  It  Into  CH  01  and  activating  the  PRI- 
ORITY function  with  a  single  keystfoke.  A 
simple  scan  of  preprogrammed  channels 
Is  Initiated  by  depressrng  SCAN.  A  DELAY 
Option  holds  sach  reception  for  two 
seconds  after  transmission  to  allow  re- 
Bporvses  to  be  heard-  A  single  channel  is 
continuously  monitored  l>y  selecting  the 
CH  with  the  MANUAL  budorK 

Alt  in  att  I  fourxi  the  Regency  Z30  easy 
(o  set  up  and  understand.  Regency  did  not 
overlook  receiver  performance  In  this  de- 
sign. Some  of  the  allband.  fully-synthe^ 
sized  machines  function  well  on  one  bar^d 
arvJ  suffer  on  othefs.  Since  (fie  Z30 
owner's  manual  actuaffy  published  speci- 
fications for  the  bands  30-50  MHz, 
144-174  MHz.  and  440-51  a  M  Hi,  we  decid- 
ed to  check  some  of  them.  A  friend  who  Is 
a  repeater  owner  ^operator  provided  the 
equipment  and  expedise  required  to  run 
accurate  tests.  Receiver  sensitivity  tt2  dB 
Sinad)  exceeded  the  published  figures  of 


WHAT  DO  you  THINK? 

Have  you  recently  purchased  a  new  product  ttiat  has  beeini  reviewed  In  73?  If 
you  have,  write  and  tell  us  what  kou  think  about  it.  r3will  publish  your  comments 
so  you  can  share  them  with  other  hams,  as  part  Df  our  continuing  el  tort  to  bring 
you  the  best  in  new  product  ifi  format  ion  and  reviews.  Send  your  thoughts  to 
Review  Ed  I  tor.  73  Amateur  Ba^tos  fec/!»rrrcaf  Jouma/.  Peiertiorough  NH  03458, 


.35  uV  at  40  MHz,  .4  uV  a1 160  MHz,  ar>d  .5 
uV  at  465  MHz  by  comfortable  margins. 
Operaling  a  S^meter  hand-held  In  the 
Same  roofn  did  not  cause  Ifte  entire  mid- 
dle baiKl  to  go  dead.  Squetch  action  Is 
cflsp  and  the  audio  quality  Is  acceplable, 
A  tist  of  synthesizef  "birdies"  is  provided 
in  the  owner's  manual.  On  my  sample. 
sofT>e  were  present,  t»ut  ai  least  the  ownei 
la  forewarned. 

TT>e  Z30  pacitafie  is  rounded  off  with  a 
programmable  tirT>e-df-day  clock  and 
alann  clock.  These  clocks  are  programmed 
via  the  keypad.  The  alarm,  wfien  It  soutkIs. 
Is  very  loud,  unmel odious,  and  guaran- 
teed lo  wake  up  anyone.  (I'll  bet  on  thai!)  A 
0PM  switch  allows  the  r>ormally-l}fighi  dis- 
play to  t>e  dimmed  w  turned  off  altogether 
at  night.  A  capacitor  backup  system  Is 
claimed  to  hold  all  programmed  functions 
for  a  week  when  ac  power  is  absent.  1 
didn't  test  this  function  as  l  play  with  my 
Z30  daily,  but  no  data  was  fosi  wtiiie 
transferring  the  unll  to  my  car. 

\  have  two  units  wfth  the  Z30.  The  base 
plite  for  Ihe  touch  pad  is  a  baked,  metal- 
lic-brown color,  The  numbers  and  func- 
tlor«  pninted  by  the  keys  are  almost  un- 
readable under  dim  or  Indireci  illumh 
nation.  The  ''t)eep"  lone  used  to  verify  key 
closures  and  for  ihe  alarm  clock  is  unnat- 
urally  loud  and  harsh.  However,  the  fea- 
tures and  pefformance  of  the  Z30  out- 
weigh these  minof  problems.  Ttie  20-page 
operator's  manual  is  complete  and  under- 
stand  able.  Full  technical  spec  i  heat  ions, 
tfoobleshoot^ng  guide,  and  "national  fre- 
quency list"  are  included. 

For  additional  inforniatlon,  contact  Ae^ 
Q^ncy  BlecuoniCB,  Inc.,  7707  fleco/ds  St, 
Indianapolis  fN  4622&99a6;  pny545-*2af. 
Reader  Service  number  487. 

John  Moilnar  WA^ETD 
GrMntteld  HH 


RTTY  LOOP 


Marc  L  Leawey,  M.D.  WA3AJB 
6  Jenny  Lane 
Pfkesvitie  MD  27208 

Okay,  so  that's  one!  You  see,  as  I  begin 
the  eighth  year  of  this  column,  I  have  to 
admit  to  making  a  mistake.  I  don't  make 
many  here,  but  this  one  Is  a  doozy.  Thanks 
and  a  lip  ol  the  cap  to  Ed  Duellman 
K9FWR.  Duane  Vincent  KA7JEX.  and  the 
countless  others  who  will  no  doubl  wrtte 
t>etween  the  time  I  write  this  n^onth's  col- 
umn and  when  It  sees  pr^nt. 

To  explain,  in  the  April  column  I  dis- 
cussed ttooking  a  Murray-erKoded  tele- 
printer  to  an  ASCI)  port  of  a  compurer,  in 
I  hat  case,  a  Texas  Instruments  T1 -991/4  A. 
The  problem  was  that  I  was  referring  to  a 
Teletype  Model  KSR'35  as  a  Murray  ma- 
chine, it  is  not-  The  Model  35  is  a  11 0-baud 
ASCII  machine.  The  prot>lem  arose  in  my 
scnbt>led  note  to  myself,  wtierein  I  changed 
me  "35"  to  a  "32'\  The  Model  32  Is  the 
Murray  version  of  the  commonly  found 
Model  33t  which  la  also  an  ASCII  machine. 

So,  tf  you  all  will  take  a  pencil  to  your 
April  fssue  and  change  ttie  reference  to  a 
ilodel  35  to  a  Model  32,  all  win  come  out 
ail  rigttt.  Mo,  Ihls  was  rwt  an  intentional 
April  fool's  joke,  although  It  seems  to 
took  like  one.  And*  fortunately,  the  general 
^ASCII-to^Murray  discussion  Ol  last  month 
remains  iinaffected. 


As  f  mentioned  above,  this  is  the  start  of 
the  eighth  yoar  of  HTTY  l^sop.  Because  we 
have  picked  up  a  good  number  of  readers 
In  the  last  few  years.  I  think  It  is  t^me  to  re- 
view some  general  points  that  may  be 
confusing  to  tfvs  newcomers. 

What  ts  RTTV7  "RTTV*'  stands  for  radio- 
teletype,  a  mode  wherein  amateur-radio 
communication  is  maintamed  us^ng  sig- 
nals d«codad  to  activate  various  kinds  of 
teleprinters  or  computers. 

What  kind  of  printers  or  t^omptitaml 
Some  ol  the  pioneering  work  In  RTTY  was 
done  with  teleprinters  which  look  like  the 
ones  you  see  in  newsroom  photos  oJ  the 
19S0s.  Vari<His  designations  are  given  to 
ttiem^  rTK>st  of  them  relating  to  Tetetyp© 
Corporation  model  numtiers.  After  a 
period  of  slow  growth,  where  mostly 
mechanical  teieprlntefs  were  in  use,  RTHf 
Is  now  going  through  a  boom  with  %t\e  ar- 
rival ol  microcomputers.  Software,  that  is, 
programs,  are  available  for  about  any 
home  computer  to  turn  It  Into  a  RTTY  ter- 
minal. 

What  do  you  talk  at^oiit?  Well,  what  do 
you  talk  about  on  ham  radio  in  gerveral? 
Sure,  topics  include  the  equipment  you 
are  running,  the  weather,  and  the  usual 
ruI^^^the'mill  stuff.  But,  since  today's 
RTTYers  are  likely  to  t>e  In  the  forefront  of 
digital  technology,  computers  and  the  like 
are  atso  active  topics.  Not  only  Ihat,  but 


RTTY  stations  afso  can  send  lorvg  texts 
such  as  nw^sages,  programs,  and  the 
like,  and,  especially  arourvd  holidays, 
some  of  the  famous  RTTY  pictures. 

Wh&r0  can  f  find  a  RTTY  station!  Still 
popular  after  all  these  ysars.  look  for  the 
doodiedo  of  RTTY  signals  arourwl  3520 
kHz  or  14060  kHz.  Timers  are  ott^er  spots, 
and  you  may  even  find  a  focat  two-meter 
repeater  with  a  RTTY  net. 

Wow  much  will  it  cost  to  g&t  or?  RTTY? 
How  much  does  a  car  cost?  You  can  prob- 
ably locate  an  old  teleprinter  around  for  a 
few  dottars.  Simple  AFSK  generators  and 
demodulators  have  been  published  here 
and  will  be  published  In  the  future  as  new 
designs  appear.  Or,  If  you  have  a  micro- 
computer such  as  a  CoGo  or  any  of  the 
6602  mactiir^es,  a  sawtxjck  or  two  should 
tKing  you  enough  programming  to  put 
that  machine  on  the  air.  It's  clearly  r^it  out 
of  reach  for  nrosi  hams. 

Where  ca/7  /  Hnd  out  more?  You  kr>ew 
ttnere  had  to  be  a  point  to  all  ol  this,  right? 
Well,  you  are  holdir^g,  in  your  hand,  a  po- 
tent source  of  RTTY  information.  Keep 
reading  73,  keep  reading  RTTY  Loop,  and 
you  should  tie  able  to  get  all  the  Informa- 
tion you  ne^. 

I  was  not  kidding  about  the  bargain  ma- 
chines, folks.  As  I  write  Ihls  column,  I  am 
recovering  from  a  day  at  the  Greater  Balti- 
more Hamfest  and  Computer  I  est.  Ne^t 
month  i  hope  to  prlnl  a  few  photos  of  the 
sights.  Deadline  precludes  getting  the 
film  processed  this  month,  tiut  let  me  tetl 
you— Model  15  and  Model  33  teleprinters 
were  tieing  sold  for  leas  than  fifty  dol  Fa  re, 
some  for  much  less!  The  computer  dis- 
plays, tables  and  tattles  of  thiem,  olten 
showed   F1T7Y  programs  available.  The 


tide  is  turning,  ladies  and  gentlemen,  arkd 
RTTY  Is  growirvg  faster  then  evert 

I  have  a  letter  here  from  Eric  W.  Daven- 
port N4DT€  who  is  using  a  SSOg^based  mi- 
crocomputer under  the  FLEX  operating 
system  and  is  looKinp  for  a  RTTY  program 
to  use  on  that  computer.  Well,  Ertc,  I  tuive 
looked  around  and,  sorry  to  say,  can  flrwl 
nothing  that  would  support  the  system 
you  are  using.  That  is  not  to  say  It  does 
rvoi  exlstn  though,  and  if  any  readers  are 
using  such  a  system  on  RTTYh  I  would  t>e 
hi.ppy  to  hear  abovt  if  and  will  pass  tt\e  irv 
formation  along  to  Eric  One  source  you 
might  try  Is  '6&  Micro  Jourrtaf,  a  rnon1h?y 
magazine  devoted  to  the  fl8xx  series  of 
computers.  Tliey  lean  toward  FLEX  and 
6609s,  so  it  sounds  like  your  league.  You 
can  subscritie  for  one  year  by  sending 
$24.50  to  '6ff  Micro  Journal,  5800  Gassan- 
dra  Smith,  PO  Bo)t  ft49,  Hiicson  TN  37343, 
Be  sure  to  drop  my  name,  ok? 

Orte  more  ham  wfio  has  fourMJ  ha;>< 
piness  with  a  Tl'9W4A  is  Paul  Schmidt 
W9HD.  Paul  passes,  along  his  comments* 
with  the  note  that  his  computer  la  on  tr^ 
air  with  the  aid  of  the  Kantronlos  Hamsolt 
program  and  the  AEA  CP-I  "Computer 
Patch."  He  enjoys  operatmf  RTTYh  tiut  I 
fiBVB  to  paits  alor^g  his  last  few  iines^  You 
see.  Paul  works  as  a  radio  operator  on  a 
supertanker,  and  he  writes,  "By  the  way, 
I'm  not  too  enthusiastic  at>out  AMTOR. 
On  tf*e  ocean,  we  have  SITOR  and  MARl- 
SAT.  On  this  ship,  we  have  neither  one.  I 
send  my  traffic  a  letter  at  a  time  on  CW. 
How  atXHTt  that?"  Thanks,  Paul,  artd  I  do 
appreciate  tl>e  comments. 

Here  Is  another  letter  from  a  ham  trying 
to  put  yet  another  kind  ol  computer  onto 
HTTY.    John    A.    Palese,    Jr.    WBSJPH/5 


73  Magazine  •  June,  1984    93 


wrrtos  several  quesUons.  The  first  seeks 
Ihe  existence  of  a  program  to  place  an  Oi^ 
t»rne  1  on  tr>t  air  on  MOfSe,  Murray,  and 
ASCII,  Well,  the  last  one  k&  emy,  John. 
Any  terminal  program,  such  a$  the  public 
tlomaln  MODEM7,  will  do  f^n#  to  produce 
ASCII.  I  have  not  seefi  anything  on  the 
boards  for  RTTY  or  OW,  but  I'll  keep  my 
screen  cleen  and  looking, 

John's  next  qimation  shall  be  para* 
phrased  tor  obvious  raagons.  ''What  do 
you  ttiink  ot  the  MLlchIg  compytar  with  a 
Flalschig  interface  tor  use  on  RTTf?"  Un- 
less I  have  seen  the  combination  in  ques- 
IktOt  tttere  Is  no  way  I  can  answer  the 
UMiitionl  As  a  njte,  any  r«f>utmbl«  product 
•ppttars  to  be  functionaL  I  have  received 
very  few  "lemon"  reports,  and  those  I  try 


to  pass  along  as  best  I  can  here  in  ttte  col- 
umn, usual ty  quoting  the  reviewing  ams- 
tetjr  dtfOdly.  1  would  encourage  you  to 
look  around  to  see  if  you  can  play  with 
someone  eisa's  system  In  your  area  be- 
fore y04J  buy^  I  <k>n't  know  that  I  woo  Ed 
base  the  purctisse  of  a  partlcutai  micri> 
computer  on  the  desire  to  run  RTTY,  how- 
ever, tl  Is  rapidly  appearing  that  any  orw  of 
the  "consumer"  line  has  supporting  soft^ 
ware- 
So  yotj  sea,  my  overall  actvlce  If  you 
want  to  run  a  computer  on  RTTY  is  to  first 
pick  I  he  £x»frtputef.  Pick  it  for  what  It  can 
{So  within,  aivt  wlthoi^.  amateur  radio. 
After  all,  a  computer  la  loo  powerful  a  tool 
to  limit  to  one  use  only.  For  that  you  could 


get  a  dedicated  terminal.  TTwri  look  for 
software  and  interfaces  that  appeal  to 
you.  Believe  me^  whatever  I  have  seen  I 
write  about.  If  I  have  not  written  up  a  par- 
ticular program  or  Interface,  it  Is  not  rte- 
cessarHy  twcause  II  is  tied;  I  probably 
have  not  had  any  hands-on  eKp<^ure  lo  It. 
And  as  atited  here  before,  i  won't  write  up 
an  item  based  on  a  press  reieese  unless 
Ihere  are  extenuating  circumstances.  I 
have  done  that  in  the  paat  and  we  all  got 
bitten^ no  mora! 

Hope  that  Helps  you  out,  John,  and 
thanka  for  Xfm  not«t 

Because  of  the  two-month  delay  bo- 
tween  the  time  I  write  this  column  and 
publication,  i  am  dragging  my  feet  this 


month  on  itie  Iniormai^on  sheet  marv 
Honed  iatt  month,  t  want  to  see  what  the 
reaponaa  Is  and  attempt  to  react  accord- 
ingly. So  I  am  stIH  offering  the  first  of  sev- 
eral planned  information  sheets  on  RTTY. 
Simply  send  a  Be  If -addressed,  stamped 
flffiKtopo  or  autfielent  US  funds  for  pt^* 
ug0  to  foreign  staitona  with  S2.00  to  ttie 
above  address  for  the  first  sheet,  an  ala- 
mantary  introduction  lo  RTTY.  If  the  de- 
mand keeps  up,  sheais  will  be  Introduced 
lo  cover  many  of  the  atemantary  topics 
discussed  In  past  columr^. 

Next  month  will  ir^lude  a  looR  at  ttte  re^ 
cent  hamfest.  If  the  pictures  corrife  out 
and  more  of  this  and  that.  Let  me  trear 
from  you,  then  look  tor  your  name  here»  In 
RTTY  Loop. 


FUN! 


John  Edwards  Kf2U 
POBox  73 

Middle  VUfage  NY  1 1379 

BASIC  C0MPUT1KQ 

It  you're  a  fcxward^th inking  ham  {as  op- 
posed to  I  hose  lids  who  devote  ttieir  lives 
to  repeaters  and  rag^hew  nets),  you  prot»- 
ably  own  a  microcompter.  But  do  you  ever 
actually  program  your  machine?  Proda- 
t)ly.  But  odd  a  are  that  you  get  mofe  use 
out  of  canned  sol t ware  than  your  own 
cteaUona. 

As  my  dear  friend  Doctor  Digital  always 
says,  programming  is  tun.  That  n^ay  be 
true.  But  which  language  Is  best? 

Basic  Is  by  far  the  most  popular  micro 
languaga.  Basic  in  ROM  is  a  standard  fea« 
ture  on  most  pefsonal  computers.  Still,  its 
awkwaid  syntax  and  arcane  struct  ura 
maka  it  a  clumsy  language  lo  use  in  all  tKJt 
the  most  simple  (dare  ^  say  baaiq?)  appil* 
cations.  Pascal  Is  much  nicar,  but  has 
been  slow  to  catch  on.  Everyone  likes  Paa* 
cal,  but  few  actually  seem  to  write  soft- 
ware with  it.  AssamOler  is  bet  let  yet,  bul  is 
much  too  compltcalect  for  newcomers  to 
haridle. 

So  we're  stuck  with  Basic.  All  In  all,  frs 
not  an  Imposslbia  language  to  work  with, 
given  Its  inherent  llmliattons.  More  than 
one  Fiaid  Day  logging  program  has  bean 
writiafi  In  this  language  ar^  I  supfMse 


hams  will  continue  to  use  Basic  for  years 
to  come. 

This  month,  for  bet  tar  or  worse,  FUN! 
looks  at  the  world  of  Basic.  GOTO  Ela- 
n%ent  i, 

ELEMENT  1 
MULTIPLE  CHOtCE 

1)  The  original  form  of  Basic  is  known  as: 
1^  Dartmouth  Basic 

2^  Princeton  Basic 

3)  Original  Basic 

4)  Basic  Basic 

2)  Which  ot  the  following  Extended  Color 
Basic  oommands  teUs  a  Radio  Stiack 
TRS^  Color  Computer  to  send  sound 
through  a  TV  speaker? 

1)  SOUND  ON 

2)  SPEAKER  ON 

3)  AUDIO  ON 
41  TV  ON 

3)  Wtto  invented  Basic? 

t^  Stan  Wright  and  Herb  Anderson 
2}  Frank  Sullivan  and  Steven  Klein 

3)  Thomas  Mcintira  and  Steve  Jobs 

4)  John  Kemeny  and  Thomas  Kurtz 

4)  What  function  does  the  system  oom- 
mand  CALL  -  151  serve  on  an  Apple  117 

1)  Puts  ttie  computer  into  ttie  rrtonitor 
mDde 

2)  initialises  slot  1 

3)  Activates  I  he  computer's  60>0olumn 
card 

4)  POKES  the  decimal  value  tSt  into 
immory  location  167£3 


HAM  HELP 


I  need  a  ect>ematlc  and  service  manual 
for  the  Lafayette  BCR-101  shortwave 
receiver. 

Marvin  H*ta  W2WKU 

204  Quiinaway  Road 

Elme  NY  140S« 

Wanted;  Program  tor  tiw  Commodore 
VIC-20  and/or  C-64  computer  to  allow 
them  to  t>e  used  as  an  electronic  maEitwic 
(B6BS  or  M SO)  on  the  air  on  ASCII  and/Or 
Baudot;  may  be  commercial  program  or 
tiometxew. 

SSQ.  Qary  E.  Kohlala  DA2Xf 
OSAF&A,  Box  1416 

APONroe45« 


Wanted:  An  Instruction  manual  lor  a 
Leeds  and  North rup  galvanometer  brldgSn 
catalog  #4270.  safiai  #1041207,  Will  gladly 
pay  U>pying  and  mailing  costs* 

Vemon  Jonas  WBlfiVH 
32  Cat  Motwam  Road 
Kannabunit  ME  D4043 

Can  you  help  me  find  a  book  tor  trouble- 
shooting radio  problems?  Especially 
receivers.  I'd  like  lo  urtderstand  the  theory 
arHi  wtiai  to  check  fof  with  particular 
symptoma- 

RayPoH 
J922  Calumat 
Fnnt  Ml  4«S03 


5)  Wtiat  function  does  I  PL  serve  on  Radio 
Shack's  Modei  1007 

1)  Automatically  aitecytes  a  spec i Med 
program  as  soon  as  the  computer  Is 
switched  on 

2^  Seta  the  computar^s  raaKtime  clock/ 
calendar 

34  Initializes  ttie  300  tiaud  modem 

4^  It  serves  rto  purpose 

6)  The  Commodore  64  comes  with  how 
many  bytes  of  random-access  rnemory? 

1)  teK  bytos 
2)32Kbytes 
3j4aK  bytes 
4iS4Kbyt05 

7)  CPfM  ia: 

1}  A  language 

2)  An  operating  syatam 

3)  A  local  area  network 

4)  A  popular  word-processing  program 

8)  PRINT  USING: 

i)\&  not  a  Basic  Statement 

Q  Tails  ttie  computer  to  print  strings 
uS4  ng  a  non-ASCII  format 

3J  Prints  numbers  Of  strings  In  a  vari- 
able formal 

4Hb  a  standard  part  of  Applesoft  Basic 

9)  LUST  Jo  Microsoft  Basic: 
1)  Prints  listings  langthwEse 

2}  Cannot  tie  used  as  a  program  state- 

mofit 
3}  Sends  a  listing  In  merTKHry  to  a  printer 
4)  Prints  liBllngs  twice 

10)  On  a  TRS-BO  Model  III.  PRIhfT®: 
1)  Would  print  iha  character  "@'' 

2}  Tells  the  computer  to  print  a  ctiar- 
acter  at  a  specific  point  on  the  video 
display 

3)  Is  r>ever  used 

4)  Tells  the  computer  to  output  to  a 
printer 


ELEMENT  2 

TRUE  FALSE 

Separate  the  working  from  the  non- 
function a  I  Basic  program  lined. 

TriM       Ffllia 


ly  TO  7  'HELLO* 

2)  to  C  ^  A  PLUS  B 

3)  ID  LET  A  =  B 

4)  10  FOR  I  =  1  -  S 

5)  10  A  +  6  =  C 

6)  10  C  =  A  X  B 
7)101FB  =  C 
m  to  GOTO 

gj  10  INPUT  10 
10}  10  PEEK  167^ 


ELEMENT  S 

SCRAMBLED  WORDS 

Unscramble  the  rol towing  Basic  corrv 
mands  and  statements; 
UNR  TtSL  RtTPLN 

PUINT  BUGQS  EWN 

LAREC  HENT  POST 

ONE  FENTID  MID 


ELEMENT  4 
FILL  IN  THE  BLANK 

1)  Many  Basic  programs  use  a /NEXT 

loop, 

2)  Every  RETURN  must  have  a , 

3)  Programmer  commants  are  contalnad 
in  a statement. 

4)iFA  =  2D 60 

5}  To  get  a  result  from  READ,  one  must 
supply  at  least  one . statement. 


THE  ANSWERS 


1.  S-t.  6-<  7^2, 


Elmrmnt  f : 
1*-1,  2—3,  3—4.  - 
S— 3. 9—3, 10—2. 
Et^ment  2: 

I^Trua     The  question  mafh  will  work 
as  a  PRINT  atatement  or 
command  on  most  personal 
computers. 
2— True      But  netref  A  +  B  »  C. 
3— True      LET  Is  optlor^l,  bot  you  can 
toss  it  in  if  you  want  to 
waste  memory, 
4— Falsa    TO.  not  '-",  is  what  woflts. 
5— Falsa    Sae  qyesUon  2. 
e— False    lyiuttipily  with-'^notrx." 
7— False    Not  a  compMKMHiaMtt. 

Toss  In  ft  TH@«. 
3— False    No  line  numtMrspadfied. 
9— False    Needs  a  varfatrie, 
1 0 — Fal  se    M  emory  address  must  be  I  n 

parentheses. 
Eiemeitt  3: 

RUN.     UST.    LPRINT;    INPUT.    GOSUB. 
NEW;  CLEAa  THEN,  STOP;   END.  DE- 
FINT,  DIM. 
Eisment  4t 
1— FOR 
2--GOSUB 
3— REM 
4— THEN 
5— DATA 


SCORING 

Eiemenf  !: 

Two  and  one4^alt  points  for  eacti  correct 

answer. 

Bioment  2: 

Two  and  one-tiaff  points  fof  each  correct 

answer. 

Eiement  3: 

Two  points  for  eacfi  word  unscrambled. 

Ef^mem  4: 

Fiva  points  for  each  vvord  cfirraeily  fitlod  \tu 

Have  you   conquered   trie   basics   of 
Baalc? 

1-20  points—  Til  Ink  computers  are 
^usl  a  fad 
21-40  points —  Tbink  computsf  pficas 

ani  atti)  too  high 
41-60  points—  Happy  to  run  canned 

software 
61-^  points—  A  true^lue  hackaf 
81-100  points^  Program  in  machine 
code  for  kicks 


M     73  Magazine  •  June,  19B4 


ELECTRONIC 
COMPONENTS 


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73  Magazine  •  June,  1984    «5 


CONTESTS 


Robert  &3km  WB2GfE 
15  Windsor  Dr 
Atco  NJ  08004 

ABRLVHFQSORAflTY 
Starts:  1600  GMT  June  9 
Ends:  0300  GMT  June  11 

sponsored  by  tha  ARRU  the  object  I?  to 
work  as  fnany  amateur  slalions  In  as 
many  di(fei:«ht  ARRL  sections  ai>d  coyn- 
Irios  »s  pc^sltfte  using  suttiorUdd  smtr 
teur  froqueocios  abov^  50  MH£. 

Operating  oaiegorles  Include  singla^p- 
erator  u  sing  mu!  tl-  or  3J  ngl  e  ba  nd  i  or  m  u  1 1  i- 
operator.  Slng(e<»per3tor  jj  tat  Ions  must 
use  ona  person  for  ell  of>eratJng  and  log- 
gIniQ  f  unci  lions.  SJr>gle^>pefalQr  stationa 
may  subTnit  single-band  scores  im  SO, 
144,  220,  432.  and  12d6-and-ijp  categories. 
ContiCts  may  t>e  made  on  any  and  all 
bafida  without  jeopardizing  stngle^and 
entry  status.  Stieh  additlofiat  contacts  ajre 
encouraged  and  should  be  reported. 

Multi-opefator  stations  must  locate  all 
equipment  (including  anlennas)  within  a 
30O-ma!er  circle. 

StatEona  may  be  wofked  oncm  par  taralt 
regardless  ot  mode.  EacJi  QSO  mwsl  \yt 
acknowledged;  on&'way  exchanges  do 
not  count.  Foreign  siaiions  may  weak  only 
stations  in  the  USA,  Canada,  and  US  pos- 
sessions for  cont«i^1  credit. 

Reirarismitting  sith«f  or  bottv  staiions 
or  uM  ol  repeater  frequencies  Is  not  per- 
mitted. Contesi  eni rants  may  not  transmit 
on  repeaters  or  repeater  fre<^uencies  on  2 
metefs  to  solicit  contacts.  Use  of  the  na- 
tional calling  frequency  (146.52)  or  imme- 
diate adjacent  guaid  frequertciss  ts  also 
protiibited.  Only  recognized  simplex  fre- 
queficies  may  be  used,  such  as  144.90  to 
145.10;  146.49,  .55>  and  5fi;  and  147.42,  .43, 
,48,  .51.  .54,  and  .57  MHz  on  the  2-meter 
tiand.  Local-option  simplex  channels  arrd 
Irequenctes  adfacent  to  the  above  that  do 
not  violate  the  Intent  of  tt>e  contest  rules 
Of  the  spirit  arii^  intent  of  the  band  plans 
as  recommended  in  the  AH  fit  Repealer 
Directory  may  b&  used  for  contest  pur- 
poses. 

Ail  operation  must  be  fixed,  portat^le,  or 
mobile  under  one  cat!  from  or^e  ARRL  sec- 
tion. A  transmitter  used  to  contact  one  or 
more  stations  cannot  be  used  under  any 
Dttier  call  during  the  contest  per  tod  with 
the  exception  of  famtty  stations  where 
more  tfian  one  call  is  assigned  to  one  lo- 
cation by  FCC/DOC.  Also,  one  operator 
may  not  give  out  contest  OSOs  using 
more  than  one  call  sign  from  ar\y  one  lo- 
cation. 

Only  OTM  signal  per  bartd  at  any  given 
time  fs  pwmitted,  regardless  of  mo<te. 
While  no  minimum  distance  is  specified 
for  contacts,  equipment  should  be  capa- 
ble or  real  communications  (i.e.,  able  to 
communicate  over  at  i^isi  «  mite).  Multi- 
operator  stations  may  fkCA  lr>clu<ie  QSOs 
with  their  own  operators  except  on  fre- 
quenctes  highaf  than  2^  GHi.  Even  then, 
a  complete,  different  station  must  exist 
for  each  QSO  made  under  these  condi- 
tions. 

Abom  300  GHz.  contacts  ire  permitted 
for  contest  credit  only  belwean  licensed 
amateurs  of  Technician  class  or  higher 
using  coherent  radiation  on  transmlsaJon 
(e.g.,  laser}  and  employing  at  least  orve 
stage  of  e^lrontc  detection  on  receive. 

73  Magazine  *  June,  1M4 


EXCHANGE: 

fiame  o(  section,  VE  province,  or  OX 
country.  Must  he  acknowtedgad  tiy  t>oth 
operators  for  credit  by  either. 

SCORING: 

Cotint  €ne  point  for  sacti  {^xnpiete  50- 
or  144-MMz  QSO.  2  points  for  each  220-  or 
420-MKz  OSO,  and  3  points  for  eacti 
1215-MHz  and  above  QSO-  Crosstmnd 
QSOs  ^  not  count. 

Muitipiiets  count  onoe  per  t>and:  each 
ARRL  section  In  the  contlgyous  48  slates 
f63  maxX  eacti  Canadian  province  (max. 
12),  and  each  DXCC  country  (excluding  W 
and  V^. 

REPOHTiNG: 

Entries  must  tie  poatmarlted  rw  lat^ 
than  July  1 1  ih  and  s«nt  to  the  ARRL  Head- 
quarters in  Newington  CT  06111.  Official 
entry  forms  ara  available  from  the  same 
address  for  an  5AS&  Usual  ARRL  disqual^ 
Itication  rui^  apply,  Usual  awards  to  top 
scorers  in  each  ARRL  section,  some  limit- 
ed to  wtiere  signiticani  effort  or  competi- 
tion is  evidenced,  MuitI -operator  entriee 
are  not  eligible  for  single-band  awards. 

SUMMER  SMIRK  PARTY 

Starts:  0000  GMT  June  16 

Ends:  2400  GMT  June  17 

Tht  contest  is  sponsored  by  the  Six- 
Mater  International  Radio  Klub  (SMIRK]. 
No  cro^aband  contacts,  mult  I -operators, 
or  partial  contacts  are  el  lowed  Check 
logs  or  dupe  sheets  are  not  needed. 

EXCHANGE: 

SMIRK  number  and  ARRL  Section,  for- 
eign state,  pfovirv^,  prefecture,  or  coun- 
try. Count  ARRL  sections  in  the  46  US 
Slates  only;  KHfi  and  KL7  count  as  coun- 
tries. Washington  ^  counts  as  a  section 
as  well  Canadians  count  as  provinces,  aft 
others  count  as  states,  provinces,  prefec- 
luras*  or  countries. 


SCORtNQ: 

Count  2  points  for  each  SMIRK  contact. 
1  point  for  non-SMLRK  QSOs.  Add  QSO 
points  and  multiply  by  numter  ot  ARRL 
secttons,  foreign  states,  provinces,  pr*^ 
feci  u  res,   or  countries   worlced  for  linat 
Bcore. 

AWARDS: 

Certificates  for  high-scon'ng  SMIRK  In 
two  divisions:  US/Canada  arwl  foreign. 
Certificates  for  high  score  in  each  ARRL 
section  arid  foreign  state,  province,  pre- 
rectur»f  or  country, 

ENTRIES: 

Entries  must  be  sutimttted  on  the  fail. 
1»eit  edition  of  the  official  SMIRK  log. 
Single  copies  are  available  for  an  SASE 
and  photocopies  may  be  used.  Send  tog 
rec^uests  and  entries  postmarked  by  July 
8th  to:  MarX  S^  Anderson  WB5NPK,  8932 
Sa^ie  Trail,  San  Anto^^io TK  7B2S5. 


ARRL  FIELD  DAY 
Starts:  1600  GMT  June  23 
Ends:  2100  GMT  June  24 

sponsored  by  the  ARRL,  the  contest  is 
open  to  all  amateurs  in  the  ARRL  Field  Or- 
ganization plus  Yukon  and  HWT.  Foreign 
ttations  may  be  contacted  for  credit  but 
are  not  eligible  to  compete.  T?ie  ob|ect  Is 
to  work  as  many  stations  as  possible 
Under  less  than^ldeai  conditions.  Oper- 
ating times  are  limited  da  pending  on  your 
operating  class:  CfiecK  rules  below. 

Entry  categories  are  classified  by  the 
maximum  nurrt>er  of  simultaneous  trans- 
mitted signals  fallowed  hy  the  designa- 
tion of  the  nature  Of  tha  Individual  or 
group  participation.  Below  30  MHz.  a 
transmitter  must  femain  on  a  particular 
band  for  at  least  15  minutes  or^ce  used  for 
a  corttact  on  tlut  band.  During  this 
tS-minute  period,  the  transmitter  is  con- 
sidered to  be  transmitting  a  signal  (ev^n  if 
it  Is  not)  for  purposes  of  determining 
transmittif  class.  Switctiir^  devices  are 
prohibitedL 

Class  A  consists  of  club  and  FU>n-c1ub 
portable  stations  specif  I  caliy  set  up  for 
Field  Day.  Such  stations  must  be  located 
In  places  that  are  not  regular  station  toca^ 
tions  arid  must  USS  no  faciiltles  Inslailed 
for  permanent  station  use  nor  any  struc- 
lurea  instated  pemiar^ntEy  for  FD  use^ 


CALENDAR 


Jun  9-11 
Jun  1&-17 
Jun  23-24 
Jul  I 
Jul7-« 
Jul  1^15 
Jul  14-15 
Jul  28-29 
Aya4-& 

Atie  11-12 

Aug  18-19 
Aug  24-27 

s«pa-9 

Sep  15-17 
Sap  23-23 
Od  f-7 
Oct  1^14 
Oct  20-21 
Nova*4 
H0«  17-11 
Dae  1-2 
Dae  a-9 
Dec  26-Jin  1 
Dec  30 


ARDL  VHF  QSO  Party 

Summer  SMIRK  Party 

ARRL  Field  Day 

Canada  DayConl««t 

YV  Independence  Worldwide  Corrtest~S5B 

AS  Internatlonsi  SSTV-OX  Contest 

tARU  Radlcwport  Chsmptonshlp 

YV  Independence  Worldwide  Contast— CW 

ARRL  UN  F  Contest 

Kiw  Jersey  OSO  Party 

SARTQ  Worldwide  RTTY  Contett 

A5  North  Amertctn  UHF  FSTV^DX  ConlnBt 

ARRL  VHF  QSO  Party 

Wafrhtngion  Ststa  Q$0  Party 

Lata  Summer  QRP  CW  Acthrily  Weekend 

ARRL  QSO  Ptrty-CW 

ARRL  QSO  Party— Ptwne 

Jamboree  On  ttie  Air 

ARRL  Sweefutakn^CW 

ARRL  S weepatakea ^Phpfla 

ARRL  160-Meter  Cofktasl 

ARRL1(^M«terC0ftta«t 

QRP  Winter  SportS^CW 

Canada  Conteat 


Stations  must  tie  operated  under  one  caii« 
sign  and  under  the  controi  of  a  single  li- 
censee or  trustee  for  each  entry.  All  equip- 
ment (IfKluding  antennas)  must  lie  within 
a  aoo^meter  circle.  All  contacts  must  be 
made  vtiih  transmitters  and  receivers  op- 
erating Independent  of  commercial 
mains.  Entrants  who,  for  any  reason, 
operate  a  transmitter  oic  receiver  from 
commercial  mains  for  any  contacts  will  be 
listed  separately  at  the  erid  of  ttieir  class. 

Any  Class- A  group  wtiose  entry  classifi- 
cation ]a  two  or  more  transmitters  (non- 
Novice)  may  also  use  one  Novice/Techni- 
cian operalirtg  position  (Novice  bands  on- 
ly) witfwul  changing  its  basic  entry  classl- 
flcatkm.  This  statiw  (including  antennas  J 
should  be  eel  up  and  operated  by  Novice 
and  Technician  licensees  and  should  use 
tha  cailsign  of  one  of  tlieae  operators. 

Class  B  consists  of  r>on-club  portaJ?ie 
stations  set  up  and  operated  by  not  more 
Itian  two  licensed  amateurs.  Other  provK 
Sionfi  are  the  same  as  for  Class  A. 

Class  C  consists  of  mol>iia  stations  in 
vehicles  capable  of  operation  while  in  mo- 
tion and  normally  operated  In  this  tn&n- 
fwr,  tncludir^  antenna.  This  Includes 
nrwrttlme  and  aeronautical  mobiies- 

Class  D  consists  of  stations  operating 
from  permanent  or  licensed  station  loca- 
tk>ns  using  commercial  power.  This  group 
of  stations  may  only  count  contacts  made 
with  Glass  A^  B,  C.  ar>d  E  Fl«ld-Day  groups 
for  points. 

Class-E  stations  are  the  same  as  Ciase 
D  except  they  use  emergency  power  for 
transmitters  and  receivers.  Tfiey  can  work 
stations  in  ail  classes- 
Operators  participating  tn  FD  may  r^t 
contact  for  point  credit  the  FD  portable 
Station  of  a  group  with  which  they  partici- 
pate. Any  statiort  used  to  contact  or>e  or 
more  FD  stations  may  not  be  used  under 
any  other  caif  during  tt>a  FD  period,  ex- 
cept  for  family  stations. 

Each  phone  and  each  CW  segment  la 
conslcSered  as  a  separate  band.  All  voice 
contacts  are  equivalent,  arwl  RTTY/A5CII 
Ls  counted  as  CW.  A  station  nnay  be  worked 
or^e  on  each  t>and — crossband  contacts 
are  not  allowed.  The  use  of  rnore  than  one 
transmitter  at  the  same  time  in  a  single 
band  is  prohibited,  eiccapt  that  a  Nov- 
IceH^echnician  position  may  operate  on 
any  Novice  band  segment  at  any  tim&  No 
repeater  contacts. 

EXCHANGE: 

Stations  in  any  Af^RL  section  send  Fleld- 
Oay  operating  class  and  ARAL  section.  A 
fouf-transmltter  station  in  NJ  wouid  send 
**4A  r4J".  Foreifin  staiions  aend  BS(?)  and 
QTH. 

SCOPtiNG: 

Scores  are  based  on  ttie  numt>er  ot  valid 
contact  points  times  tr>e  multiplier  corre- 
sporKJlT>§  to  the  tvighest  power  used  at  any 
time  during  the  FD  period,  plus  bonus 
points.  Ptione  contacts  are  one  point 
each,  CW  counts  two  points  each.  Power 
muftipilers  arec  &  for  uaifftg  a  dc  Input  pow< 
ef  of  low  (20  W  PEP)  CM-  less  tor  S-W  6c  out- 
put/10-W  PEP  output)  and  if  using  a  power 
soun^a  other  than  commercial  mains  or 
motor^f riven  generator;  2  for  using  a  dc  irv 
put  power  of  200  W  or  less  on  CW  and  400 
W  P£Por  let«  on  SSi;  1  for  using  anything 
higher. 

Batteries  may  be  charged  while  ir^  use 
for  Ciass-C  entries  only.  For  other 
classes^  batteries  charged  during  the  FD 
period  must  be  charged  from  a  power 
source  independent  of  the  commerciaJ 
mains^ 

Bonus  points  will  be  added  to  the  score 
(after  the  muitlpller  is  applied)  to  deter- 
mine the  tinal  score.  Only  Class-A  and 
Qlass-B  Slit  ions  are  eiliglbJe  for  bonittes: 


i 


I 


1)  fOOV*  fm*fywicy  Poww— 100  points 
per  tranBmttter  for  100%  emerQency 
power  AH  equlpmant  and  facUtties  at  the 
R>  site  must  be  operated  from  a  sottrca 
Indepemlent  o(  the  oonvnercls]  mains. 

2)  Pubffc  Rsfatfons ~-iOO  points  for  pub- 
lic relations.  Publ  Icily  must  b$  obtained  or 
e  bona  fide  attempt  to  obtain  pubilclty 
must  be  m^de,  or  oparat^on  must  be  con- 
ducted from  a  public  f^iace  tsuch  as  a 
shoppir^g  c«nt<f).  Evicfeiice  must  be  sub- 
mitted In  the  form  ol  a  clipping,  a  memo 
from  a  BC/TV  statlor^  that  publicity  was 
given,  or  a  copy  of  material  that  was  sent 
t&n&wf^  n>edia  for  publicity  purposes. 

