1997 Winter - Arrow Antenna

41 Pages·2013·35.86 MB·English

hamb.

FOR AMATEUR RADIO DESIGNERS AND BULDERS

N7KSB:
A Fifteen-Dollar
Frequency Counter

WINTER 1997

‘SEGOND GLASS POSTAGE PAID AT OENVER, COLORADO
(Casas fa approche and as wef

Jah up he deal of this Winter, 9 ise
(oF hembra, no esbion fo Ue oa

‘inion of this pewotial bas appeared
tobe viable Ihave spoked loa ew pub-
shes ses nated am inlerest, at
rene 1 bo ts ome om sal, auc,
Tess ome wb bn is own equipment
{hace sou etic tn eo te are
inthe heli?) Lake uy tbe ede

t,t simian les nog aber

| QUICKLOOK Dara sneer ~
Temp. Coetilents of Capacitors

ene

Hanke]

A Tepe) Py
Tenseatech

lecttonie Data Book for

Homebrewers and GRPers
iy Paul arden NASH,

|. ust $20 #286 sping US
ea, AEN Som

‘well-meaning covesndenss fe a
fersand neon shwerig ice)
wet mpave the masz. | ss
‘hey jas have nx be ste o
ing whats wally pete bere. We
“appreciate deeply tae ows bei’
‘ee reer be Hic ems at
albeit roe mls well wor the pace.
‘Wet we donot moed se plety of free
“nice, Wendin wil he or
‘geo thet convene whoa rey 6
Pl thei eas amt practice. Unfors
ately of ale ermtpbutors dea fer
inyreements eb “Lam 0
Ft ides toa Teme of res
take the magazine from here Sou
limit?

ise understand tha Ttepor eis wih
‘ut titeraes,libough 1 Wash ony the
het for the magne, sad wereore do
ceonfons era sapien for
the sake the ser sn he Fate
‘his con uf De dy Fat Tea year
it snc wll continu bing il
‘he mei and has nse The
Tevet wil be he eaders wh get te
oa or forums

nds issue, we get dhe pease of ie
{nga cootibuion fia «great guy aad
radio desigoet in Rustia, Igor
‘Kenl,UA6OCC who sows us ay
‘Besincd VFO achat of gaat phi.
‘uation, Ou thank al Bl Cure,
YRSAWC, Len Sek, NTKSE, Geog
Rosenburg, KC6WDK, Jin Lee,
WeVAT, und Bil Copeland, WRORVE,
‘These eelemen rea grea! espe of
soya ow es exit os
They give all of us who care about
tren resem boge. 73, Gears
ontent

Teter 2
Calling CO) A Meters (Kic Review): Marshall Emm, AAONT/ VKSEN 5
‘Oas-Chip DC Ressiver Bill "Serooge? Currie, VSAWC
Low-Cost PLL rogues Spicer fr ORY gor A Wen

A Fite Dollar Frequency Counter Lew Smith, NTRS

il Seng Meier. George Rosenburg. KCSWDK.
“Thos On Taco: James Gee, WEVAT

226 Hindi le hier Bde Nassn ps BN Copeland, WEORVE 37
Tiseied Ade 38

‘FOR AMATEUR RADIO DESIGNERS AND BUILDERS
WSiNtLI, B® VOL SSO.

senna Sec MBC oe a
Meng We Copco a

air Ofer, Ais Racin UE) DIG mena co

Thins 8 HP aed una Sng Po Rm PA
‘Sie pers Caran SEI neigh S15 C3 omen ese)
QRP KITS! — nwso20

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641A Probie St.
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call 960-415-0808
or e-mall at
[email protected]

Use Ladder line? You need the "Ladder Grabber"!

Kits and DOS Software for Hidden Antenna
'usiness and Ham Radio trom ] Peanruattaieeine| Apert Cen
Milestone Technologies. | | Gar" ur teswes Raa hess

sR cers dase,

Rte SE

etiam com Se aS
KIT REVIEW

CQ 6...
Calling CQ 6 Meters

Marshall Emm, AA@XI / VKSFN
24608, Moline Way, Aurora, CO 80014
[email protected].