3}  M9ss&g&  Offpfft9Hon—^00  poim«  fw 
origination  of  a  message  by  the  club  presh 
dent  or  other  FD  leader,  addressed  to  the 
SM  or  SEC^  stating  tfie  club  name  (or  nor^ 
ctub  croup^.  numt^ei  of  op&raiofs,  field 
tocallon,  and  numt^er  Of  ARES  members 
parti  ci  pat  i  rig.  The  rneaaage  must  t>e  tran^- 
mitted  during  the  FD  period  and  a  fuliy^ 
serviced  copy  of  It  must  be  Included  with 
11^  FD  report.  The  friessage  must  be  in 
standarti  AHftL  message  form  or  r*o  CfMit 
will  be  gfven, 

4}  Mess&g6  Repty~1Q  points  for  each 
message  received  and  relayed  during  the 
FD  poriodL  up  to  a  maximum  of  100  points. 
Copies  of  each  metaage,  property  ««r- 
viced,  must  be  incJwIad  with  tlw  FD 
report, 

5)  Satellite  OSO— 100  points  can  be 
earned  by  completing  at  least  or^e  OSO 
¥ia  satellite  dufing  the  FP  period^  The  ra^ 
pealef  pfovision  is  waived  for  sateJUte 
QSOe  and  a  satellite  station  does  not 
count  as  an  additional  transmitter.  Show 
sateiJJte  QSDs  as  a  separate  band  on  the 
summajy  stieei:. 

6>  Naturst  J^onver— FD  groups  mahir^  a 
minimum  of  5  0S03  without  using  power 
from  commerclaf  mains  or  petroleum  de- 
rtvatives  can  earn  100  points,  ttils  alterna' 
tlva  powef  source  also  includes  batteries 
charged  by  natural  means  fnot  dry  cells). 
The  natura^^wer  station  counts  as  an 
additional  transmitter.  If  you  do  not  went 
to  change  your  entry  class,  take  one  of 


ioSomt 


NEWSLETTER  OF  THE  MONTH 

Tlie  North  Rorlda  Amateur  Radio  Society's  Balanced  Modulator  la  coo- 
aistentiy  one  of  the  best  club  publications  In  the  nation.  In  addition  to  lively 
editorial  commentary  and  very  comprehensive  ham  news  coverage,  BM  al^o  in- 
cludes Pete  NIssen  W4PTT's  weii-dof»  "DX  and  Ottwf  Stuff"  column.  Two  Otlter 
features— unique  and  valuable — bogan  with  the  March  Issue;  a  MQFAF^  mem- 
bef  business  and  services  directory  and  NOFARS  assistance  ar\d  aiivice  net- 
work  llstinga.  Congratulations,  President  Biiiy  Wlliiama  N4UF  and  all  NOFAflS 
members  I 

To  enter  your  club's  newaittter  in  ZJs  Newsletter  of  the  Month  Contest,  send 
It  to  ?3.  Pine  StrsAt,  FelerbonHigh  HH  03458.  Attn:  New&iettef  of  the  Month. 


your  other  transmitters  off  the  afr  while 
making  the  naiufal-power  OSOs.  A  sepa- 
rate list  of  natural -power  QSOs  slioukl  t>e 
#n€losed  w^th  your  entry. 

7)  W1AW  Message— A  bonus  of  tOO 
points  will  be  earned  by  copying  a  special 
ARRL  FD  buileiln  sent  over  W1AW  on  tts 
reQui  arfy  anr>ourvced  frequeficies  just 
Iwfore  and  during  FD.  This  rn^tsafp  can 
be  received  directly  from  W1AW  or  by  any 
relay  method.  An  accurate  copy  of  the  re- 
ceived massage  should  be  included  In 
your  FD  report 

REPOBJINQ: 

Entries  must  tie  postmarked  by  July 
24th;  no  late  entries  can  be  accepted.  A 
compiete  entry  consists  ot  a  summary 
sheet  and  a  Usi  of  atattons  worked  on 
each  bandAnode  during  FD,  plus  bonvs 
proof.  The  fist  of  stations  wodted  on  each 
band  or  mode  may  take  the  form  of  official 
ARRL  dupe  sheets  or  an  alphanumeric 
Jlsiing  of  callsi^jins  worked  per  t>and  and 
mode.  This  tist  may  'be  computer-geflfif* 
ated  IrKiompiete  Of  iileigible  entries  will 
tie  classified  as  check  logs,  A  copy  of  FD 
logs  should  be  kept  by  your  FD  group  but 
should  r^t  be  sent  in  unleiss  specifically 


requested  try  the  ARRL  Ngrmai  ARRL  dls^ 
qualifications  rules  apply. 

All  entries  atvd  requests  for  official 
fom?s  should  be  addressed  to:  AfIRL, 
Newlngton  CT  06111.  include  a  9"  by  12" 
self  ^addressed  envelope  with  3-oi,  post- 
age for  a  complete  Field^ay  entry 
package, 

CANADA  DAY  CONTEST 

Starts:  0000  GMT  July  1 

Ends:  2400  GMT  July  1 

Sponsored  by  the  Canadian  Amateur 
Radio  Federation  (CARF).  the  contest  Is 
open  to  all  amateurs  and  everybody  works 
everybody,  Entry  classes  include  single- 
operator,  all  bands;  singie-operatorr 
stngle  t>and:  ar^  mu it i -operator,  all  bartds. 
Tb^^  are  also  separate  singieKipefator 
ORP  (5-M  output}  classes  for  all  bands 
and  single  band. 

(Jse  ail  bands  from  160  to  2  meters  on 
CW  and  phone  combined.  All  contacts 
with  amateur  stations  are  valid.  Statiorts 
may  be  worked  twice  on  each  t>and,  once 
on  CW  and  once  on  phone.  I^o  crossmode 
contacts  and  no  CW  contacts  In  the 
phona  bands  are  allowed. 


EXCHANGE: 

Signal  report  and  consecutive  serial 
number  starting  with  001.  VEI  stations 
should  also  send  ttieir  provirvce  <NS,  NB. 
PEJ).  Do  not  use  a  separate  series  of  nurrv 
berson  eacli  bantL 

SCORtNO: 

Score  10  points  for  each  contact  with 
Canada.  1  point  for  contacts  with  others. 
VEI  counts  as  Canada.  Score  lO  points 
for  eacti  contact  wttn  any  QARF  official 
station  using  the  suffix  TO  A  or  VGA.  Multl^ 
pliers  are  the  numtier  of  Canadian  prov- 
Incea/territorles  worked  on  each  band  on 
each  mode  (12  provtnces/iefritories  x  2 
modes  for  a  maximum  of  t92  possible 
multipliers).  Contacts  with  stations  out- 
side Canada  count  for  points  but  not  mul- 
tipUera. 

fR£QU£HaES: 

leiO,  1S40.  3S25.  3770.  7025,  7070, 
14025.  14150.  21025.  2!250,  28026.  2B500. 
50.040,  50,110,  144.090,  146.62.  Suggest 
phone  on  the  even  hours  (GI^4T>,  CW  on  the 
odd  hours  {GMTl.  Since  this  is  a  Qanadiafi- 
spoftsofed  contest,  rememtjer  to  slay 
within  the  legal  frequencies  for  your 
country! 

AWARDS: 

Certificates  will  t>e  aw^ardad  to  the  high- 
est score  in  each  category  in  each  prov^ 
ince/territofy,  US  call  area,  and  DX  courv 
try.  ff  scorea  are  close,  second-  and  third- 
place  certificates  will  be  awarded.  Addi- 
tlor^lly.  several  trophies  wiU  be  awaided 
to  some  top  scorers  courtesy  of  sponsors, 

ENTRiES: 

A  valid  entry  must  contain  log  sheets, 
dupe  streets,  a  cover  sheet  showing  claimed 
QSOs,  OSO  points,  a  list  of  multipliers, 
and  a  calculation  of  firtal  ctajmed  score. 
Cover  sheets  and  mufti  pi  lef  checklists  are 
available.  Entries  should  be  ma  I  fed  within 
one  month  of  the  contest,  with  your  com- 
ments, to:  CARF,  PO  eoK  2172,  Stn  0, 
Ottawa,  Ontario^  K1P5W4  Canada. 

Results  will  be  pvt>iished  in  TCA,  (tie 
Canadian  amatetir  magazine.  Norvsuty 
scrjbers  may  include  an  SASE  for  a  copy 
Of  the  results. 


^ 


DX 


Chod  Harris  VP2ML 

Box  4831 

Santa  Rosa  CA  95402 

THE  NCDXF  20  METER 
BEACON  NETWORK 

Have  you  been  llstenlrvg  on  14100  as  I 
suggested  last  rrvonth?  it  not.  tune  youf  re- 
cejiver  to  thai  frequency  as  you  read  the 
column  this  lime. 

What  do  you  hear  under  all  that  Interfer- 
ence? A  strar^^  pattern  of  CW  signats 
and  lor^g  daafies  from  stations  ail  over  tr^e 
worfd.  This  Is  the  20^n>etef  t>eacon  net- 
work, constructed  by  the  Northern  Califor- 
nia DX  Foundation  {f^CDXF). 

TTiis  network  consists  of  efght  auto- 
mated beacons  scatt^ed  around  the 
globe.  Eacfi  beacon  transmits  on  a  strict 
lime  sequence  {see  Table  IJ. 

The  beacons  provide  current  Informa- 
Iton  on  1t)e  state  of  the  Ionosphere  and  on 
radio  propagatton  to  various  parts  of  the 


world,  all  In  less  than  ten  minutes!  Let's 
have  a  closer  look  at  this  network  to  see 
how  we  can  use  it  to  best  advantafle. 

The  Baacone 

Each  of  the  beacons  consists  of  a 
power  supply  and  controller,  a  Kenwood 
TS-ISD  transmitter,  ai>d  an  omn^dlrectiorv 
al  antenna.  The  controller  features  a 
quartz-clock  accuracy  of  one  part  in 
10.000,000,  a  microprocessor  to  generate 
the  beacon  CW  identification,  and  a  switch- 
ing network  to  reduce  tt>e  power  of  the 
transmitter  in  ID-dB  ste^. 


Till  a  power  reduction  Is  one  of  ttre  most 
fascinating  aspects  of  the  t>eacon  sys- 
tem. During  Ifie  58  seconds  that  each 
l^eac^n  transmits,  its  output  power  drops 
by  a  factor  of  10  every  ten  secofKls  fsee 
TabJe  2).  The  final  S-second-fong  dash, 
preceded  by  four  dHs,  is  sent  at  the  power 
level  of  only  0-1  Watte  t  And  yet  you  can 
hear  the  0.1 -Wat!  level  from  several  of  the 
beacons. 

A  Kenwood  TS-130  ir&nsceiver  and  a 
quad  antenna  comprise  thie  rest  of  the 
beacon.  The  Kenwood  transceivers  have 
held  up  very  well  under  the  continuous- 
duty  operation  of  tl^  beacons;  no  beacon 
has  ever  been  off  the  air  for  tfansceiver 
prol>lems.  The  antenna  is  a  turnstile  made 
of  Iwo  quad  loops  at  right  angles  to  each 
other.  This  antenna  produces  an  antenna 
pattern  practJcally  omnidirectional  In  the 
horrzontal  plane,  and  with  the  pattern  fa- 
vorinfi  ^ow-angle  radiation  in  ttie  vertical 


0000  4U1UN 

0001  wewxm 

0002  KH60/B 

0003  JAZtGYB 

0004  4)t6TU/e 
0CH»OH2e 
0006  CT3B 
OOOr  Z56DNm 

oooa-» 


United  Nations.  New  York  City 

Stanford  Univefsity,  Palo  Alto.  California 

Northeastern  Oahu  Island,  Hawaii 

Mi.  Asama.  Japan 

Tel  Aviv  University,  Israel 

Helstm^i  Technical  University,  f^nJand 

Madeira  Island,  Africa 

Transvaal,  South  Africa 

(silent) 

TMbimf. 


plane.  Each  side  of  the  quad  loops  is  IT' 
1 1 '  long. 

Each  tieacon  package,  including  anten- 
na, costs  about  Si 300.  The  Nortt)«fn  Cali- 
fornia OX  Foundation  is  picking  up  the  tab 
for  this  entire  pro|ect,  including  tf^  eight 
beacons  in  place,  and  future  tMSCons  (see 
below). 

Btfiind  tfte  Beacons 

The  network  fa  I  he  brainchild  of  Stan- 
ford Research  Institute  scientist  Dr.  Mike 
Vltlard  W6QYT,  who  has  had  a  long  time 
Interest  in  worldwide  radio  propagation. 
With  the  support  of  the  Northern  Gal  I  tor* 
nla  DX  Foundation  and  the  active  assis- 
tance of  several  San  Fraricisco  Bay  area 
amateurs,  thna  network  began  to  take 
shape  In  the  late  TOSp 

Dava  Lesson  W6QHS  took  some  time 
off  from  hrs  multimj J  [Ion-dollar  Silicon 
ViJiey  company  to  design  tt>e  ftecessary 
hardware.  His  contritiutlon  included  the 
overall  design  of  the  network  along  with 
the  details  of  the  switching  system  to 
change  the  power  level  of  the  trans  mi  tter< 
Jack  Curl  is  K6KU  designed  the  clock  and 
microprocessor  which  control  tt^e  switch^ 
Ing  circuitry  and  generate  tt^  code  Identii* 
fication.  Jack  has  had  considerable  ex* 
perience  In  this  field;  he's  the  Curtis  of  the 
Curtis  keyer  and  code-teacher  line!  And 
finally  Cam  Pierce  K6PU  assembled  much 


73  MBgailne  •  June,  1984    IT 


of  th«  Acm»r  hardware  and  fKepared  th« 
actuil  boacofi  packaQOS,  NCDKF  Pres^* 
dant  Jack  Trostor  WSISQ  provldad  (and  Ts 
continuing  to  provide)  overaM  coordina- 
tion and  Intemailonal  supervision  of  th« 
JWtworH, 

And  contmu^ng  on  duty  On  a  dalh^  bast  a 
l9  Al  LoUe  W6HQ,  who  c«ffdifH>te&  Ihi 
regular  obsorvQfS  of  the  beacons  and 
complies  I  he  raporta  (see  below}^ 

Amonfi  the  other  person^  vltat  to  (ha 
aucceas  of  the  beacon  network  are  the  in- 
dividual  &e3^>n  "cuatodians."  These  are 
the  hafFis  arvd  gro4jps^  carefully  selected 
by  ttie  NCDXF,  to  set  up  end  operate  the 
l>0aGons.  In  many  cases  the  beacona  are 
unde/  the  auapices  of  a  unlvefslty. 

The  beacons  netwoilt  grew  afowly;  the 
llTit  beacon,  WBGZNL  went  on  the  arr  at 
the  end  of  1979.  WB6ZNi  tias  changed 
callAlgns  a  couple  of  times  since  than  ami 
Is  now  WaWX/B  at  Stanford  University  In 
Palo  Alio,  CallFornta. 

That  tlrat  tseacon  required  mo^e  tttan 
hantwaia.  The  t»acon  transmit}  what  la 
technlcalty  an  unatlefided  AO  emlaakif^ 
whidh  la  not  permitted  under  Fedw^l 
Communications  Commission  ^FCC) 
amateur  rules.  So  the  foundation  had  to 
request  a  special  waiver  of  the  FOG  rules 
to  aJlow  ttie  beacon  to  tMgin  transmitting. 
The  aame  held  tnte  for  the  Hawaiian 
beacon,  KH60/6,  under  I  he  watchful  aye 
ol  Bob  Jonea  KH60,  Perry  Willlama 
W1UED  of  mo  American  Radio  Relay 
League's  Washington  DC  office  was  Irv 
stmn>ental  in  obtaining  the  necessary 
waivers. 

On  trie  other  hand,  the  other  beacon 
located  "wtthln^'  the  United  Slates  re^ 
quired  no  such  apectat  permlsston.  The 
4U1UN  beacon  sits  on  UN  territory  In  New 
YofK  City  and  thus  falls  untfef  the  rules 
of  the  tntematlonal  TeJecommunJcatton 
UMpn,  whictt  pem>its  the  beacon. 

The  situation  was.  a^en  mora  compflcat- 
ed  in  Japan.  Japanese  amateur  regular 
tlons  had  neither  rules  nor  standards 
about  beacons.  In  order  to  get  permission 
to  estatsjish  ttie  t)eaoon  ^n  Japan,  J  A  hams 
had  to  work  with  the  licensing  authority  to 
writQ  enUrgfy  new  wgufaTions  for  beacon 
standards. 

Perseverance  prevaHed,  however,  end 
by  early  1983,  ail  eight  beacons  were  on 
the  air.  The  beacons'  record  of  depend- 
ability has  been  very  good.  Some  of  the 
beacons  associated  with  ynhwrtitfea 
mil  St  occasionally  ^ut  down  to  avoid  dis- 
turbing deticafe  experiments.  But  there 
has  bean  little  u-r^scheduled  "downtime" 
or>  the  system.  The  only  recurring  pfdi&lem 
was  a  SingJe  resistor  in  Ihe  powef  supply, 
aince  replaced.  The  natwotk's  on-time 
IHOnl  Is  a  great  tribute  to  the  dos^pi, 
englrieering,  and  maintenance  of  the 
beacons. 

The  vefy  dependability  of  the  t>eaoons 
has  ted  1o  one  slight  problem:  ttie  docks 
of  the  tMacons  atowly  drift,  and  the  bea- 
cons start  to  ovoriap.  The  clocks  in  Ihe 
beacons  are  accurate  to  about  one  part  In 
ten  mElllon,  or  eix>ut  one  half  second  a 
month.  Since  Ihe  beacons  have  required 
no  nwlntenance  other  than  resetting  the 
docks,  ttieir  llmers  have  occasionally 
drtftad  enoo(^  to  omdm?.  So  If  you  want 
to  aat  your  watch  by  a  radio  signal  tune  to 
WWV  (sea  this  column,  April,  1@B4^. 

Ualiili  the  Beacons 

TtiaM  beeoona,  Ixvth  IndMduaIfy  and 
m  a  network,  provide  many  benefits  to  the 
DXer.  Besides  tt>e  obvious  use  ol  deter* 
mining  band  openings,  hams  can  use  Ihfs 
syatem  to  check  antennas,  compare  rigs, 
caiibrate  thetr  S-meters,  and  compute 
toivina  patterns.  Let's  look  at  some  of 
these  possibJIUIaa. 

Stnoe  the  tieeoorts  put  out  tf>e  same 


At  Loti^  W6RQ  coardffiams  the  beacon  reports  from  this  mod&st  station. 


power  day  after  day,  you  can  use  the 
beacon  network  to  monitor  the  condition 
of  youf  station.  By  loggEng  the  signal 
strengths  of  the  different  beacons  at  vari- 
ous times  of  the  day,  you  can  build  a  refer* 
ence  point  for  changes  in  your  station.  For 
eixampJe,  if  your  coaxial  cable  t>egins  to 
deteriorate,  you  might  notice  a  gradual 
reduction  In  the  signal  strengths  of  ths 
beacons.  Simifafly,  changes  in  switches, 
filters,  and  rigs  can  tie  compared  to  the 
refer ences  you  establish  tiy  consiatentty 
monitoring  these  beacons. 

Such  conatstent  rr>onftoring  Is  itrrpor* 
tant  if  you  went  to  siiminale  the  vagaries 
of  propagation  from  your  considerations. 
You  don't  want  to  rip  out  a  rww  antenna 
Just  because  you  tested  it  on  ttie  day  of  a 
sojar  flare! 

Vou  can  also  use  the  beacon  network  lo 
ctieck  Ihe  iow-arvgle  radiation  patterri  of 
your  antenna.  Since  most  of  the  tieacons 
are  a  goodly  distance  from  your  station, 
most  of  the  radiation  you  hear  from  them 
will  arrive  at  your  antenna  at  the  low  angle 
characteiistic  of  DX  communicatCona,  By 
swinglrvg  your  antenria  durlrnj  the  long, 
9-second  dash  of  each  beacon^  you  can 
note  rslative  signal  strengths  from  the 
front  and  the  back  ol  the  antenna.  You 
may  find  the  ratio  between  t}>e3e  figures 
quite  different  from  thai  advedlaed  by  the 
antenna  manufacturer  I 

C>f  even  greater  Interest  to  the  DXer  wtti 
be  the  angle  of  minimal  reception  on  the 
antenna.  Beam  or  directional  antennas  do 
Increase  the  signal  strength  in  a  given  di- 
rection, but  they  also  sefve  an  even  more 
valuable  service  by  reducing  the  signal 
stTBngth^  pf  stations  lying  In  other  direC- 
tions-  The  ability  to  "null  out'*  or  nullify  an 
imerf er I ng  station  is  at  least  as  important 
as  Ihe  increased  signal  strength  given  by 
ttie  dIrectEonal  antenrta. 

So  ttie  DXer  wants  to  know  where  to 
point  Ihe  tream  to  mfnfmiz^  reception  of 
the  offending  signal.  Knowing  where  the 
nulls  are  In  your  antenna  pattern  Is  as  im- 
portant as  knowEng  the  front -to-back  ratio. 

Another  immediate  benetii  of  the 
NCDXF  beacon  rvetwork  ie  Its  use  f^or 
S-mefer  callbfation.  The  power  lever  of 


Power  Level 

too  Watts 
too  Watts 
ID  Watts 
1  Watt 
0,1  Watt 
10C  Watts 


ftleaaaoa 

QST  d«  [callaHjn) 


eadi  beacon  decreases  by  a  factor  of  10, 
or  tiy  10  dS,  each  to  seconds.  You  can  cal- 
ibrate your  $-metef  t>y  careful ty  watching 
the  meter  during  these  power  changes. 
Your  meter  reading  should  drop  by  10  dB 
(a  little  less  than  2  S-unlts)  each  step  m 
power  reduction. 

tf  ycKif  receiver  doesnl  track  this  way, 
you  might  want  to  produce  a  calibration 
chart  to  reflect  the  actuai  power  levels. 

And,  of  course,  Ihe  beacons  teli  what  Is 
happen ir^  with  radio  propagation  right 
now.  How  many  txiacons  can  you  hear? 
How  strong  are  their  signals?  How  do 
these  signal  strervglhs  compare  to  other 
days  when  the  propagation  was  good,  me^ 
dium,  or  fair? 

Beacon  report  coordinator  Ai  Lot^e 
W6f^0  feels  that  lt»e  beacons  present  a 
tnore  accurate  picture  of  present  amateur- 
radio  propagation  than  do  the  WWV  btille- 
tins  or  the  forecasts  by  charts  or  tables  in 
the  amateur-radio  magazines.  "Those 
charts  don't  Include  the  A  Index''  (see  this 
column,  last  month),  "Their  Maximum 
Uaabte  Frequency  charts  only  rafted 
solar  flux.  But  I  have  found  the  A  inde^e  a 
more  telling  indicator  of  present  propaga- 
llon,"  A I  explains. 

How  can  the  DXers  best  use  thi$  propa< 
gallon  Information?  First,  lieacon  recap- 
tkma  might  suggest  good  possit>{litiea  for 
direct lonal  COa.  If  you  knttw  the  tiand  It 
open  from  your  tocetion  to  Eastern  Afhca 
(CT3)  you  might  try  a  CQ  directed  toward 
that  0mB.  DX  stations  are  much  more  iike^ 
1y  to  answer  a  dtrectlonai  or  specific  CQ 
than  a  more  general  "CO  DX. ' 

With  regular  lislenlng.  you  Can  team  a 
great  deal  about  radio  propagation  from 
your  station  to  other  parts  of  the  worlds 
When  ck>es  the  long  or  skew  path  open  up 
to  Curope^  or  to  Japan?  in  which  direction 
dOM  II  p&tkl  What  are  the  dlfferefices  in 
sigrial  strength  as  dawn  or  sunset 
pasaes?  Wfien  is  the  t>est  time  to  get  up  In 
the  middle  of  the  night  to  work  that  rare 
DXpeditlon? 

The  avid  student  of  radio  propagation 
can  use  the  tieacon  network  to  obtain 
even  more  information.  What  is  the  rela- 
tionship Cietween  ttie  WWV  flux  numbers 


|d-second  dash) 
.  {S-aecond  dash) 
_  (^-second  dash) 
^(9-secorid  dash) 


SK  (call  sign) 

TM  entire  esquene*  meaa  about  56  seconds^  at  about  20  words  per  minute. 

Tabf9  2.  8eac^n  transmission  pattam. 


and  propagation  from  your  location?  Do 
the  sJgnif  strengths  of  the  polar  and  the 
equator  I  el  paths  change  at  the  same  tlrne^ 
or  In  different  patterns?  The  possibilities 
are  endless. 

Making  Beacon  Reports 

If  you  are  serious  about  itttening  to  the 
bMCons,  you  might  want  to  share  your  ob- 
servations and  ideas  with  others  of  simi- 
lar p^reuas  Ion,  Beacon  report  coordinator 
Al  Lotze  W6R0  (see  photo)  collects  the  m- 
ports  from  regular  and  irregular  reportera 
from  all  over  the  world. 

As  of  last  winter,  Ai  had  received  more 
than  250  reports  from  every  continent.  The 
reports  have  ranged  from  a  simple,  ""I 
heard  your  beacon  yestarday/'  to  com- 
plex and  detailed  analyses  and  tlieort^  ol 
propagation.  The  most  dedicated  are  aev- 
eral  European  scientists.  At  least  one  Bel- 
gian amateur  sends  in  a  full  page  of  com- 
ments and  Ideas  every  month!  Other  regu- 
lar reporters  Inctude  er^gineers  and  short- 
wave iistenera  fSWLs).  The  list  of  report- 
ers shows  that  you  don't  need  fancy 
equiprT>ent  to  monitor  Ihe  beacon  net* 
works;  Al  has  received  a  report  from  a 
Czechoslovaklan  amateur  who  used  a  di- 
rect-conversion recalvefl 

Amateurs  ar^  others  fnterested  In  tie- 
coming  regular  n^onitors  and  reporters  for 
the  beacon  network  should  contact  Al 
Lotze  W6R0,  46  Cragmont  Ave.,  San  Fran- 
cisco CA  9411  &  1303.  Al  prefers  the  of- 
ficial reporting  form  but  will  acknowledge 
all  reports  with  a  beacon  network  QSt. 
You  don't  have  to  hear  all  eight  e»escona 
to  send  in  a  report,  but  you  should  listen 
to  the  network  several  times  at  different 
hours  and  note  any  patterns. 

The  informal  collection  o!  regular  tiea- 
con watchers  spends  more  time  listening 
than  tttey  do  transmitting  pike  any  good 
DXerl)  tKjt  ttiey  do  occasional  ty  key  up 
their  rigs  during  the  2-niinute  "break"  at 
the  end  of  each  sequence  of  tjuileiins.  if 
you  listen  closely  during  this  "off"  time, 
you  might  hear  a  beacon  observer  send 
"All  6  hrd  de  WSRO;*  or  a  similar  mea- 
SHOf^ 

Al  Lotie  WSF^  flaport  CoonNnator 

A I  Lotze  ia  an  excellent  man  for  the  Job 
of  coordinating  these  l^eacon  reports,  in 
his  53  years  as  an  amateur.  Al  (see  ptMMol 
has  amassed  282  countries  on  CW  His 
station  today  Is  as  efatiorate  as  any  he 
has  used  In  more  than  50  years,  but  you 
may  note  the  absence  of  such  Items  as  an 
antenna  switch,  antenna  rotor,  or  am- 
plifier. 

Al  runs  Kenwood  barefoot  through  a 
Johr^son  matcht>ox  to  a  QSRV  antenna  on 
the  roof  of  his  home,  high  on  a  hill  at>ove 
San  Francisco.  Al  cleims  his  DX  success 
comes  from  his  suffix.  "There  are  more 
stattona  with  the  suffix  RQ  In  the  DXCC 
listing  than  any  other  suffix,"  Ai  notes 
with  a  twfnkie  In  his  eye.  Despite  this  sim- 
ple station  setup.  Al  has  frequently  heard 
all  eight  t»eacons  in  one  cycle,  especiatCy 
around  local  aunsai  when  the  A  index  Is 
under  10. 

A  ior^iime  folloviw  ol  radio  propaga- 
tion, Ai  monitors  WWV  proptgadon  byite- 
t^ns  daliy^  Wiaather  permitting,  Al  also 
sets  up  his  telescope  every  day  to  chart 
the  size  and  position  of  each  sunapot.  I^is 
charts  appear  in  ORZ  DX  every  week, 

Al  mainlalns  lively  communications 
with  his  Far-flung  collection  ol  regular 
iMacon  reporters.  Wittv  a  working  co>ffK 
mand  of  P ranch,  Spanish,  and  German.  Al 
attempts  to  respond  to  most  reporters  in 
the  If  native  languages.  With  daily  charts 
of  the  sun*s  surface  for  years,  careful 
gmphing  of  the  WWV  propagation  infor* 
mation,  and  more  than  5Q  years  of  ama* 
teur  experief>ce,  Ai  holds  his  own  among 


96     73  Magazine  •  June,  1984 


he  prof  BtftlonAl  propAQailon  «xporta  with 
vtiom  ria  corresponds. 

teeuitt  oH  Beaoon  Network 

The  Informetlof)  fro«n  t\w  beacon 
«retchers  continues  to  pour  Into  AJ't 
'nallbox,  ao  it  will  be  years  before  any 
statbtlcaiiy  valid  reauits  come  from  this 
network,  &ut  Ar  has  noted  severaf  trends 
whkrlT  became  evident  vsry  quickly.  The 
first,  and  pertiaps  rnoat  interesting  pat* 
lern,  la  how  the  low-power  signals  can  be 
heard  ciesfly.  QRP  enthusiasts  have  been 
•aying  this  for  yesis:  y04J  don't  need 
power  to  make  DX  con t acta.  Uaten  for 
yourself  to  hear  how  often  you  can  hear 
the  0,1 -Watt  ievei  of  me  beacons.  Makes 
one  want  to  ban  afi  smpiif  iers. 

Another  interesting  conclusion  aug* 
gested  by  the  beacon  network  is  that  the 


traditional  explanation  of  how  radio 
waves  travel  more  than  2500  miles  ts 
wrong.  The  teid books  claim  that  sigr^a^s 
which  travel  farther  than  2500  miles  must 
bounce  back  end  forth  tietween  the 
Earth's  surlace  and  the  Ionosphere  sever- 
al limes:  multi-hop  piopagation.  However, 
much  of  the  signal  la  lost  In  each  bounce. 
The  mathematics  of  this  tt>eorv  suggesi 
that  the  0.1 -Watt  tieacon  wotjld  never  be 
heard  If  the  signal  were  to  propagate  via 
muUI-hop  propagation.  So  the  radio  signal 
must  get  from  there  to  here  in  some  other 
way.  We  may  never  krow  exactly  how  ttw 
signal  traveis^  but  wo  do  know  that  trw  tra- 
ditional multi-hop  theory  has  holes  In  it 

Al  has  also  noticed  that  the  A  Index 
seems  to  be  closely  related  to  t»eacon 
receptions.  The  only  times  lie  has  heard 


all  e^ght  beacons  at  the  same  time  has 
t)een  when  the  A  index  is  very  low,  10  or 
less.  I^e  notes  that  traditional  propaga- 
tion forscaatlng,  including  the  charts  and 
tables  In  the  amateur  press,  do  not  in- 
clude the  A  index  in  their  catcu^atlons. 
Thus  even  when  the  solar  i\un  might  be 
high  enoHjgh  for  good  radio,  the  high  A  irv 
dex  may  prevent  good  propagation. 

The  Future  of  the  Nehvofk 

What^s  ahead  for  the  NCDXF  2«HTieter- 
tMacon  network?  The  two  "off"  minutes 
certain ly  sugQest  ttiai  at  least  two  more 
tNQacons  wiJJ  t>e  forthcoming  soon.  in  the 
works  for  this  summer  is  a  beacon  on  the 
northern  coast  of  South  Am«riea»  In  Co- 
lombia. Another  pos3lt>tllty  for  a  tenth 
beacon  is  the  southern  end  of  the  South 
American  continent,  but  the  real  propaga- 


tion hounds  prefer  a  Westsm  Australia  lo- 
cation. VK6. 

The  beacon  network  doesn't  have  to 
stop  growing  at  ten.  Built  into  the  control 
circuitry  is  the  ability  to  switch  to  20  twa- 
cons  per  ten-minute  cycle.  One  can  Imag- 
ine a  few  years  from  now  bieing  ahie  to  gel 
eKSct  propagation  intormatipn  to  20  dif- 
ferent locations  around  tt>e  world  In  only 
10  minutest 

Thast  beacons  and  many  other  DX  ic- 
tiviUes,  Including  ma|or  DXpeditions.  are 
sponsored  by  the  Northern  CalitornJa  OK 
Foundation.  Memtiefship  In  the  NCDXF  Is 
$10.(X>  and  Includes  a  handsome  membker- 
ship  certificate.  Contact  hiCOXF  ai  PO 
Box  2368,  Stanford  GA  §4305. 

And  pJeas«,  for  thte  sake  of  ail  of  those 
hams  listening  to  the  beacons,  stay  oH 
14100  kH2l 


MAROS 


I 


Bttf  Gosney  KB7C 

MiCfo-80f  Inc. 

2665  North  Busby  Road 

OfiA  Harbor  WA  98277 

ELMER  OF  THE  YEAR 

F^  Wendetl  Tjetsworth  WZSUE  was 
Cfl01»n  as  OCWA'a  Korthem  New  JefSey 
Chaptsf's  1963  Elmer  of  the  Veer  from  a 
fiefd  of  nc^nlnees  by  a  committee  which  in* 
ctuded  such  pron^ner^t  local  amateurs  as 
JOttpH  Winter  W28HM,  head  of  the  W2 
oat  Bureau,  and  William  Mumford  W2CU. 

W2SUE  has  been  teaching  ham-radio 
courses  s^nce  1966.  He  currenhy  Isschfts 
r^iovlce  classes  at  the  Nut  ley  H4  Bed  Cross 
Building  and  is  active  In  Amvy  Mars  as 
AAJQJR 

SOUTH  EAST  QUEENSLAND 
TELETYPE  QROUP  AWARD 

TMs  award  iA  opvi  to  all  transmitting 
and  listening  amateurs  who  gain  award 
points  in  the  following  manner  Australian 
amateurs  must  score  5  fx?lnts  and  over* 
s«as  amateurs  mast  score  3  points. 

{a^To  qualify,  a  station  must,  where 
possible,  copy  the  official  station  ot  the 
South  East  Oueeniiiand  Teletype  Groupi, 
VK4TTY,  during  a  news  broadcast  snd,  in 
the  case  of  a  transmitting  amateur,  partic- 
ipate in  the  calittack  (2  award  pointsK  A 
portion  of  the  printoirt  of  ttie  news  txoad- 
cast  together  with  the  date,  time,  frequen- 
cVh  and  broadcast  numt>er  are  to  accom- 
pany the  request  lor  the  award, 

(b)  Add! ti orally,  a  transmittif>o  amateur 
m^jst  work  three  memtier  statioris  of  tt» 
SEQTG  on  RTTY  {1  point  each},  t-og  fix- 
trads  arxl/or  printouts  are  to  be  Included 
with  the  award  application,  and  each 
membei*  station  may  be  counted  only 
once  towards  the  award. 

{c)  Listening  amateurs  should*  in  lieu  of 
fjb).  forward  log  extracts  and/or  printouts 
of  three  contacts  involving  different  mem- 
ber stations  of  the  SEQTG  (1  point  each). 

Applicants  for  the  award  sfiould  for^ 
ward  the  abovo  information  together  with 
one  dollar  Australian  or  5  iFTCa,  to  cover 
postage  and  printing  costs^  to  the  Secre- 
tary, SEQTG.  PO  Box  274.  Sunnybank, 
Queensland  4109,  Ausiratia. 

WORKED  ALL  BERMUDA 

Th*  WAB  Award  is  issued  to  amateurs 
throughout  the  worid  by  the  f^dio  Society 


of  Bermuda.  To  qualify,  applicants  must 
subfiiit  proof  of  havtriig  wtKked  a  mlnl^mum 
of  nine  {%)  parishes  in  Bermuda:  Sandys, 
Southampton,  Warwick,  Paget,  Pern- 
broke,  Devonshire,  Smith's.  Hamitton,  and 
St.  Georges. 

The  award  la  an  antique  map  of  Ber- 
muda (20"  X  23")  suitably  inscribed  with 
the  recipient's  name  ar>d  celts  I  gn  and 
signed  by  His  Exceller^cv  the  Governor  of 
Bermuda. 

The  award  Is  not  aval  I  able  lo  stations 
whio  worthed  Bermuda  via  nrvot>4le  in- 
cluding maritime  or  aeronautical  No 
t>and  or  mode  endorsements  are  avail- 
able.  Only  orve  mobiJe  or  portable  from 
within  Bermuda  may  ba  used  In  mailing 
claimed  contacts  on  your  applications. 

QSL  cards  are  required  as  proof  of  con- 
tact and  tf>ey  must  tie  seni  to  the  awards 
manager  with  sufficient  postage  for  their 
safe  return.  The  Bermuda  Award  Is  issued 
free  of  chargel  Submit  your  applications 
to:  Award  Manager,  PO  Box  275,  Hamilton 
5,  Bermuda. 

WORKED  BROWARD 

COUNTY  crriEs 

Th«  Broward  Amateur  Radio  Club,  inc.. 
Sponsors  the  r>ew  WBCC  award,  available 
to  licensed  amateurs  who  submit  prool  of 
two-way  contact  as  foHows: 

(a)  Residents  of  Broward,  Colllerg, 
Dade,  GJades,  Hendry.  Lee,  Martin, 
Monroe,  or  Palm  Beach  counties  must 
work  all  29  of  the  cities  listed  below. 

(b>Aii  other  amateurs  must  work  15  of 
tt>e  29  clll^  within  Broward  eounty. 

To  be  valid,  all  contacts  must  be  verl^ 
fled  by  at  leaat  two  fellow  amateurs  and 
application  must  show  all  logbook  lnJr>r- 
mation  as  well  as  ihe  OTH  of  ttm  station 
worKed. 

To  apply,  mail  your  appi  I  cation  with 
$1,00  (US  funds}  and  two  first-crass 
stam|>s  (DX  stations  send  10  IRCs)  to: 
BARC  Award  Manager.  W04RAF.  1921 
NW  41st  Street,  Oakland  Park  FL  33300. 

Qualifying  city  contacts  Include:  Coco- 
nut Gre«k.  Cooiper  City,  Coral  Sidings, 
Dan  I  a,  Da  vie,  Deerfield  Beach,  Fort  Lau- 
derdale. Hacienda  Village,  Ha  I  lands  la, 
Hiiistxjro  Bdat:h,  Hollywood.  L^uderda^e- 
tiy-the-Sea,  Laudefdaie  Lakes,  LaudefhIII. 
Lazy  Lake,  Light  house  Point,  Margate, 
Miramar,  Morth  l^uderdale.  Oakland 
Park,  Parkland.  PemtKOke  Park,  Pembroke 
Pines,  Plantation,  Pomps  no  Beach,  Sea 


Ranch    Lakes,    SunrlsSt    TamaraCt    and 
Wilton  Manors. 

WORKED  ALL  ASIAN  AWARD 

The  WAAA  program  requires  the  appli- 
cant to  work  other  amateurs  in  the  mem- 
ber countries  of  the  Association  of  Souths 
east  Asian  Nations.  Work  5  Philippine 
contacts,  1  Malaysian  contact.  2  Indone- 
sian contacts,  1  in  Thailand,  and  1  station 
In  Singapore,  Special  endorsements  will 
b&  Qivon  tor  All -Phone,  All-CW,  Single- 
Band,  and  Five- Band  contacts. 

Have  your  ilst  of  contacts  verified  by  at 
least  two  radiCHClub  officials  and  t»e  sure 
all  contacts  were  made  after  January  1, 
1070.  to  be  valid.  Forward  appropriate  log- 
book information  In  your  application 
along  with  S4.D0  (US  funds  onty,  no  IRCsJ 
to  the  Award  Manager  Edwin  Zambrano 
0U1EF2,  PO  Box  AC-166,  Quezon  City 
3001,  Philippines. 

WORKED  ALL  DU  AWARD 

This  award  is  available  to  alt  licensed 
amateurs  who  can  show  proof  of  having 
contacted  at  least  one  station  from  each 
of  the  call  areas  in  itie  RefHjbiic  of  the 
Ptiiiippines  (DU1  to  DU9,  except  DUS). 

Contacts  may  b&  made  on  any  band  or 
rrxxje  and  special  endorsements  will  t>e 
issued  upon  requ^t  for  AlhPiione.  All- 
CW,  Single-Band,  ot  Five-Band  accom- 
plishments. 

Contacts  for  the  OU  Award  must  be 
made  on  or  after  January  1 ,  1070.  To  apply, 
forward  a  list  of  contacts  which  have  been 
verified  by  two  officers  of  a  radio  organi- 
sation. Your  application  must  show  9>lt 
logbook  information  for  each  contact. 
Send  the  list  and  S4.O0  (US  funds  only— no 
iRCs,  please!)  to;  Edwin  Zambrano 
DU1EFZ.  PO  B03(  AC- 166,  Quezon  Cily 
3001.  Philippines. 

VK1  ACHIEVEMENT  AWARD 

The  A.C.T.  Division  of  the  Wireless  in- 
stitute of  Australia  Is  proud  to  announce 
the  creation  of  its  newest  award,  the  VK1 
Achievement  Award.  Tills  award  has  the 
aim  of  Increasing  interest  In  the  VKi  pre- 
fix and  in  promoting  Canberrs  and  Austra- 
lia International  I  y. 

As  there  are  only  300  VKl  licensees,  the 
award  will  rwt  be  sn  easy  one  to  achieve, 
particularly  on  some  tiands  and  modes. 
The  VKl  Award  is  aval  I  able  to  licensed 
amateurs  throughout  the  world.  To  quaH- 
ty,  stations  within  Australia  must  work  20 
stations  In  VKl  land  on  HF  and  on  VHF. 
Stations  outside  Australia  must  work  a 
minimum  of  10  VKl  stations  for  the  HF 
segment  of  the  award. 

To  apply,  submit  your  fist  of  contacts, 
Ifwltiding  the  GMT  time  and  date  worked. 


the  tMfid  ftnd  mod«  of  operation.  ar>d  any 
rafSOfts  or  cipher?^  est  changed.  To  t>e  valid, 
all  contacts  must  be  made  on  or  after  Jan- 
uary 1, 1970.  Endorsements  may  be  given 
at  the  time  application  is  made.  Five  IRCs 
or  S2.0Q  in  Australian  currency  cover  the 
cost  of  the  award  and  should  be  sent  to 
the  Award  Manager  c/o  WIA,  PO  Bov  46, 
Canben-a  A.C.T  2600,  Australia. 

By  the  way,  the  VKl  Award  is  also  made 
avaiiable  to  shortwave  listening  stations 
on  a  heard  basis.  QSL  confirmation  is  re- 
quired. 

WORKED  ALL  FORGOTTONIA 

Announcing  the  awards  program  sporv 
Sored  by  LEARC,  the  t^molne  Emergency 
Amateur  Radio  Club  Of  MacomI)',  Illinois. 
The  Worked  Forgottonia  Award  is  Issued 
to  amateurs  who  conlirm  contact  with 
three  0)  licensed  amateurs  o1  Forgot^ 
tonia-  The  Worked  All  Forgottonia  Award 
Is  issued  to  operators  confirming  contact 
wfth  at  ieast  one  amateur  In  each  of  the 
sixteen  counties  of  Forgottonia. 

What  is  Forgottonia?  It  is  ihe  51st 
statef  It  consists  of  the  following  couri' 
ties  (formerly  west  central  Illinois): 
Adams,  Brown,  Calhoun,  Cass.  Fulton, 
Greene,  Hancock,  Henderson,  KnoK,  Me- 
Oonough,  Mercer,  Morgan,  Pike,  Schuyler. 
Scott,  and  Warren. 

Ail  contacts  rnust  be  made  after  Junft 
28, 1980,  to  be  valid  From  the  letter  we  re- 
celved  from  the  club,  the  award  evidently 
Is  issued  at  no  charge  since  no  remittance 
was  mentioned.  Forward  your  list  of  verh 
fled  contacts  and  a  9"  x  12"  SASE  to  the 
attention  of  AG9Y.  do  LEARC,  1224  Maple 
Avenue.  Macomt>  IL  61455. 

WAT  AWARD 

The  Cabin  Fever  Radio  Giilb  of  Tok, 
AtasKa,  offers  a  certificate  for  contacting 
tlirae  amateurs  in  ToK.  There  are  no  band 
or  mode  restrictions.  However,  at{  corv 
tacts  must  be  made  after  Oocemtier  15, 
1980,  to  be  considered  valid. 

To  apply,  prepare  a  list  ot  contacts  Tn 
order  by  caiisign.  Include  the  name  of  the 
station  ofMratof,  the  date  and  time  worked 
in  GMT,  and  the  mode  and  band  ot  opefa- 
tlon.  QSLs  not  required.  Amateurs  located 
in  Tok  Include  AL70.  AL7BO.  AL7BV,  and 
WL7APG. 

Send  your  applleation  with  $200  or  10 
IRCs  to:  Cabin  Fever  Radio  Club.  Box  451, 
Tok  AK  09760. 

BASEBALL  SPECIAL 

The  t.ew!sCiark  ARC  will  Ojperate 
W7VJD  Friday,  June  l.  from  oaOOZ  until 
the  last  game  has  been  played,  Saturday, 
June  2.  from  tOOOZ  until  last  game  played, 
and  Sundsy,  June  3,  from  leOQZ  until  last 

73  Magazine  •  June,  19S4    99 


Qams  ptay«(l,  duHng  t^  NAIA  Wortd's 
CollBgtate  Baa^ball  Tournament,  on  |h0 
campus  of  Lewis-Clartt  Stale  College. 

Fr«qu«fYC]«s:  14^70,  7.235t  3.940  ± 
QRM  phone;  14.130,  7,125  t  QRM  QW. 

Please  send  BASE  for  QSL  via  Dan  Wefb 
ttrom  WB7t.0V.  630  Stewart,  Lawlatofl  ID 
03501. 


EIGHTH  STREET  FESTIVAL 

The  Madison  County  Amateur  Radio 
Clyt>  w\n  operate  the  ctub  station,  W9VCF, 
portable  from  the  historic  flghth  Street 
Featlval  In  Anderaon,  Indiana,  on  June  6 
and  9, 1984.  A  special  cert  I  Hcate  will  beol- 
tered  to  pafsona  contacting  the  club  sta- 
Won  [luring  [he  festival  or  any  club  m-enrv 
ber  dyrtfig  th«  monlh  of  June.  Su-Qg^sted 
of}efa1ing  frequandaa  are;  23.7SS,  21  400, 
T4.340,  7.290,  and  3.990  MHz. 

Sen^d  log  Information  and  a  dollar  dona^ 
tlon  to:  Madison  County  ARC.  c/o  Frank 
M.  Dick  WA9JWU  921  Isabeile  Drive,  An- 
dVBon  IM  4«013. 


SPECIAL^EVENTS 
STATION  TSKflAC 

The  Swedish  Tetacofnmuntcations  Ad* 
ministration  haa  given  permission  to  the 
Swedish  Radio  Amateur  Radio  Club  lo 
uee  the  speciat-events  prefix  7SK  in  OKv 
nectlon  with  opefations  from  tim  club  sta- 
tlon.  SKftAC.  during  the  annual  confer- 
ence of  the  European  DX  Council  m  Stocks 
holm,  June  $-10,  1964.  The  EDXC  is  the 
umbrella  organization  of  the  shortwave 
radio  listening  clubs  in  Europe.  The  an- 
nual conference  has  become  the  meeting 
friaca  in  Europe  for  Intefnatlonal  broad* 
caalefs  who  are  actively  involved  in  pio- 


gramming  or  the  technical  stde  of  interna- 
lionat  radio  arKJ  ttie  representatives  of 
tlie  tiatenera'  clubs,  which  can  now  boast 
iriore  Ifian  thirty  Ifwusand  members. 

The  I9d4  coirlererK^  is  being  hsotMt  try 
Radio  Sweden  I ntef national  and  the 
Swedish  DX  Federation  at  the  atudioa  of 
RSI  in  Stockholm.  7SK9AC  will  be  on  the 
air  during  the  conference,  ope^atad  by 
members  of  the  club  and  licensed  ama:^ 
teura  among  the  conference  participants. 
Among  those  who  are  expected  to  operate 
from  (he  station  are  Victor  GoonetiUeke 
4S7VK,  Colin  Richards  9M2FJO,  Urs 
Rooth  HV3SJ.  Woff  Harranth  OEIWHC, 
and  Bernt  Erf  ford  LA5TBA. 

7SKa  AC  IS  expected  to  go  on  the  air  at 
about  1500  hours  GMT  on  Friday,  June  S, 
19&4.  Operation  will  continue  at  various 
limes  during  the  conference  on  Seturday, 
June  9,  and  Sur^iay.  June  10.  Frequencies 
to  be  used  during  daylight  hours  are  14060 
kHz  tCV^  14^0  kHz  (S3B),  21060  kHz 
(CW),  and  213^  kHz  {SSS);  and  during 
hour)  of  darkrva$3,  3550  kH^  (CW}  arvd 
3700  kHz  (SSB1- 

The^e  will  also  be  some  ^seration  on 
the  £-met0f  band. 


MECA 

The  Macomb  Emergency  Commynlca- 
tlorm  Associatkvi  will  i^ave  its  second  spe- 
del  event  on  the  weekertd  of  June  &-i0.  O^ 
oration  will  coTTwnence  at  2200Z  Friday,  June 
B,  and  continue  around  the  clock  to  Z20DZ 
Sunday,  June  10,  near  the  lower  &nA  o4  the 
GenenlK^ass  portion  of  each  amatiur  band 
a^  propagation  dictates.  Modes  of  operatior^ 
will  be  SSe  and  CWffmY  on  HF  and  FM 
phone  on  14ajD7/.S7.  OSL  to  MEGA,  Box  488. 
mica  Ml  48087  with  a  9'  x  IZ'SASetorcer- 
tifkate,  DX  stations  need  send  only  QSL 


BROOKFIEtD  ZOO 

The  Chicago  Suburban  Radio  Assocla- 
lion  w^ti  operate  apecial-event  radio  sta- 
tion N9BAT  from  the  Brookiieid  Zoc  \n 
celebration  of  its  5Qth  anrtlversary.  It  Is 
one  of  the  largest  zoos  in  the  United 
States  and  was  the  first  America ri  zoo  to 
exhibit  anin^ia  in  naturalistic  displays 
behind  moats  instead  of  in  cages^  Its 
Tropic  World  la  Iha  largest  ZOO  buitding  In 
11^  world,  houalng  African,  Asian,  and 
South  American  rain  forests. 

Operation  wlii  be  June  9  and  10  froni 
16002-24002.  using  the  phone  trectUBiV 
dea  of  7.250  arKJ  14.250  MHz.  A  special 
full'OOi^  ZGO  OSL  card  will  be  avallabte  to 
ail  slattons  that  reply  with  their  OSL  card 
and  a  #10  {business-size)  SA5E  to:  f49BAT 
Special  Event,  PO  Box  383,  Brookfield  IL 
60513. 

KNOX  COUNTY  ARC 

The  Knox  County  Amateur  Radio  Club 
will  have  a  special -event  station  on  the  a  if 
lo  commemorate  GaieSburg  Raittoad 
Days.  Railroad  Days  Is  an  annua t  event  (or 
Saieaburg,  Illinois,  which  pays  tribute  to 
tile  role  of  the  BufKngton  Northern  (for- 
merly the  CB  &  Q)  and  the  Sontt  Fe  RaJI- 
roads  \n  ttve  development  of  the  area. 

The  KGARC  will  have  its  speclal^event 
station  on  the  air  on  Saturday  and  Sun- 
day, June  d  and  10,  1964.  from  ISOOZ  til 
22O0Z.  The  station  will  operate  on  one  of 
the  foifowing  frequenciee:  7.235.  14,280. 
2U75,  and  28.830  MKz.  plus  or  minus 
QRM  and  depend ir^  on  band  corvditmna. 
The  can  of  the  station  will  be  W9GFD.  A 
special  COrrirr^amorative  OSL  card  w^H  be 
Sent  to  arty  Station  contacted  which 
sends  an  SASE  to  the  Knox  County  ARC, 
inc.,  W90FD,  1694  Bluebird  Drive,  Gales- 
burg  IL  81401 


HELEN  KELLER  DAYS 

The  Muscie  Shoals  ARC  will  operato 
W4JN8  from  1600-21002  On  June  29  and 
30  and  Juty  1, 1964,  from  StKing  Par^t,  Tua- 
cumbitu  Alabama*  in  ca4ebration  of  Helen 
Keilar  F^ttval  Pays.  Phone  frequenclas 
are  7270-7290  and  14,280-14.295.  For  an 
8"  K  10"  ceniflcate,  send  an  SASE  (4"  x 
10"  envelope}  to  Box  27 45,  Muscle  Shoaift 
AL  3S682.  Talk-In  on  two  meters, 
t46-0l/.61. 


TOM  SAWYER  DAYS 

The  Hannibai  Amateur  Radio  Club,  tnc, 
will  issue  a  fourth  annual  special  certlfi^ 
cate  from  tha  Nationaf  Tom  Sawyer  Days 
ceiebretion  in  Mark  Twain's  boyhood 
home  town,  Hannibal,  Missouri,  on  Satur* 
da^H  June  30  and  Sunday,  July  1^  1984. 
Hours:  1500-2100  UTC  Ijoth  days.  Pre* 
quonctar  phone  7^245,  14^90,  21.400. 
m770:  and  CW  7,125  arKJ  21,125  MHz. 
Help  us  celebrate! 

To  receive  tfw  certificate,  send  a  lifga 
(B  X  10}  SASE  and  your  persona  I  QSL  card 
confirming  ^he  contact  to  Hannibal  Ama- 
teur Radio  Club,  Inc .  WaKEM,  2108  Or- 
chard Avenue.  Hannlbai  MO  S3461. 

For  further  information,  cait  Tony 
McUmber,  2108  Orchard  Avenue,  Han- 
nibal MO  63401;  {314)-S2l^t9!S 

ANNIE  OAKLEY  DAYS 

W8UM0,  the  Treaty  City  ARA.  will  oper^ 
ate  the  Annie  OaKlay  special-event  station 
from  1400Z  July  28  lo  020OZ  July  29.  and 
14002  to  2200Z  July  29.  Frequencies  will 
be  3§10  kHz,  7235  kHz,  arwl  t42&5  kHz. 
Send  9*'  X  12"  SASE  for  unfolded  certifi- 
cate; otherwise  send  iiO  SASE  to  TCARA, 
PQ  Boot  91.  Greenville  OH  4S331 . 


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i^5«tf  Li&t  Of  Aavetu&ets,  on  page  n4 


73  Magazine  *  June,  1964     101 


LETTERS 


YES,  IT  WAS 


Was  that  th«  sam«  Ishmod  Kadyk,  the 
It  exploref ,  who  found  th«  extension  of 
lakt  Michigan  into  Montana? 


OH  YES  HE  WAS 


lahnood  may  not  hav^  ba«n  a  fool,  bul  1 
read  up  10  f>^  224  before  I  roali^ed  ht  was 
ApniJ 


Harry  Chur^  WtKXP 
Lsbation  IL 


ISHMOD  FOOLED  AGAIN 

Tho  article  on  Ishmod's  Journal  (73, 
April,  1^4)  is  onfl  of  the  finest  exposes  on 
the  potential  perils  of  the  OCpedltlon  ever 
wrillen,  Reading  l(  posLttvely  started  my 
IIMit  poynding  with  tfie  desire  to  QO  rent 
an  old  Argofitine  alrcratt  carrlef^  hire  a 
crew  or  Lascars  and  Dacolts,  and  get  out 
among  'em.  There  Is,  howe^rer,  a  problem 
with  the  map  you  printed  end  the  geograr- 
phy  of  the  DXpedition  in  genei el.  Some  of 
my  Irregular  friends  will  claim  (hat  the 
map  you  prifited  was  originally  made  near 
Agra  by  Jonathan  Small,  Abdullah  Khan, 
Mahomet  Sing,  and  Dost  Akbar.  In  the  late 
1870a.  pthiars  will  attribute  the  map  to  ^ 
otrtaln  ^e^going  Bellmen  ot  the  same 
period,  citing  Ihese  lines  {see  boK}. 

Unfortunaiely,  the  map  is  a  red  herring. 
Ih^  title  location  of  the  istanO  ^shmod  and 
hit  friends  found  is,  I  am  afraid,  more 
iilnlster  The  island  whe^e  Is^hmod  and  hi» 
friends  landed  can  tie  none  other  than  the 
dread  Rlyah  whict)  rises  occasionally 
ffOfn  the  da/k  waters  of  the  South  Pacific 
and  Indian  Oceans.  This  [aland  was  first 
documented  in  English  by  K  P.  Lovecratt, 
In  1&2@.  It  also  is  mentioned  by  the  15th 
century  Arab  scholar,  Abdut  Alhazred  In 
his  Necfonomfoof}.  (Copies  of  the 
N9Ctonomicon  can  be  found  in  the 
Widener  Library  a1  Harvard  and  \n  the 
library  ciypt  at  MIskatonic  Unlvmfsity  In 
ArKham,  Massachusetts.}  As  lurther 
evidence,  note  the  pa  ratios  between  the 
log  of  the  Brig  Bmm»  cited  by  U>vecraft 
ar>d  Ishmod's  last  printed  words.  Ishmod 
speaks  of  phenorr>ene  which  defied  the 
laws  of  physics,  in  the  Ernma  log.  we  heaf 
Johansen  speak  of  geometry  which  was 
"abnormat,  non-£uclidaan,  and  loath- 
somely redolent  of  spheres  and  dimen^ 
sions  apart  from  ours"  The  partially  com- 
piete  reference  to  the  rocks  of  the  island 
also  correlates  with  the  Lovecraft  ac^ 
count  of  unbellevabEe  greenish  stone 
blocks  at  f?iyeh. 

From  the  above  discussion,  i  th\nk  ft 
clear  that  tahmod  and  his  frier»ds  have 
fallen  pK^ey  to  Clhulhu  or  some  ether  of  the 
star-bom  Old  Ones.  Only  the  olher  day  on 
one  Qf  the  Pacific  DX  nets  I  heard  at  about 
35  wpm  the  horrid  refrain.  "Ph'ngjul 
mglw'nafh  Cthulhu  RHyeh  wgah'nagi 
fhtagn,"  I  tear  for  my  fellow  hams  on  other 
Pacific  artd  Indian  Ocean  DX  pad  it  Ions. 
They  should  take  great  care. 

Hanry  P.  Dovrst  KASKHJ 
Paolf  jc  Pallsadsa  CA 

102     73  Magazine  •  June^  1984 


THANKS,  73 


Just  a  short  note  to  thank  you  lor  73.  I 
have  been  a  ham  lor  only  arm  year  afMl 
have  lound  73  to  be  excellent  reading  with 
enough  "beginner"  proiscts  to  keep  my  in- 
terest high  and  my  curiosity  aroused 

I  am  fKiJ  very  adept  at  the  technlical  as- 
pects of  mmafeur  radio  yet,  but  the  proj- 
ects In  7$  are  educating  me  and  encour- 
aging me  to  learn  by  doing. 

Also,  I  mink  your  editorials  are  terrific^ 
It's  beefi  «  long  lime  since  I've  Sn Joyed 
reading  someone's  philosophy  who  has 
the  courage  to  tell  people  the  real  facts  of 
lite;  that  Is,  "if  you  want  something,  go 
aftaf  it  arul  earn  Itl"  Thanks  tor  reaffirm- 
ing rrty  tsetief  in  the  spirit  that  ortce  made 
thla  country  great.  I  hope  more  people 
begin  to  reapply  this  attitude. 

Keep  up  the  good  work! 

Gary  Mills  KS4ENQ 
Mlddlesbofo  KY 


WET  BATTERIES 


Reference  is  made  to  your  article,  "Wet 
Battery  Quiz." 

First  of  ail,  smartass  that  t  am.  Til  admit 
I  flunked  the  quiz.  And  I  thought  I  knew  it 
all.  Mice  the  subtitle  said. 

Mhink  I  can  cleaf  up  your  author's  com- 
prehension on  a  couple  of  related  points^ 
He  asks,  "How  couFd  the  corK:rete  floor 
gst  through  the  acid- impervious  case?'* 
The  time4H>nored  advice  to  ivol  so  store  a 
lead/acid  battery  is  correct.  Such  slorage 
frequently  Impiiae  storage  In  an  un heated 
garage  or  outbuilding.  At  night  the  iofn- 
perature  of  the  battery  and  floor  both 
drop.  In  the  momlngi,  with  the  battery  in  in- 
timate contact  with  the  floor  as  a  heat 
sink,  warm  moist  air  will  cause  condensa- 
tion on  the  esiterlof  case. 

He  Is  correct  in  stating  that  the  acid 
path  across  the  top  of  ttie  battery  will 
cause  leakage. 

He  asks,  ''How  come  the  acid  Inside  the 
case  does  not  cause  current  leakage?" 
Fair  quest ior^  Here  Is  my  answer:  First  of 
all,  Ihink  of  a  2-volt  cell  as  two  "half-cells'' 
with  Ihe  gross  part  of  the  acid  t>etween 
them  as  a  conductor  and  the  acid  In  in- 
timate  contact  with  each  cathode  or 
anode  as  highly  ionized  arvd  a  component 
of  the  ha [f -eel I.  With  this  concept  II  can  be 
realized  that  an  acid  path  across  eitternal 
terminals  of  greater  potential  than  2  volts 
will  ir>deed  cause  a  current  to  !low.  And  to 
make  the  case  crystal  dear  to  anyone  still 
doubting,  the  highly-Ionized  Interface  be- 


tween the  conducting  acid  and  the  termi- 
nal "plates"  out  as  a  different  colored 
chemical  depending  on  the  terminal  po^ 
Larlty^  White  negative,  and  green  poslttvei 
1  hope  this  cieafs  up  his  understanding; 
It  has  mine*  Thanks  for  a  great  article.  I  am 
an  Old  Car  Nut,  and  between  winter 
storage  arKJ  summer  heat  and  overcfiarg- 
Ing  of  these  animals,  what  I  have  learned 
will  be  put  to  good  uee  Immediately. 

William  T.  Tyrrel  W2YKQ 

East  NofthpOft  NY 


SUPPORT  YOUR  NET 

This  is  tlM  first  letter  that  I  have  written 
to  you  for  publishing  and  I  suppose  that 
not  all  amateurs  will  agree,  bul  1  do  know 
that  Ihe  message  needs  to  be  O'Otten 
across,  I  suppose  that  the  be^i  title  for 
this  would  tie  'An  Open  Letter  to  All  Ama- 
teurs." I  am  nol  the  best  at  spelling  nor  am 
I  convinced  that  this  will  even  t>a  pub- 
lished, but  i  thought  that  I  would  at  least 
make  an  att^npt. 

I  have  t>een  a  ham  for  afound  a  years 
now  and,  like  many  hams,  spend  very  little 
time  on  the  air  An  incident  happened  to 
me,  though,  that  Inspired  me  to  write  this 
letter.  I  had  a  OSO  with  a  Mextr:ar»  ama 
teur  station,  and  tjy  colncider>ce  he  had  a 
very  good  friend  In  a  smalt  town  in  Tennas*' 
see  whom  he  had  not  been  able  to  con- 
tact. Having  checked  Into  the  Tennessee 
Net  several  times,  I  knew  that  I  had  a 
chance  tg  contact  his  friend,  so  1  offered 
to  pass  a  message  and  see  If  I  could  ar- 
range to  get  the  two  together  on  a  15-  or 
2f>metef  frequency.  My  Mexican  amateur 
was  vefy  excited  about  this,  although  he 
didn't  understand  the  net  type  of  opera- 
tion Of  Its  purpose;  On  March  Sth,  19S4.  it 
Just  so  happened  that  there  was  ar>otl^ef 
ham  in  that  small  community  in  T^i- 
nessee  who  also  was  on  the  same  phone 
exchange.  Not  onjy  was  I  able  to  get  the 
message  across  to  my  Mexican's  friendi 
but  also  he  was  going  to  meet  him  on  the 
aJf  at  tfte  same  time  that  I  had  aRarvged  a 
schedule  with  him  Ihe  following  Saturday. 

The  moral  of  this  story  Is,  pfease,  no 
mattsf  how  large  a  community  you  belong 
to,  support  yotri'  /oca/  $fare  rtef !  I  had  no 
Idea  that  there  was  even  anottiei  ham  in 
that  community;  other  than  the  one  I 
needed  to  contact,  but  there  was,  and 
b^ecause  he  devoted  thirty  minutes  of  his 
time  to  be  on  the  net,  f  was  able  to  get  two 
good  friends  togettter  and  back  on  track. 
Whether  it  Is  across  the  state,  country,  or 
world,  the  nets  serve  a  very  important  pur- 
pose but  are  useless  unless  they  ttave  Ihe 
support  of  the  hams  In  the  state  and  com- 
munittes  and  counties  of  the  state.  It  may 
be  that  you  may  never  be  called  upon  for 
traffic  to  your  area,  but  what  a  blessing  It 
is  when  you  need  an  area  ar^  you  can  im- 
mediataiy  get  that  area  arMJ  pass  the  mes- 
sage. 

t  have  heafd  many  negative  comments 


H«  had  brou^l  ■  large  mip  represerftTng  Ihe  sea. 

Without  the  Itast  vestige  o1  land: 

And  the  crew  were  much  pleased  when  thay  lourkd  IHo  be 

A  map  they  could  alt  uiKlerstand. 

"What's  tbe  good  of  Mercs  tor's  Horlh  f>oles  and  Eifuators. 

Tropics,  Zof^es,  and  Meridian  Unes?" 

So  the  Bellman  would  cry:  arKJ  the  crew  would  reply 

They  are  rrverely  conventional  signs!" 

"Other  maps  are  such  shapes  wHh  their  Islanda  and  capos! 

But  weNfe  gat  our  brave  Captain  to  itiank" 

(So  the  Cfow  would  protest!  "that  he  brought  ut  the  beat— 

A  perfect  and  absolute  blank  I" 

From  'A  Nttyticai  SaZ/ed, "  C^rfes  Carryt,  t84f-1920. 


a!x>ut  the  nets,  how  trivial  they  are,  and 
that  they  serve  no  purpose,  but  believe 
me,  one  such  use  as  I  tiad  and  the  net 
takes  on  a  whole  new  meaning.  I  hate  to 
hear  the  negative  comments  on  how  bad 
nets  are  conducted,  tt  may  be  thai  a  cer- 
tain net  control  Is  ba<l  or  a  certain  net  is  in> 
ixmalMenl,  bul  as  amateurs  we  all  owe  it 
to  ourseWes  to  make  an  effoft  to  learn 
proper  net  procedures— both  CW  and 
SSB.  Some  time,  devote  one  night  of  the 
week  to  your  state's  net  ar>d  get  to  know 
tfie  net  controls  and  the  purpose  of  Ihe 
nets,  the  time  they  meet,  and  mosi  of  all 
how  you  can  contribute,  I  would  iiKe  per* 
sonaiiy  to  charge  all  amateurs  to  help  pro- 
mote tlve  best  puNic  service  that  we,  as 
amateurs,  can  provide,  and  get  /nvo/ved.  If 
you  don't  because  of  the  lack  of  net  pro- 
cedures, write  the  editors  of  this  put^lica- 
tion  or  any  ARRL  official  and  I  know  that 
they  will  be  glad  to  assist  you.  The  mes- 
sage needs  to  get  out,  arKl  an  amateur's 
time  cannot  be  put  to  better  use  than  try- 
ing to  help  his  feliow  amateurs  and  the 
public  by  net  participation. 

Gary  8,  Kendrlcfc  KW4Z 
Chattanooga  TN 


TWO-METHR  BEACON 

The  Lincoln  Communications  Society, 
Lincoln,  Nebraska,  has  constructed  a  bea- 
con trarMmitiei  to  provide  a  signal  for 
propagation  Studies  and  ffet^uency  refer- 
ence^  The  beacon  current  iy  operates  Al 
(CW)  on  144.055  MHz  with  an  output  pow- 
er of  10  Watts  to  an  omnidirectional  an- 
tenna. The  beacon  location  ts  in  Ihe  north- 
east corner  o*  gtid  square  EN-IO-  The  10 
call  sign  is  WBlftQiV/B.  Reception  reports 
should  be  sent  to  me  at  the  Lincoln  Com- 
munications  Society. 

Charles  Connor  K«NG 
Secretary 

1B01  So.  4eth  SI. 
Lincoln  NE  a85a« 


FAR  OUT,  FAROUT  ARC  I 

On  SeptemlMr  17,  1983, 1  worked  Ruth- 
ann  WDOSMK,  wTkj  was  operating  special- 
event  station  WBB5MC  In  eel  at  rat  ion  of 
the  10th  Anniversary  of  the  Fa  rout  Ama* 
teur  Radio  Club  located  in  Dayton,  Ohio. 

We  exchanged  ttie  QSLs  and  on  March 
3, 1984, 1  received  a  beautiful  personalized 
piac^ue  as  a  token  of  the  club's  thanks  iot 
being  a  part  of  their  celebration.  Three 
QSLs  had  been  drawn  at  random,  arnl  I 
was  lucky  to  be  one  of  them, 

I  would  like  to  publicly  thank  the  Farout 
Amateur  Radio  Club  very  much.  A  club 
like  this  that  takes  that  e^tra  step  has  to 
go  farU  May  ih&f  have  100  more  aniuvef- 
saries! 

nfchard  C.  Schoti  KA2PHQ 
Spancef|iorl  NY 


[ 


DX  WORLD 


Recently  a  program  I  wrote  appeared  In 
73  [FetiruarY,  13S4).  "Put  the  DX  World  On 
the  SCfeen.''  I  would  like  to  thank  all  the 
many  people  thai  wrote  ma  with  their 
commentSt  suggestions^  end  their  orders. 
The  real  pay  in  doing  a  project  like  this  is 
the  thanks  that  I  receive  from  all  my  fellow 
liama;  Lord  krwws  the  n^oney  Isn't  worth  IL 
I  hope  that  all  the  people  who  received  my 
program  were  pleased  with  what  they 
received. 

As  many  people  already  know,  I  did  a  re- 
write of  ttte  Prefijt  Locator  program  tor  the 


CommodoTfl  64. 1  ad<l«d  many  iBalures  to 
tt  that  yt:)u  will  not  flna  in  tha  VIC  version. 
Lei  me  Mat  softt^  of  th«  addtd  f6«ture&. 


•  A  more  expanded  data  lltt^  Including 
dtJee  and  all  the  states  In  the  US  of  A. 

•  Two  clocks,  one  locftf  &n4  ofm  GMT, 


*User~aelactabte    Bcreerip    border,    and 
print  coloffl, 

•  An  MUF  forec«9f  in  local  time  and  GMT 
timet 

•  Printer  output  routines. 

•  A  nnachEno^anouaot  dsla-s«arch  rou- 
tine. Now  data  seaiiches  lake  three  (o  five 


«ecorvd9  Instead  of  three  to  four  minutee. 
•  And,  recently  added,  is  a  sunrise  and 
sunset  calculation  routine. 

This  version  is  availably  from  me  or 
from  RAK  Electronics.  The  C64  version  is 
available  on  tape  or  dlslc  A  C64  version  of 
om  form  or  inother  has  been  availabie 


since  November,  1383.  The  C64  ifsrslon 
has  been  updated  several  times  and  some 
older  versions  don't  have  all  the  features 
mwtioned  above. 

Eugenn  Mc^rgan  WB7RL)( 

tail  Cn?«»  St. 

Ogdeii^S4404 


-BAND  SLOPERS 


160,  60,  40.  30,  di  20  METERS 

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SDK  393-S      MT  PROSPECT  \l  S0CS6 


SeNO  SASE 


r^S'  Fox  Tango 

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Your  rig  —  old  or  new  —  is 
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Fox  Tango  Fillers  contain  eighl 
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INFORMATION 

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set.  You'll  get  the  complete  informa- 
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them  with  Fox  Tango  Filler-Cascad- 
ing kits.  If  you  phone  you  can  order 
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Deafer  inquiries  invited. 


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2708  1024x1 
2716  2048x8 

$2.00  each 

FAIRCHILD 

4116  16K  DYNAMIC  RAMS  200ns.  Part  f 

i6K7S 

$4.00  each 

25  For  $25 

.00 

or  100  For 

$90.00  or 

1000  For  $750,00 

27L32/25L32 

$10.00  each 

HEWLETT  PACKARD  MICROWAVE 

DIODES 

1H5711 

(5082-2800) 

Schottky 

Barrier  Diodes 

$1.00  ur  10 

for  5  8.50 

IN  57 12 

(5082-2S10) 

It 

ti      1* 

51,50  or  10 

for  510,00 

iN62e3 

(HSCH-lOOl) 

If 

It         r* 

5  .75  or  10 

fox  $  5.00 

5082-2835 

ti 

II         II 

$1.50  or  10 

for  510.00 

5082-2805 

Quad  Hatched 

II 

pel 

■  set  55.00  or  10 

for  540.00 

For  Information  calf:  (602)  242-3037 


TcMt  Fr«e  Number 
800^528-0180 
(For  orders  onty) 

PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


(fH*^l|^  electrof|ie§ 


"All  pans  may  be  new  or 
surplus,  and  parts,  may  ba 
substiiuied  w^m  co/Ttparatita  parts 
41  wa  are  oui  of  slock  ot  ar^  itaiTL" 


104  73  Magazine  •  June,  1984 


1 


"MIXERS" 


WATKINS  JOHNSON  WJ-H6  Double  Balanced  Mixer 

LO  and  RF  0.2  to  300MHz 
Conversion  Loss  (SSB) 

Noise  Figure  (SSB) 

Conversion  Compression 


IF  DC  to  300MHz 
6.5dB  Max.  1  to  50MHz 
8.5dB  Max.  .2  to  300MHz 
same  as  above 
8.5dB  Max.  50  to  300MHz 
.3dB  Typ. 


$21.00 


WITH  DATA  SHEET 


NEC  (NIPPON  ELECTRIC  CO.  LTD.  NE57835/2SC2150  Microwave  Transistor 


NF  Min  F=2GH2 
F=3GHz 
F=4GHz 


dB  2.4  Typ. 
dB  3.4  Typ. 
dB  4.3  Typ. 


MAG  F=2GHz 

dB  12  Typ. 

F=3GHz 

dB  9  Typ. 

F=4GHz 

dB  6.5  Typ 

$5.30 


Ft  Gain  Bandwidth  Product  at  Vce=8v,  Ic=10ma.   GHz  4  Min.  6  Typ. 
Vcbo    25v    Vceo    Uv    Vebo    3v    Ic   SOma,  Pt.     250niw 


JNELCO  FIF  Power  anc  ._.inear  Amplifier  Capacitors 

^  Power  and  Linear 

These  are  the  fauous  capacitors  used  by  all  the  EI 

Aiitplifier 

manufacturers,  and  described  in  the  RF  Data  Book. 

5pf                lOpf              18pf          30pf 

43pf 

lOOpf 

200pf 

1   to   lOpcs.    $1.00  ea 

S.lpf            12pf              22pf          32pf 

51pf 

llOpf 

220pf 

11   to    50pcs.    $    .90   ea 

6.8pf           13pf             25pf          33pf 

60pf 

120pf 

470pf  51  up        pes  .    ?    .  80   ea 

7pf                Upf              27pf          34pf 

SOpf 

130pf 

500pf 

8.2pf            15pf              27.5pf      40pf 

82pf 

140pf 

lOOOpf 

NIPPON  ELECTRIC  COMPANY  TUNNEL  DIODES 

MODEL  1S2199 

1S2200       ^^-^^ 

Peak  Pt,   Current  ma.                      Ip 

9inin.   lOTyp.   Umax. 

9min.    lOTyp*   Umax* 

Valley  Pt.   Current  ma»                  Iv 

1.2Typ. 

I.Smax. 

K2Typ,   I.Smax. 

Peak  Pt.   Voltage  mv,                      Vp 

95Typ. 

120fnax. 

75Typ.   90max, 

Projected  Peak  Pt,   Voltage  mv.  Vpp  Vf=I 

p      480min. 

550Typ. 

630max. 

440min,   520Typ,   eOOmax, 

Series  Res.  Ohms                             rS 

2.5Typ. 

4max. 

2Typ.   3inax. 

Terminal   Cap.   pf,                           Ct 

1.7Typ. 

2max. 

5Typ»  8max, 

Valley  Pt,   Voltage  mv.                  VV 

370Typ. 

350Typ* 

FAIRCHILD  /  DUMONT  Oscilloscope  Probes 

Model   4290B 

Input  Impedance  10  meg.,  Input  Capacity  6.5  to  12pf.,  Division  Ratio  (Volts/Div  Factor) 

10:1,  Cable  Length  4Ft,  ,  Frequency  Range  Over  lOGMHz. 

These  Probes  will  work  on  all  Tektronix,  Hewlett  Packard,  and  other  Oscilloscopes. 

PRICE   $45.00 


MOTOROLA  RF  DATA  BOOK 

Listsall  Motorola  RF  Transistors  /  RF  Power  Amplifiers,  Varactor  Diodes  and  much  much 
more. 


PRICE   $7.50 


For  information  call:  (602)  242-3037 


Toll  Free  Number 
800-528-01 80 
(For  orders  only) 


JM^^^z  electroi|ics 


**AII  parts  may  be  new  oi 
Surplus,  and  parts  may  be 
substituted  with  comparable  pads 
if  w6  are  out  of  stock  of  an  IttifTL" 


PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


73  Magazine  •  June,  1984     105 


RF  TRANSISTORS,  MICROWAVE  DIODES 


rVFE 


PRICE 


TfPS: 


PftlCE 


TYPE 


PRICE 


■nfFE 


PRICE 


20561 

$  ^.00 

WnS62 

25.00 

2mmi 

25.00 

^12967 

1.55 

2J^2e57J^WIX 

4.10 

2N2S57JANT?CV 

4.10 

2N2876 

13.50 

2tGd47 

16.35 

2K2948 

13-00 

216949 

15.50 

2K337S 

17.10 

3H3553 

l.M 

3N3a33 

15.50 

2N3733 

11.00 

2N3818 

5,00 

2N3aeB 

1.30 

2N336BJM 

2.20 

2HaB24 

3.:s 

2N39S7 

17.25 

2K38G0 

25.00 

2N4012 

11,00 

ZN4041 

14.00 

2JMQ72 

1.80 

2M06D 

4.53 

2ttll27 

21.00 

2N4427 

1,30 

2N4428 

1.66 

2Hi430 

11.80 

214967 

3.45 

2JM959 

2.30 

2N5090 

13.80 

2NS108 

3.45 

2Zi&ll» 

1.70 

2H510Q 

3.4& 

aei77 

21,62 

36179 

1.04 

2H521JS 

56,00 

2N8Sa3 

3.45 

2N5aa9 

9.77 

2N5^Q 

10.82 

2N5501 

13.80 

2N5637 

15,50 

2Z6641 

12.^ 

aeaa 

14.03 

2N5643 

15.50 

2N564S 

i3.ao 

^^646 

20,70 

2^5631 

11.03 

2N56ai 

18.00 

2NS764 

27.00 

2I«&^6 

3,45 

2£842/llfliXl7 

8.45 

2ffi649 

20.00 

2N5813 

3.2S 

2N5916 

3B.0O 

2N3922 

10,00 

2N5923 

25.00 

2N5ia41 

23.00 

2^6^2 

40.00 

2;©&44 

10*35 

2^5645 

U.50 

14.40 

2^46080 

10.35 

2N6081 

12.07 

2NB0e2 

12.65 

2N60e3 

13.^ 

316084 

15.00 

wBom 

U.OO 

2NB08& 

12,00 

2r»oe6 

16,10 

2NS097 

20.70 

2N61C^ 

21.00 

2NBl3e 

21,  S5 

2113166 

40.24 

S«2D1 

50.00 

36304 

1.50 

aeise 

18.00 

2IQS67 

10.06 

2Ne6ao 

80.00 

23C?t)3 

3,00 

23C756A 

7.50 

2SC7S1 

2.80 

23C101B 

1.00 

»no42 

12.00 

2SC107O 

2,50 

29C1239 

2.50 

29a251 

12.00 

2SC1306 

3.90 

2SC1307 

5.30 

2Sa424 

2. BO 

SSClfiTS                   $ 

2.00 

HllS-l                      $ 

16.90 

ieci«2i-3 

£125,00 

29C1729 

20.00 

16579 

7.95 

ieaaai-iD 

225,00 

2yL1760 

1,30 

m^es 

7,50 

mci3mk 

40.00 

2SC19CB 

4.00 

yn6'M 

7.95 

Msrz>?„vio 

200.00 

asriMs 

3fi.00 

M9623 

9.05 

MSC3000 

50.00 

2SC1946A 

40.00 

Mg624 

11.95 

MSr3001 

50,00 

2SC1970 

2.50 

M967n5 

17.95 

UaC73001 

50.00 

2*0074 

4.00 

16630 

18.00 

IQC820O1 

40.00 

?Hy.im 

5.50 

1B740 

29,90 

IGCB2014 

40.00 

2SC2237 

32.00 

1^741 

29.90 

IftULiiU^ 

40,00 

47.00 

leJftA 

19,50 

H908203n 

40,00 

il50-12 

25,00 

16648 

37,00 

H3C83JJ01 

50.00 

A209 

10.00 

M9850 

16.90 

M9C83006 

100.  a* 

A283 

5»00 

1©651 

20.00 

m'4150 

14.40 

A:^R3R 

6.00 

M9887 

5.25 

msi26 

POR 

AFioa 

2,50 

MELSOOSl 

25.00 

m5596/2^f5596 

99.00 

AfT12 

2.50 

IH1&50 

10.00 

in57^/2M5768 

95.00 

aP2r2A 

2.50 

III15S2 

50.00 

wmmz 

PCB 

Mtym 

2,50 

iHisas 

50.00 

NEQ2136 

2.50 

BFR90 

1.00 

IH1614 

10.00 

1^13783 

POR 

Iillf9l 

i.as 

III1&I3/S44072 

1.80 

MI1^1889 

HH 

Hi-Tt99 

2.50 

il!2608 

5.00 

NE57835 

5.70 

Bm2 

2.50 

ldM.3375A 

17.10 

NE73430 

2.30 

BPTVIBA 

2,50 

Um'123 

10.00 

'lUff 

Bf1ffl7 

2.50 

lilSOOO 

1,15 

PffrfflT37 

wm 

Bni92 

1.50 

iinnnn 

2.30 

praiyo 

nu 

ER644 

2.50 

MfiOll 

25.00 

f019I 

POR 

BF%^S 

2,50 

WF102 

.45 

fl'JlQS 

POR 

WWB 

2.50 

ICSU31 

1.01 

Pr3537 

7.80 

BtKM 

2.50 

ISU2023-1.5 

42.50 

WTAimE 

pce 

WKK'f 

2.50 

mFM}B 

16.10 

PT4l7fT0 

PGR 

^PiFXSa 

2.50 

10^*212 

16.10 

PT4186B 

POH 

BR£88 

1.00 

lfflF223 

13,25 

Pr4209 

PUR 

BFYll 

2.50 

1BF224 

15.50 

Pr42GeC/5645 

vm 

BFi'lfl 

2.50 

IBF231 

10.32 

Pm556 

24.60 

BJY19 

2.50 

ICff232 

12.  U7 

msTO 

7.50 

Btrje 

2.50 

inF233 

12.^ 

pra577 

PGR 

unryo 

1.00 

11^237 

S.15 

Fi'4390 

Ri* 

BLX87 

15.24 

11RF23B 

13.80 

PT4612 

PCR 

BLSB8C3 

15.24 

MRF239 

17.25 

PT462a 

PCR 

HTXP3C3 

22.21 

MPTZAb 

35,65 

F14640 

HJK 

n],¥A7A 

a.M 

m£F247 

:w.65 

Pr4643 

PGR 

IOB8C3 

13.08 

MHt^JO* 

43.45 

wi^em 

4.70 

02940 

21.30 

mFJOQ 

33.81 

Plb749 

KJU 

RliYSil 

10.00 

mF314 

28.52 

ITI*529 

mm 

BLY568C/CF 

30.00 

1iKF315 

28.86 

PTSTOa 

PCR 

0158-617 

25,00 

MRF316 

POR 

P1B720 

RH 

C400S 

20.00 

HUf^l? 