The popular Wisdom isha 94 meters
vill he vey aco ance the ae so
‘dete. Tatras sense Because
‘isis ihe ome bund with TF propagation
fis cise to te
thi
hier tamds ce HI ue ew 10.700) ae prcvalouee of general coverage
svubble bu asoexpeuste BtTortbve uanstiters with FM, the 2081 mle
omsidering sn exominn of thei bad 1208 “ae eenmn for se abone
opahiivies here an araenve aa S2MHe
reasonshly pice ateruaive™ T-KIL. THE TRANSVERTRR CIRCUIT
ebitdvison of TEN-IEC, lofts ile simples foe, a tansverter
286M transceiver itandtwo rmsverierrsguresenly ea lr ac ive
its, ail of whic ae very reavonabty The [NA septal oil at Sr,
pay ‘which is coup to dene hance
‘The wo tmasvetermoelv re fore diods iver. Wigher temnsmtied
‘witht 284 (ode 1209} on 20M (madel-fsequcncies (eg EMiIe1 mx with
1206) tuascriver,Iebote te 2M mel SENT to prove ono 64 lower
larwworscon. Fe already ave an all received frapenctes (eg S282) mie
rode 2M trnsciver (ote that i will with SUM fo provide opt oa 28,
‘work well with an, but your GM Fura emipe nt are ned 40 be
‘etsy il of couse belinite to FAD. added heer a amserters wel Ls
Scoot the model 1209cover teenie transit power tn nat mst be
S0-SINLIz band. n coast, many HP conlled (and of course swan
‘ansciver wll nly oma cverainge frequencies must he filesed nt). In
OF SOOKE cr lesen 20M — tnasvere! price sfareasi ove teat
bandh wa beth same. And, pnsity converter wth low power level and
felling tenor of ings when iw any the doe canverted sigma witha
Aleyelopes) amd despite Ihe current sundard RF power amplifier ti than

ot 1209 rd Mot th the hk ben te wr

‘
to doignamiser tat bande tant
power evel In he 1209 input poner is
Souk ice a $2 Ohm duns tow, with
soul port tapped al wa wresstor us
input forthe ier the manta describes
he sangement a a ape atest)
‘The conerid signa is amplified by a
pp of 2801971 easton ven Be a
2801970, ll muted on util
eatin about which more wil he id
Inter Sinn op len ix performed
thoowgh par of Kinnear core RF
‘coal, hich enor gls oid
ad which skool ae mea
fs being te most cat part of te
‘hole it

These mst lobe see wy sch
beeen insignis,
nl he 120 ds ts hy wwchng cnt
Selig si arf aa ator
that fro a RF testi cat Patton,
is visually instantaneous, and switehing
tine is detormiaed by the valve of the
‘opacitor— about whieh mire wil Be
saute

nally, the miner and soitehng
ir ince ene iy sail
Tenses vceive, he £209 indus a
reeviving preamp hated on @3SK 122
(StS, widk a FET buffer amp after
Sigua conversion thot provide moe
aint segue acount De eas,
Tt a 3 1 ener excoptbs

THULIN THF 1209

Ter some reason Tc expecting
TEN- ILC bil tobe in the Ros Raye
cxegory, onl <0 Iwas smprised by
ouple ef things. The cieat tour as
‘osble sided, and solder macked with
aout pts overlay silk-screened oa the
‘oniponent side Bor ody, te fois in
‘Seville lected a aid ic expense of

Plte- ehrough holes, soit is necessary

for dhe bidet inst ho pases of
‘so cones tbe goad line on the
{olds he tat Tb comer
Se caled in"

Te maa eve oo beds
tes por gud ant cela
sumo of crs beyond te hte
{sere a scat eta shootin
Stomple of ctl ee ee sgl
tees yc din agama is
{EB baste ne nae
scam CH. Progen ae
Dried weal elorn atoms
me ins

in ome pes he manual goes
way to ach dt ten a tings
nly aggre 0 what ou ar
Suing tthe tne) race
{teste etal te
sehen read papa ling me
‘api se, how wana eoapeneat
Tabi ett asd goon te nese
tid spelen Sabi, ow il
conipncnt xs pe he nace
sep3.ab labore

Aa was ao ang oe
tf nating ed ati
has arson and aa
etn lee ce oh te oa
tml woe 80 239 a ae on ad
Sie iP cee ound alo
dove to gets sled and connect
Pie rol of the sors is cat you
sonnel sd sca hong be
ete re bfine sting
the Kin your en spc ak
‘Mlowaaees and ching the wder uf
‘pemdons whee ace!

seem tobe deeling vermutn
the docmeatina prods Bee
the nts san ce ta een
toseecn a secs Kita ttf
tna; te experience level of he
Tuas is abs! inetevan Aa is was
inion Tie gerne problems,
slot eich ce wi be ae?