63.94 

l^l^'ilO 

PGR 

ayiSBB 

20.00 

MFrF420 

20.00 

ir'iy524 

pan 

CS21S8 

18.00 

IIHt'421 

36.80 

PTfKiOf? 

PGR 

UJ2&15 

25.00 

lffiF422A 

41.40 

I>T8633 

vm 

CIC300S 

100.00 

ieir427 

17.25 

PTB63S 

PGR 

Dntcel  CoAs  WET 

■aiiL        ■QB^m 

yRF428 

46.00 

Pt86S0 

RH 

tBCLSDOIA-PlODF 

49.30 

KRF433 

12.07 

PI8679 

FOR 

Fujitsu  GaAe  JET 

UI1K'14^/A 

12.65 

PTBTOe 

POR 

fSX52WF 

5B.00 

WRF450/A 

14.37 

^l^7(J9 

PCR 

CUOSdOA 

2.50 

lffiF45a/A 

18.40 

nhfAl 

29.00 

Ubl^e 

4,95 

1fiF454/A 

20.12 

Vri^fJl 

RM 

HEPff^m^ 

U.40 

IH1--455/A 

16.00 

PrB742 

19.10 

HEPSa003 

30.00 

lffiFi5a 

20.70 

pra7B7 

K» 

HE3^3005 

10.00 

WP463 

25.00 

Fiy/«3 

16.50 

UEFS3005 

10.90 

lffiF472 

1.00 

Ply784 

:^.7o 

IS3^S3007 

25.00 

lffiF475 

3.10 

P1S790 

5fi.O0 

iffpsaolo 

11.34 

MRF476 

2.00 

PT31902 

P(JK 

Hafflett  Packard 

WRf477 

14.95 

Pr31963 

PCR 

HFEn2204 

112.00 

lffiF492 

23,00 

FTJioea 

PUR 

.-15R21E 

38.00 

lefsoa 

1.04 

PTsmm 

POR 

3Sfi26B 

33.00 

WhbOli 

€.00 

BC^ 

35826E 

33.00 

inF504 

7.00 

40061 

5,00 

35831E-1I31 

30,00 

HRF509 

5,00 

40UV9 

10.00 

35831E 

30.00 

Ul^bll 

10.69 

40280 

4.62 

35S32E 

50.00 

AIRb^l5 

2.00 

40281 

10.00 

35B33E 

50.00 

MRF517 

3,00 

40282 

20.00 

35aS3E 

71.50 

mTftm 

2.05 

40?^ 

2,80 

:^854E 

75,00 

IKtlMJS 

20.00 

40292 

13.06 

35666E 

44.00 

mFBlB 

25.00 

40294 

2.  SO 

KXTB3101 

7.00 

my^mi 

S.^ 

40341 

21.00 

leOTQlOS 

8.75 

wgggg 

3,45 

40606 

2.48 

H3Cnt5104 

30,00 

WPB44 

27.60 

40694 

1.00 

H}aTei04 

68.00 

lffi!=B46 

29,90 

40977 

10.00 

HJm«105 

31.00 

MJU^ie 

15.00 

fiKSOOA 

60.00 

HKTBfilOS 

33,00 

URFB23 

20.00 

RE3754 

25.00 

J310 

*70 

Jfff901  (3)  bsad 

1.00 

RF:wad 

25.00 

Tim 

ieF901  (4)  lemd 

2.00 

I&IIO 

25.00 

.M«noo 

10.00 

mFsm 

2,30 

S50-12 

25.00 

JUiOOl 

25.00 

ISPBII 

3.0O 

S3U06 

5.00 

JD4045 

25.00 

H^'^l 

2.30 

S3031 

5.00 

Motorola  Cciiin. 

HHtHOOl 

2.10 

SCA3522 

5.00 

iai31 

8,50 

MS261J' 

POR 

SCA3523 

5.00 

M1132 

11. 9S 

mjim-i2 

225.00 

PRICE  ON  RHCJlflsr  ^  R3B 

Toll  Free  Number 

800-528-0180 

(For  orders  only) 


"All  i^arts  fniy  b4  new  or 
•ufpliis,  and  pans  may  be 
lubsiitut&d  with  cxHnperabto  parti 
n  wt  are  out  af  stocfc  of  *n  Mtfit" 


For  information  eall:  (602)  242-3037 


PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 

(fH^^^  elect roi|ic§ 


106     T^Magazfne  •  June,  1984 


GaAs,  TUNNEL  DIODES,  ETC. 


' 


•  fl  F  TKAJSISnitS  * 


Tt9E 

SD345 

^1004 
mi(X» 
3iVX0-2 

a>ioi2 

SD1012-5 

SD1013-3 

SD1013-7 

SD1014 

SI1D14-6 

SDlOiB-H 

StH018-6 
SDlOlH-7 

a}iot3 

3J1043-1 

SD1053 
^1065 

a>i06a 

aM074-2 

aao74"4 

SDlOfTB 

3D1077-4 

331077-6 

a>107B-6 

S)1060-3 

aaoeo-9 

SDIOM 
SDloe? 

SD1095 
SDllOO 

a)ni5-2 

Sill  15-3 

smifi 

SDlllB 


$  5,00 

5.00 

15.00 

15.00 

15.00 

9.90 

9.  SO 
13.50 
13.30 
11.00 
ILOO 
15^00 
15.00 
15.00 
15.00 
15.00 
15,00 
10.00 
15.00 
12.00 
12,00 

la  00 

3.73 

2.00 

4.00 

4.75 

15,00 

IS,  00 

28*00 

28.00 

20.00 

4.00 

4.00 

^^00 

6.00 

3.00 

d.oo 

IS.OO 

15.00 

15.00 

5.00 

1S,00 

3,00 

8.00 

£.50 

5.00 

22.00 


TTffig 

PftlC^ 

•nire 

SD1H0 

ig  5.00 

801278-5 

SD1124 

50.00 

SD12S1-2 

SD1127 

3,50 

SD12S3 

9311:33 

14.00 

SD12a9-l 

SD1133-1 

14.00 

801290^ 

SPtl34-l 

3.00 

SD1290-7 

SD113S 

a. 00 

^^300 

SD1136 

15.00 

aD130l-7 

SD113&-2 

15.00 

8D1306 

SD1143-1 

12.00 

801307 

331143-3 

17.00 

SDX30g 

33U44^1 

3.00 

SDX3U 

H>1146 

15,00 

351317 

^1147 

15.00 

971335 

smsi 

10. 00 

SDI345^ 

smm 

24.00 

S^136S-I 

SD1200 

1.50 

SD13e5-5 

SD1201-2 

10.00 

301375 

SD12Q2 

10. 00 

fiD1375p^ 

3)1212-11 

COO 

9^379 

Sni212-12 

4.00 

SD13a>-l 

ail2l2-l€ 

4.00 

an3ao-3 

ail2l4-7 

5,00 

^1380-7 

S>1214-U 

5,00 

Sn405 

S31216 

12,00 

SD1409 

SD121@^ 

15.00 

gD1410 

SD1219-5 

15.00 

SD1410-3 

^1219-8 

15.00 

SD1413.1 

SPUffl) 

B.OO 

£D141€ 

snsao-^ 

8.00 

an422-2 

00323-6 

16^00 

^11428 

S01232-11 

7.50 

SD1429-2 

SD1224-10 

18.00 

301429-3 

SD1225 

18.00 

aD1429-5 

SD122S^ 

POR 

SD1430 

331229-7 

13.00 

a>1430-2 

a]rl229-l£ 

13.00 

3J1434-5 

3n2^ 

4,00 

a;l434-9 

311240-8 

15.00 

S}1438 

SD1244-1 

14,00 

sn44i 

SD1262 

12.00 

SD1442 

SD1263 

15.00 

SD1444 

St>a263-l 

15.00 

801444-8 

^1273 

13.00 

SD14S0-1 

311272^2 

15.00 

aXL45l 

SI1273-4 

15,00 

S)145l-a 

an278 

20.00 

an452 

Sm278-1 

IS, 00 

3)1452-2 

Sie.oo 

8.00 
10.00 
15.00 
15.00 

L5.no 

3.00 

3,00 

3.00 

3.00 

3.00 

1,00 

10,00 

3.00 

5.00 

2.50 

2,50 

7,50 

7,50 

15,00 

1.00 

1,00 

1,00 

40.00 

18.00 

22,00 

31,00 

18,  OD 

50.00 

24,00 

33,00 

15.00 

15.00 

15,00 

12,00 

18,00 

30.00 

30.00 

26,00 

91.00 

15.00 

6.00 

6.00 

2S.00 

18,00 

18,00 

20.00 

20.00 


TfYre 


^1^53-1 

$48,00 

aD1454-l 

4H,00 

^1477 

48,00 

S>147e 

21,00 

aDl4B0 

60.00 

3(^484 

1,50 

0)1484-5 

1.50 

3)1484-6 

1,50 

SD1484-7 

1,50 

SD14&8 

39.00 

SaDl4Sli'l 

28,00 

3)1488-7 

27,00 

SDM^-8 

38.00 

9)1490-1 

39,00 

an52o-2 

18,00 

3)1522-1 

33,00 

3)1528-1 

24.00 

8D1528-3 

34,00 

SD1530-2 

3.00 

S)1536-1 

41,00 

3)1545 

34.00 

3)1561 

79.00 

SF4557  Itot, 

25.00 

SIC3048  mA 

5.00 

Siai77  RCA 

15.00 

SWS7714  Mot, 

2.50 

5fiF750  hfc>t. 

36.00 

SRFIOIB  Itot. 

."1,00 

3iF2147  tfct. 

22.00 

StFZ356  fcbt. 

38.00 

Sff2378  Itol. 

16.00 

^F2S84  Hot. 

40.00 

SIiF2S21  Hot. 

^.00 

gfiF2857  Mot. 

20.00 

TASS34  RCIA 

15.00 

TlS189/*«89e8 

3.55 

TP312 

2.50 

1P1014  WM 

5.00 

TPicee  iror 

15.00 

01-80703TO4/ 

468-^9  fot.Cbrrm 

.  65.00 

TCVT2201  H.P. 

450.00 

82803  RCA 

100.00 

TA7205/2K5921 

BO.  00 

TA748?/2N5eeO 

75,00 

xh7ae6/aM2G7 

150.00 

JiiKAJUS  Ifat. 

18,00 

WF479 

8,05 

flb  Can  Ciroes  R^ferxsnue  Stost  RF  Trunststors,  Diodes,  ftyhrid  Modules  And  Any  Other  Type  Of  Senicocidijctor. 

*  DiaiES  (HOT  CJUiRIER.MigjyAVE,PJN,3ajgniCif,TllKM£LA'AR^^  * 


•«**«««• 


1K21 

$  3.40 

imm 

4.00 

1I011E 

5,80 

11038 

3.40 

Ue31K 

4.00 

U42S«fE 

10.00 

tirm 

26.00 

1N7BB 

26.00 

1K149 

6.00 

1244150 

15.00 

15B31 

10.00 

l>e930 

15.00 

1N3713 

18.00 

IN3717 

14.00 

IM3747 

21,00 

IMBim 

9.00 

1M5142A/B 

4.2S 

1N5146A/B 

4.25 

lf&l53 

3.75 

116713 

5.00 

1S220O 

15.00 

A2X116M  Aertf?ch 

50.00 

fiUgl    BCfTBC 

5.00 

IH233B  Alpha 

e^:b 

t60*7C  Alpte 

FCfi 

Ii:£6l58-98  AlpiK 

PCR 

0Cl691-a&  Q££ 

31.35 

aC2542-46  GlS 

37.40 

lffS082-0112 

14.20 

HP50e2-0375 

PQH 

HHi08;i-iaa8 

PCR 

8P50e2-2303 

5.20 

w^oez-2Stjo 

1.00 

iP5oe2-3oao 

e.w 

lF50e2-3379 

1.50 

}ff>5O82-8O10 

PCR 

MA475 

PUR 

IWIIT^ 

PUR 

UA43636 

PCR 

MA47100 

3.05 

UA478^ 

FOR 

1N£1B 

»  3.40 

UGlOt 

S  3.40 

UGIC 

%  3.40 

lieilR 

4.00 

UBIER 

6,00 

UiSlEF 

5.00 

IKllG 

5.80 

IIGZ2 

5.00 

UC3A 

10.00 

mz3C 

3.40 

uescR 

3.40 

1JG3D 

4.0S 

vmm 

5.00 

1N25 

7.50 

lfQ5AK 

18.00 

Uffi9 

10.00 

1N32 

20.00 

IN53A 

^.50 

113768 

28.00 

1N78 

36.00 

1K78A 

20.00 

1N78D 

28.00 

mmxi 

28,00 

lN7flR 

28.00 

imddft 

18.00 

1D415 

4.00 

1M15C 

4.00 

iMiao 

s.m 

11M1££ 

6.00 

3N446 

10.00 

1HS33 

10,00 

1N9S0 

4,00 

uoo&t 

2,00 

1!!^ 

15.00 

L%:3540 

15.00 

110712 

u.oo 

1K3714 

u.oo 

1W3715 

16,00 

IM3716 

10,00 

1N3718 

10.00 

UOTSl 

14,  QO 

11^733 

10,00 

iM3ae 

20.00 

1M396 

15.00 

1W47S5 

11,00 

liei39A/B 

4.25 

11^140A/B 

4.^ 

ll©14U/8 

4.25 

llfil43A/B 

4.25 

lf6144A/B 

4,25 

]iei45A/B 

4,25 

lfl5l47A/B 

4.25 

1-^148A/B 

4,2S 

U^167 

5,50 

l!&i65 

7,6& 

1115711 

1,00 

i;fi711  JAN 

2.00 

li^TGT 

2.00 

iiea63 

1.00 

182198 

15,00 

1S2208/9 

i.OO 

aei087/48B869558 

65,00 

S03020 

65.00 

BB105B 

1.00 

BB105G 

1.00 

BD4/4JFIID4  G.S, 

15.00 

CMD&14AB  CM. 

PCft 

D4060  Alpha 

POR 

D4150  AlpJia 

POR 

D490a  Alpha 

PCR 

M959  Alpha 

POR 

I>l9e7M  Alpha. 

POR 

D5147D  Alja 

fCR 

C5503  Alpiia 

POR 

EG506  Alpha 

KR 

lMsaCS2  Alpbk 

tai 

I1D6460A  AliriiN. 

PCK 

ti'20054  C^tMH 

PGR 

GC16Q2-89  mi 

31.35 

Qcmm-aomi 

31.35 

0C2531-88aE 

37.40 

0C3e08-40  Qsa 

37.40 

0C17D44  CSZ 

50,00 

aP336-MA-Ffn 

125.00 

HPSOft2-0!£4l 

75.00 

HP50a2"0253 

105.00 

HP50e2-O32O 

58,00 

KP50a2-03a6 

POP 

HP50B2-^KOX 

PCR 

HP5082-O138 

FOR 

BP5082-1332 

POR 

HP50a2-2254 

POR 

HP5082-2302 

10.70 

1^5082-2696 

FOR 

HP5082-2711 

23,15 

HI>5082-2727 

PGR 

Iff5082-2a05 

4.45 

EEi5082-2S:£ 

1,00 

HP5082-2884 

PCR 

015082-3040 

36.00 

IP50B2-30S0 

2.00 

0^082-3188 

1,00 

12^082-6456 

POR 

m^as2-&iisz 

POR 

POR 

1^^5082-8323 

PCR 

K5A  Kenitran 

7.00 

IIM50A 

PGR 

MMOaOH 

FOR 

imi487 

POft 

KIM  1765 

POR 

\AM3l[m 

48.00 

hlfl42589 

PGR 

MA43622 

POR 

liA45104 

27.00 

MA47M4 

PCR 

WA47051 

25.50 

m472m 

30.80 

MA47771 

POR 

UA47838* 

POR 

uviaio@ 

37,95 

lhl49S5e 

POR 

11486731 

125,00 

I 


I 


•  am  STOCK  duicxs  ouu'  so  call  if  if  rat  war  wu  see)  is  lur  usibi  ••••»»»••••••.«•*•••••«••••••••■••"*•••- 


For  intoniMtion  call:  (602)  242-3037 


Toll  Free  Number 
800-528^1 80 
(For  orders  only) 


''All  parts  may  be  naw  or 
surplus,  and  parts  may  be 
8titie))tuted  with  comparab^a  pajia 
It  we  are  oul  of  stock  of  an  item." 


JVI^^^j  electr Oleics 

PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


73  Magazine  •  June,  1984     107 


Electronic  Specialty  Co, /Raven  Electronics 
Part   &   25N28  Part  ^  SU-Ol 

26Vdc  Type  N   Connector,   DC   to    1   GH*. 


COAXIAL   RfcLAY   StflTCHES   SPOT 

FSN  5983-556-H83 


$49,00 


/VC 


COM 


NU 


^6     Wf-% 


^  ?2i 


Aapheiiol 

Part  #   316-ID102-8 

115Vac  type   BNC  DC   to  3  GHz. 


$29 . 99 


Part  J^  300-11182 

120Vac  Type  BNC  DC  to  4  GHz, 

FSS   5985-543-1225 

539,99 


FXR 

Part  ^   300-11173 
l20Vac  Type  BKC  Same 
FSN  5985-543-1850 

S39.99 


BNC  To  Banana  Plug  Coax  Cable  RC-58  36  inch  or  BNC  to  N  Coax  Cable  RG-58  36  Inch. 


$7*99  or  2  For  $13,99  or  10  For  $50.00 


$8,99  or  2  For  $15.99  or  10  For  $60.00 


SOLID  STATE  BELkYS 


P&B  Model  ECT1DB72 
PRICE  EACH  $5.00 

Dlglslg,  Inc.  Model  ECS-215 
PRICE  EACH  $7,50 

Grigflby/Barton  Model  GB7400 
PRICE  EACH   $7.50 


5vdc  turn  on 


120vac  contact  at  7amp6  or  20aiiips  on  a 
10'*x  10*'x  ^124  aluiDinutn.  He^tslnk  with 
silicon  grease, 

24Qvac  contact  i^aix^s  or  40aiQps  on  a 
iO"x  I0"x  ,124  aluminum-   Heatsiuk  with 
silicon  grease, 

240vac  contact  at  15amp3  or  40aiaps  on  a 
10"x  10"i£  ,124  alwBiinuia,  Heataink  with 
silicon  grease, 

NOTE;  ***  Items  may  be  substituted  with  other  brands  ot   equivalent  model  numbers.  *** 


5vdc  tnm  on 


3vdc   turn  on 


qM*^ 


For  information  call:  (602)  242-3037 


electrof)icjii 


*'AII  parts  may  b^  ftew  or 
surplus,  and  parts  may  be 
substituted  with  comparable  parts 
If  wB  are  out  of  slock  of  an  Item/' 


Toll  Frtt  Numli#r 

eoo-S2a^oiao 

(For  onttn  only) 

PRICES  SUBJECT  TO  CHANGE  WfTHOUT  NOTrCE 


108     73  Magazine  •  June,  1B84 


I 


RECALL   PHONE  MEMORY  TELEPHONE  WITH   24  NUMBEK  AUTO  DIALER 

The  Reeall   Phone   Telephone  cmfiloys    the   latesc   Btate  of   art 
communlcatlosis   technology,  [t   1^  a  comt^ioaiian   telephone 
And  aytomatic  dialer   that  uses  premiuiiii-quality,aoXLd* state 
Qircruitry  to  assure    high^rfiXidblllty   perfis^rmaiice    In   personal 
or  buslneas  applicacioas*  $49.99 


ARQN    ALPHA   RAPID    BQKDING  GLUE 

Super  Clue   ffCE-486  high   strength 
rapid  bonding  adhesive. Alpha 
Cyanoacry late. Set-Time   20  to  40 
sec,  ,0*7fl*ox^  (iQgis,) 

S2.00 


TOUCH  TONE  PAD 

MITSUMI  LTiF/VHT  VARACTOR  TUNER  MODEL  OVElA 

Thia  pad  contains  all  the  electronics  to 

Perfect  for  those  unBcrambler  projecta. 

produce  standard  touch-tone  tones.  New 

New  with  data* 

with  data. 

^^^^^^^^^ 

.^^^^B^^^^^^^^^^^^^B*'! 

4iHH^^^^^^^K/' ' 

$9,99  OT    10/^89.99 

S19.99  or  10/S149.99 

IMTEGRATED  CIRCUIT, 


MC1372P 

HC135BP 

«Ci350P 

»C1330A1P 

MC13L0P 

MC1496P 

LM565N 

LH380N14 

LM1889N 

NE364N 

NE361H 


Color  TV  Video  Modulator  Circuit* 

IF  Amp.  fLiiniCeryFM  Detector p Audio  Driver, Electronic  Atteiiuator* 

IF  Amplifier 

Low  Level  Video  Detector 

FM  Stereo  Demodulator 

Balanced  Modulator/Demodulator 

Phase  Locked  Loop 

2 Watt  Audio  Power  Amplifier 

TV  Video  Modulator 

Phase  Locked  Loop 

Phase  Locked  Loop 


I  to  10 

iiup 

4.42 

$2.95 

5-00 

4.00 

1.50 

1.25 

l.SO 

KIS 

4-29 

3.30 

1.50 

1.25 

2.50 

2,00 

l>56 

1,25 

5.00 

4,00 

10.00 

8.00 

10. oo 

a.  00 

FERRANTI  ELECTRONICS  AM  RADIO  RECEIVER  MODEL  ZN4  14  IK  TEG  RATED  CIRCUIT. 
Featuraeii 

1,2  to  1,6  volt  operating  range.  , Less  than  0.5nia  current  consumption*  ISOKHz  to  3MHz 
Frequency  range. ^a^y  to  assemble, no  alignment  necessary.  Effective  and  variable  AGC  action* , 
mil  drive  an  earphone  direct*  Excellest  audio  quality*  .Typical  power  gain  of  72dfi.tTO-18 
package,  yitb  data. 52.99  or  10  For  $24.99 


HT  CAD  RECHARGEABLE  BATTERIES 

AA  Battery  ?ack  of  6  Thest  are  Factory 
New.  $5,00 

SUB  C  Pack  of  10  1,  SAznp/Hr'.   $10.00 

Gates  Rechargeable  Battery  Packs 


12vdc  at  2,5Amp/Hr, 
12vdc  at  SAmp/Hr, 


$11.99 
$15,99 


^H^^i\j  electroqici 


''All  pans  may  be  riew  or 
surplus,  ai>d  parts  may  t^d 
substituted  wilh  comparable pajis 
it  we  are  our  of  stock  ot  an  Hem." 


MOTOROLA  r>lRF559  RF  TRANSISTOR 

hfe  3Cmin  90typ  200rmx. 

ft  3000rTfiz 

gain  8db  min  9.5typ  at  870:tiz 

13ct)  typ  at  Sl^itiz 
output  power  .^jwatts  at  12.5vdc 
at  SZCTTtiz. 

$2.05  or  10/$15.00 


For  infonnatlon  call:  (602)  242-3037 

Toll  Ftbb  Number 
800*528-0180 
(Far  orders  only) 

PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


73  Magazine  *  June,  1984     109 


"SOCKETS  AND  CHIMNEYS" 


ElMAC  TUBi;  SOCKETS  AND  CHIMNEYS 


SKllO 

SK300A 

SKAQO 

SKAOe 

SKA  16 

SK5Q0 

SK60a 

5K602 

SK6a6 

SK607 

SK6I0 

SK620 

SK626 

StC630 

SK636B 

SK640 

SK646 

SK700 

SK711A 

SK740 

SK770 

SK800A 

SKa06 

SK810 

SK500 

SK906 

SKi420 

SKU90 


Socket 

Socket  For  4CX5000A,R,J,  4CX10,OOOD,  4CX15,000A,J 

Socket  For  4-l25Ap2S0A,400A,40OC,4Flll25At400Ap4-500A,S-500A 

Chimney  For  4-25OAp400A,400C,4PR4OOA 

Chlsmey  For  3-4O0Z 

Socket  For  4-100QA/4PR1Q00A/B 

Socket  For  4CX2S0B,BC,FG,R,4CX55OA,F,FJ 

Socket  For  4CX250BpBC,FG,R,4CX35OA,F,FJ 

Chimney  For  4CX250B,BC.FG,B,4CX350A,F,FJ 

Socket  For  4GX600JtJA 

Socket  For  4CX600J,JA 

Socket  For  4CX600J\JA 

Chimney  For  4CX600J,JA 

Socket   For  4CX60CU,JA 

Chiinney  For   4CX600J,JA 

Socket  For  4CX60aj,JA 

Chiomey  For  4CX60OJ,JA 

Socket  For  4CX300A,Y,4CX125C,F 

Socket  For  4CX300A,Y,4CX125C»F 

Socket  For  ACX300A,Y,4CXl23CtF 

Socket  For  4CX300A.Y ,4CX125C,F 

Socket  For  4CXIO0OA,4CXl5O0B 

Chimney  For  4CX1000A,4CX1500B 

Socket  For  4CX1000A,4CX1500B 

Socket  For  4X500 A 

Chinmey  For  4X500A 

Socket  For  5CX3D00A 

Socket  For  4C¥aOOOA 


SPOR 

$520,00 

260*00 

74,00 

36.00 

390.00 

5K00 

73.00 

U.OO 

60.00 

60,00 

66.00 

10,00 

66.00 

34.00 

36,00 

71*00 

223.00 

225,00 

86,00 

86.  DO 

225,00 

40,00 

225.00 

300. 00 

57.00 

630. 00 

505.00 


JOHNSON  TUBE  SOCKETS  AiND  CHIMNEYS 


124-1 11/SK606 

122-0275-001 

124*0113-00 

124-116/SK630A 

124-L15-2/SJC62QA 


Chimney  For  4CX250B,BC,FC,R,    4CX350A,F,FJ 

Socket  For    3-500Z»    4-125A*    250A,    AOOA,    4-500A,    5-500A 

Capacitor  Ring 

Socket  For   4CK250B,BC,FC,R.    /4CX350A,F,FJ 

Socket  For  4CX250fl,BC^FG jR,    /4CK350A,F,FJ 

813  Tube  Socket 


$  10.00 
(pair) 15.00 
15,00 
55-00 
55,00 
20.00 


CHIP  CAPACITORS 


,8pf 

lOpf 

lOOpf* 

Ip^' 

12pf 

llOpf 

Kipf 

15pf 

I20pf 

l,4pf 

I8pf 

I30pf 

i,5pf 

EOpf 

iSOpf 

l.Spf 

Z2pf 

leopf 

Z.Zpf 

24pf 

laopf 

2,7pf 

27pf 

200pf 

3.3pf 

33pf 

2Z0pf* 

3,6pf 

39pf 

240pf 

3.9pf 

47pf 

270pf 

4,7pf 

51pf 

300pf 

5.6pf 

56pf 

330pf 

6.8pf 

68pf 

360pf 

S.Zpf 

82pf 

390pf 

PRICES: 

1  ^ 

to  ' 

10  - 

.99c 

101  to 

1000 

,60e   * 

11 

to 

50  - 

.90€ 

1001  & 

UP 

,35C 

51 

to 

100  - 

.80e 

430pf 
470pf 
BlOpf 
560pf 
620pf 
680pf 

820pf 

lOOOpf/.OOluf* 

leoopfy.ooisuf 

2700pf/.0027uf 

10,000pf/.01uf 

12,0Q0pf/,012uf 

lStOO0pf/,O15uf 

i8.000pf/,Ol8yf 

IS  A  SPECIAL  PRICE:  10  for  $7,50 

100  for  J65.00 
1000  for  $350.00 


WATKIUS  JOHNSON  WJ-V907:  Voltage  Control! eil  Microwave  Oscillator 


$110,00 


Frequency  range  3,6  to  4,2GHZj  Power  ouput,  Min«  lOdBm  typical,  8dBni  Guaranteed. 
Spurious  output  suppression  Harmonic  (nfo),  mln*  20ctB  typical,  In-Band  Non-Harmonic,  min. 
SOdB  typical.  Residual  FM,  pk  to  pk,  Max.   SKH2,  pushing  factor,  Wax.  SKHz/V,  Pulling  figure 
(1,5:1  VSWR),  Rax.  SOHHz,  Tuning  voltage  range  +1  to  +i5vQlts,  Tuning  current,  Hax,  -O.lmA. 
moduUtion  sensitivity  range.  Max,  120  to  30»iz/V,  Input  capacitance,  Kax,  100pf»  Oscillator 
Bias  *15  +-0,05  volts  g  55iiiA,  Max. 


TUBE  CAFS  (Plate) 

$11<00 

HRl,  4 

HR2,3,  6  &  7 

13,00 

HR5,  8 

14.00 

HR9 

17.00 

HRIO 

20. 00 

Toll  Free  Number 
600-528-0180 
(For  orders  only) 


"All  parts  may  be  new  or 
surplus.  &nd  parts  may  be 
Substituted  witft  comparable  parts 
If  we  afe  out  of  stock  of  an  item," 


JVl^^^z  elect roqics 

For  information  call:  (602)  2424037 
PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


110     73  Magazine  •  June,  1984 


TYPE 


TUBES 


PRICE 


TYPE 


PRICE 


TYPE 


PRICE 


2C39/7289 

$  34.00 

1182/4600A 

$500.00 

ML7815AL 

$  60.00 

2E25 

7.95 

4600A 

500.00 

7843 

107.00 

2K28 

200.00 

4624 

310.00 

7854 

130.00 

3-500Z 

102.00 

4657 

84.00 

ML7855KAL 

125.00 

3-1000Z/8164 

400,00 

4662 

100.00 

7984 

14.95 

3B28/866A 

9.50 

4665 

500.00 

8072 

84.00 

3CX400U7/8961 

255.00 

4687 

P.O.R. 

8106 

5.00 

3CX1000A7/8283 

526.00 

5675 

42.00 

8117A 

225.00 

3Cn000Fl/8239 

567.00 

5721 

250.00 

8121 

110.00 

3CW300O0H7 

1700.00 

5768 

125.00 

8122 

110.00 

3X2500A3 

473.00 

5819 

119.00 

8134 

470.00 

3X3000F1 

567.00 

5836 

232.50 

8156 

12.00 

4-65A/8165 

69.00 

5837 

232.50 

8233 

60.00 

4-125A/4D21 

79.00 

5861 

140.00 

8236 

35.00 

4-250A/5D22 

98.00 

5867A 

185.00 

8295/PL172 

500.00 

4-400A/8438 

98.00 

5868/AX9902 

270.00 

8458 

35 .  00 

4-400B/7527 

110.00 

5876/A 

42.00 

8462 

130.00 

4'400C/6775 

110.00 

5881/6L6 

8.00 

8505A 

95.00 

4-1000A/8166 

444.00 

5893 

60.00 

8533W 

136.00 

4CX250B/7203 

54.00 

5894/A 

54,00 

8560/A 

75.00 

4CX250FG/8621 

75.00 

5894B/8737 

54.00 

8560AS 

100.00 

4CX250K/8245 

125.00 

5946 

395.00 

8608 

38.00 

4CX250R/7580W 

90.00 

6083/AZ9909 

95.00 

8624 

100.00 

4CX300A/8167 

170.00 

6146/6i46A 

8.50 

8637 

70.00 

4CX350A/8321 

110.00 

6146B/8298 

10.50 

8643 

83.00 

4CX350F/8322 

115.00 

6146W/7212 

17.95 

8647 

168.00 

4CX350FJ/8904 

140.00 

6156 

110.00 

8683 

95.00 

4CX500J/8809 

835.00 

6159 

13.85 

8877 

465.00 

4CX1000A/8158 

242.50* 

6159B 

23.50 

8908 

13.00 

4CX1000A/8168 

485.00 

6161 

325.00 

8950 

13.00 

4CX15OOB/8560 

555.00 

6280 

42 .  50 

8930 

137.00 

4CX5000A/8170 

1100.00 

6291 

180.00 

6L6  Metal 

25.00 

4CX10000D/8171 

1255.00 

6293 

24.00 

6L6GC 

5.03 

4CX15000A/8281 

1500.00 

6326 

P.O.R. 

6CA7/EL34 

5.38 

4CW800F 

710.00 

6360/A 

5.75 

6CL6 

3.50 

4D32 

240.00 

6399 

540.00 

6DJ8 

2.50 

4E27A/5-125B 

240.00 

6550A 

10.00 

6DQ5 

6.58 

4PR60A 

200.00 

6883B/8032A/8552 

10.00 

6GF5 

5,85 

4PR50B 

345.00 

6897 

160.00 

6GJ5A 

6.20 

4PR65A/8187 

175.00 

6907 

79 .  OO 

6GK6 

6.00 

4PR1000A/8189 

590.00 

6922/6DJ8 

5.00 

6HB5 

6.00 

4X150A/7034 

60.00 

6939 

22.00 

6HF5 

8.73 

4X150D/7609 

95.00 

7094 

250.00 

6JG6A 

6.28 

4X250B 

45.00 

7117 

38.50 

6JH6 

6.00 

4X250F 

45.00 

7203 

P.O.R. 

6JN6 

6.00 

4X500A 

.   412.00 

7211 

100.00 

6JS6C 

7.25 

5CX150OA 

660.00 

7213 

300.00* 

6KN6 

5.05 

KT88 

27.50 

7214 

300.00* 

6KD6 

8.25 

416B 

45.00 

7271 

135.00 

6LF6 

7.00 

416C 

62.50 

7289/2C39 

34.00 

6LQ6  G.E. 

7.00 

572B/T160L 

49.95 

7325 

P.O.R. 

6LQ6/6MJ6  Sylvania 

9.00 

592/3-200A3 

211.00 

7360 

13.50 

6ME6 

8.90 

807 

8.50 

7377 

85.00 

12AT7 

3.50 

81  lA 

15.00 

7408 

2.50 

12AX7 

3.00 

812A 

29.00 

7609 

95.00 

12BY7 

5.00 

813 

50.00 

7735 

36.00 

12JB6A 

6.50 

NOTE 


*    = 


=  USED  TUBE 


NOTE  P.O.R.  =  PRICE  ON  REQUEST 


"ALL  PARTS  HAY  BE  NEW,  USED,  OR  SURPLUS,   PARTS  MAY  BE  SUBSTITUTED  WITH  COMPARABLE  PARTS  IF  WE 

ARE  OUT  OF  STOCK  OF  AN  ITEM. 


NOTICE'  ALL  PRICES  ARE  SUBJECT  TO  CHANGE  WITHOUT  NOTICE. 


Far  InfomialSon  cail:  (602)  242-3037 


Toll  Free  Number 

600-528-01 80 
(For  orders  only) 


"AM  pafts  may  be  new  or 
surplus,  and  parts  may  be 
substituted  with  comparable  p@rts 
if  we  are  out  of  stock  of  an  Item." 


^H^x  electroi|ici 

PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


I' 


73  Magazine  •  June,  1984    111 


"FILTERS" 

COLLINS  Hechgnlcol  Filter  #526-9724-010  MODEL  Fi|55Z32F 

455KHE  at  3,2KH3  wMe,  May  be  other  models  bot  equivalent-  May  be  used  or  newt  515*99 

ATLAS  Crystal  Filters 

5* 595-2, 7/8 ASB,    5.595-2,7/lSB 

8  pole  2-7KHZ  wide  Vpper  sidebard.   InpedeiKJe  aOOb^ITts  15pf  In/800oJins  Opf  out.  19,99 

5.595-2.7/8/U,    5,595-2. 7 A^SB 

3  pole  2.7Kh2  wide  Upper  sideband-  Ijnpedenoe  SOCW-ins  15pf  ln/800oht©  Opf  out,  19*99 

5.S95-.500/4,    5-59S--500/4/CW 

4  pole  500  cycles  wide  CW.     Inpedance  SOOotms  15pf  Xn/aoOohms  Opf  out*  19,99 

9,0USB/OT 

6  pole  2.7KH2  wide  at  6dB.   Inpedance  €80ohms  7pf  In/300olins  8pf  out,  CW- 1599Hz  19.99 

KOKUSAI  ELECTRIC  CO,  flechanlcol  Filter  #f1F-455-ZL/ZU-21H 

45SKHZ  at  Center  Frequency  of  453. 5KC,  Carrier  Frequency  of  455KHZ  2,36KC  Bandwidth, 
Upper  sid^Dand,   {ZU}  19,99 

li^wer  sideband,   (ZL)  19,99 

CRYSTAL  FILTERS 


NIKKO 

TEW 

SDK 

TYCO/CD 
MOTOBOIA 

PTI 

m 

pn 

OGMIECK 

FRC 

FILIBCH 


FX-07800C 

FEC-103-2 

SCH-113A 

1F-31H250 

001019880 

4884063BO1 

5350C 

5426C 

1479 

A10300 

E3^XF-15700 
2131 


7,8^s^z 

10,6935MH2 

11.2735MHz 

CT  3179,31013 

10.7MI2  2pole  15KHZ  ba«3width 

U.TWIz  2pole  ISKHz  bandwidth 

12MHz  2pole  15KH2  fcandwidth 

21*4^H2  2pole  15KH2  barxiwidth 

10,7MHz  Spole  bandwidth  7,5KHz  at  3dB|   5KHz  at  6dB 

4SMHZ  2pole  ISKHz  bandwidth 

20,eMHz  36KH2  mde 

CF  7.825MKZ 


?10,00 

10.00 

10.00 

19,99 

5,00 

5.00 

5,00 

5-00 

20,00 

e.oo 

10,00 
10.00 


'«-»•«#««•• 


CERAMIC  FILTERS 


AXEL 
MUKATA 


NIPPOK 


TOKIN 
WTSUSHIBA 


4F449 

TO-OIA 

TCF4-12D36A 

BFB455B 

aFB455L 

CFM455E 

CFM455D 

CFR455E 

CFU455B 

CFU455C 

CFU455G 

CFU455H 

CFU455I 

CFW455D 

CBV455H 

SFB455D 

SFD455D 

SFE10,7MA 

SFE10.7MS 

SPG10,7WK 

IF-&4/CFU455I 

LF-B6/CFU455a 

IF-B8 

LF-C18 

cr455JV^PU455K 

^X:-L455K 


12.6KC  Bardpass  Filter  3dB  bandwidth  l*6KHz  fron  11.8-13,4KH2 

455KHZ4-2KH2  bandwidth  4-71  at  3dB 

455Kf324-Uaiz  bandv>ldth  6dB  min  12KH2,  60dB  itax  36KHz 

455KIIZ 

455KHZ 

455KHZ  4-5*5KHz  at  3dB 

455KH2  -1-7^2  at  3dB  , 

455KHZ  ^-5,5KHz  at  3dB 


f  +-8KHZ  at  6dB   f   -l-lGKHz  at  5DdB 
■I-10KH2  at  6dB   ,    +*20KH2  at  50dB 
,  ^-8KHz  at  6dB   ,  -I-16KHZ  at  60dB 
455KHZ  4-2KHZ  bandwidth  4--15KHz  at  6dB,   4-30KHz  at  40dB 
455KHZ  'f-2KHz  bandwidth  +-12,5KHz  at  6dB  >  4-24KHZ  at  40dB 


455KHZ  4-1KH2  bandwidth  +-4,5KH2  at  6dB 

455KHZ  -i-lKKz  bandwidth  +-3KIIZ  at  6dfl   , 

455KH2  -I-1KH2  bar^iwidth  -J-2KH2  at  6dB   f 

455Kliz  4-lOKHz  at  6dB  ,  4-20KHZ  at  40dB 

455KHZ  4-3KHZ  at  6dB  ,  4-9KHz  at  4adB 

455KH2 

455KHZ  4-2FKZ   ,    3dB  bandwidth  i,5mz  ^-iKte 


f   +^10KHz  at  40dB 
+-9KHZ  at  40dB 
+-6KH2  at  40dB 


10,7MHz  280KHZ  +-50KHZ  at  3dB 

10,7iyiiz  230KH2  -i-SOKHz  at  3dB 

iO,7MH2 

455KHZ  4-lKHz 

455KH2  ^-iKHz 

455KIIZ 

455KHZ 

455KHZ  4-21012 

455KIIZ 


650KHZ  at  20dB 
570KH2  at  20dB 


10 ,  00 
5.00 

10.00 
2.50 
3.50 
6.65 
6.65 
8.00 
2,90 
2,90 
2.90 
2.90 
2,90 
2.90 
2,90 
2.50 
5,00 
2,50 
2.50 

10,00 
2.90 
2.90 
2.90 

10.00 
5.00 
7.00 


«*#«««•«««««•«'■'•••»«#««»»*•#»«#«••««•«*««#*»*«««««««••«**««#«««»«*«*««««•«» 


Pa^^ER  OUTPUT  1.6W, 
68K  OHM  IWiTT  BMJLABT 


SPECTRA  PHYSICS  INC,  Model  088  HeNe  LASER  TUBES 

BEAM  DIA.  ,75MM  BEAM  DIR.  2,7MR 

lOOOVDC  4-lOOVDC         At  3,7MA 

ROTRON  MUFFIN  FANS  Model  MARK^/MU2A1 

115  VAC  14WATTS  50/60CPS  IMPEDmCE  PROTECrEI>F 

loscm  at  60CPS  THESE  ARE  NEW 

Toll  Free  Number 
800-528-0180 
(For  orders  only) 


BKJ  STAKTmC  VOLTAGE  DC 

$59,99 


8  sera  at  50CPS 


(^^1^  elect roi|ics 


PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


$  7.99 

"Atl  parts  may  be  new  or 
suffilus,  and  pans  may  be 
substituted  with  com  parable  parts 
\l  we  are  out  of  slock  or  an  iterrt ' 


For  information  call:  (602)  242-3037 


112     73  Magazine  •  June,  1984 


HEWLETT  PACKARD  SIGNAL  GENERATORS 


606A 

605  B 
6DSC 

608E 

6l2fl 
Bl^A 


6i6A/ 


&OKHZ  to  65nHz  In  6  bonds 
to  3v  Into  50  ohrn^,Bullt-m 
modulation, 


+-12. Output  ievel  adjustable  O.luV 
crif&tQl  caltbrotQr.400  -lOOOHz 


Some  as  above  Out 
opej'<]tion  with  HP 


hcis  freauencv  control 
S708A  S/nchronUer. 


feature  to  aliOK 


lomz  to  'J&OflHz^O-iuV-lV  Into  50  onms.AH.CW^or  pulse  mcKl- 
ulotlon,  calibrcited  attenuator. 

lOmz  to  420MHz.  O.luV-O.SV  Into  50  ohms. '-0. 51  occurocy. 
bulU-ln  crifstal  coUbrotor,  AM-CW  or  pulse  output. 

imgrovad  vers  ton  of  papular  50£CpUp  to  IV  output. Improved 
stobll JtVilow  resjduol  Ffl, 


S16B 

t  650, 0€ 

618B 

$1100.00 

6iac 

J  son. 00 

620A 

t   375.00 

62  OB 
626A 

freauencv  Qcc'urocy  w't'th 
be  used  wtth  HP  870SA 


10MH2  to  ^Sbmz  in  S  bonds  +-1L 
built-in  crv5to]  calltifOtor.Can  uti  useju  wiiri  nr  e/us/* 
SynchroniserH  Output  continuously  odJustabU  from  ,luv  to 
.5V  into  50  onms. 

ASQ-1230MHZ  ,o.luV'0.5V  Into  50 'ohms  ^caU  brat  eel  autpyt. 

900-2100MH;  wjth  mpny  features  locludlrtg  caHbroted  output 
and  Gil  modylatlon  chorocEeristlcs- 


ilij.50.00- 


$1100.00 
t  ?50.00 


*  5D0.OO 


Direct  reodina  arsd  direct  control  from  LS  to  ^.26Hz,   The 

H.P.aitA  feotures  +-l,5dB  collbrated  output  occuracy  Trofn 
-3127dafi  to  'dBm.The  output   is  directly  calibrated  In  [Rjcro- 
volts  and  dBin  with  continuous  monitoring.  Simple  operation 
frequericv  diod  occuracy  Is  +-l%  and  staoilltv  exceeds  0.005S- 
/  C  cJionse  in  ombient  ternueroture.  Colibroted  ottenuotor  is 
within  +-li5dB  over  entire  output  dond-   50  ohm  impedance  unit 
has  intemol  pulse  inaduiattDn  with  rep  rate  varloble  from  4Q 
Hi  to  iiKH^^vorEoble  pulsewidtiid  to  lOusec'Jond  yorioDle  pulse 
detay(3  to.  300usec),£Kterntii  moduiotina  tnputs  inefeas  ver- 
sotllity,  "■■■■■■'  %  375.00 


LMX  UBORATOIES    THS-2  FLEXICOi  HEADSTT, 

tfiese  rieodsets  com  wttti  dotd  to  iicx^k  up  to  o  ICON  radios  ax)  nuny  other  eaiitpieit. 
f^erfect  for  Airplmes  ,  Helicopters  ^  WoUe  Rodlos  .  or  Just  tlie  Telephone. 
l?iese  Are  Foctorv  New  fn  SeQled  Bo?ces,  Limited  Siooly  Only  $69.95 


(3Vf«Hz 


S/OBA 


So™  OS  obove  but  later  inodel,  *  600.00 

J.S  to  /,&6Hz  range, wi en  calibrated  output  ond  selection  of 
pu]se-Frt  or  SQUore  wave  modulation.  (  600,00 

Same  os  aboye  but  ioter  model,  $2200.00 

7   to  llGHz  range, with  calitiroted  outout  ond  select lofl  of 

PUise-FM  or  sauare  wave  modulotion.  t  ?SO.0O 

Some  as  above  but  later  n»del,  42200.00 

10  to  15€H2,10raw  nutPUt  power  with  colibrated  output  and 
pulse-square  wove  or  F«  modulotlon.  ti^200.00 

Synchronizer  used  with  605B,603F,The  synchronizer  Is  o 
phase- ]ocS<  frequency  stpbllizer  which  provides  crystal- 
oscillQtor  frequency  stobillty  to  i*30MHz  in  the  60SF  signal 
generotor. Phase  locking  eliminates  microphonics  ond  drift 
resulting  in  excellent  frequency  stability. The  S70&A  includes 
a  vernier  i4iJch  con  tuna  the  reference  oscillator  over  a  rortge 
Of  +-0,25S  permitting  freoyency  settabJIity  to  2  ports  in  lO 
to  the  seventh, Provides  a  yery  stable  signoi  thot  satisfies 
many  critical  applltotlons.  -^ 

{With  ilP  606B  or  60aFl      t  350.00 
(Withoiit)  $  ^50,00 


I 


I 


eic-io 


NF-105F 


$2500.00 


t21D0,00 


ELECTROMETRICS  EMC-10  RFI/EMI   RECEtVEfi 

LoH  freQuency  onalyrer  covering  20iiz  to  50KHz  frequency 

range.ExtendGbla  to  500  KHi  in  wideband  mode. 

Empire  l>ev]ces  Field  Enten&lty  Meter. 

Has  HF-].05/TA.NF-10VTX.NF-105/TbNF-105/T2,NF-X05/T3. 

covers  WKHz  to  lOOQHHz. 

ALL  EOOIPflENT  CARRY  A  50  DAY  GUARAHTEE. 
EflUIPnEl^T  IS  NOT  CALIBRATED* 


TERMS:  DOMESTlO;  PftptH,  C.O.O,  W  Cffclll  Gtiti 

FOflEliJN::  P(«p«id  <i'^y,  U.S.  Fyndfi.,  Monsv  Ontar.  or  CoKhlara  Chsck  Only. 

COJt.'  AiCoepla-Ws  ty  tatephona  at  maH.  Pflym«n(  from  tuBtOrtWr  wiH  be  t?v  Cash,  Mona/  Onlaf,  or  Gashiier'B  Chflc*.  We  s4b  BCrtry 
B«r  W*  e*rtrt01  accept  parBonal  ch&cka  lor  CO-D-'e-  C,0-P't  V*  Jhippml  Of  air  aniv  and  IMu  UniOd  f  arcel  Se.'vlc*. 

COHNRMUNG  OnDEDS:  Wfl  would  prefer  llial  conlirnnina  flfdtfls  nCt  fcn  Sent  ifter  a-  telflphocw  onSar  has  been  piacedL  1^  company 
polhcv  iiecesSFtaios  i  confinminfl  CMdar,  p1aH«e  maifc  "CQNFIftt^lHG"  ttolflly  w  Ifm  oftter.  IT  problerw  ck  duplrcile  B4ilpmHn1a  ofr 
cur  aw  fo  *rt  efdir  which  is  not  proporiif  marksd,  thH  cualpfnar  «r|N  J«  tipl^  rBsponaitle  !or  any  diaroBS  incurred,  plus  ■  151/fc 
r&£lQoh.  charo*  K^n  the  relurnBd  part^. 

CAEDfT  CAHDS:  We  are  now  accaptrrjtfl  MA;STf  RCARp.  VISA,  AHD  AMEfflCAN  OPRESB 

OATA  SHEETS:  Whan  we  hava  daia  aftwls  In  utOC*  W  4»vtC4S  wi  -Ml]  iupfily  irwtn  wJlh  Iha  ordw. 

DEFECTIVE  HATEHIALSf  A4I'  ctaimB  tor  deracllw  malerlala  mu«l  tM  cnMt  wllM»  30  DAYS  aller  r6delp4  «r  th«  part»l.  A1I  £tilma 
mmst  iriclurl*  Iho  thlective  matanal  Jlor  tpsling  purpoaeek  4  *i}p^  fll  Ovr  i'Tyijits,  ind  a  return  authWlMtfon  number  which  must  tn 
obUirt^  priOf  lo  shipping  Iha  mare-TiarKJlM!  Pack  lo  us.  Tfti*  c*n  b«  Obtafnsd  by  caJlina  (902!i  S'S-SAtS  or  aending  lia  ■  poalcard. 
Du*  1<j  MamuPacturer  wananjiaa  we  are  unable  Ms  nfrpl^M  ^f  it*«*  Cnftdlt  <3n  km^s  wlilcli  Jiaw  been  sokterad  to  or  H«vh  besn 
flllared  in  *ny  way.  AH  jattifn  Items  mual  tw  pajq*^  propsrtf  Of  rt  ivIH  voia  tit  wKrraritlea.  We  do  not  liaNnw  iflapofnaJbilHy  tor  ihhp- 
pInC  ti^iS  handling  Ctiargaa  Incumad. 

OELIVEHY:  Ordnn  are  uaually  ahippad  (h^  ^am^  0t\f  Ihffy  urt  pj«c«d  Of  ttw  naxl  business  day,  unlssE  we  ana  ouf  of  atoctt  hi  an 
i(*ffi.  ThB  cuBiomar  wrll  be  notiriad  by  paei  carcf  it  tiva  ar*  ooIaq  cu  bikCkOflSer  Ih*  iEein.  Our  normal  atilppJng  method  la  UPS  of  U.S. 
M^il  ^pQrK5l<>g  en  size  cr  the  weight  of  the  packa^.  taat  ^quipiiwyhc  !?■  rthip^^d  Only  by  ai^  ar>d  is  're^gl^t  collect,  un^eaa  pr\Qt 
arraji{]itm^nila  nave  been  made  and  ■ppnowad. 

FDHEiQiN  OftOeftS'  AIS  lorci^n  <?rt}ats  muat  b6  prepaid  wllh  a.  Caahl'ar'a  Check,  or  Monay  Circltf  maM  cut  In  0-$.  FuNQS  OflLT- 

ffta  are  sorry  bu1  C.O.O.  la  fmi  avuiiab^b  lA  twal^n  <;oi]inlflea  and  lalfers  of  cradit  a^a  ueva^^apla&ta  a$  a  tQnn  or  pa^rrtant  Fiirthv 
\T\foiniaiiQn  la  AMailabl«  on  rKfus^E, 

HOIil^  Monday  ttifu  Frtdiy  830  a.m^  to  5fl0-  p.m.  Saturdays  8;30  a.m.  W  *iXi  p.m.. 

IMSURAMC^  Plea»  ihClUd«  25c  TOf  AflCfi  additional  HOQJOO  over  (IQClOO,  OPS  ChNLY.  All  lnaiH«d  pachagaa  ana  ahJpfwl  thru  UPS 
only.  If  yoik  wilth  16  !>•*«  rl  4hi|3(Md  tfirtiu^  the  poet  oriica  thete  ia  a  ^.OD  rea  which  Is  sddltlanaJ  to  tha  ahlppJng,  handllna  u^l  in- 
auranca. 

OPEhl  ArCCO^MTS;  W»  n^grsl  Ihat  wa  do  not  jaaus  open  accounte. 

OfiDEft  FOtlMS:  N«W  OfdAf  lOfms  ara  liKluded  wlin  aecli  order  tot  ymir  eonvanJenca.  Ad(llt1(»nal  ondar  Ewma  ac«  «vtll«t!l«  on 
raqti«fit 

PARTS:  We  reservs  the  right  to  substitute  or  repEace  any  llflm  with  a  part  of  equal  or  comparabla 

spticificatian. 

POSTAQ E:  M I n i mu m  3h i pping  and  handU ng  i n  the  U-S,,  Qaoada,  and  Mex Ico  J s  M.OO  for  flrou nd  shJi> 
ments,  aJi  otticf  cciintrisa  Is  $5,50.  Alrrat&a  afe  avalfabia  at  the  time  of  yourofder.  Ail  foreign  orders 
please  include  25%  of  the  Ordered  flfnount  for  shlppina  and  handrinc.  G.O.D.'s  are  ahlppad  MR 
ONLY. 

PREPAID  ORDERS:  Orders  must  be  accompanied  by  a  check. 

PfllCES:  Pricfts,  are  subject  to  change  wItlHHit  notica. 

PURCHASE  OflDERS;  W^  accept  purchase  orders  only  wHen  theiy  a/a  accornpanleci  by  a  cf^eoK, 

RESTOCK  CHARGES:  If  parts  Am  returned  to  MHZ  ELECTRONICS,  INC.  due  to  custdmar  error,  the 
cu stonier  will  be  held  responsible  for  all  le&i  incurred  and  wJIt  be  charged  a  1&%  RES-TOCK 
CHARGE  with  the  remai^nder  iin  Ci^EDIt  ONLY-  T^e  following  rnu^t  accompany  any  feturr>;  A  copy  of 
our  invoice,  returfi  authorizatton  number  wfiich  must  bo  obtained  prior  (oslnip-pInQ  the  mafchandJae 
back.  Returns  musi  be  done  wl^lhln  10  DAYS  of  receipt  of  paroeL  Return  aulhOfization  numbers  can 
be  obfained  by  caElinf}  ^602)  242-d9l6  or  notlfylne  ja  by  post  <iAf±  Ratum  authorizatlOfiB  witi  not  be 
given  out  on  our  SOO  numtwr. 

SALES  TAX'.  AR^^QNA  residents  must  add  6%  sales  la^^  unless  a  sianetd  ARIZONA  resale  tax  cu4 
is  Currently  on  file  witfv  us.  All  orders  placed  by  persons  outside  of  ARIZONA,  but  d&l  I  veered  to  pV' 
sons  in  ARIZONA  are  subjeot  to  the  S%  saiies  tax. 

SHORTAGE  OR  DAMAGE:  A4i  ctaLma  for  at^ortages  or  dajTiagaa  must  be  ^^ade  withfrt  5  DAYS  of 
receipt  of  parcel,  Clalma  mu&t  JncFude  a  Pdpy  of  our  involve,  along  with  a  ratum  ajthorization 
number  which  can  be^  obtaEnad  by  contact Tng  us  at  (602)  242^916  qt  sending  a  poet  card,  Authori^a- 
lEona  car  not  be  on  our  KK)  r^urrb^r.  AH  Iterns  mual  be  property  packed.  If  Hems  are  not  propefly 
sacked  make  sure  to  conlact  the  carrier  so  that  they  can  come  out  ancf  Enspact  the  package  before 
t  \b  returned  to  ua.  Customers  whl4:h  do  no<  notify  ue  within  rhis  time  perloo  wtll  be  held  responsible 
fof  ihe  entire  order  ae  we  wiJi  consider  the  order  complete. 

QUR  BW  NUMBER  IS  STRICTLY  FOR  ORDERS  ONLY  (800^  52S41B0.  llS^FORyATION  CALLS  ARE 
TAKEN  ON  1602)  242-BOie  Of  (602)  242^1037. 


t^4B 


electrofycjK 


2111  W.  CAMELBACK  ROAD 
PHOENIX,  ARIZONA  85Q15 


''All  parts  may  be  new  or 
surplya,  and  parts  may  be 
substituted  vwJth  cornparable  parls 
if  we  are  out  oi  stock  of  an  if^m/' 


Toll  FrM  Number 
S00*52S*01M 
(For  onl«re  only) 

For  rnfomiatlon  call:  (602)  242-3037 


PRICES  SUBJECT  TO  CHANGE  WITHOUT  NOTICE 


'See  Lfst  of  AdverfrBsrs  on  page  1U 


73  Magazine  •  June,  1984    113 


ADVERTISERS 


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P«Qi 


t?B  AcsCommuniCAtlDfiaJna.,.. .  ,.SII 
127  Acfvaoc«d  Comput«f  Qonirols 

117 
AEA/ Advanced  EioCtfOOiC 
AppH  cations  .*.,«*,.,*.*...«'S5 

20    All  EiBCtmnieM  ... ...... .5& 

211  Amateur  Acc^msorles . . . ,  ^ . , , .  ,S9 
*      Amatmir  Oommunlcaiiorts,  Etc. 

243  MmmimxMIMBS^i€  Eleclronics 


IS 


47S 

141 
346 
276 


»•-••*-*■•»•• 


334  Afn^don  Assoclstos  ,,,........  19 

109  AnaiogTectinolDffy  ,„*--,..*,>flO 

71     Applied  Invenlion BO 

2^  Austin  Custom  Antennas «1t7 

266  AzimiilliCofnfmifiicetions  Coip. 

202  e&UEntfnwflng  , 53 

Barker iW11 1 lamaon   ..,„,,,,. 14 
305  Barry  E)ectfofiie$ , . . . 37 

*  Bill  Ashtry  4  Son  ,  „ . . 116 

*  Bireti  H  HI  s^\m ,,,.,. * ,  .as 

*  B\  ackftbur g  Gfouf*  .>  -_*^  ^  - .  *  *  24, 72 

Bfitt  s  2  W«y i  -  - , .  *^  ...16 

Buttern  ut  Etectrofiics »..,,,,,,  *7t 
CE  EngineefiriQ,  IfK « *. « . .  *  .32 

111  CeCoCommurti cations .S6 

480  Com-Rad  IrKfustries  ...  ^ .... ..  .SO 

89    Clutterfree  Modular  CofiftCMtte 

13  Colnfntofflatlontl  103 

14  Communlcaiiona  Concepts.  Inc, 

nai   ■■   I   I   ■   .   Id   »■■■   ■■   BO-aB   ■   ibj   ■■-■rSl 


18 

4ai 

29 

99 


151 


31 
271 

■ 

33 

482 
460 

123 

274 

275 

36 

S3 

278 

483 


Communications  Specialists.  Inc. 

66.67 

Computer  Tmd^ ^-.^.101 

Connect  Systems  Jr^c  ..... 33 

Cushcraft Corporation........ .57 

Data  S«fvice .101 

DiffimtAudla .................  13 

Doppler Systems  .,--,.*:....* -7S 

Electronic  Specialists.  Inc.  .  > . .  .47 
BecirDnl€Speciallats,lrtc.  .....91 

Esoteric  Erigineerir^g  ,  „ 101 

FoX'Tango  Corpora*  Ion  ..,...«.  103 
Fox'Tango Corpof atton  ....... .OS 

G  LB  Electronics  ..._,.,., 64 

Grove  Enterprises 121 

Hai"TniiniK  ^,,.  >.l. .»*.,, ,..4 ♦72 
riam Ma?t^T9P63  ■•■*«*.««f< •^S 

Ham  Radio  Ovtlel 3 

HamtTi3fiics, NY  ».... ....128^129 

HamtTCmics.  NfY  ..,.,,,,.„,.  ,90 

Htandi'Tek  .  . .  . , ,.,.,,,.  .80 

Hofimn  Printing  Co. 101 

Hustler, Inc.. .... . .  .119 

ICOM ..Cov.lJ 


Kenwood, 7.a,9.92,Ccw.!V 

322  Lftrs«n  Antennas .7* 

485  Larian  Antennas ..,,.,,.  ,90 

82     MCM  Communicatiorift ....  24 

477  MCW  Communications  ... 91 

9      MFJ  Enterprises 56.  S9 

48    MHi  Electionics  .,...,..,.  104-1 13 
54    lAagnum  Oistfibutors.  Inc.  ......  56 

"       MIcrocomputef  BusinMS 

Applications  ».. ..,.  ...........103 

Micro  Gontrtri  Specialties     . .  123 

Micfolog Corp.  ... «..««...  .41 

28 


•«4i4<l    *»■*« 


IntematEcnal  Crystal  f^fg^  ......  117 

JAL  RadioComm. ,,,......,,.,  .46 

Jinx  Electronics . .  19 

Jo*in  VestyCo.  ...............  .90 

ir  Magazine .82 

KLM Electronics  , 77,91 

Kantfonics 52 


49 
SI 

*  M^raQe  C^nvnur^catrons 
270  Mouser  Electronics  .... 
412  Nemal Elect ronk^  ..... 
137  Nul$  A  Vott^ 

PC  Electronics 

4      Parsec  Communicat  ions . . . 
484  DCD  Marketing  Services  ... 

RF  OaJA^  Udl  ■«•«*»«  i.  «•* . 
277  RFProdyctS  .*..*>*,* 

6 1  Radio  Amateur  Caffbook^  Inc. 
454  RaOiottit . , . , 

Radio  Wefehouaa .............  ,32 

268  Ramsey  Electronics  .....*...*  »127 

62  Ramsey  Boctfonics  ...........  125 

487  Regency  Electronics  . 93 

Rotten  l.ee  fine  Qoi'd  ,...,..,..  .65 

RC/A/^  MaQa2;in^ ,♦**,♦,..,  .51 

73 

Adyeflising  „ 100 

Dealer  Ad  ....»*...*.,,  * 123 


..53 
.101 
..47 
..17 

..69 
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,  ,85 
.123 
...4 
.119 
..79 


500 


BOOKS,  etc. 


AMATEUR  RADIO/ELECTRONICS  TTTLES 


Catalog  # 

BK7307 

CT7305 

CT730e 

CT7313 

CT7320 

CT7325 

CT7394 

BK7308 

BK7321 

BK7322 

BK73^ 

BK7312 

BK7a40 

aK73e3 

eK73lO 
BK7302 
BK7351 
BK736a 
SG7357 
SG735e 
CT7300 
LB7360 
LB736t 
LB7362 
LB7365 
BK7315 


Ittm 

Betiind  tha  Dial 

5  WPM  Code  Tape 

6  +  WPM  Code  Tape 
13+  WPM  Code  Tape 
20+  WPM  Code  Tape 
25+  WPM  Code  Tape 
Code  Tapes  (any  four  above) 
Contest  CooktxK34( 

A  Guide  to  Haxrr  l=tadJo 
Hot3tjy  Computers  Are  Here 
Uving  on  a  Shoestring 
The  Magic  of  Ham  Radio 
The  New  Hobby  Corriputers 
The  New  Weather  Satellite 
Hsndboolc 

Owner  RsfiAlrof  Radio  Equipment 
Propagation  Wizard^s  Handtxx)k 
SSB. .  .The  Misurxiefstood  Mode 
VHF  Antanna  Handtxok 
Study  Guide^ovice  Class 
Study  GulcM^enerat  Id  ass 
Novice  Study  Tapes  (Set  of  3) 
Test  Equip,  Lib.  V2— Audio  Tester 
Test  Equip.  Ub.  V3^ Radio  Equip. 
Tesi  Equip.  Ub,  V4 — IC  Test  Equip. 
Test  Equip.  Ub^  VQ— Vots.  2, 3,  &  4 
World  i^tepealer  Atlas 


$ 


Price 

4.95 
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Am 

15.95 
5>95 
AM 
2.49 
TMI 
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2.49 


7JSS 

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5J50 
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6.95 
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%M 
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2.00 


MICROCOMPUTER  TITLES 

neifi 

Annotated  BASIC  Vol.  t 
Annotated  BASfC  Vol,  2 
inside  Your  Oompytar 
Introduction  to  TFtS^  Data  Flies 
Kilobaud  Kiassroom 
Mach.  Lang.  Subroutines  fof  CoCo 
Prog,  fc^  Elect rt>nlc  Circuit  Design 
BK7400  with  Apple  disk 
BK7400  with  IBM  PC  disk 
BK7400  with  TB&dO  disk 
The  Seleclric™  Interface 
Some  of  the  Best  from  Kilobaud 
TR&eO  as  a  ControHer 
W&eoWBO  Assembly  Lang.  Ubraiy 
Understanding  4  Profl. 
MJcrooomputers 

SHELF  BOXES 

CatatoQ  f  Hem 

aXlOQO  Shelf  box-1 

miOOl  Slwlf  boxes— 2-7 

BX1002  Stielf  boxes— 6  and  up 


Catalog  # 

BK7364 

BK7385 

BK7390 

BK7398 

BK7386 

BK7404 

BK7400 

CC74O0t1 

CC740012 

CC7400t3 

BK738a 

BK7311 

BK7394 

BK7395 

BK7382 


. '«  m.'m  *#•■■■» 


Am 

m 

197 

m 

438 

» 

224 

486 
104 

136 

203 

196 
179 


311 
90 

79 


80 


+  ■««+' 


.IB,  121 

i   V    tl    Hi   « V  I 


Mailing  Uats  ««.«*« 
Ilovbig..... 
Subscflfittofts  ........... 

Saba^Sa  Expod  Corp, 

Satefltte  Video  Systems . . . 
SimecCompaity ......... 

Smith  Software  SystHTie  . . 
Specirutn  Cocnmirnications ...  * .  ,©1 
Spectrin  International  J  nc  .....56 

SpkSer  Anienn>a . ...  i ..« ......  *  .^ 


r  .  .  *  nSMt 


f  i'  .  *  t  m.m.m  • 


.  ft  .  ■« 


103 

Hi 

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03 


Teltone  ...... 

Hie  Hanonack  .....--. 

Thompson  Software  - . , . 

Tfiorryx  Industries 

Tucson  Aniateur  Pacfcei  Radio 

Unicom Bectranica  ,,•..*.,, .„29 

UfiNeraat  Amateur  Badki .47 

Unli^efsal  Beclronica,  \nc ,.  ^., .  .100 
UMversily  Microfilms  ..........  101 

Van  Gotileffi  EnQineerifig 64 

Vanguard l^^be  ..,,..,., ^93 

VoCom  Products  Corik. .,...,..  121 
WINNN  Antennae  .....  ,«*.««,103 

Wacom  Producis  . . ....  lift 

Weetcom .,..,,,,,,,,.,,.,.. .  W 

Westech  Electronics^  Ino. 79 

Western  Radio  Eleclronlca 87 

Wfieel«r  Applied  Ro^earct^  Lab 

101 
Williams  RedTo  Sales  ,.*......  101 

Woodall  &  AssocJates 101 

Yaesu  Electronics Coip. . . .  .Gov.  Ill 


Price 
10.96 
10.96 
1Z97 
24.97 
14.95 
29.97 
14.^ 
24,97 
24J7 
24.97 
12.97 
10.95 
12S7 
34  J7 
10^ 


To  Order 


Price 
2M 

1^ea. 
l^ea. 


SNIPPINQ  AND  HAM^ 
DUNQ:  S1.50  for  the  nm 
book.  SI. 00  for  each  add  I* 
tlonal  book  for  US  delivefy 
and  foreign  surface, 
S10.00  per  book  for  for- 
eign alrrnal).  Orders  pay- 
abla  In  US  dollars  only. 

Complete  the  postage 
paid  card,  or  itemize  your 
order  with  payment  or 
complete  credit  card  In- 
formation (ir>clude  post- 
age and  handlir^  to:  WQ 
Books,  ATTN.  RetaH 
Sales,  Rte.  101  and  Elm 
S1-,  P&tertxiroiii^  NH 
03458. 


114  73  Magazine   •  June,  1984 


Evaii»vllt«,  IN  477tt 


WINI! 


IHMaiB^HAaHiABil 


Pnc^M  mnd  Av*i/»tittty  Subtle f  tc  Change 


OPIfC-S*  or  V>^£a  SoftMVff  FmcksQE  C*ll 

¥mrf  L«r9«  >i«i^  dI  AC  A  PfMvclt-  CaK  for  tMK«vnl  PrtcAnit 

HD73<lCf7  14   Iti  Rotitor 
UttO  Smell  Efevaiion  Rotator 
A  MERIT  RON 

AL'80  QSK  Amp 

ASTRQN 

HS7A  fr?  Amp  Fo^&f  S»jpply 

AS^OA  7  ^  >0  Amp  Po^irar  Su^Dly 

R&12A  9^1;?  Amp  PoMrer  S^^pEil^ 

RS20A  1ft  30  Amp  Riiver  Si/ppL^ 

RS20M  iE-aO  Afn^  w^rn«t*r 

RS3&A  ZS3S  Amp 

RS3SM  25  :S5  Amp  w^mvfw 

fESSQA  37  »  Am|] 

RSSOM:  a?  SO  Amp  mmelmi 

AZOeN 

PCS4Q00  3M  mobl'le  rjg 

BENCHER 

BY  1  Piidd\tiBy-2  Chfnme 

eUTTERWUT 

HF6V  BO  lO  Mv^ST  Verlic«l 

GUSIiCflAFT 

A3  TrtbvuSv  3EL 

A4  Tni»nif«r  4EL 

32- 19  Su|M«  BoOfner  t9Ci  JW 

DArWA 

CN-5i20  1  i-OO  MHi  3WfVP«r  Mil 

CN^eaoa  is  ISC  MHzSWRlf>wr  Mir 

CNe^O  l4a-4SCl  MHz  SWRiPwr  Mir    . 

CN720e  1  8- 1 50  MHz  SW  WPwr  Mir .  .  . 

ENCOHM  (SANTEC) 

SdTittt    142    up  -   ^  Ht  r  .    .     *     ■■ 

SafltK   12^  up  -   2?0  Ntif    -     .    . 

S«fitfic   442  up  -  440  Mh£    .         . 

KAt 

cm  200  Cofnpuief  lrTt«f  Ijic4 

Cn  100  Ccynpifter  lnl«rfK« 

Hr^AIN 

TH7  DX3  7Ei  Tfibtndef 

THS  MK3S  3E  L  Tribander 

Explorer  ^4  Tri&ander 

CD45  as  aq    tl   I^alatDr 

Ham  W  15  sq.  rc  Rolatcir 

TZX  20  iq    ft   flotaTOr 

Ff«i  Shipping  on  ■■]  Crinhup  Tow«n 


0%cv  AmiennKS  m  Sloe*  C^l  for  Prrc^a 

KANT  RON  tCS 

TTw  LfH«dl*«  n.  Ifnt  h*mn4  nwm  corapul«<r  trttarfsoi  lof 

CW.    RTTY.    ASCI)     Saftw^rs    A«iilib4«    Iw    V^ClO^   C-M» 

AFfLE.  ATARI.  tfl*OC,  TJW 

AmfoF  Satmrar*  Now  AfBtl*bl« 

KEN  FHQ 

KR-500  Eittviticin  RofAtor  ,    ,    , 

LARSEN  HT 

NiA  1 50  MM5^e  Wivi  £Mnnig 

WFJ 

i22fl  r««»w  Compy1»«  inl«rf#cfi  w^amTO^ 

tW4  Nb  a  Comt  _  i«t  kiMHt  ce  

airr;  Iwr  ^^^^^    iW.OD 

vary  tA»f«  Stock  afiiFJFcwIuel^,  Cam  tot  Dl»CAif\ I  Pitete^, 

MiRjuac 


ligMl 


CoAlr 


S^95,DD 
299. QD 

S37VCn 
225  SO 

S439.00 

I at. 00 

. .  199,00 


44D  «^H;  Amp 

IfCHN   440  MH2  AlTlfl 

8t014  1(K160  AmpfFfttrnp. 

B3014  :}0^i60  Amp/Prrirpip. 

SHU  RE 

444DDe*hMic 

TEN  TEC 

Tl\E  'a^tutic 

10  docar  Tr3n«¥«fior 
15-&  '  Jli  H^r.jn«4{j:     i 
TOM  TO  HY  FOWEH 
l-L  100V  J  r      :  "?OiiV^eamp^ 
h-L  tflOV  I-      ■-  ...   Priwflp 

Hi9oy  laeow  uhf  Amp.p  t  i-^c 

HLoi^  lO^BOW  PreAmp 
HL45y  )0-il5W  (JH  F  Am  p^ie  if 
TAESW 

MO  Cianopyt'er  AieI«*  Kcv*  SySlttti 
FT-7576XSup«frBuy 
FT 726R  Trpband  Xc^r 
FT  ^0^R  Mew  H  T 


si?9.ai 


245.00 

199  00 

1S5.00 


#  lel»phon«  buywt  will  receive  a 
turprite  gtrt  \n  theli  package. 

#  Irvstore  drowtngi  each  hown  Come 
and  reg titer  to  wlnil 

#  Orond  prfie 
for  In-sfore  drowtngr 

IC-02AT 

2-Meter 

Digital  Readout 
Handtield 

#  No  purchase 
necessary  to  register 

^fof  ln-s!ore  drawings. 

#  Special  In-sfore  prtcfng 

#  ICOM  Personnel  to  demonstrate  new 

equipment. 

Refrethmenti  wfit  be  served. 

See  the  new  line  or  COM  equipment 

New  equipment  available  for  your 
Inspection  and  purchase. 


n 
1 


■A- 


1 


Saturday.  JUNE  9 ,  1984 
9:00a.m.  til  5:00p.m. 


ICOM 
DAY! 


Send  SASE  for  our  new  &  used  equipment  list 
MON'FRI  9AM  6PM  *  SAT  9AM  3PM 


ICOM,  WILSON,  KENWOOD 

and  MAXON  Cprnmerefal 

EqiilpmenI  Avatlsbte 


USED  EQUIPMENT 


This  list  was  compiled  4  it  a4  Our  used 

equipment  changes  daily.  Please  write  or 

call  for  our  current  listing. 


llAollO^«^ 


Spkf 


AEA 

mrm  rewseh  .... 

^       +      1 

.   IIZS^DO 

ASTRON 

R5  71  T  «»p  p.$.      ,    . 

.■      ^      * 

.   t  39.00 

AZDEN 

PCnOOO  2  wtr     .    .    , 

.    1209.00 

PCS  2100  10  mtr  .    .    » 

.     175.00 

DENTRON 

HLA  35DD  w/10  mtrs,    » 

.    $549.00 

GLA  10006  w/10  mtrs   . 

.      269.00 

WT  3000A  Tuner     .    .    . 

.      225.00 

MI  ZOODA  Tuner     .    ,    . 

.      159.00 

Super  Super  Tuner   ,    , 

.     119,00 

DRAKE 

TffTT?^ 

.  test).  00 

R7A  RCVR      ..-.,. 

.1,025.00 

RV?   VFO        ,.,.,, 

.       89.00 

WS7  Spkr      ...... 

35.00 

7077  Desk  Mic    .    .    .    , 

35.00 

TR4,   RVa,  AC4    .... 

.      340, 0& 

TRB,  RV6,  AC4   ,    ,    .    , 

.     399,00 

T4X»  ft4A,  AC4,  MS4     . 

.      3Z5.O0 

m  2000  Tuner  .... 

.     179.00 

ENCOMAI 

Stn  li^Hhz    ..... 

.  S!S9.00 

HAL 

nt?ao,  RBzioo    .  .  , 

S675,00 

HEATHKrX 

^77^  rm.  Amp  .    ,    . 

$550.00 

SeiQ4A,  CM,  f.S.,  Spkt 

p     .    .    , 

389.00 

SB634  Console        .    ,    . 

99,00 

SB! 02,   PS,  CW       ,    .    . 

325.00 

HW101,   PSp  CW       ... 

.   as9,oo 

HW101,  PS,   Spkr  ,    .    . 

.     250.00 

S8630  Console  ^    .   .    . 

69.00 

S1600  Sptr     .   ,    .    .   , 

25.00 

SA2040  2KH  Tun«r     .    . 

U9,0fl 

HW2G3€  2  Htr     .    .    ,    . 

!00.00 

PSiflOO  P.S.,  Sptf,  Clocks    .    , 

169.00 

HWa  ORP  Kcvr     *    .    .    - 

*       *       i        » 

BS.OO 

SBlOl  .   PS.  CH  .    .    .    , 

.        .         *         i 

225.00 

FLlt4 


(COM 

751   OeLuite  Xcvr   . 

720A,  cv.  m 

740  Xcvr     .    .    .    « 
740,  Kc:^r      .    .    . 
740,   Interna!   p^s. 
740,   Internal   **.S, 
3AT220rttK2       .    .    . 
251 A  2n  All  Mode 
245   I  Mtr       .    .    . 
SM-2  Desk  Hie   .    . 
HM*8  T.T.   Mic  .    , 
AG*1   UHF  Pre  Anp 
KANTRONiCS 
The  Interface  ,   . 
Vie  20  NdMiext.    . 
Vfe  20  Namtoft      . 
TRBO-C  HafBsnft     .   . 
KENWOOD 

TR-5130  AH  Mode,  T.T 
Ts  azos  ,   .   .   ,   , 

TS  820     

TS990,  R599D     .    , 
TS7Q0  Sp,  VFO 
SP  70  Spkr     .    .    . 
AT   130  Twfier      .    . 
TSS30S,  CM     ... 
TR2400,  Clip,  Extra  B.P. 
SWC-24  Spkr/mc   . 
ST-1   Base  Chgr     , 
MC30A  Ldv^  Z  Hie  , 
RM76  Remote       ,    . 
SC'5  DC  Chqr     .    . 
YG455C  SOOHz   (630) 
MFJ 

T?5"Super  Heyboard/fitty 
1224  Interface  .  •  .  , 
721  SSB/CW  Fnter  ,  ,  , 
CWf-a  Filter 


*  I 


Hie 


-t 
I    * 


«   * 


11,050.00 
.  689.00 
.  S99.00 
.  629,00 
.  699.00 
.  789, 00 
195.00 
.  399.00 
.  169,00 
.  29,00 
,  40.00 
.       59.00 

,  I   79.00 

.       70,00 

.       35.00 

4S.00 

.  $365.00 

.  1539,00 

.  489.00 

,  450.00 

,  499,00 
24.00 

.  9S.00 

.  525.00 

.  179.00 

-     es.oo 

.  59.00 
20.00 
=  50,00 
.  25.00 
.       65.00 

.  1199.00 

.       70.00 

40.00 

.       25.00 


SWAN 
Astro  150 
700c)c,  P.S, 
TEN-TEC 

OMNNCyCW 

OMNI-D/B      

Delta,  NJ,  .  ,  .  ,  . 
Triton  IV.  CM,  N.6.  . 
Argonaut  (509)  .  .  . 
215  P.S. /Spkr  .... 
2BZG  P.S. /Spkr  .  ,  . 
225  Argosy  P.S.    ,    .    . 

¥fo  *   Del  t J 

234  Processor  ,  ,  , 
208  Filter       .      ... 

1A  P.S 

645  Keyer   ...... 

YAESU 

FT-1D2    Xcvr    ,    ,    .    ,    . 

FT*901   DM   .   .    .   .   ,   , 

FT-tOUE/CW 

FT225ftO  All  Node     .    . 

rr30io/FP  3010    .  .  . 

FR6-70OO  Rcvr  .... 
F12100  F  Amp     .... 

FL10T/FR101    

YC  601   Display     .    .    . 
Land  Liner  Phone  Patch 
FT227R  2  Mtr     ,    ,    .    » 

YD  148  Hie      

FT202  H.T , 

PA  3  DC  Chgr     .    .   .   .    . 

XF  30  C  CM  Filter  ,    ,    , 
PF  757  P.S.    ...... 

MISC. 

DiaMd   CNA  2002  Autot 
OiaMa  CNA  1001   Autot 
Panasonic  Camera 
Zoom  Lens       .    ,    ,    . 
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ADVERnS^HG  COPY 

Adyertiming  musl  pertarn  lo  amateur  radio  products  or  services.  No  special 
layouts  or  positions  are  possible.  Alt  adverltsmo  copy  must  be  sub>mitted  type- 
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OEAOUNES 

Cof>y  mual  be  fsceived  in  Petert»o(flugfi  by  the  5th  oMhe  *ecof*d  fr>eH\tfi  pre- 
ceding tHe  cover  iSate.  It  copy  is  rvcaived  after  the!  deadline,  it  will  b«  schedute^ 
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MATOUALS 

Send  to  Adveftisiftg  OapartrrwiTt,  73,  Elm  Stfeel,  Peterborougti  NH  03458. 


MOBILE  lONmON  SHIELDINQ.  Free  litera- 
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Port  Angele&  WA  98362,  BNB006 

WAMTED:  Cash  paid  for  uted  SPEED  RA- 
DAR  EQUIPMENT.  Write  Or  call:  Brian  R 
isterman,  PO  Box  ai4t,  Mocthrield  IL 
600S3;{3l2}-^t-8dai.  BNBDSg 

MrUTARY  TECHNICAL  MANUALS  for  old 
and  obaol^eti  equl^^ment.  so-page  cata^ogt 
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DRESS  UP  YOUR  CLUBI  Jackets,  toe^ 
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Point  NY  11356.  BNB048 

WANTID— your  unused  Teletype""^  re- 
pair parts,  hijgti  prices  paid!  Send  SASE 
for  Hat  of  Teletypewriter  parts  and  sup- 
piles.  TYPETRONICS.  Box  ea73.  Fori  Lai>- 
dardate  I^L  33310;  (305|-583-1 340  after  tlW 
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WE  ENJOY  creating  ham  plaques,  tro« 
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WANTED:  Pffr1950  TV  sets  and  old  TV 
QUiO^  maga^irws.  W3CHH,  Box  20-S,  Ma- 
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1SS4  WIRi  &  CABLE  prices  cut!!  f  CaJI  Of 
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ICV4/KP2  STATION.  ST.  THOMAS.  Don^ 
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Murray  WA2UZA.  RO  4,  Princeton  NJ 
08540;  (20U3a9^309,  ON  BOSS 

EMEKGENCV  COMMUNICATIONS— An 
Organisational  and  Operational  Hand- 
book, by  K3PUR.  A  complete  referertce 
guide  fo(  ARESfflACES  and  other  putrilc 
sarvica  groups,  as  reviewed  In  Daoambar 
-83  QST  arad  January  ^84  CO.  $995  plus 
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DX    HEADING   HAPS   for   BostOh,   NYC, 


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STATE-OF-THE-ART.  rugged,  Iow*pfoft1e 
antenna  systems.  Helical  designs  from 
3.5  to  50  MHz.  ODRfts  from  144  lo  450 
MHe.  Refer  to  7^  magazine  reviews  In  Oc^ 
tobef  and  Novemt>er,  1962.  Com-Rad  Ir^ 
dustrlae,  25  Imson  Street^  Buffalo  NY 
14210;  (7t«)-773'1445.  BKBdOe 

AMTVSTATIC  DUST  COVERS  BY  Cover 
Craft  CorpofatlQiL  Amateur  radio,  com- 
piitara>  printers,  disk  drives,  VCRs.  Nevr  or 
oldar  models.  Over  1.000  deaigns  in  stock 
and  over  1 ,000,000  la  use.  Call  or  wrtte  for 
brochure.  Birch  Htll  Sales.  PO  Box  234,  Pe- 
terborough NH  03458;  (603}-924-7959. 
BNB097 

FIND  OUT  what  else  you  can  hear  on  your 
general-coverage  transceiver  or  receiver. 
Complete  information  on  major  North 
American  radio-listen Irvg  clubs.  Send  25« 
and  SASE,  Assoc  i  at  I  on  of  North  American 
Radio  Cfybs,  15O0  Bunbury  Drive.  Whlttler 
CA  90601.  BH&09g 

MAQICOM  RF  SPEECH  PROCESSORS- 
Add  6  dB  of  average  output  with  genuine  rf 
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speech  quality,  simple  installation,  af- 
fordable prices!  SASE  for  data  and  cost 
Maglcom,  PO  Box  6552 A,  Bellevue  WA 
98007.  BNB101 

ELECTRONIC  AVOCATIONS™.  Nonprofli 
service  promoting  radio  hobbies  SASE 
Arrtotd  Tirnm,  2308  Garfield  §304,  Minne- 
apolis MN  55405.  6NB1Q6 

FM  SERVICE  MANUALS- RCA,  QH,  Mo- 
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DuMont,  others.  Reasonable^  Send  exact 
modaf  and  description,  L  McLaughlin,  PO 
Box  411,  Mango  PL  33550.  BNB110 

REPAIR,  alignment,  callbfation.  Colllna 
written  eatimata^.  S2S;  non-Cot lins,  S50^ 
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COMMODORE  64  disk  based  ham  SGft< 
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PACKET  RADIO 


ASCII— USA/AX,25 
HDLC  CONVERTER 

USA/AX,25  is  the  AMRAD  approved  digital 
format  STANDARD  used  on  amateur  pack- 
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PAC/NET  board  only  SSO-OO 

Assembled/Tested.  NolGs,90day  warranty 

Package  qI  ail  IC  s  except  2-2716 
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PAC/NET  SYSTEM 


PAC/NET  SYSTEI\rt  $240.00 

System  Tested  4.5  x  6"  board  complete 
with  all  IC  s  and  programmed  EPROMs 
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1  year  guarantee  o*  hardware/soft- 
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at  any  user  baud  rataRS232  HDLC  for  202 
modem  used  for  AFSK  or  direct  lo  RF 
equipment  for  FSK- 


Custom  SyslemB     Custom  Programming 

Bill  AsHBY 

^^  AND  SON  ^J 
K2TKN-KA20EQ  201-656-3087 

BOX  332  PLUCKEMIN  N.J.  07976 


area^  DX«  aiid  alphabet.  Usts  and  eo^nta 
OTHs  or  pfftflxaa.  S25.00  ppd.  STATION 
LOG  &  OSL— 19O0  QSOs/fllalc.  Prints 
"cafda"  foi  I«m  ttwi  ic  a«ch.  $15.00  ppd. 
INFO^SASE^of  send  disk  and  stamped 
ma[ler  for  FREE  OSL  bureau/addresa  label 
program  (approxtmately  2O0  llstlnga^my 
disk,  $7.00  ppd).  Harv  Nebon  KA9KUH, 
PO  Box  736,  Stevens  Point  Wl  544B1. 
BISIB120 

DIOFTAL  DISPLAYS  for  FT*tOta.  TS^HOs, 
Coilllns,  Drake,  Swan,  Heath,  arKl  others. 
Write  lor  IntormaHon,  GRAND  SYSTEMS, 
Dept,  A,  PO  Box  3377,  Blaine  WA  9&230. 
BNBl2t 

WE  COtJLO  run  a  bigoer  md  but  than  our 
pans  would  coat  more.  Duality  pans  at 
sensible  prrc«a.  Si  amp  brings  fly«r.  Mid- 
night Engin^ertng,  RR,  Maquon  IL  $l45fi, 
BNB122 

IMRA~  International  Ml  sal  on  Radio  Asso- 
ciation helps  missionaries  by  aupplying 
equipment  arKi  running  a  net  Tor  therri  datly 
except  Sunday.  14.2S0  MHz,  1900-20DO 
OMT.  Bf.  Barnard  Fray,  1  Pryw  Manor  fid., 
Larchmont  NY  10638,  BNB123 

FOR  SALE  OR  TRADE  ror  Hovica  gear.  B  & 
K  2845  dtgitai  mtftef,  B  a  K  820  capacitOf 
tostef,  Conar255  scope,  Etco  audio  ganef- 
aior.  All  in  excafcteni  cofKlition  and  with 
manuals.  Gerald  Cushing,  817  l&Vi  Avsl 
5W,  MiTiot  ND  587^1.  BNB124 

WANTED:  Model  B0 10  remote  vfo  for  Tem- 
po 2020  xcvr,  Cflll  collect  <9l3)-267  1575  or 
CompuServe  E-mail  user  no.  71336,1270. 
Will  pay  all  shipping  charges.  Tim  Gorman 
WAiLYJp  3758  Humboldt,  Top«ka  KB 
66609.  8NB125 

TEH-TEC  ARGONAirr  515  with  xiat  caii- 
brator,  noteri  fitter,  arwj  fuP  tan-meter 
C0perage  In  mint  oondrtlorv  S395.  Also  Tl 
m4  wtth  Ham£ott  packafa:  S9&  Heathltii 
uMATlC  programmable  Keyer  w/powef 
supply:  SSO,  Heathkit  model  IG-2B  color- 
bar  generator  with  manual:  $45.  Jade  Big- 
Z  4-MH£  ZBO  S-100  CPU  card  with  manual: 
S96.  MIka  Fauikner  N9CBJ,  RR  #2,  Box 
294A^  Yorktown  IN  47336.  BNB126 

WANTED:  aulopatch,  new  or  usod^  in 
good  condition.  No  fhlts  necessary.  KSIIZ, 
Port  RepuUlc  MO  20676.  BNB127 

INTERNATfONAL  lilORSE  CODE  TRAINER 
for  your  Commodore  64  or  unexparxted 
Vlc-20  computer.  Learn  code  or  Increase 
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documentation  4  random  testa  (letters 
only  or  with  numbers)  -i-  adjustable  speed 
(1-26  wpm)  and  pitch  •¥  ability  to  enter  a 
character  and  hear  the  Morse  sound.  64 
version  has  ihese  additional  features:  9 
detailed  step-by-atep  lessons  4  ua«r-de- 
flned  tesia  -f  adlustab^e  volume  and  lest 
length  {1-S  ml  nutaa}.  Vic  vers  Ion:  S6.00  on 
tape  only.  64  version:  $9.99.  tape;  (14.99, 
diskette.  ACaL  Software,  Box  7«  r49«r 
DeriyPA  15671.  BNB128 

ICOM  AND  KENWOOD  OWNERSI  You  are 
daf  mitely  ml&aing  out  If  you  iSo  not  racaive 
our  vary  Informative  newsiatlersl  Fr&e  In- 
formation! Send  SASE  {2  stamps)  to  Inter- 
national RadlO^  Inc.,  364  Ki  I  pal  rick  Ave., 
Port  St.  Lucie  FL  33452.  8NB129 

BUY-SELL-TRAOE  Iwtce  monthly  publtca- 
tkxil  SASE  for  FREE  issue.  The  Ham 
Bona^fdL  364  Kllpatrick  Am,  Poft  St. 
LudtFL  33452.  &NB130 

09CM  10  "^O  DnTER"  Instant  OSY. 
Desolvea  Doppler  and  inversidfi.  Satellite 


116     73  Magazine  •  June,  1934 


AUSTIN. 

When  only 
the  best 


will 


•  • 


f 


Taking  the  feading  role  in  custom  antenna 
design  comes  easily  to  Austin,  With  over  25 
^ears  of  engineering  and  consulting  expe- 
rience,  how  could  we  offer  you  less  than 
the  best? 

And  our  high  performance  solutions  go 
beyond  our  popular  MULTIBAND  antennas. 

There's  THE  OMNI  sidebartder  with  hori- 
zontal and  vertical  polari^^ation.  Or  the  AIL 
BAND  SCANNER  with  high  gain  that 
outperforms  the  competitjon.  And  THE 
STICK,  a  broad  band  design  for  operation 
fronr>  Amateur  to  Marine  frequencies,  just 
a  sampling  of  the  chokes  available. 

Whatever  your  antenna  needs^  tlie  winner 
h  Austin. 


Cat!  or  wrrte  for  product  informatiiori . 
De^EerirrquirJes  fnvfted, 


229 


AUSTIN 
CUSTOM 

ANTENNA 

P.O.  Box  357 
Sandown,  NH  03873 
(603)  887-2926 


BEEPERS  * 


O*  YOB  KAVEN'T  HHILBD  OITB 

YOU'BJB  NOT  LISTEHIHOS 


Whafg  a  BEEPER?  aomffElme&  cUl^  &  ^'oourteey  baep," 
both  FaxBoan  BEEPETie  add  a  gentle  high  fraqueney  beep 
autamatlcally  to  the  beginning  of  eft<3h  transmiflalon  and  a 
low  beep  it  tite  and.  "TaLt-OTer''  is  a,  thing  of  Uie  paatl 
INTROEUCTNG  EP'4  "The  PRO"  BEBFBH.  Tne  PKO  Is 
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automatio  "Slumber  Mode"  for  long  bAijtafy  Ufa  t9V  bat- 
tery required— not  included),  mtieJ  pragrammabl'e  volume 
oontrol  of  th*  uinlque  dOuWe  4^15WP  timeout  warnliig.  No 
BpesJteri  UssB  a  pieso-tainHiJucerl 

Hook-up's  a  snap  with  elElijer  imo<fel!!  Jnteffacaa  to  virtual- 
ly aU  moderr.  gear.  Manufll  BuppUed  with  each  EEBPEIR 
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atandfij^d  4-plrL  Cdnneetopa 
"  B  "    versions  a.™  ths  aam*  aa  abova  but  without  oonnec- 

tora.  Add  your  own  I 
"C"     vafutrHna  are  circuJt-bQaKi  models  for  cufttonn  in- 

BtillaUonfl.  Pffl^eet  for  MpeatarE  or  toulldSnfi  LNtiO 

your  rig 


BEEPERS  ABE  A 
FAXSCAK  EXCLUSIVE! 


BP-4  -  'The  PRO ' "  BEEPER        BP-S '  'The  Ortelnal ' '  BMElpEIi 
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Ohio  refildsnta  add  6%  sales  ta?? 


iFfiXSC^Di 


INC. 


*^99 


CASH  IN  anyour  old 
Channel  Elleinents 


For  the  past  fifteen  years,  ICM  has  bBen 
replacing  original  crystals  in  elements  sent  to  us 
by  our  customers.  Our  crystals  carry  an  unusual 
guarantee  .  .  .  they  are  guaranteed  FOREVER 
when  used  in  the  equipment  for  which  they  were 
designed. 

Upon  receipt,  elements  are  tested,  repaired,  and 
parts  replaced  if  required  to  assure  they  are 
working  properly.  The  crystal  is  installed  and 
checked  for  trimabiJity.  The  output  is  checked  to 
see  that  it  meets  original  specs.  Elements  that 
are  actively  modulated  are  tested  under  load 
conditions.  The  element  is  subjected  to  temp  vs 
frequency  tests  and  compensated  using 
computer  controlled  test  chambers.  After 
compensation,  all  tests  are  repeated  to  insure 
proper  operation  of  the  elennent. 


I 


Please  call  or  write 
for  more  information. 


International  Crystal 
Manufacturing  Co.,  Inc. 

ION.  Lee,  P,0,  Box  26330 
Oklahoma  City.  OK  731 26  0330 

[405}  236-3741 


»^36 


,^K JT^L 


jl4S  L>Oft  Drive  •  DsylCn  OhiD  AUA\B 


■M 


"remote  programming 

Back  in  the  old  days,  repeaters  were  "programmed"  with  diodes.  DIP  switches  and 
custom  wiring.  Then  came  the  microcomputer,  and  the  repeater  was  programmed  in 
PROM,  That  was  okay,  but  changes  meant  a  trip  to  the  hill,  or  to  the  factory. 
(Suddenly  PROM  programmers  were  on  everyone's  wish  list) 

Then  along  came  ACC  with  the  RC-850  Repeater  Controller,  which  is  remotely 
programmable  with  its  own  simple,  high  level  Touch-Tone  command  language. 
Reprogrammable,  non-volatile  Electrically  Erasable  PROM  means  convenient 
reliable  changes  and  no  down  time.  Your  commands  are  even  confirmed  in  voice. 
Now  you  can  reprogram  practically  anything  such  as  ID'S,  autodial  numbers, 
command  codes  and  much  more  from  anywhere,  with  a  Touch-Tone  radio  or 
telephone.  Informative  ID  and  tail  messages,  enhanced  security,  and  customized 
operation  are  standard  features.  No  more  trips  to  the  hill  or  special  equipment  for 
*^one  little  change"  because  the  programming  comes  from  you,  even  white  you  sit  in 

your  favorite  armchair  _ 

Now  our  Version  3  Firmware  supports  remote  programming  with  our  computer 

Interface  option.  Your  home  computer  lets  you  travel  to  the  hill  via  modem  and  reahy 

see  what  alJ  the  talk's  about 
Convenience,  security,  and  a  new  brand  of  custom  tailoring, 

made  possible  by   remote  programming. 
Made  possible  by  ACC. 


I 


The  RC^O  Repeater  Controfler's  autopatch — 
ACC's  solutions  to  old  problems  with  innovative 
state-of-the  art  technology. 


QCC 


Call  or  write  for  detailed  specifications 

10816  Northridge  Square  •  Cupertino,  CA  95014  •  (40S)  749-8330 


^127 


odvonced 
compute! 
controls  Jnc. 


tei 


opsratlon  must.  S3.00  postpaid.  Dave  Gui- 
mont  WB6LL0,  5030  July  St.,  San  Diego 
CA  ©2110,  BNB131 

WANTED:  old  keys  for  my  telegraph  and 
rac^lotelegraph  Key  cotEectlon.  Spark  keys 
(commercial  and  amateur),  Boston  keySi 
3  Ides  wipers,  pre- 1950  bugs  (VlbfopEoX) 
Marti n<  Abornathery,  Shawpiex,  etts-),  On^- 
nj graph,  CflcKet  and  Bunnell  miniatures. 
Neal  McEwen  K5RW,  1128  Midway,  Rich- 
ardson TX  75081;  1-{214)-234'1653. 
BNB132 

C^  OWNERS- Looking  for  POWEB  In  a 
computer  logging  program?  Try  the 
"CONTENDER,"  Features:  2000  entries, 
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complete  log.  Expandable  to  include  all- 
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Ref^rififed  from  fbe  Fedar^t  RB^hiet 


Reimbursement  of  Out-of-Pocket 
Costs  for  Voturtteer  Administered 
Amateur  Radigi  Exaini nations 

AQENCV;  Federal  Comniiiiiica lions 
CommUgion. 

action:  Proposed  rule. 

Summary:  This  document  proposes  to 
amend  the  rules  to  provide  for 
reimbursement  of  out-of-poqket  cogtp 
incurred  by  volunteer  examinerFi  and 
vclunteer  examiner  coordinators  in 
connection  with  Bm^iteur  operator 
License  examinatians.  Cost 
r^eitnbursement  is  necessary  tor  the 
volunteers  in  order  for  them  to  recover 
their  prudently-incurred  expenditures. 
Thfi  effect  of  this  actigji  is  to  propose 
rules  allowing  cost  reimburaernent. 

DATES!  Comments  are  due  by  April  IG. 
1984  and  replies  by  May  1, 1904. 

ADDRESS:  Federal  Communications 
Commission,  Washington.  D,C.  20SS4. 
FOR  FURTHER  INFOHM-ATIOhl  CONTACT: 
Maurice  J,  DePont,  Private  Radio 
Bureau.  Washington,  D,C.  205^. 

List  of  Subjects  in  47  CFR  Part  97 

Radio, 
Notice  of  Proposed  Rule  Making 

Ln  the  matter  oi  reitnbiirRETfiprU  of  out-of- 
pocke^l  costs  For  volunteer  administered 
arndteur  radi[>  exatninatiQnii  PR  Dockit  No. 
34-2&5.  FCC  84-75. 

Adopted r  March  6,  i96i 

Released:  Marcii  9. 1984. 

By  the  Coninii&9,ion. 

1.  Notice  of  Proposed  Rule  Making  In 
the  above-captioned  matter  is  hereby 
given. 

£.  The  Federal  Communications 
Commission  Authorization  Act  of  1983 
[Pub.  L.  98-214:  spproved  December  a, 
19@3|  smendedSecUon  (4)(f)(4)  of  ths 
Communications  Ac{»Mo  provide  for  the 
reimbursement  of  out-of-pocket  costa 
incurred  by  volunteer  examiners  and 
volunteer  examiner  coordinators  in 

118  73  Magazine   •  June,  1984 


connection  with  the  preparation, 
processing  or  administration  of 
examinations  for  amateur  station 
operator  license.  The  American  Radio 
Relay  l^agnCp  Inc.  (ARRL)  filed  a 
Request  for  Agency  Ac  lion  on  December 
7,  1983,  requesting  that  the  Cemmission 
implement  the  legislation  by  amending 
the  rules  by  Order  as  so  an  as  possible. 
Ho  wave  r^  since  this  matter  affects  a 
large  number  of  people  [amateur 
licensees  and  applicants),  we  are 
providing  for  notice  and  comment. 

a.  Our  proposed  rules  would  allow 
both  the  volunteer  examiner  (VE)  and 
the  volunteer  examiner  coordinator 
(VEC)  to  be  reimbursed.  Each  amateur 
radio  examination,  except  the  Novice 
Class, 'is  to  be  admin i^tered  by  three 
VE's.  They  may  he  reimbursed  for  the 
expenses  they  incur  in  administerinig  the 
examinatloriK  LikewisCi  the  VEC  may  be 
reimbursed  for  ita  preparation  and 
processing  of  the  examination.  The  total 
reimbursement  ^m  each  examinee, 
however,  may  not  exceed  14  for  an 
examination.  It  could  be  less  than  that 
amount,  depending  upon  the 
circumstancas. 


' 5#ctiDn  4[f|(4|  WB«  QmAnded  by  adding 
subparagrapii  (J|  as  fotloivi: 

"HI  With  respect  to  the  accepiarcc  of  volunlary 
uncomfHeneated  serviceB  for  ibe  preparation. 
proccrstiAg  or  admlnialratlion  of  examinations  for 
amateur  slalion  operator  llceniei  pursuant  to 
Aubparaj^raph  [A)  or  (B]  oflhii  paTBgraph, 
indtvid'UJiLe.  or  organizaUonB  whict)  provide  or 
(in.nrdinatE  9uch  authibrized  votuitt^er  aervicf^B  JJ^By 
recover  from  e-xamineea  relmburaflmenl  for  oiil-of- 
poc-kef  i;o3ts.  The  tota]  amount  of  allows bl*  coal 
relmburjienifint  p<ar  examinee  ahati  not  excetJ  $4h 
adiupt^d  HnruEilljr  every  [jsnnpiFy  "I  for  c^lB^3;Ra  in 
ihe  Depart meni  of  Labor  Cunuumer  Price  IrnJth.. 
Such  JnctividuBiB  andfic^gaj^isatLonB  shall  maintain 
re-cordfi  of  ant-of-pockel  ijxpcnda tarts  and  atialE 
certify  annuaUjr  to  the  CommisBion  thai  bI]  cosli  for 
wttiich  i-Btmbiirntineilt  wsi  i^bifiintd  w^tt 
necessarily  and  pnddenlly  ijicurred," 

^None  of  the  proposed  ruEcB  applies  ts  the 
examination  for  the  Novice  CIsaj  license.  Sena  lor 
Quldiivaiar,  ihfr  apotisor  ef  the  l«^i9ktiori.  ntated. 
"[tjhe  I egi station  I  am  inlroductnj;  today  Is  nol 
intended  to  have  any  effecl  up^n  the  preienl  novice 
pFdgrum  *    *    *".  Congte$S f final  R&:iord-SePfjterS 
tra?¥k  ?4avember3,  1383. 


4.  We  do  not  propose  to  specify  how 
the  reimbursement  fee  is  to  be  divided 
among  the  VEC  a  and  the  VE's.  Both  the 
VE'b  and  VECa  may  incur  expenses^ 
VEC'b  may  be  reimbursed  for  expenses 
that  they  incur  in  preparing  and 
processing  examinations.  This  could 
include  Ihe  costs  of  printing,  assembling 
and  distributing  the  exame-  In  addiliDni 
a  VEC  may  have  other  administj'alive 
costs  since  the  VEC  is  ri^ sponsible  for 
keeping  records  on  each  e^cartiination 
that  Ss  given.  Postage  is  another 
anticipated  expense  sinte  the  VEC  must 
forward  the  applications  of  auccsasfid 
appticants  to  the  Commission.  There 
may  also  be  costs  for  renting  the 
premises  where  an  exam  is  givenn  A  VE, 
on  the  other  hend>  may  have  cost«  for 
transportation  to  the  site  of  an  exam 
and  perhaps  lodging  expenses.  Ai?e, 
VE's  will  have  poetBge  expenses  since 
they  must  forward  the  applications  of 
successful  applicants  to  Ehe  VEC.  VE's 
may  also  ha va  expenses  for  paper, 
pencils  and  supplies  that  are  furnished 
to  the  applicants.  We  cannot  anticipate 
every  expense  that  a  VKC  or  VE  may 
incur.  The  statute  provides  that 
Expenses  may  be  reimbursed  only  if 
they  are  necessarily  and  prudently 
incurred  by  uncompensated  volunteers. 
Proposed  rule  5  97.36  is  intended  to  be 
flexible.  It  states  thai  the  VEC  arid  the 
VE  both  may  be  reimbursed.  However, 
they  may  determine  how  much  of  the 
reimbursement  amount  each  will 
receive. 

5.  Present  Si  97.31  and  97.507  which 
relate  to  the  VE  and  the  VEC, 
respectively,  provide  th^t  no' 
compensation  from  any  aoyfce  may  be 
accepted.  We  propose  to  amend  those 
sections  to  allow  for  reimbursement  of 
necessi^ry  and  prudent  expenses. 

6.  It  woutd  seem  that  in  most  cases  the 
VE  could  most  conveniently  collect  the 
reimbursement  fee  since  the  VE  and  the 
examine*^  directly  inieracL  Candidates 
initially  submit  their  applications 
directly  to  the  VE's.  However,  in  certain 
oaseSn  a  VEC  may  devise  a  program 
where  the  reimbursement  i$  collected  by 
it  and  then  shared  with  the  VE's  to 
defray  their  out-of-pocket  expenses. 
Varying  conditions  and  practical 
necessities  may  affect  who  collects  the 
money  initially.  Accordinglyn  we  do 
propose  to  allow  either  the  VE  or  the 
VEC  to  collect  the  fee.  In  the  interest  of 
flexibility,  we  will  leave  that  to  the 
VECa  and  the  VE's  to  determine. 

7.  The  amount  of  reimbursement  from 
each  examinee^  which  may  be  less  than 


the  statutory  M  but  may  not  exceed  that 
amount,  will  be  a  reimbursemetit 
amount  that  is  associati^d  with  one 
applic^tJoQ.  One  application  may  rfisult 
in  a  telegraphy  e>cam  and  one  or  more 
written  exam  elements.  All  those  tests 
will  be  covered  under  one 
reimbursement  amount.  However,  once 
the  application  is  acted  upon  by  grant  or 
by  dismissal,  the  reimbursement  amount 
IS  final  If  an  examinee  fails  an 
examination  and  later  submits  a  new 
application,  a  new  reimbursement 
amount  may  be  collected. 

a.  As  authorized  by  the  legislation,  we 
propose  to  allow  the  amount  of 
reimbursement  to  be  adjusted  for 
inflation  iivery  January  1  as  reflected  in 
the  Department  of  Labor  Consumer 
Price  Index.  The  new  inaximum  would 
be  stated  annually  in  a  public  rustics. 

9.  If  fees  are  charged,  both  the  VE  and 
the  VEC  would  be  required  to  maintain 
records  of  out- of -pocket  expenditures 
and  certify  annually  to  the  Commission 
that  all  costs  for  which  they  obtained 
reimbursement  were  necessarily  and 
prudently  incurred.  We  would  cancel 
the  agreement  that  we  have  with  a  VEC 
if  the  VEC  recovered  more  than  out-of- 
pocket  costs.  Such  cancellation  is 
provided  for  in  §  97.511  of  our  present 
rules.  Section  97,33  provides  that  a  VE 
will  be  subject  to  appropriate  sanctions 
for  recovery  of  any  amount  in  excess  of 
that  permitted. 

10.  We  believe  thai  reimbursement  for 
expenditures  will  make  the  program 
more  attractive  to  volunteers  and  more 
effective.  We  will  continue  to  administer 
some  examinations  in  our  field  offices 
and  at  a  few  remote  points  In  1984  until 
such  time  as  the  volunteer  program  js  in 
place.  However,  our  resources  for  this 
work  are  very  limited.  We  wish  to 
implemeni  the  volunteer  examination 
program  as  soon  as  possible  for  the  good 
of  the  amateur  community.  Therefore, 
the  comment  period  will  be  30  days. 
with  reply  comments  due  15  days 
thereafter.  Requests  to  extend  the  time 
for  rtlmg  comments  or  reply  comments 
are  discouraged  and  will  not  be 
routinely  granted, 

11.  For  purposes  of  this  non-re&tricted 
notice  and  comment  rule  making 
proceeding,  members  of  the  public  are 
advised  the  ex  parte  contact  are 
ptsnnilted  from  the  lime  the  Commission 
adopts  a  Notice  of  Proposed  Rule 
Making  until  the  time  a  public  notice  is 
Issued  stating  thai  a  substantive 
disposition  of  the  matter  is  to  be 
conatdered  at  a  forthcoming  meeting  or 


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See  List  of  A dvef  risers  on  page  }14 


73  Magazine   •  June,  1984  119 


until  a  FmAl  Order  dispensing  of  the 
matter  Is  adopted  by  Ihe  Conunission, 
hhicfaflver  it  earEier  In  general,  an  itx 
ptirt^  presentafioii  is  any  written  or  oral 
communicalion  (other  than  formal 
wntten  cotfimenta/plcftdings  and  Formal 
oral  ftrgumi^ntf)  between  a  per^nn 
nutsldf  the  Commission  and  a 
Commiiigioner  or  a  member  of  the 
CommiAsiori^  ttdfl  which  addresses  thr 
menti  of  lh«  proceeding.  Any  p&toa 
wh{)  submiTi  a  ivritten  ex  parte 
presentation  muet  *erv«  a  copy  of  that 
presfinlaliDA  on  the  Commmion's 
Secretary  for  indu^iDn  in  the  {lublic  &le. 
Any  person  who  makes  an  oral  ex  partfi 
pteftentaiion  addressing  maltf^rs  mi\ 
fully  cQvrrcd  in  any  previausly -filed 
written  comments  far  the  proceeding 
must  pre  pure  a  writ  If  n  summary  of  the 
pr^^entmiom  oa  the  duy  vi  the  oral 
pres^t^ntiition^  thai  wnUen  summiai^  mtysi 
be  strrvL^d  on  the  Commission's 
Secretary  for  incluiiion  in  the  public  fiic^ 
wslh  a  oapy  it>  the  Commission  ofUcial 
receiving  thft  oral  preaentatjon.  E^ch  ev 
parW  pru^entaUan  mu£[  also  9(at«  by 
docket  number  the  proceeding  to  which 
It  rfilat&s.  Sa:e  ganeruUy.  Section  1.1  E31 
of  ihfl  Commiffsfon's  RuleSf  47  CFR 
1.12^1.  A  tiummary  of  the  Commissjon's 
pfocfidurcs  governing,  ex  parte  contitcta 
in  informal  rule  makings  is  available 
from  the  Commission's  Consumer 
Assistance  Office.  FCC  Washington.  DC 

12,  Authority  for  issuance  of  the 
Notice  b  contained  in  Sections  4{L)  and 
aOQfrl  of  the  Commiifsications  Ad  of 
1934.  lu  imcnded  47  US.C  I54(i}  and 
303(rV  Pursuant  lo  applicable 
prfitcedurei  set  forth  m  §  1.415. 47  CFR 
1-415,  of  ll)«  CommLE«ion's  Rides. 
lnlCTe!Sted  persons  may  lUe  c*jinmeTita 
cm  or  before  Apni  16,  39S4  and  reply 
Cdnunents  on  or  before  May  1. 1984,  All 
lelevant  and  timely  comments  will  be 
GOOJ ideted  by  the  Comzm^iun  before 


final  aolion  is  lak^n  in  thia  proceeding. 
[d  reaching  its  decision,  the  Commission 
may  take  into  consideration  irLformution 
and  ideas  not  contained  in  the 
comments,  provided  that  such 
infi.«rmation  or  a  writing  in dka ting  the 
nuiure  and  source  ofstjdi  information  li 
p Laced  in  the  public  &le,  and  pro vi dad 
that  the  Fact  of  the  Commission 'i 
rehance  on  such  information  if  noted  in 
the  Report  and  Order. 

13,  In  accordance  mlh  f  1419  of  the 
Cotunti^ion's  Ruks.  47  CFR  1. 4 1 9, 
formal  participanta  must  file  ait  original 
and  five  copies  of  their  comments  and 
other  materiab'  Particf pants  who  with 
each  Commissi  oner  to  have  a  perfonal 
copy  of  their  (raiments  should  File  an 
original  and  eleven  copiea.  Members  of 
the  general  public  who  wish  to  eitpresa 
their  interosl  by  participating  informally 
may  do  so  by  submitting  one  copy.  All 
comments  are  given  the  tame 
consideriition,  regardless  of  the  number 
of  copies  submitted.  Each  set  of 
comments  must  slate  on  its  face  the 
proceeding  to  which  it  reUies  (PK 
Docjkel  Number}  and  should  be 
submitted  to:  The  Secretary,  Federal 
CuoimufiicEi lions  Commission, 
Washington,  O.C,  20554.  All  documenli 
will  be  availsble  for  poblic  inspection 
during  regular  business  hours  in  the 
Commission's  Public  Reference  Room  at 
iif  headquarters  in  Washington.  O^C 

14.  En  accordance  with  Section  Q05  of 
Ihe  R(?guIatory  Flexibibty  Act  of  1000 
{S  US.C  606),  the  Commifsici}!  certifies 
that  these  rules  would  not<  if 
promulgated,  have  a  significBnl 
economic  Impact  on  a  subslantial 
number  of  small  entities.  becaiiMt  these 
entitiei  may  not  use  the  Amalenit;  Radio 
Service  for  commercial  radio 
communication  Isee  47  CFR  97.3  [h))  and 
because  these  rules  would  have  no 
Foreseeable  impact  on  manufacturers  of 
Amateur  Radio  Service  equipment 


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15.  The  request  for  agency  action  filed 
by  the  ARRL  is  granted  to  the  extent 
that  it  requests  roles  to  imptement  the 
legii^lation  which  permit  reimbursementi 
of  volunteers  who  admin  is  ier  or 
coofdhiate  Amateur  Radio  enaminalioni 
and  is  denied  insofar  as  it  requesti  that 
such  rules  be  adopted  without  notice 
aiid  opportumty  for  public  GOirtmenl. 

le.  it  is  ordered*  That  the  Secretary 
sha^l  cause  a  copy  of  thii  Notice  to  be 
served  upon  the  Chief  Couniel  for 
Advocacy  of  the  Small  By^inesi 
Administration  and  thai  the  Secretary 
shall  also  cause  a  copy  of  thia  Notice  to 
be  published  in  the  F^^erat  RegislSTp 

17..  For  Infonnation  conct;mmg  ihij 
proceeding,  contact  Maurice  J=  DePont. 
Federal  Communicatiofi  Commisajun. 
Private  Radio  Bureau^  Washington.  D.C 
a05&l.  (202)  332-4964, 

Federal  Conununicatinn  CkimintBticin. 

WmUm  |.  Tiicvrico, 

Secr&iary. 

Appendix 

PART  97— [AMENDED] 

Pari  97  of  Chapter  t  of  Title  47  of  iho 
Code  of  Federal  Rcgulalion»  b 
amended^  a$  fQllows: 

1,  Section  97.3lLc}  is  revised  to  read. 
BS  follows: 

4  97.31     Voliitrrte^  eKamhier  requfrefrrcriliL 

(cj  Volunteer  examiners  may  not  be 
compen&aled  for  services.  They  may  be 
reimbursed  for  out^f-pocket  expenjies. 
ei(cept  for  Novice  class  ex-aminanons 
Jsee  I  97.36} 

*  *  m  m  * 

2.  Sectioit  97.33  is  revised  lo  read,  at 
follows: 

|»7^3    Voaufite«r«x»niii«f  conduct. 

No  volunteer  examiner  shall  give  or 
certify  any  exaoMnaLion  by  fraudulent 
means  or  for  monetary  or  other 
consideration.  Violation  of  this 
provision  may  result  in  the  revocation  of 
the  fimaleur  radio  station  license  and 
the  suspension  of  the  amateur  radio 
operator  license  of  the  volunteer 
examiner.  This  does  not  preclude  a 
volunteer  examiner  from  accepting 


reimbursement  for  oul'Of- pocket 
expenses  under  |  97-36,  Recovery  of  any 
amount  in  excess  of  that  permitted  may 
result  in  the  sanctioni  speciHed  hereirz. 

3-  New  section  97.36  is  added,  a 9 
follows: 

S  97,36    RcarttHifieinant  for  *A{»fi4«, 

(a|  Each  volunteer-examiner 
coordinator  and  each  volunteer 
examiner  may  be  reimbursed  by 
examinees  for  out-orpocket  expenses 
IncitiTed  in  preparih^  processing  or 
admimsteritig  examinations  for  amateur 
station  opierator  licensei  above  the 
Novice  Class,  The  volunteer-examiner 
coordinator  or  the  volunteer  examiner 
must  collect  the  reimbursement,  if  any, 
from  ihe  examinees.  No  reimbutscmenit 
may  be  accepted  fur  prepanng, 
processing  or  adminislering  Novice 
class  examinaliona. 

[b]  The  maximum  amount  of 
reimburse  men  I  is  £4  DO  and  will  be 
adjusted  annually  tach  jiinuafy  1  for 
changes  in  the  DepiirlmiCint  of  Labor 
Consumer  Price  Index  and  announced 
by  the  Commission  in  a  Public  Notice. 
The  amount  of  such  reimbursement  from 
ary  examinee  for  any  examinotton  or 
series  of  examinations  related  lo  a 
single  application  must  not  exceed  the 
published  maxim um^ 

fc]  A  volunleer-examint^r  coordinator 
or  volunteer  examiner  who  accepts 
reimbur^emenl  must  maintain  records  of 
the  out-of-pockei  expenses  and 
reimbursements  and  musl  certify 
annually  to  the  Commission's  office  in 
Cettysbiirg.  PA  17325  thai  all  expenses 
for  which  reimbursement  was  obtained 
were  necessarily  and  prudently 
incurred. 

4.  Section  97.5(Fte)  Is  revised  to  read 

as  follows: 

}97.M»7    VEC  qualttiutions. 


(e)  Agree  not  to  accept  any 
compensation  from  any  source  for  ill 
services  as  a  VEC.  except 
reimbursement  for  out-of-pockel 
expenses  permitted  by  |  §7h30;  and 


MM  HELP 


Can  anyone  please  advise  n>e  who 
would  have  service  data  on  file  of  for  sale 
on  the  sets  macte  for  the  US  Go^fimmsiYt 
for  WWil— Aniiy  SiQoaJ  Ckirpa  and  US 
Navy. 

F.  Kfant2 

100  Osage  Ave. 
fiORMirdale  NJ  OdOas 


111  omtJcrU^ 

Swan  350. 


Model   14-x  dc  module  foe 

Kurt  n.  Frttsch  WAaTOV 

7e&2-1D3  Amaricani  Circle 

Glen  Bumje  MD  2iOei 

(301^766-7003 


Need  lots  of  help  on  how  to  FM  the  re- 
ceive on  the  Drake  TR-3  or  TR-4,  Informa- 
tion and  schennatJos,  If  poaalble. 

Bob  King  WDBPLH 

7000  Blackahtar  Orivt 

Huber  Heights  OH  464^ 

1  am  looking  fof  Infonnation  on  {and  to 
buyl  a  National  NCU^  l004(Hs  call- 
bratof. 

JoMph  Karr  KASRKD 
RZBo«S»1 

Ulwwtiw  Afl  72S42 


I  need  information  ofl  i  VIP  switch  for 
an  loom  £28. 

David  £.  Ouigitana  K2liTW 

1 15  to*  Roblas  Stmat 

Wllllamsviile  NY  14221 

i  need  thd  owrwf'a  and^or  servtce 
m.anua1  for  the  Gladding  25  2^met«r  FM 
trans^ivw^  1  will  buy  or  pay  any  ex- 


John  K.  Cox  KAIZIi 

161 S  Wood  Avenue 
a«irlir>g1on  NC  2721S 

Wanted:  Someone  knowledgeable  (and 
with  the  necessary  lost  equipment)  who 
Oas  bijlli  tha  aatoiHte  recslvof,  'Tite 
Receiver  IV,"  featured  in  ^5  during  March 
through  June,  1982-  I  need  my  receiver 
aligned  and  evaluated  ind  lack  the  proper 
test  equlpmont  and  antenna  to  do  tha  Job. 
I  would  be  willing  lo  pay  UPS  charoee  both 
ways,  but  due  to  being  tola  Fly  disabled 
and  on  a  fixod  income,  I  cannot  afford  a 
lot  In  the  way  of  other  charged. 

Thanks  a  lot. 

Jotin  W.  McCuife  K7ZVP 

PO  Sox  577 

Shorn  Low  AZeSSOt 


ISO  73  Magazine   «  June,  1984 


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t^See  LiSt  of  AdvBritsefs  on  page  114 


73  Magazine  •  June,  1964    121 


international) 


from  pagB  7^ 

OSO,  and  \  give  Gerald  5/1  and  he  gave  me 
S/2.  Gerald  told  me  thai  Ke  was  using  a 
simple  V^MvavQ  antenna  jusl  above  ttia 
roof.  Latat  on,  I  shut  down  tto  $eat4on  and 
want  to  t>ed.  I  toolt  two  i ablets  of  p^inkiil^r 
10  relieve  my  headaeha. 

I  was  supposed  to  call  my  frle«Ki  ^n  Kola 
KinaJMlu,  eMSMH,  ai  about  1930  local 
time,  but  by  than  1  was  faflfiH}  too  cold  to 
be  active  agaJa  Tltarft  waa  no  light  in  tlw 
shetiaf.  W«  started  a  fire  in  tha  fireplace. 
tKit  it  died  very  fast  becausa  thora  was  not 
«naugh  wood.  I  ffnally  aiapi  at  about  2CPD0. 
I  was  told  that  tt>a  tetriperature  at  Panar 
Uban  waa  aboui  S"  C  and  it  was  a  boy  I  2^ 
C  at  the  peaiiu 

AI  abovi  0100  the  next  day.  avwybody 
woke  up  and  had  some  canned  inatafit 
noodles  and  waim  coffee  We  started  to 
climb  to  \nt  p^ak^  2300  feet  tiigt^ef  at 
13,456  feet.  It  had  be«n  raining  during  t^» 
night.  Si  rice  il  waa  aiili  darK,  f  used  a  tcrch 
llghl  att  the  way. 

We  made  anoltw  stopover  at  Panar 
Lat>an  befora  going  down  to  ttie  National 
Park,  and  I  tiad  another  QSO  ttiat  morning 
from  Panar  taban. 


THE  NETHERLANDS 

H.  J-  Q.  Meermsn,  Jr.  P£m}DV 
Zendvoonerweg  33 
2111  QRA^rdenhout 
The  Netherisnds 

THE  DUTCH  PREFIX 

fn  an  earlier  articte,  I  told  you  about  ttie 
different  licenses  ir^  Hofland:  the  A  II- 
cense  for  all  bands  and  all  rrKxles,  tha  B  II* 
cense  for  CW  on  some  HF  bands  and  all 
modes  on  28  MH2  and  hifihttr,  Ifie  C  II* 
cense  for  all  modes  an  144  MHz  ami  hlgn- 
er.  arHd  the  0  license  *or  FM  on  two 
meters. 

You  ean  recognliJB  m  atotkon's  t^cense 
clft^s  by  Hs  prefix  iw'Wb  seme  except  tons). 
In  general,  license  class  and  prefiit  are  as 
f  of  tows:  A— PA§.  PAZ  PA3;  B— PB*;  C— 
PA*,  pee,  PE1;  D— POU-  Club  stations - 
PI4;  Repeaters— PI3. 


On  ttti  kvay  to  P^rtar  Loimn.  Lstt  to  right  ismaii,  mysBit,  Ahatiiah,  Teddy,  and  Syfv&stBr. 


PI4NLB 

This  callatgn  Is  from  ttie  VERON  club 
station  In  the  region  NorthLimburg.  H  Is 
on  the  air  evsTy  Sunday  mom  in  g  from 
1 100  till  12D0  arc  on  1 45.350,  on  FM,  wltli 
rtgtonat  news  items,  in  the  future,  they 
will  add  some  more  frequencies. 

THE  DUTCH  QSL  BUREAU 

ttwaddrees  of  the  Dutct)  OSL  service  ia 
PO  Box  330,  6600  AR  Arnhem,  Hie  Nether- 
larkds.  This  Dutch  DSL  Bufieau  {DOB) 
9ends  att  QSL  cards  from  the  memt>ers  of 
the  VERON  arid  VRZA  {the  major  societies 
In  HoUand)  to  every  comef  of  the  world. 
They  collect  the  OSI3  wh^ch  are  ^received 
at  PO  Box  330  and  spread  tri^in  among 
their  members  again  This  gigantic  ser- 
vice Is  free  for  hams  ancf  SWLs  who  are 
tnambers  of  ttve  eariief -named  clubs.  AH 
ttie  work  it  dOfie  by  volunteers  and  tfi^ir 
families  In  (heir  spafe  tima 

This  year  the  DOB  hartdlad  1J5  million 
cards!  I  thlnle  tl^t  is  a  magic  numb«ri 

THE  HISTORY  OF  OM  H.  J.  JESSE 

The  lUilw  JMte  may  say  nottiing  to 
you,  but  let  me  tett  you  the  story  of  this  re- 
markat>le  Dutchman.  We  go  t3«^  to  the 
year  1923,  on  Itw  winler  night  of  Decerrv 
ber  26  Mr.  Jesse  was  the  man  wtio  made 
the  first  contact  with  the  States.  He  used 
then  the  call  PC1t 

A  E most  every  pari  of  his  trartsmitter  was 
homemade,  because  at  thai  time  shops 
where  you  could  go  for  radio  parts  were 
r>ot  at  hand.  To  isssmbie  a  radio  transmit^ 
tsf,  high  technical  krrowledge  was  re- 
quired. 

Back  In  the  1  wen  ties,  radio  amateurs 
like  Mr,  Jesse  had  no  stetus.  I^e  couldn't 
get  a  licence,  and  therefore  his  technical 
achjevemems  were  illegal.  After  his  ex- 
periments, he  was  prosecuted  by  the 
authorities,  and  when  hta  matter  came  to 
court,  everyone  was  so  thrilled  by  his 
achievements  that,  although  they  found 
him  guilty^  they  did  not  lay  any  charges  on 
himl 

Lest  year  in  December,  it  had  beeri  sixty 
years  since  this  pioneer  had  hie  contact 
with  the  Stales.  For  this  occasion,  Mr, 
Jesse  was  granted  a  fuii  llcenaej  his  call- 
sign  la  now  PA0C11. 

I— and  many  hams  with  me— hope  that 
Mr.  Jesee  makes  use  of  this  license,  be- 
cause who  wouidn^i  like  to  h^ve  a  QSO 
with  such  e  rsmarkabte  man? 


^^    «fl 


At  tff  Ptn»r  tsMn  tfi§it§r>  about  17Q0  focai  time,  with  the  Siim  Jim  at  my  right. 

122     73  Magazine  •  June,  1984 


NEW  ZEALAND 

D-  /  Ctiaprntfi  Zl^Vf^ 
459  Kmfi§dy  BOBd 
Napim 
NwmZ—lar^d 

U«t  rr>or^th  I  f  initlwd  the  section  of  the 
column  0f>  iVitlOnai  Field  Day  activities  in 
ZL  with  •  mention  of  the  usual  weather 
condttions  expected  ai  that  time  of  the 
year  (February).  How  wrong  I  waat 

National  Field  Day  dawned  to  steady 
rain  that  had  be«n  falling  from  the  early 
houfS  of  Satufdfty  morning.  The  sarrw 
w«atfwrwis  prtdominant  tlwouclioul  the 
wttols  country-  The  rain  continued  for 
•tout  12  houra.  eaaing  ^uat  before  the 
OOftlMt  b«(|a/i  it  1S00  houra  ZL  time.  So. 
U  you  can  imagine,  tfwre  were  many  very 
wet  and  miserable  FD  operators  tn  action 
this  ywir.  A  typical  FD  sltuslion  was  as 
foliowt: 

Arrive  it  the  site  s^ut  10  am  ZL  time  In 
fairly  heavy  and  steady  rain,  to  commence 


setting  up  the  station.  The  first  fobs  are  to 
set  up  the  station^s  shelter  and  locale  the 
portable  generator.  No  doubt  afi  outdoor 
types  have  attempted  to  put  up  tents  in 
the  wet;  quite  a  formidat>ie  taak.  especial- 
ly as  the  wind  had  just  begun  to  get  up  a 
bit  However^  after  much  difficulty,  the 
shelter  is  erected  and  the  two  tents  )olned 
together  with  an  access  passage  in  case 
the  raln«>r\tlnues  all  through  the  FD  oper- 
ating period.  Meanwhile,  a  second  team 
has  set  up  the  motor  generator  a  reason- 
able distance  from  the  station  tents^ 
placed  a  canvas  shelter  over  the  outfit  to 
keep  the  rain  off  the  motor  and  gerrerator, 
ar>d  made  several  attempts  to  gel  the  rrho- 
tor  running. 

Eventually  ttie  motor-generator  Is  rurv 
up  and  tested,  much  to  the  relief  of  the  FD 
Control ler.  then  shut  down  until  tatef 
when  ttie  contest  is  atKXJt  due  to  start  it  is 
still  ramlr^,  and  now  the  wind  has  In- 
craesed  conaielerabty.  It  w^utd  be  like 
this,  ror  now  It  is  time  to  Iry  to  gtt  ttit  an- 
tennas up  in  the  trees.  WTiiie  ti^  oth«r 
work  had  been  progressing,  a  small  ream 
had  been  working  to  get  the  lines  into  tf^ 
trees  for  ttie  antenna  supports  These  vary 
from  site  to  atte,  but  everyor^  tries  tor  the 
higtiest  arid  besHocated  at  their  site. 

rmaglr>e  trying  to  get  lines  up  into  large 
trees  in  these  coi>ditione.  Yes,  you  have 
guessed — very  frustfating.  and  there  were 
many,  many  unprintable  words  spoken  be- 
fOfe  the  job  was  finished.  There  are  many 
differeni  methods  used  r^re^  throw  tng 
piM  lines  with  a  casting  rod,  using  a  kite 
ar>d  flying  the  tines  into  place,  using  a 
crosstKtw.  and  having  a  volunteer  "idiot** 
climb  the  tree  with  the  lines,  Nevertht^ 
less,  whatever  method  was  used,  all  sta- 
tions completed  their  antenrta  erections 
in  atrocious  conditions,  with  craditahle 
results. 

At  one  station  I  have  heard  of.  the  wind 
was  blowing  so  strongFy  that  branches 
from  the  TOO  foot  poplars  were  breaking 
off  and  adding  to  the  hazards  of  the  wind 
and  rain,  in  fact,  so  I'm  told,  one  fairly 
hefty  branch  hit  the  FD  Controller's  car 
parked  nearby  and  caused  panel-shop 
repairs  amounting  to  over  $300;  can  you 
Imagine  what  his  XYL  said  when  he  got 
ho  ma  from  Field  Day?  Just  as  well  the 
brench  didn't  hit  any  of  the  FD  team  or 
there  would  have  b^en  graver  problems 
than  one  damaged  car. 

Once  the  antennas  were  weli  on  the 
way  to  being  erected,  then  a  smaii  teem 
began  organizing  the  station  setups  for 
the  SO-  and  4O-met0r  opereting  positiontf 
one  in  each  tent.  When  all  the  cabling  and 
antenna  connections  were  nearty  com- 
pleted,  the  generator  was  again  fired  up, 
the  voltage  adjusted  to  the  load,  and 
some  test  calls  put  out  to  other  FD  sta- 
tions in  a  simliarty  wet  state  to  ourt. 

After  all  seems  well,  the  FD  Coni roller 
allows  the  crew  to  have  lunch  and  to  try  lo 
dry  off  a  bit.  The  wise  ones  in  the  team 
have  brought  a  ehsn{^  of  clothes  and 
towels  to  dry  off  with.  And  while  the  FD 
team  Is  having  Its  first  break  since  10  am, 
the  weatr^er  begins  to  ciaai.  By  the  lima 
the  first  ^X^  calls  ware  put  out.  at  1500 
hours,  the  rain  had  stopped  and  the  wind 
decreased  a  bit  to  rnake  conditions  a  iJitia 
b4t  moia  piaatifit  than  thay  wata  a  faw 
hours  earlier. 

For  the  racdrid,  this  year's  ZL  National 
Field  Day  attracted  about  50  of  the  79  eli- 
gible Branches  into  the  field,  with  some  of 
the  larger  Branctvea  putting  In  more  than 
one  team.  The  numtiar  of  BrandiM  oper- 
ating this  year  was  less  f  han  last  year,  but 
then,  1963  was  WCY  yaar,  and  no  doubt 
there  was  a  bit  of  an  m%Xt%  effort  arid  am* 
phaais  placed  on  last  year's  avani  for  that 
raaaofL  Nevertheless,  tt  was  still  ■  good 
tumoutt  con8Jderir>g  the  atrocious  condh 


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73  Magazine   •  June,  1984  123 


tlofis  during  the  setting-up  perio<S.  As  far 
as  I  can  ascertain,  only  one  tearr  aban- 
doned efforts  b^cau^e  of  the  weather  con- 
dUEona,  and  this  wa$  a  two-man  team,  so 
it  waa  not  too  aurprising. 

1984  saw  the  first  time  that  a  full  YL 
team  operated.  The  "girls"  ware  based  at 
inglewood  in.  a  mobile  motor  caravan,  but 
evan  so  had  to  contend  with  the  wind  and 
ra]n  when  putting  up  their  antennas,  etc. 
Another  FD  group  with  a  difference  was 
the  station  set  up  In  a  focai  school  ground 
by  an  Aucl^land  Branch  as  an  amateur- 
radio  PR  exercise.  Ttva  tents  were  erected 
In  the  middle  of  the  school  sports  field, 
and  there  was  suitable  put}licity  In  the 
local  papers  to  encourage  interested 
locals  to  visit  and  find  out  a  little  of  what 
amateur  radio  Is  all  about. !  haven't  heard 
how  the  response  was,  but  while  weather 
conditions  on  the  Saturday  were  not  good 
for  the  PR  exa raise,  Su ruby's  weather 
was  much  imprcved. 

There  are  always  many  hard  lucK 
stories  from  Field  Day  and  no  doubt  many 
of  these  wItt  continue  to  come  out  over  the 
next  few  months,  but  the  one  I  heard 
about  was  a  real  honey.  The  FD  Controller 
had  been  chastising  his  team,  urging 
them  to  try  harder  and  make  more  con- 
tacts, etc.,  when  it  was  time  to  check  the 
motor  generator  for  gas,  etc.  By  now  dark- 
ness had  set  In,  so  the  Job  had  to  be  done 
with  a  flashlight  (very  difficult  holding  a 
flashlight  and  filling  the  gas  tank  simulta- 
neously) or  by  plugging  In  the  service 
lamp.  Well,  the  FD  "boss"  decided  to  plug 
In  the  senrlce  lamp.  It  had  not  been 
checked,  and  yes,  you  guessed  right f  it 
had  a  fault  caused  by  the  wet  conditions; 
when  plugged  In,  It  upset  the  generator 
and  put  the  station  off  the  air.  Mad  panic! 
Get  the  standby  generator!  Attempts  to 
start  the  standby  failed t  Then  somebody 
dsoided  to  check  the  standby  generator 
for  gas.  The  tank  was  empty! 

You  can  Imagine  the  red  face  of  the  FD 
Cent  roller.  ..he  has  never  lived  that  epi- 
sode down  and  won't  be  allowed  to  forget 
tt  for  many  years  to  come.  The  "off-air" 
parlod  was  about  15  minutes  at  a  prime 
time,  so  It  was  a  bit  embarrassing  to  the 
"boss  man."  Eventually,  the  main  gener- 
ator was  restarted  and  the  standby  motor 
generator  not  required,  but  It  was  ieft 
gassed  up  just  in  case. 

Front  contenders  for  the  FD  contaat 
honors  will  come  from  the  following 
Branch  teams:  Manukau  Branch  ZtlQB, 
near  Auckland;  Auckland  VHF  Group 
2L1BQ;  Napier  Branch  ZL2ABJ;  Auckland 
Branch  ZLIAA;  and  Franklin  Branch 
ZL1GA,  near  Pukekohe,  south  of  Auck- 
land. 

BITS  W  PIECES 

I  am  Including  with  this  column  a  chart 
showing  theZL  band  plans,  which  should 
t>e  of  interest  to  amateurs  worldwide.  Our 
regufatory  body,  the  NZ  Post  Office,  In 
1SS3  delegated  the  fesponslbiiity  for  plan- 
ning  within  the  amateur  bands  to  NZART 
and  amateurs  thsmselves,  and  NZART  ac- 
cepted the  task.  The  band  plans  are  devel- 
0|Md  by  the  Frequency  Management 
Working  Group  (FMWG)  of  NZART,  based 
on  lARU  recommendations  and  local  ra- 
qulrements,  and  all  ZL  amateurs  are  re- 
quired to  observe  the  published  band 
plans  "to  assist  others  to  follow  their  in- 
terests with  a  minimum  impact  on  ama- 
teurs, and  to  assist  amateurs  to  follow 
their  Interests  with  a  minimum  of  impact 
on  others." 

in  Just  over  a  year  from  now,  ZL  ama- 
teurs will  host  tho  lARU  Region  III  As- 
aoclation  Conference  in  Auckland  from 
Novemtier  13-18, 19B5,  during  lARU's  Dia- 


NEW  ZEALAND  BAND  PLANS 

These  plans  help  you  comply  with  the  official  Frequency  Allocation  List:  'The  class  of 
emission  from  an  amateur  station  shall  be  selected  In  the  Eight  of  the  total  available 
bandwidth  for  all  users  and  shall  be  in  accordance  with  current  operating  practice/' 
These  plans  represent  current  operating  practice.  See  C&ffbook  for  designated  frequen- 
cies and  detailed  band  plans. 

All  amateurs  are  reminded  o1  (1J  The  ITU  Radio  Regulations  (Edition  of  t982),  In- 
cluding: 307.  The  band  widths  of  emission  shall  also  be  such  as  to  erisure  the  most  effi- 
cient utilization  of  the  spectrum;  in  general  this  requires  that  band  widths  be  kept  at  the 
lowest  value  which  the  state  of  the  technique  and  the  nature  of  the  service  permit  1804. 
All  stations  shall  radiate  only  as  much  power  as  Is  necessary  to  ensure  a  satisfactory 
service. 

(2)  The  New  Zealand  Radio  Regulations  1970,  Including:  40,  (Not  to  causa  harmful  In- 
terference to  other  stations).  45.  (No  monopoly  of  allocated  frequencies).  147.  (Permitted 
power  limit)- 

(3J  NZART  Current  Policy.  Section  12A,  Band  Plans,  {Break-tn,  page  2,  October,  1983):  d. 
All  radio  amateurs  are  requested  to  observe  the  published  New  Zealand  band  plans 
which  are  to  assist  others  to  foliow  their  interests  with  minimum  impact  on  you,  and  to 
assist  you  to  follow  your  interests  with  minimum  impact  on  others. 


N  =   Narrow-band  modes:  i.e.,  CW 
and  HTTY.  HTTY  operating  Is 
normally  at  the  high-frequency 
end  of  the  segment.  Gsiltook- 
llsted  seical  (RTTY  selective 
calling)  frequencies  should  be 
avoided  by  stations  using  other 
modes.  SSB  phone  may  be  used 
for  Morse  practice  lexta  by 
stations  in  3.53-3.55-fylHz 
segment. 

B^    All  modes  except  MCW  and 
AFSK,  to  a  maximum 
bandwidth  of  6  kHz. 

10=  All  modes  except  MCW  and 
AFSK  to  a  maximum 
bandwidth  of  lO  IfHi 

30=  All  modes  to  a  maximum 
bandwidth  of  30  kHi. 

7=    All  modes  to  a  maximum 
bandwidth  of  7  MHz. 

W  =  Wideband  modes. 

B  =  Beacons:  Transmitting  on  Ca//* 
boo^-listed  beacon  frequencies 
Shouid  be  avoided. 

R  =    Repeaters:  Transmitting  on  Cafl- 
boo^-llsted  repeater  frequencies 
should  be  avoided  for  direct 
contacts  in  their  service  areas. 

S  =    Satel  I  lies  i  n  c  u  rrent  use: 
Terrestria!  contacts  are  not 
recommended  in  the  segments 
£9.3^29.5.  U5.a"l46  a,  435-438, 
1260-1270  MHz  and  on  higher 
satellite-used  frequencies. 

T=    Telecontrol  and  telemetry  only. 


Emission 

Band  (MHz) 

(See  notes) 

1.S-1.95 

6 

3.5-3.55 

N 

3.55-3.9 

6 

7,0-7.03 

N 

7,03-7.3 

6 

10.1 -10J 

M 

14,0-14.1 

N 

14.1-14.35 

6 

1S.06Q-ie.ri* 

N 

10,11-1©.168* 

g 

21.0-21.1 

N 

21.1-21.45 

6 

24.39-24.93* 

K 

24.&3-24.99* 

6 

27.12  ±0.163 

T 

28.0-2B.1 

N 

28.1-295 

63,S 

29.5-2S.7 

10 

50.0-50.1  S 

e 

Amateur  bands 

51  to  440  MHz 

30,8,R.S 

Amateur  bands 

440  MHz  to  13  GHz 

7,B,R,S 

All  amateur  bands 

above  2,3  GHz 

W3,R,S 

When  available. 


mond  Jubilee  year.  This  will  be  the  first 
time  New  Zealand  has  organized  an  Inter- 
national  conference,  and  a  fitting  preiude 
to  the  NZART  60th  Jubilee  to  be  celebrat- 
ed in  1986. 

Silent  keys  of  recent  weeks  Include  Bob 
Robertson  ZL4AC,  originally  4AC  of 
Dunedin,  a  60-/ear  operator,  who  passed 
away  on  Christmas  Eve,  1983.  Also,  Glem 
Smith  ZI^DM  of  Gisborne,  and  Johnny 
Palmer  ZLIKV  of  m.  Albert,  Auckland 


from  feft  to  right,  Jsmes  O'DonnsU  KB4HMO/HP7XJL,  Robeft  tmerick  W4YTM/HPiKR0. 
Dr.  Ernst  Kredel  WA7ARU/HP1XEK,  Ms.  Nors  Cabatt&ro,  h&r  father,  Anhal  Aivsrado,  and 
Sot  Rodg^rs  HPlXRQ, 


PANAMA 

Rob&rt  H.  EmGffak 
W4YTM/HP1XRO 
President,  Canai  Zone 

Amateur  Batito  Association 
PSC  Box  2029 
APO  Miami  FL  34002 

ft  had  been  15  years  since  Ms,  Gabai- 
lero»  a  resident  of  Marshailtown,  Iowa, 
had  left  the  Republic  of  Panama  as  a 
young  child.  In  the  interim,  she  had  lost 
contact  wtth  her  father,  stlJI  in  Panama. 
Hsf  ardent  desire  to  re-establish  contact 
with  her  father  and  to  rediscover  her  Pana- 
manian roots  Inspired  Marshall  town,  Iowa, 
amateur-radio  operator  Fred  Meyer  N0CFJ 
to  try  to  help  her. 

One  of  the  calls  he  made  |ust  happened 
to  t>e  picked  up  by  Jamas  "Red"  O'Don- 
nell  HP1XJL,  Panama  Canal  Commission 
supervisory  power  dispatcher^  tn  the 
home  ot  Occupational  Health  Division 
Chief,  Dr,  Ernst  Kredel  HP1XEK.  Ulte  Fred 
Meyer  ►  Jinn  O' Don  nell  could  not  help  but 
gel  into  the  act. 

Armed  wJth  only  a  name  and  the  infor- 
mation that  Ms,  Cabaliero's  father  had 
tieen  both  a  barber  and  a  firefighter,  Jim 
visited  Panama's  Balboa  Fire  Station  to 
ask  the  firemen  (bomberos)  there  if  they 
knew  of  such  a  nian.  By  chance,  one  had 
heard  of  a  Sergeant  Aivarado  who  worhted 
at  Panama's  international  airport.  Jim 
was  then  able  to  locate  Mr.  Aivarado  and 
establish  that  he  was  Ms,  Cabaiiero's 
father. 

A  phone  patch  was  arranged  through 
HP1XEK  to  a  I  tow  father  and  daughter  to 
speal^,  although  the  conversation  was 
somewhat  Impeded  by  the  fact  that  he 
spoke  no  English  and  she  no  Spanish.  The 
hams  were  thrown  into  the  conversation 
as  translators. 

Before  long.  Mr,  Meyer  and  the  fire  de- 
partment in  Iowa  were  raising  money  to 
send  Ms.  CabaEFero  to  Panama,  In  Pana- 
ma, a  number  of  firefighters  and  ham  op- 
erators were  making  arrangements  for 
Ms.  Catjallero  s  arrive L  These  Inctuded 
Commission  civil  engineer  Tomas  Duque, 
treaty  affairs  specialist  Robert  Emerick 
HP1XR0,  Graphic  Branch  equipment  spe- 
cialist Bob  Rodgers  HPlXfiQ,  Commis- 
sion Fire  Chief  J  aye  DIetz,  and  Republic  ot 
Panama  tiombero  Capt.  Christian  Amhelt- 
er.  Overwhelmed  by  all  their  assistance, 
Ms.  Caballero  said,  "This  is  simply  fantas- 
tic. I  had  no  idea  so  many  people  cared!" 

Ms.  Oaba Hero's  10-day  visit  was  charac- 
terized by  a  whirlwind  of  activities.  She 
met  with  representatives  from,  and  visited 
points  of  Interest  In,  both  Panama  and  the 
Canal  area,  including  the  MIraflores 
Locks  and  other  Commission  facilities. 
But  the  highlight  of  the  tfip  was,  of 
course,  getting  reacqualnted  with  her 
father.  Once  agatn^  ham  radio  brought 


124     TSMagazfne  •  June,  1904 


RAMSEY 
ELECTRONICS 

-^62  Inc. 


PARTS  WAREHOUSE 


We  now  have  available  a  bLinch  of  goodies  too 
good  to  bypass     Items  are  hmited  so  order  today 


2575  Baird  Rd. 
Penfield,  NY  14526 

716-586-3950 


MINI  KITS  -  YOU  HAVE  SEEN  THESE  BEFORE  NOW 

HERE  ARE  OLD  FAVORITE  AND  NEW  ONES  TOO. 

GREAT  FOR  THAT  AFTERNOON  HOBBY. 


iMfiKRUfl 


Call  your  Phone  Order  in  Today.  TERMS: 

SatJ^ifoctian  guaranloed  oi  rnaney  Telunded. 
C.O.D.  add  $2.50.  Minimum  order  $6.00. 
Orders  ij rider  $10,00  add  $1,50.  Add  6%  tor 
posiage,  infiuraric«,  handling.  Overseas  add 

15%.  N.y.  residents  add  7%  tax. 


FM 

MINI 

MIKE 


A  super  tiigh  performance  FM  wire^ 
less  mike  kit*  Transmits,  a  slable 
signal  up  lo  300  yards  wilh  excep- 
lional  ajdJo  quali-ty  by  means  o*  tit 
ttuill  in  eteetret  jnike.  Kit  includes 
case,  mi  he  pn -oft  ^wiTcIt'.  antenna, 
tjattery  and  super  instructions  Ttits 
IS  the  tmesT  Lumt  available 

FM-3KU  $14.95 

FM-3  Wired  and  Te$(ed  29.95 


FM  Wlr«l«A«  MIhe  KE1 

Transnnits  up  to  300'  to 

any  FM  broadcast  ra- 

dfO.    U^es   ^ny   type  o' 

mike.    Runs  on  3  to  9V 

has   added   sensitive   nrtike  prearop 

staqe 


Cotor  Organ 

See  music  come 
alive'  3  ditfereri:! 
lights  fhcker  with 
muS^c  One  liQht 
each  tor  high, 
mid-range  and 
lows  Each  indi- 
vaduaffy  adjust- 
able and  drives  up 
to  300  W  runs  on 
110  VAC 

Complete  kit, 
ML-1 
$8,95 


Vfd«o  Modulilor  Kit 

Converts  any  TV  to  video  moihiHar  Sup*r 
stable  Tunable  over  ct^  4-6  Rufus  on  5- 
tSV  acc-&ptsstd  video  Sfignai  Seslumton 
lh9- marJtaE!   Compl&te  krl.  VO^i        tT.95 


Led  BUnky  KH 

.A  great  attention  get- 
ter which  alternately 
flashes  2  jumbo  LEDs. 
Use  for  name  badges, 
buttons,  warning 
panel  Sights.  arKylhing' 
Runs  on  3  to  15  volts 
Corriplete  kit.  BL-1 
$2.95 


Super  Steiflh 

A  $uper  sen  $  p  I  i  v  e  a  rn  pi  i  - 
fier  which  will  pick  up  a 
pin  drop  at  15  feet'  Great 
for  monironng  baby's 
room  or  as  general  pur- 
pose amphder  Full  2  W 
rms  Output,  runs  On  6  to 
15  vol  Is.  uses  S-45  ohrn 
speaker 
i:>3mp1e!e  ktX,  BN-9 

S5,9S 


RurhS  on  3-i2  Vdc  1  waif 
Al3^ir.  Audio  OsciiialQ^ 


oul  1  KHZ  qood  tor  CPO. 
Compfete  kit  $3.95 


Type  FM-2 


FM-1  kit    I3.9S 


FM-2  ktt     $4.95 


Univertal  Timer  Kft 

Provides  the  tsastc  parts  and  PC 
board  required  to_^  provide  a  source 
of  precisron  timmcp  ar^d  pulse 
generatiar*  U-ses  555  tiitier  IC  and 
includes  a  ranqe  of  parts  for  mosl 
timing  needs 

UT^S  K-JI  $5,95 


Whisper  Ltghl  KH 

An   interesling  kit,  small  mike 
picks  up  sounds  and  converts 
them  lo  light     The  louder  rhe 
sound,   the  brighter  the  Irght 
Includes  mike.  controls  up  to 
300  W.  runs  on  110  VAC. 
complete  kil,  WL-1 
$fi.9S 


Mad  Blaster  Kit 

Produces  LOUD  ear  shattering  and 
alientign  gethng  siran  like  sound 
Can  Supply  op  to  tS*  watts^.  <j! 
obnoxious  audio  Puns  on  6-15  VDC 


Tone  Decoder 

A  complete  ton-e  deco- 
der   on    a    Single    PC 
board     Features    400- 
5000      H^      adfusiabfe 
range  via 20  turn  pot.  vottage  regu- 
lation. 567  iC     Useful  'or  louCh- 
tone    burst    detectfon     FSK.    ptc 
Can  also  be  used  as  a  stable  tone 
encoder     Runs  on  5  to  t?  voMs 
Complete  hit   TD-l       t5,9S 


CLOCK  KITS 

your  o3d  favorHet  dre  here  agA^n.    Over  7,000  Sold  to  Date. 
Be  one  of  Ihe  gang  and  order  youri.  lodayf 

Try  your  hand  Sit  building  the  finest  looking  clock  on  the 
market.  Its  satin  finish  anodized  aluminum  case  looks  gre^t 
anywhere,  while  sjj<  .4"  LED  digits  provide  a  highfy  readabte 
display  Tfiis  is  a  complete  kit.  no  extras  needed,  and  it  only 
takes  1-2  hours  to  assemble  Your  cfioice  of  case  colors; 
silver,  gofd,  black  (specify). 

Clock  kir.  12/Z4  hour.  DC-5  S24,9S 

Clock  with  10  min    ID  timer    12/24  hour.  QC- 10  $29.95 

For  wired  and  tested  clocks  add  $10.00  to  kit  price 

SPECJFY  12  OR  24  HOUR  FORMAT 


SATELLITE  TV  KIT 


Sirvn  Kit 
Produces  upward  and  downward 
warl  characferisiic  of  a  police 
siren.  5  W  peakaodto  output,  runs 
on  3-15  voHs.  uses  3-45  ohn^ 
speaker. 
Complete  kit.  SM-3  $2.*S 


WB-I  Ki( 


$4.95 


£0  Hi  time  Base 

Runrofl  S- 1^  VCC    Hi-*  currp*!!  f£"5rna j  1 
mfp  mo!T|;h:  accuracv  Tfi-?'  kij  !$,$4 


THE  POPULAR  &ATTEC  RECEIVER  IN  KIT  F 


\v\iy  (unable  agdia  ict  fB€OV& 

divide  by  two  PLLdemodu- 

catiold  perFofmance,  lighl 

tfi  asuQ're  dr<fs  Una  reception,  Brun 

I'^i  channel  lunabJe  ccv^r-age. 

'jiiitB  T-'i^  ay*i;#m  arflufld  t^ei  B2B, 

Hsusanciatihera  alreacly  h$v4  una  now 

illabJS  In  Hit  tOfm  at  a  nqw  law  pncs  Orde> 


NEW,  LGWER  PRICES! 


F'aatijred  in  a.  Radi'^^iLl'^i 
story  iMe^  a\ 


PARTS  PARADE 


plated 
SSSUrr 

For    the 


JtTn-e  cover 
jill^C  TV 
,^  [.^^-^'dndg  o!  roca- 
build;  pr&elcFiKj, 
J  component  layout 
^nt  i]idcann«rit  .and'  lf\it 
and  local  o-sciFlstQr  ar#  piE- 
'jnedi  All  pans  are  ific^uded 
agHive  ci&6.  powaf  %upp1y, 
descriptive  opecaiirig  rnanual  as  w^N  a$  ^gm- 
plete  ss-g^mttly  m$! ruction*.  Featur-as  of  the  f&- 
cerv&t  inciude,  dual  converaion  desian  fo-r  best 


A  complete  Sa!E! I UiE  TVSy.s(flm  requires 
A  dasFi  gnlenna.,  LNA  llOw  norse  flmpli- 
fierj,  flecaivfif  and  ModuJaSor. 
R2  B  R&Ceiver  Kit  tMS.M 

R2B  Receiver,  Wip'sd  and  Tested    S»fl6,W] 

RM3  F^F  F^odu  later  ^49.96 

Prige^  include  {fomesttc  UPS  shipping 
and  insursJi-ce 


IC  SPECIALS 


LINEAR 


301 

380 
SS5 

5S6 
&65 

ses 

5fi7 
741 
l4Se 

a03S- 


*► 


*1.5C 
E  .4« 

St  W 

SI. 00 
S1.00 
$1  2S 

t  .50 
t  .50 

S29$ 


TTL 


CMOS 


40tt 
40131 
404S 

4Q49 

4511 
451^ 
563* 


.50 
.50 

S1.85 
.50 

$9.00 
$2.00 
S1.35 
31,75 


74S00 

7447 

7475 

74B0 

7^t96 


S  .40 
$  6S 
S  .SD 
$   SO 

SI  35 


SPECIAL 


tiC90 

tons 

7200' 
7Z07A 

72160 
7^07C 
5314 
5375  A8/< 
7001 


SI  5,00 
$   1.25 

£17,50 
S  5.50 
121.00 
$12.50 
$  2.95 
I  2.95 
$  6.50 


Asaortment  of  Popular  values  ■ 
watt.  Cul  laad  for  PC  mpunting. 
center   ''^"  iea<Js    bag  of  300 
more 

$1 


Of 


5D 


S  wl'tc  N^£ 

M.ni  toggte  SPDT  Si. 00 

Red  Pushbuttons  N  O        3/S1.00 


Earphones 
3"  Feads.  B  or^.m  good  For  arnall  [of>e 
speS*<er5.  fllprm  dockg.  gtfi 

5  for  SI, 00 


FERRITE  BEADS 

WiiFi  i'-<*o  and  SflfK:!"       IS.'SI  00 
B  M^le  Bs\\if\  Bead 3         &;  11.00 


READOUTS 

PN0J6g4"CC  11.00 

FNDSOT.'SlD   5'  C  A  1.M 

MAN  TP/HP7730  Xy  C  *  t.M 

NP  vesf    43"  C  A  a. DO 


TRANSISTORS 

2N390J  NPN  C'f  ti.'tlOO 

?IN3We  |)NP  C^  F  \S.ftl .« 

JKm03  PN-P  C  ^  F  1  !/|  1 .00 

SPWJiaNP^JCHF  15/1100 

iNUtit  PhPC^F  i/n.» 

?NeQ?BG*F  A/fi.O^ 

?N377i  NPN  Silicon  fE.SO 

2NS179  UHF  NP*t  5/II.0O 

Pfiw^r  Tft  HPN  40W  3/%\.tltt 

pD**f  Tib  PNP  40 W  3^1.90 

WPF  102.''2N54»4  t.Sl» 

N43N  3^^  typf  T*n  M/fa.so 

pnP  )He  T^pfl  T^ft  H^|2.» 

2N305S  tji« 


Sockets 

fl  Fin  10/S2.O0 

14  Ppn  10/S2.00 

16  Pm  10v*2.00 

24  Pin  4/$2.M 

2B  Pin  4/ $2. 00 

40  Pin  3/$2.00 


Mini  0  Ohm  Sp«*kvr 

Approx    ?'..i'  dism    Rour^d 
type  tor  radios.  mKe  ■&!£: 
3  for  S2.00 


Cfystait 

3  579545   MHZ  Si  50 

lOOOOOG    MHZ  SS.OO 

S  24Sa00    MHZ  S5.00 


*C  Aclspter* 

G-oofl  for  rlotJts  nics<j 
chflrgpTS^all  110VACplH9 
O'ne  end 

8 .5.  (/dc  (a  ^a  mA  si  .co 

16    yac  !^  160mA  i2,S0 

^^   vac  >a  250rr>A  13,00 


Solid  Stilt  Buifere 

small  buzzer  450  Mz.  66  dB  sound 
oulpNt  on  5-12  "i^dc  at  10-30  rnA  TTL 
CQrtif^atit^ie t1.$C 


Audio 
Prescaler 

Make  high  resolution  <9U£lso 
n>easufments,  great  for  musrcaf 
Fnstrument  tuning.  PL  Torres,  etc 
MuHiplies  audio  UP  m  Irequerrcy, 
selectable  xlO  or  xlOO,  gives  Oi 
HZ  resolution  wfth  1  sec  gafe 
tiiTie'  High  sensitivily  of  25  mv.  1 
meg  input  j  and  built-in  tHtering 
gives  greai  performance  Runs 
on  9V  battery,  all  CMOS 
PS-2  k(t  $39.95 

PS-2  wjf  ed  $  49.gs 


600  MHz 
PRESCALER 


Extend  the  range  of  your 
counter  lo  600  MHz    Works 

With  all  counters.  Less  than 
150  mv  sersitfvity.  specify  - 
10  or  -TOO 

Wired,  tested,  PS-iB  S59.9S 
Kit   PS'ia  $44.95 


&l4ig  Tuned  Coils 

Small  3.'"16"   Hei<  Slugs  turned  coil 
3  turns.  10  for  Si. 00 


AC  Outlet 

Panel  Mount  with  Leads 
4/Sl,00 


CAPACfTORS 
TANTALUM 

1.5uF25V3^S1.00 
1.8  uF  25V  3^S  1.00 
.52uF25V3/$1,00 


ALUMINUM 

ElECfrtiis^t-.C 

looo  uF  i6V  Hao^ai  t.ia 

500  uF  20V  Ai^al  I.SQ 
15&  uF  1§V  Ai^al  S.''lt.00 
lip  uP  15V  1^ ad  1*1  tO'tl.W 


DISK  C£RAHEC 

01   iGV  dii*     3'QySl.0& 
1  T6V  tS/*1.M 

DOl   16V  20.--51.M 

tCKpF  '      20..'S1  M 

fHl?  IGV  JOj'tl.oa 


30  Watt  2  mlr  PWR  AMP 

Simple  CJassCpowei'  amp  features  8  times  power  gain  1  Win 
for8out.  2Winfor  15out.4Winfor30out  Maxoutputof  35  W. 
incredible  value,  compfete  with  aH  parts,  less  case  and  T-R  relay. 
PA'1.  30  W  pwr  amp  kft  $  24.9s 

TR-1.  RF  sensed  T-R  relay  kit  6.9S 


DC-DC  C[3nvert«r 

'S  vac  inpul  prcwa    -9  vdc  fcEi  iiOma 
■9  vdc  produces -15  vdcto!  Jama  H.25 


Diodet 
5  1  V  Zener     20/! TOO 
1N9l4Type     SO/SIOO 
1KV2Amp  B/|1,00 

100V  lArrip      15/*t.0O 


25K  30  Turr^  Tfim  Pol    $1.00 
IK    m  Turn  Trim  Pot    S  .50 


Ceramic  IF  F''^'*;t*' 

Min  -^1  qOU^  'kHz 


IE 


Spraoue  -  3-^D  pF 
.50  *1. 


MRF'33,0  trgnsislor  a&  used  in  PA-I 
e-10db  qain    150  mhz  S11-9S 


RF  actuated  relay  senses  RF 

(1W)  and  closes  DPDT  relay 

For  RF  sensed  T-R  relay 
TR-1  Kit     $6.95 


Power  Supply  Kl^t 

Complete  iriple  regulati^d  power 
EUppJy  provides  varrable  6  to  tS  volts  al 
200  ma  and -5at  1  Amp  Exceilen)  load 
regutatron  good  filtering  and  small 
s j  ze  L  ess  t  ra  ns  f ornriie  rs .  req  u  ^es  6 . 3  V 
•s1  A  and  24  VCT 
Compleie  krt.  PS-3LT  S6.95 


Crytlal  Microptiofie 

Small  I"  dtameter  '■/'  FhicK 
crystal  mike  cartridge   4.75 


25  AMP 

IDGV  Bridge 

$1.50  each 

Mini-Bridge  50V 

1  AMP 

2  for  $1.00 


Co4x  Connector 

Chassis  mount 

BNC  type  $1.00 


Mini  RG-174  Coax 
10  ft.  for  (1,50 


OP-AMP  Spvcivi 
BI-FETLF  13741  -  Direct  prn  for  pin  7^11  c^^  Q' 


,N)1 


[r\pu\  z.  super  low  5-0  pa  mpul  cur'^vjOl    power  dram 


but  500. 000  MEG 


SO  for  only         $9.00 


10  t<tr 


fa.W) 


f  V&n  Billsry  Cllpt 
Mic«  qualily  clif(£  S  for  11.00 

\-    Rutsfeer  Crorrnmets        10  tor  H.OO 


Ai^l   oi  choho  ^$\si.  cafth    r«nr    r^vtto^^ 

t^sr-iiH^if^.  dindle;   M'CA  CApi  tic 

in}    tug  C^OO  pc)  fl.OO  \j}  big  (300  pcj  13.90 


6  pm  type  go^d  contact's  'or 
m  A- 1003  C9^  clocts  mondulie 
price  7^  •■. 


Ledi    -  y<3ur  choice.  pEease  specify 

Mini  Red  Jumbo  Red,  Htgh  Intensity  Red.  Illuniinator  Retf  S/Sl 

Mmi  Yellow.  Jumbo  Yellow.  Jujnbo  Green  i/t1 


Var*ctairt 
Mott^rola  MV  2209  30  PF  Nomir^al  tsp  20-80  f*F  -  Tunable  rarvg* 


78MG 
79MG 

309K 

7805 


$1.25 

(1.2$ 

1.50 

41.15 

Sl.OO 


Regulftton 


7fll2 

7815 
7905 
7912 
791 S 


$1.00 

tioo 

$1.35 
$1.25 
$1,25 


Shrink  TublfiQ  Nub* 

Nic^  precut  pees  pf  stirink  si/p    V  *  >*" 
shrink  tiy  'V   Gre&i  iO'  splices     so/tt.WJ 


Mini  10-92  Heal  Sinks 
The*  ma  Hoy  Bra  net  S  Jiw  tl.OO 

To-2?Ci  Heal  Sinks  3  fer  11.00 


Opto  Isolators  -  4N2e  type 

Opto  Reflectors  -  Photo  diode  +  LED 


$.50  em, 
$1.00  •«. 


Moi«x  IHnc 

Mol«i  aJrOftdy  priKut  m  length  o(  7  Peft*Cl 
lor  M  pip  sockets    JO  itr^p*  for  II  ,00 


CDS  PtiDloctflt 
Resistance  vartea  *itn  light    250  onrTis  w 
over  3  rneg 3  tat  $1.0fl 


See  L^s/  cj/  Advef timers  on  page  T14 


73  Magazine  *   June,  1984  125 


soma  happiness  \o  paople  at  different  lo> 
oaijona  in  the  world 


PORTUGAL 

Lutx  Miguei  d^  Sousa  CT4UE 

PQ  Bo^  32 

5.  Joao  do  Eaiofii 

27SS  PorttiQal 

Lat  rrwr  Introduce  you  lo  two  vwf  Irv 
ter^BSIIng  Portuguese  awards .  sponsored 
by  REP: 

(1)  DMP-WPW^WQrk00  Portuguese 
Woffd.  OSO  Of  SWL  ten  dltt^rent  stations 
In  ten  Portusue^e  po34«S4ions,  usiOQ  any 
mode  or  band  after  July  29.  1947.  Covrv 
tri^  are:  PortUQaJ,  Azores  tsiarkds,  Ma- 
deira islarti.  e^ie-Poriugueae  India  (not  re- 
quiredjp  Cape  Vert  tsiarid,*  St,  Tome  ^fKJ 
Principe  Wand*,*  AnQOt*,*  M02amtnquft,* 
Portu0ua$a  Timor/  and  Macau.  (An  asiaJT' 
tsfc  meand;  ooniatt^  made  <im\r\Q  the  Poc- 
lugue^e  administration  of  Ihat  country.J 

(2)  DPCi^Wotked  POffy0wafl«  Pwv~ 
Incm.  QSO  ot  SWVL  SO  dlf<tfl«nE  CT  sla- 
ttofia»  with  26  co*nt«€tS  in  dlflerent  prcw- 
incss  and  islands,  uSlAQ  &ny  mode  <n 
band  after  January,  195Z  Mtnlimum  OSOa 
with  each  province:  Trai  os  Montes  e  AKo 
Douro— 1,  Minho— 1,  Ooyro  Utoral— 5^ 
Beira  Utora!— 1,  Beira  Balxa— 4,  Beira 
Alta^lt  Estfemadyra— lOp  Rlbateio— 1, 
Alto  AFente|o— 1.  Salxo  Alentejo— ^1* 
Algarve— 1,  Acores— 1,  Madeira ^1, 

For  these  two  awards^  8Ut>mll  OSLe  or 
ftai  cgrtihed  by  an  lARU  affiliated  radio 
society  and  sand  to  REP-REDE  Oos  Emls- 
aore*  Portugueses,  Rua  D,  Pedro  V.  ?f4, 
LlatKpn,  PortugaL  and  do  not  forget  to  |n^ 
elude  3  or  4  IRCs  to  cover  tne  expenses. 

As  eald  before,  the  country  is  covered 
by  somo  rapeaiera  for  VHF  and  UHF.  A  re- 
peater's frequencies'  are  eatabllshed  ac- 
cording to  the  lARU  Region  I  band  plan  for 
VHF,  So  these  are  the  repealers,  followed 
by  their  locations. 
RV^QTOSE^Serra  da  Est  r el  a) 
R1— CT»LO(Lousa) 
R2— CTflFO  (Fola) 
FI2~CT»LE  (Lelrla) 
R3— CTBFF  (FIgjeira  da  FozJ 
B3-CT»MAD  (Pico  SHwa-MadeIra) 
R4— CTOHS  tMonsanto— Lisbon) 
R4— CTilMA  (Serra  do  Marao) 
R&— CTiSM  (CerroS.  Miguel) 
R5— CT9SA  (CaatelD  Sranco) 
R6— CT»MO  tMontojunto^ 
H7^CT»AR  ^Arrablda) 
R7— GTiSL(SL  LuJtia— Viana  do  CaslelO) 
Re-CT«SI  (Sintrar 
R&-CT«ES  (Eslremozl 
Ra-CT«VA{Volonoo> 

UHf 
RIJ9— Monsanto 
RU1 — Serra  da  Est  tela 

In  U»bon  with  «  hand-held,  tiy  B*.  R7, 
RS^andRUi. 


Op&ratifjg  Advfcs  For  Ucens&d  R»dio 
Amateurs,  the  new  publication  issued  by 
the  1ARU,  is  ve^y  helpful  for  new  hams  in 
order  to  guide  them  in  a  good  ope  rat  ton 
In  the  DX  frequencies. 

According  to  a  proposal  presented  by 
GRA  (Grypo  de  Radioan^adores  do  Al- 
girve)p  Ihe  tocal  administration  deUt^er^ 
ated  that  those  interested  could  use  oiher 
prefixes  during  VtfCY/B3  insiead  of  Ihe 
well4triown  CT  that  we  use  d^Uy.  So,  dur- 
ing that  period  of  time,  a  lot  of  Portuguese 
hams  activated  CO,  CR,  CS.  and  CU. 

Some  of  these  ;>rettxes  have  been  In 
QRT  since  ttre  independence  of  ttw  ex- 
Por^jgu^se  colonies  in  Africa,  if  we  all  re- 
member itie  o!cf  good  days  bacK  in  1 97*15 
in  Angola  GR6  (CQ6.  XX6).  Moaambique 
CR7,  Portuguese  Guinea  CIQ.  S.  Tome  and 
Principe  island  CR5,  and  Cape  Vert  Inland 
CR4, 

It  Js  reaf  nice  when  we  have  ottief  pre- 
flKes  in  contests. 

t  sttll  remember  when  I  ivent  on  the  alf 
usir^  CRSUE,  COSUE  and  XX5UE  In  that 
time.  We  had  a  lot  of  tun.  But  this  isn't  ail 
We  Just  received  Information  from  h4acau 
CR9  saying  thai  they  would  be  uelr>g  XX9 
In  tho  ve<ry  rvear  future. 

M  Is  a  good  chance  to  increase  qum  WPX 
Itsi 

DXPEOmCWTO 
BERLENGAISU^ND 

Four  REP  members.  CT4UW,  CT4NH. 
CT1 AFN.  and  GTiCEX^  were  operative  last 
March  from  Oertenga  Island,  6  miles  off 
Ihe  Portuguese  coasi  at  the  city  of 
Pertlche,  working  a  very  special  (tst 
World)  callstgn.  GTQBf. 

Eleflenga  Is  valid  for  the  (QTA  Award 
(tslandft  or\  the  Air),  having  IDTA's  number 
ELMO,  and  obviously  good  tor  WPX 
hunters. 

The  operation  took  pi  ace  from  the  existing 
lighthouse,  under  Portuguese  adminiatra- 
tfon.  Transportation  and  other  facilitiea 
were  graciously  given  by  the  Portuguese 
Navy.  QSL  cards  via  home  calls  {Caff book 
address).  More  about  this  later. 

CRC— CLUBE  DE 
RADIOAMADORES  DE  CASCA1S 

This  Is  a  result  of  the  efforts  undertaken 
by  a  group  ot  hams  living  In  the  municipal- 
ity of  Cascais,  This  enolent  village,  found- 
ed In  1400,  Is  situated  12  miles  west  of 
Usbort  and  €  miles  from  Roca's  Gape, 
where  the  European  continent  |ust 
begins. 

The  area  le  surrounded  by  beachas. 
nice  hotels,  golf  courses^  souvenir  shops, 
and,  Of  course,  the  typical  restaurants  In 
which  you  muat  try  the  real  Portuguese 
cuisine, 

CRC  \s  sponsoring  two  Interesting 
awards  for  licensed  amateurs  as  well  as 
SWLS  worldwide: 

1)  TOO  CT  Award.  For  this  one,  contacts 
must  be  made  after  February  t3v  1984. 
with  100  or  more  different  CT  stations, 
with  at  feast  3  CT3  (Madeira)  and  072 
(Azores)  stations. 

2)  CCA — Cascais  County  Awsfd.  Con- 


HAM  HELP 


tacts  after  February  13, 1964,  with  the  six 
adm  i  nisi  ret  tve  dl  vis  tons  In  Cascais  Coun- 
ty: Alcabidache,  Carcavelos>  Gaacais^ 
Estorll,  Parede,  and  S.  Domlngos  de  Rana. 
These  two  awafds  are  issued  for  any 
band,  CW  or  phone,  as  well  as  mi)(ed-  and 
slngla-band  accomplishments.  To  apply, 
a  Hat  of  conlacls  must  l>e  verified  by  two 
amateura  or  local  radlo-ciut>  officials. 
Send  a  list  plus  1 2  IRCs  or  USSSOO  to  CRC 
Award  Manager,  PC  Box  209.  2752  Cas- 
cais, Portugal. 


REPUBUC  OF  SOUTH  AFRICA 

Sui&Amko9n$9  Radio/iga 
fa*  Durdsn  Branch 
P^sbus  f  05ff  PO  Box 
Duftafi  4000 
RefiuNie  nf  SauSh  Africa 

On  May  31.  19&4,  to  celet^ate  Republic 
Day  In  Soutb  Alrica,  the  Durban  Brancti  of 
the  SARL  will  operate  special  caitsign 
ZS5RSA,  Ihe  operallon  will  cover  35- 
28  tAHi.  CW  and  SSB.  as  far  as  band  con- 
ditions permit,  This  ia  tfie  titlh  consecu^ 
live  year  thai  this  activity  has  taken  pia(% 
and  it  has  proved  very  popular.  A  specie) 
OSL  card  is  normally  Issued  for  contacts 
with  this  station. 

0a  Bruce  P.  Dunn  ZSSXT 


Am  intef^led  In  modi  ricati oris  for  a 
StarKlard  C-11B  2m  HT,  especially  how  to 
reduce  the  output  power, 

Tim  MgofV  KL7FF 

11tT*A"Stf»el 

Juneau  AK  99S01 


f  need  a  copy  of  the  schematic  and  man- 
uai  for  a  DuMont  Mod,  274  oscilloscope.  I 
will  gladly  pay  copy  and  postage  costa^ 

Robert  A,  Johnson  N7CFX 

&33  E.  Gwinn  Place 

Seattle  WA  9^102 


TRINfDAD  AND  TOBAGO 

JohnL  Webster  BYAJW 

clQ  D&partmant  of  Soil  Science 

University  ot  ihe  West  indies 

St  Augustine 

Trfnid&d 

WBst  Indies 

The  biggest  evenl  In  the  WCY  1983 
TTARS  calendar  occurred  during  the  last 
week  of  October.  This  event  waa  a  nation- 
af  exhibition  on  communlcBtlons  in  which 
the  TTARS  participated.  It  was  a  major 
contribution  by  the  governmenl  of  Trini- 
dad and  Tobago  to  World  Communica^ 
tions  Year. 

The  ejtri  kbit  ion  was  officially  opened  on 
Sunday,  Ociot>er  23,  by  Ihe  President  ol 
the  Republic  and  was  open  to  members  of 
the  public  daily  t>etweefi  the  hours  of 
10:{)0  am  and  &00  pm,  until  Saturday,  Oc- 
lobef  29111.  Tt>ere  were  exhibitors  from  att 
sections  of  ihe  commercial  communica- 
tions field,  and  many  computers  were  In 
evidence. 

The  TTARS  prepared  an  Impressive  ex- 
hibit in  Its  attempt  fo  educate  the  public 
about  amateur  radio^  Brochures  descfib- 
lr>Q  our  hobby  were  prepared  and  distrib- 
uted to  ali  visitors  to  our  booth.  We  at- 
tempted whenever  possibie  to  fiave  three 
stations  ofierating  simultaneously,  one 
on  VHF  simpfex  or  the  iocal  repeater  and 
the  ottier  two  on  the  HF  bands  Whenevet 
we  had  two  HF  stations  on  simultan^xis- 
iy,  we  tried  to  utili.ze  two  different  modes 
In  order  to  demonstrate  tf»e  versatility  of 
this  exciting  hot^.  The  modes  we  wece 
aIHe  to  demor^lrate  were  SSB,  CW,  and 
RTTY.  LMIonunately,  fof  miich  of  tfie  ex- 
hibition the  piopagalion  was  poor,  but 
ilXMJt  1000  QSOs  were  loggied  using  ihe 


special  caibign  9V4WCY.  (Anyone  wish- 
ing to  confirm  a  QSL  with  9Y4WCT  should 
QSL  to  9Y4rr4 

The  antenna  systems  in  use  at  9Y4WCy 
consisted  of  two  three-element  trlband 
yagis  for  10.  ^5,  and  20,  a  long  wire  for  BO, 
and  a  KLM  four-element  yagi  for  40.  The 
latter  presented  quite  a  chaiienge  both  In 
finding  a  suitable  site  on  which  to  posi- 
tion It  ar^  also  in  the  actual  erection  of 
the  t^a^m.  it  was  eventually  placed,  with 
the  aid  of  a  mobile  crane,  on  a  tripod  on 
the  top  of  the  elevator  shaft  of  the 
tHj  tiding  housing  the  c*  hi  bit  ion,  at  about 
25  meters  above  ground  level. 

We  also  tiad  all  of  the  oompononts  Of  a 
sateltite  station  on  site  with  ttie  exoecta* 
t^on  that  we  would  be  at}4e  lo  work  OSCAR 
10.  Unlortunateiy.  thes  was  not  to  be,  as 
proWems  developed  with  ttie  equlpment- 
WTien  tliese  probfema  were  eventually 
sorted  out,  it  proved  impossible  to  hear 
the  satellite  due  to  tf>e  exiremely  higli  lev- 
el of  VHFAIHF  intefference  being  giener- 
ated  tjy  the  lar^  number  of  comoutefs 
and  othe  oominunioatior\s  equipment  In 
operation  on  Itie  site. 

This  was  a  great  disappointment  fo  ua, 
t>ut  we  were  still  able  to  explain  amaieur 
satellite  corrtmuni  cat  ions  to  our  visitors 
through  the  use  of  p€>sters,  twochures, 
arid  with  the  aid  of  the  AMSAT  AMS^t 
tracking  program  running  on  the  low<ost 
Times  TS-1000  computer 

Other  exhibits  included  a  comprehen- 
sive publications  display,  vintage  e^^uipn 
ment,  a  dispiay  showing  the  progression 
of  technology  from  tubes  to  integrated  cir- 
cuits, an  assortment  of  maps  and  posters, 
homebrewed  equipment,  and  a  seleciion 
of  OSL  cards  and  amateur- radio  awards. 

The  WCY  exhibition  was  the  first  real 
eixpoeure  to  the  public  I  hat  amateur  radio 
here  has  received.  It  was  quite  a  success 
for  the  TTARS  as  several  thousand  per- 
sons visited  our  t>qoth  and  40  new  asso- 
ciate members  have  joined  the  Society  as 
a  direct  result  of  the  exhibition.  Most  of 
them  are  now  attending  our  current  train- 
ing program. 

Several  companies  and  Individuals  pro- 
vided much  of  the  materlat  used  to  help 
make  the  show  the  success  li  was.  The 
TTARS  would  iike  to  publicly  thank  the  fol* 
lowing  for  their  contributions:  ARRL, 
RSGB,  JARL.  AMSAT,  CO.  73,  Radio  Ama- 
teur CBttbook,  Inc,  Van  an  El  MAC,  Kan- 
tronics,  RCIS,  Inc^  Computer  Applica- 
tions, RCA,  KORZ  and  KdCY  of  AMSAT 
Software  Exchange.  Bob  Jackson  AQ5X» 
and  Jack  Gutzeit  W2LZX 

1963  was  the  year  that  the  personal 
computer  age  really  got  off  the  ground 
here  in  Trinidad  and  Tobago.  In  the  latter 
half  of  the  year,  many  of  Ihe  hams  got  into 
the  act  as  well.  As  a  result,  the  need  arose 
for  some  guidarice  Ifi  programming  Iri 
Basic  for  the  newcomers  from  some  of  thne 
mc^e  experienced  compuier  hackers.  This 
too^  the  form  pi  half-hour  la£tura^Jacus- 
sion  sessions  on  the  air  during  the  weekly 
9Y  net,  conducted  by  Russ  9Y4RB  and 
Uoyd  9Y4DJC  This  rwt  rneets  every  Surv 
day  at  tSOOZ  wi  7  159  MHz. 

The  finai  notatt^e  event  in  the  9Y  caleU' 
dar  occurred  with  ttve  launch  of  STS^I^ 
Cdiumbia,  with  Or.  Owen  Garrio4t  W5LFL 
on  board.  The  poasit>ili|y  ol  worthing 
W5LFL  starred  up  r^onstderable  Intereet 
f^ere.  On  Friday.  December  2nd,  twiween 
2322Z  and  233QZ  (Orbit  700— tfte  only  one 
on  wtiich  Or.  Gafriott  was  supposed  to  be 
operatmg  that  reaiiy  favored  Trinidad), 
thi$fe  viere  at  least  a  dozen  9y  stations 
ke^ng  a  racket  on  W5-LFL's  ran||e  of 
listening  hequencieS-  ~  -but  it  was  all  to 
no  svm\.  Not  a  peep  was  heard  from  Oo- 
lumtiiB  and  ttiefe  were  a  lot  of  disap- 
pointed hams  tvere  in  Trintdad.  We  are 
hcpir^g  for  better  luck  next  tirrie! 


1^     7Z  Magazine  •  June,  1984 


THE  FIRST  NAME  IN 
ELECTRONIC  TEST  GEAR 


NEW  FROM  RAMSEY-20  MHz 
DUAL  TRACE  OSCILLOSCOPE 

Unsurpassed  quahty  at  an  unbeatable  price,  the  Ramsey  oscilloscope 
compares  to  others  costing  hundreds  more.  Features  include  a  compo- 
nent testing  circuit  that  wilJ  allow  you  to  easily  lest  resistors,  capacdors, 
digital  circuits  and  diodes  •  TV  vfdeo  sync  filter  •  wide  bandwidth  & 
high  sensitivity  •  Internal  graticule  •  high  quality  rectangular  CRT 

•  front  pane]  trace  rotator  •  Zaxss  •  high  sensitivity  x-y  mode  •  very 
low  power  consumption  •  regulated  power  supply  •  built-in  calibrator 

•  rocic  solid  irjggering  •high  quaUty  hook-on  probes 


$39995 


high  quality 

hook-on  probes  tnctuded 


RAMSEY  D- 1100 
1-MULTITESTER 


Compacl  and  reliable,  de- 
Signed  to  service  a  wide  vari- 
ety ot  equipment.  Features  m- 
clMde  *  mirfor  back  scale 
•  double-jeweled  precision 
moylngcoll  •  double  over- 
load p^olect^o^  •  ari  Ideal  low 
cosi  gntl  Tor  the  beginner  or 
a£  a  spare  back-up  unit. 

$i99S 

lest  I'eftdft  and  battery 
tnc>tud«d 


RAMSEY  0-2100 

DIGITAL  MULTITESTER 

A  compact  easy  ro  use  unit 
designed  to  operate  like  a  pro. 
Featuring  •  3^^  digit  LCO  •  fow 

BAT  indtcalor  •  all  range  over- 
load protecttori  *  overrari^ge  Indt- 
cation  •  auto-polarity  •  Tranala- 
lor  tester  •  dual -si  ope  integra- 
tion •  vinyl  carrying  cas& 


S5495 


hpE  ^^*^  ^eads,  battery  &  vinyl 
carrying  c«s«  included 


RAMSEY  0-3100 
DIGITAL  MULTIMETER 

ReiiBbre,  accurate  d[gitai 
measurements  al  an  amai- 
ingiy  low  cost  •  In- tine  cotor 
coded  push  buttons,  speeds 
range  seteCEipn  •  abs  ptastlc 
tJll  stand  •  recessed  input 
Jaclcs  »  overload  protection 
on  s\\  ranges  •  3'.^  digit  LCD 
dJSpiay  with  auto  2ero,  auto 
polanly  &  low  BAT  indicator 


test  leads  and  bdUtry 
incHuded 


CT-70  7  DIGIT 
525  MHz  COUNTER 

Lab  quality  at  a  breakthrough  pnce. 
Features  •  3  frequency  ranges  each 
with  pre  amp  •  dual  selectable  gale 
limes  •  gale  activity  indicator 

*  50mVr5-  150  MHz  typical  s^nsnivity 

•  wjde  frequency  range  •  t  ppm 
accuracy 

Ml  995 

wired  include t  AC  adapi«f 

CT'70  hii 

SP'^  nicad  pac^ 


199  »S 


CT-90  9  DIGIT 
600  MHz  COUNTER 

The  mosE  versa  11  le  for  less  than  $300 
Features  3  detectable  gate  limes  •  9 
digits  •  gat^mdicatof  •  display  hotd 

•  25mV  fa)  ISO  MHz  typical  sensitivity 

•  10  MH^timebase  tor  WWV  calibra- 
tion •  1  ppm  accuracy 

$14995 

wired  Includei  AC  adapter 

CT  90kil,      . St2«.9S 

OV-i  0.1  PPM  ovei)  timebase  .     59  95 
BP-4  mead  paelt  ........_...       9.95 


CT-125  9  DIGIT 
1.2  GHz  COUNTER 

A  3  digit  counter  that  witl  outperform 
units  costing  hundreds  more,  •  gate 
indicator  •  24mV  iJ.iJ  150  MHi  typical 
sensitivity  •  9  djg it  display  •  1  ppm 
accuracy  ■  display  bold  ■  dual  inputs 
with  preamps 

mrired  inctudes  AC  adapler 

3P-4 nicad  pack ^.S-SS 


"     1 


ivn^n  jHHiirtH 


CT-50  8  DIGIT 
GOO  MHz  COUNTER 


A  versatile  lab  bench  counter  with 
optional  receive  frequency  adapter, 
which  turns  Hie  CT-50  into  a  digital 
readout  for  most  any  receiver  •  2S  mV 
(§>  150  MHz  typical  sensitivity  ■  ©digit 
display  *  1  ppm  accuracy 


*  16995 


CT'SOliii .  - 

BA^1  meeiver  adapter  M  . 


$139.35 
14,95 


DM-700  DIGITAL 
MULTIMETER 

PrciTflissional  qualijy  at  a  hobbyist 
price  Features  include  26  different 
ranges  and 5  functi-ons  •  3  -.digit,  Vi 
jnch  LEDdispiay  •  automatic  decimal 
placement  •  automatic poiarily 

$11995 

wired  Includes  AC  adapter 

DM-700**it S9f.95 

MP  1  prci*>e  set  . . . ..  4K 


PS-2  AUDIO 


The  P^-?  IS  handy  for  high  resotutlon 
audio  resoluhon  measurements,  mul- 
tiplies UP  m  frequency  •  great  tor  PL 
tor^e  measufemenis  •  multiplies  by  lO 
Of  100  •  0  OtMz  resolution  &  buNt-m 
sfgnaJ  pfeamp/condittone/ 


$4995 


PS-2  k  rt 


539  95 


PR-2  COUNTER 
PREAMP 

The  PR-2  isideat  for  measuring  weak 
signals  from  10  to  t.OQOMHj  •  flat  25 
db  qam  •  Bt^C  connectors  *  great  for 
snifiing  Rf  •  ideal  receiver/TV 
preamp 

$4495 

vrif^  inctiidfti  AC  adapter 

PR-2  h^  S34.9S 


PS- IB  GOO  MHz 
PRESCALER 

Extends  the  range  of  your  present 
counter  10  6D0  WHj  ■  2  stage  preamp 

•  dfVJde  by  10  circuitry  •  sensitivity 
25m V  £ai  150  MHz  •  8NC  connectors 

•  drives  anv  counter 


mrfrttd  Includes  AC  adapler 
PS'iBk+t 


|49.§S 


AQCESSQRrES  FOR  RAMSEY  COUNTERS 

Telescopic  whip  antenna— BNC  plug    ..  $8.95 
High  impedance  probe,  light  loading  .  . .     16.95 

Low  pass  probe,  audio  use 16.95 

Direct  probe,  general  purpose  use 13.95 

Tilt  bail,  for  CT-70.  9{),  125   , 3.95 


massfi^  cf^^ge^ 


BLk«ii  iimi,*  \.tt. 


PHONE  ORDERS  CALL 

716-586-3950 

TEUX  466733  RAMSEY  CI 


TERMS  •  silisldCliDn  guiranteeci  •  eurcrmefitf  lOdivs  al  nolple*$«d  rdurn  in 
oriqmil  iQfrrr  lar  refun^tt  •  i64  §' :  tgr  f  hippinq  inil  ErtsurJfice  to  i  miieiinum  it 
StQ  00  •  &vers.ei£  idd  15' :  far  iur1>4:«  titiil  •  CQD  atffi  S2  5D  |£D§  m  USI  onlyl 
«  ordiri  under  S15  m  add  S!  50  *  NT  resident;  add  7/^  iain  Iji  •  S€  djf  parts 
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—^^^  -— ===      RAMSEY  ELECTRONiCSJNC. 
i#  ^  =iii==^i=:  ¥      2575  Baird  Rd. 


I    Penfield.  N.Y  14626         -26 


^See  List  of  Adverttsers  on  page  U4 


73M&gazme  •  June,  1984    127 


THE  MOST  AFFORDABLE 

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Both  kfi  amf  mmd  Ufiits  am  compf&W  with  aii  pmis,  modutes.  hardwam.  arid  crystals. 

CALL  OR  WRITE  FOR  COMPLETE  DETAILS. 

Afso  avmisbfe  forfBmom  site  HnkinQ.  cfos^sand,  and  renmto  base 


I 


FEATURES: 

•  SENSITIVITY  SECOND  TO  NONE;  TYPICALLV 
0.15  uV  ON  VHF.  0.3  uV  ON  UHF. 

•  SELECTIVITY  THAT  CANT  BE  BEAT!  BOTH 

6  POLE  CRYSTAL  FILTER  &  CERAMIC  FILTER  FOR 
GREATER  THAN  1 00  dJB  AT  ±  12 KHZ.  HELICAL 
RESONATOR  FRONT  ENDS.  SEE  R144,  R220, 
AND  R451  SPECS  IN  RECEIVER  AD  BELOW. 

•  OTHER  GREAT  RECEIVER  FEATURES;  FLUTTER- 
PROOF  SOUELCH,  AFC  TO  COMPENSATE  FOR 
OFF-FREQ  TRANSMITTERS.  SEPARATE  LOCAL 
SPEAKER  AMPLfFIER  &  CONTROL 

•  CLEAN,  EASY  TUNE  TRANSMITTER:  UP  TO  20  WATTS  OUT 
(UP  TO  SOW  WITH  OPTIONAL  PA). 


HIGH  QUALITY  MODULES  FOR 
REPEATERS,  LINKS,  TELEMETRY,  ETC. 


HIGH-PERFORMANCE 
RECEIVER  MODULES 


fi144  Shomi 


R144/R220FMRCVRSfor2Mpr220MH2, 
0.1 5  uV  sens-;  8  pde  xtal  filters  ceramtc  fitter 
In  K  h^icat  nesoriatorf font  end  for  except lonal 
selectivity,  more  than  -100  dB  at  ±12  kHz, 
best  available  today.  Flutter-proof  squelch. 
AFC  tracks  drifting  xmtrs.  Xtal  oven  avaiK 
Kit  only  $1 38. 

R451  FMRCVR  Same  but  for  uhf.  Tuned  line 
ifont  end,  0.3  uV  sen&  Kit  only  SI  38. 

R76  FM  RCVR  for  tOM,  6M.  2M.  220,  Of 
commercial  bands.  As  above,  but  w/oAFCor 
hel,  res.  Kits  only  $1 18. 
Also  aval!  w/4  pole  filter,  only  $9e/klt, 

R1 1 0  VHF  AM  RECEIVER  kitfor  VHF  aircraft 
band  or  ham  bands.  Only  S98. 

R11 0-269  SPACE  SHUTTLE  RECEIVER, 

kit  only  sea. 


mlronics 


^^33 


TRANSMITTERS 


•  T51  VHF  FM  EXCITER  for  lOM,  6M.  2M, 
220  MMzor  adjacent  bands.  2  Watts  gontln- 
yous.  up  to  2^^  W  intermittent.  SSa/kit 


9- 


•  T451  UHFFWI  EXCITER  2  to  3  Watts  on  450 
ham  band  or  adjacent  freq.  Kit  only  $78. 

•  VHF  &UHF  LINEAR  AMPLIFIERS.  Useon 
either  FM  or  SSB.  Power  levels  from  1 0  to  45 
Watts  to  go  with  exciters  &  xmtg  converters. 
Several  models.  Kits  from  $78. 


A16RFTIGHT  BOX  Oeepdrawn  alum,  case 
wi  tb  tight  cover  and  no  sea  ms.  7  x  8  x  2  i  nches. 
Designed  especially  for  repeaters^  $20. 


ACCESSORIES 


•  COR  KITS  With  Audio  mixer.  Speaker  ampii- 
fief,  tail  &  time  out  timers.  Kit  only  $33. 

•  CWID  KITS  158  bits,  field  programmable, 
clean  audio,  rugged  TTL  logic.  Kit  onlyS68* 

•  DTMF   DECODER/CONTROLLER    KITS. 

Control  2  separate  on/off  functions  with 
touchtones*.  e.g.,  repeater  and  autopatch. 
Use  with  main  or  aux.  receiver  or  witii  Auto* 
patch<  Only  S90 

•  AUTOPATCH  KITS.  Provide  repealer  auto- 
patch, reverse  patch,  phone  line  remote 
control  of  repeater,  secondary  control  via 
repeater  receiver  Many  other  features. 
OnJy  S90.  Requires  DTMF  Module, 


•   HELICAL  RESONATOR  FILTERS  available 
separately  on  pcb  w/connectors. 

HRF-144  for  143-150  MHz  $38 
HRF-220  for  21 3-233  MHz  $38 
HRF-432  for  420-450  MHi     $46 


128    73  Magazine  •  June,  19S4 


NEW LOW-NOiSE  PREAMPS     RECEIVING  CONVERTERS  TRANSMIT  CONVERTERS 


^1     C^      H^f^tfonics  Breaks 

the  Price  Barrier! 

NoNeedtoPay$SOtoS125 
for  &  QaAs  FET  Preamp. 

FEATURES: 

•  Very  Low  Noise:  0.7  dB  VHF.  0,8  dB  UHF 

•  High  Gain:  1 8  to  2B  dB,  Depending  on  Freq, 

•  Wide  Dynamic  Range  for  Overload  Resistance 

•  Latest  Dual-gate  GaAs  FET,  Stable  Over  Wide 
Range  of  Conditions 

•  Rugged.  Diode- protected  Transistors 

•  Easy  to  Tune 

•  Operates  on  Standard  1 2  to  14  Vdc  Supply 

•  Can  be  Tower  Mounted 


MODEL 

LNG-28 
LNG*5Q 

LNG*144 

LNG-220 

LNG-432 

LNG-40 

LNG-160 


TUNES  FIANGE  PRICE 

26-30    MHz  $49 

46  56    MHz  $49 

137150  MHz  $49 

21 0-230  MHz  S49 

400*470  MHz  S49 

30-46     MHz  S64 

150-172  MHz  $64 


ECONOMY  PREAMPS 


Our  traditional  preamps.  proven  in  years  ot 
service.  Over  20,000  in  use  throughout  the 
world.  Tuneable  over  narrow  range.  Specify 
exact  f req.  ba nd  needed.  Gain  1 6-20  dB.  NF  = 
2  dB  Of  less.  VHF  units  available  27  to  300  MHz, 
UHF  units  available  300  to  650  MHz. 


P30K,  VHF  K[t  less  case 
P30W,  VHF  Wired/Tested 
P432K,  UHF  Kit  less  case 
P432W,  UHF  Wired^^ested 


$18 
$33 
S21 
$36 


HELICAL  RESONATOR 
PREAMPS 


^ 


Our  lab  has  devefoped  a  new  line  of  low- noise 
receiver  preamps  with  helical  resonator  filters 
bui  It  in.  The  combination  of  a  low  noise  amplifier 
and  the  sharp  selectivity  of  a  3  or  4  section 
helical  resonator  provides  Increased  sensitivity 
while  reducing  intefmod  and  cross- band  inter- 
ference in  critical  appli  cat  tons.  See  selectivity 
curves  at  right  Gain  =  appf0x.t2  dB, 


Model 

HRA-144 
HRA-220 
HRA'432 
HRA-i  ) 
HRA-i  } 


Tuning  Range 

143-150  MHz 
213-233  MHz 
420-450  MHz 
150-1  74MHz 
450-470  MHz 


Price 

$49 
$49 
S59 
$69 
S79 


Models  to  cover  every  practical  rf  &  If  range  to 
listen  to  SSB.  FM.  ATV,  eta  NF  =2  dB  or  leas. 


VHF  MODELS 

Kit  with  Case  $49 
Less  Case  $39 
Wired  $69 


Antenna 
trtput  Range 

28-32 

50*54 
144-146 
I45't47 
144-144.4 
146-148 
144-148 
220-322 
220-224 
222-526 
220-224 
222-224 


Receiver 
Output 

144-1 4a 
36-30 

144-1  4d 
28-30 
28-30 

27-27.4 
28-30 
50-54 
28-30 

144-148 

144-148 
50-54 
28-30 


UHF  MODELS 

Kit  with  Case  S59 
Less  Case  $49 
Wired  $75 


432-434 
435-437 
432-436 
432-436 
439.25 


28-30 
28-30 
144-148 
50-54 
61.25 


SCANNER  CONVERTERS  Copy  72-76. 135- 
1 44.  240-270, 400*420.  or806*894  MHz  bands 
on  any  scanner.  Wired/tested  Only  $88. 


SAVE  A  BUNDLE  ON 
VHF  FM  TRANSCEIVERS! 


FM-5  PC  Board  Kit  -  ONLY  SI  70 

complete  with  controls,  heatsink.  etc. 

10  Watts,  5  Channels,  for  2M  or  220  MHz. 


While  supply 
lasts,  get  $60 
cabinet  kit  free  when 
you  buy  an  FM*5  Transceiver  kit. 
Where  else  can  you  get  a  complete  transceiver 
for  only  $178 


For  SSB,  CW.  ATV.  FM,  etc.  Why  pay  big 
bucks  fora  multj  mode  rig  tor  each  band?  Can 
beJinked  wrth  receive  converters  for  transceive. 
2  Watts  output  vhf,  1  Walt  uhf. 


For  VHF. 
Modet  XV2 
Kit  $79 
Wired  SI  49 
(Specify  band} 


For  UHF. 
Model  XV4 
Kit  S99 
Wired  SI  69 


Exciter 

Antenna 

Input  Range 

Output 

28-30 

144-146 

28-29 

145-146 

28-30 

50-52 

27-27.4 

144  144.4 

28*30 

220222- 

50-54 

220224 

144-146 

50-52 

50-54 

144-148 

144-146 

28-30 

ZB-30 

432*434 

25^30 

435-437 

5<^54 

43^*436 

61.26 

439.25 

144-I4a 

432-436' 

''AddS20for  2M  inpui 

t 


V.  -fc  ti 


VHF  &  UHF  LINEAR  AMPLIFIERS.  Use  with 
atK>ve.  Power  levels  from  10  to  45  Watts. 
Several  models,  kits  from  $78. 


LOOK  AT  THESE 
ATTRACTIVE  CURVES! 


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^" 

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1 

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~^     i«4k      ^H0       lari      4*» 

Typfcat  SelecUvfty  Cunms 

of  R&coJ\/srs  and 

Heiicai  Besormto^s. 


IMPORTANT  REASONS  WHY 
YOU  SHOULD  BUY  FROM  THE 
VALUE  LEADER: 

t.  Largest  s&fecifoo  of  vtit  and  t^t  kits 
in  the  worki. 

2.  Exceptions f  qualify  and  tow  pnces  due 
to  large  volume, 

3.  Fast  delivery:  most  kits  shipped  same  da  y. 

4.  Complete,  pfotesstonat  instrtjction 
manuai^ 

5.  Prompt  factory  service  available  and 
free  phone  consuitation. 

6.  in  business  27  years. 

7.  Sett  more  repeater  modules  than  all 
Other  mtr^  and  have  for  years^  Can  givB 
quaJfty  f&atures  for  much  lower  cost 


Call  or  Write  for  FREE  CATALOG 

(Send  $1.00  or  4  IRC'c  for  overseas  mailing) 
Order  by  phone  or  mail  •  Add  $3  S  &  H  perorder 
(Electronic  answering  service  evenings  &  weekends) 
Use  VISA,  MASTERCARD,  Check,  or  UPS  COD. 


amironics,  inc. 

65-D  MOUL  RD,  •  HILTON  NY  14468 
Phone:  716-392-9430 

Hamtronics  -  is  a  registered  trademark 


^See  List  ot  Adv^titsers  on  page  114 


73  Magazine  •  June,  1984     129 


DEALER 
DIRECTORY 


Cui^-CT  City  CA 

aty  CA  aO2J0.  aiO-SOOa.  Tmda  4l&ia6B  San 
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Fontana  CA 

Complete  llns  ICOM,  DsiiTtwi.  Ten -Tec, 
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M335,  8^3.77 14. 

San  Jow  CA 

Bfty  vei^f  new«tit  airiAtciir  rmd&a  ^ote.  New 
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v s^ -^ 

New  Ca-de  DE 

Futdry  AuthKjrJzed  Ekditrl  Yteski.  ICOM,  Ten- 
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PROPAGATION 


DEALERS 

Your  Cdmpairy  name  and  mesfsage 
can  contain  up  to  25  words  for  as 
little  as  SI 50  y^ady  (prepaid)^  or 
$15  per  month  (prepaid  quarterly) - 
No  mention  of  mail-ordar  busing 
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and  payment  must  reach  us  60  days  in 
advance  of  publication.  For  example, 
advertistng  for  the  September  "84 
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Miil  to  73  Magazine,  Petsrbotougjb 
NH  03^,  ATTN:  Najicj^  Ciampa. 


J.  H.  Nelson 
4  Plymouth  Dr. 
Whiting  NJ  08759 


EASTERN    UNITED    STATES    TO 


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As  Next  higher  frequency  bend  may  also  be  useful 

B=  Difficult  circuit  this  penod. 

First  letter  =  night  waves.  Second  -  day  waves* 

G  =  Qoodi  F  =  Fair,  P  -  Poor  *  =  Chance  of  solar  flares. 

isChai^ce  of  aurora. 

NOTE  THAT  NIQHT  WAVE  LETTER  NOW  COMES  FIRST, 


SLN 

WON 

Tije 

June 

■n-u 

mi 

S*T 

1 

F/G 

2 

F/G 

3 

F/F 

4 

F/Q 

5 

G/Q 

6 

Q/G 

7 

F/G 

8 

1        F/G 

9 

G/G 

10 

G/G 

11 

G/G 

12 

G/Q 

13 

G/G 

14 

G/G 

15 

F/G 

16      17 

F/F  1        F/F 

18 

F/F 

19      20 

P/F         P/F 

21 

P/F 

22 

P/F 

23 

P/F 

24 

F/F 

25 

F/Q 

26 

G/Q 

27 

G/Q 

28 

G/G 

29 

F/F 

30 

F/F 

130    7B  Magazine  •  June,  1984 


-Ste. 


^'AJeau 


lHBSaO'3 


irea  ot  paying  too  mucn  lor  your  Ham  geai?  Tne  new  generation  of  Yoesu  higrvf  echnolog 

equipment  is  designed  with  you  in  mind!  New  advances  in  computer-aided  design  and 

robotics  manufacture  help  you  save  money  while  bei  ng  assured  of  the  best. ..  from  Yaesu!!! 


p 


fordable  Excellenc 

GENERAL  COVERAGB 

Continuous  coverage  on  RX  from  500  kHz  lo  29  99  MHz  in  50  Hi 
steps,  wilh  easy  modification  for  MARS  TX  outside  tne  Ham 
t>ands  WARC  bonds  toctorv  installed. 


ACCESSORIES  FACTORY  PACKED 

Eiectfonic  keyei,  600  Hi  CW  filter,  speech  processor.  AM  and 
FM  unifs,  all- mod©  squelch  Woodpecker  noise  blanker  and 
receiver  preomp  all  mciuded  in  fhe  base  price,  not 

expensive  options! 


FULL  PERFORMANCE 

Full  CW  QSK.  full  100  worts  output  ai  100%  duly  cycle 
{SS&/  CW/FM).  and  full  nnicroprocessor  control  with  dual  VFOs, 
eigtit  memories  with  bilateral  memofy  VFO  swap,  and 
personol  computer  (CAl  System)  compofib^lity  moice  the 
fT-757GX  a  winner,  ot  home  or  awav 


FT-757GX  ACCESSORIES 

FP'757GX  Swjtchmg  Power  Supply  FP-757HDHeovv  Duty  Power 
Suppfy  (tor  100%  duty  cycle  operation).  FC'757AT  Aytomofic 
Antenna  Tuner  with  Memory.  FAS-l'4f?  Remote  Antenno 
Selector.  SP-102  Speaker  with  Audio  Filters,  MD-1&e  Desk  Mic. 
MH-iSfl  Hond  Mic  fiF'232C  Computei  Inierface  Module 


■vv 


panli 

ULTRA-COMPACT  DESIGN 


Ctiip  components  instoMed  byYaesu's  ossembtv robots  signify 
cantiy  reduce  circuit  board  size,  resumng  in  a  rugged, 
lelioble  transceivei  with  a  weight  of  only  dSOg,  mctuding  the 
stondord  FNa-J  battery 


HANDS^FREE  VOX 

A  VOX  (voice-OCtuoted  Ironsmit]  unit  is  buitt-in  allowing 
hqnds-free  operation  when  the  optionoi  VH-2  Headset  is  used 
Ideal  for  tower  work,  public  safety,  or  other  applications 
where  manual  PTT  control  is  madvisable.  Level  control 
provided 


FULL  FLEXIBILITY 

Built-in  S-metef.  thumbwheel  frequency  progromming.  HL  LOW 
power  swttch.  busy  channel  and  transmit  indlcotors  are 
stqndofd  DTMF  Encodef  versions,  as  well  as  220  MHz  and  440 
MH^  iiness  are  coming  sooni 


FT-203R  ACCESSORIES 

ns^7  CTCSS  Module  FBA-S  AA Cell  Cose.  YH-2  Heodser,  mm-12 
Speaker  Mic.  FNB'4  High  Capacity  Bottery.  PA-a  Mobile 
Adapter.  MM&-2i  Mobile  Hanger  NC-15  Quick  Charger  AC 
Adapter  FTT-3  DTMf  Keypad 


your  Yaesu  will  get  you  through! 


Prices  and  spedticatlons  subject  to  change  wiihoyt  notice  or  obligation 


w 


AESU  ELECTRONICS  CORPORATION  6851  Walthall  way,  Paramount.  CA  90723  (213)  633-4007 
'AiSU  CINCINNATI  SERVICE  CENTER  9070  cod  Park  Onve.  Hamilton.  OH  450^1  (513)  a74-3100 


S*930S  Ootlofia}  Accessories* 

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