‘on dee go that cyte,
Progress sip mesure ad the dn
oes teuter ile ace. You bl tan
steel gal teste sage bere
proven Wo be nex. par rem he
Sougle RF urphier MMIC, there are no
Integrated circu, few caso wad (and
they we eu) and ile confsion inthe
sales of capacitors thse being hice
omon problem ates.

‘Migoment is ery eaighforwatd
provided you bave some means of
‘ait tbe crystal seater. 1 you
‘ow serene who hea GM maceiver
sb dsl ea vey dob
awn the ose a epot sym
anasto dvs a i bly sme
ame up approximately 1K,

“Then ether sligmment steps ae 1
eae recived signa strength and pe.
heap power, ad in bots aes Wha
fs eae for is relative, aot absolte
anu Sor exe ymca se
a HF water to peak the anseiter
Without woaving about sbether the
Indicated power is an accurate

THREE PROBLEMS {SHOULDN'T
AVEBAD

Remember Ireaoned big heats’?
A sapiee of ight ange aluminum wid)
six compooert ces inane side and vee
‘mounting hoes inthe oes. There was
al ove way iteoald posit eiatllad,
fd thas what shown i he phot,
“Ta ca tits thon ntl
in theca wiht leigh Ire
shen ania fale] etn pn
‘Nall w TEN TEC, ad the xh ch
"Det ke ei bo
song way? When repli ar dat ws

vy hai ka ie, i Wel
Irchad afew of thee i we rg we
otto al tf ec.” They se me
ow one and hee splaectnent dias
‘sean ening hr eae
the tea

“The cond se til poblans cave
Vig afer the ner hens. ws stl,
fd fomtly th wee ase wth
2 ingle pine ell 1 TENT LCL
Sea ot et the nal mpi te,
‘nce hal lh the 2 po
Tally elke tie men! dive Be
rmaiver hcl be aot SOOM and
the yn te the meer ts nee
me by U0 ally Imes
ana he CA beter lw
‘ose canighy a i vo Ut kw
wher tinct he CEE OES
fr to BODma, The tech sid i did't
‘pater jst adjust for 7S¥ on the base
‘9 QI ad O12 So mc sper that
have task why sian te mans
Tndeod, he natal renghirs that many
bolder: won'rhave malin ha an
ccuraely measure cutent that ee,
td instead of having you measure De
Soe te PA ey tell you how
tulle weber an amueter shunt

Finally, while the trmaseeiver
pesfomed peefetly on CW aad EM
nek thet SSH aad we eves
ise Tk sna ike me
ofthe Bate Sir alten “ste
According to the TENCILC tech, Ure
yee the tings toy. ist conta,
75¥ oo the tse of O11 12 which hd
Nest pul a4 7ul cup aeross C8 (onthe
iba a he TR sie i responding
1 quickly 1 oice peaks). whieh feed
heal 0% of de problem and gave me an
‘SOU imal ar aa est intl if
sot clean. Finally, change RS to rece
‘hesernint et RE ode mines A ee
snl ise. But ne wp have to
Sh Why ia tint SSE” Book™
WRAPPING CP

A umsveter is aprety cum pice ct
saqipocot— dhe ony conto ite on ff
‘sith ao theres mot a oto say about
psa beyd config that it ks
‘Sadvertsed, Whar you patina
2M end cams caion 6.

"TEN TRC saya there are toca
reams firwal inciting est
Seek in the 64 arson even though
they sme dhin he 2 onl 1208)
‘ero sel alexa sich
Delve ae to pig tad npg cas
ter time yr wa ith on 2M
frwest 2nd 6

‘Antena for 6 as relatively esey
bocstse they ave lative small, For
rane aware verted aly aout

Steet ong Ws also a ey hao Fa
‘momerpency sbstit a by locking st
‘Ramone relansips. Td dh mat and
rested dat my 30M ipl should wore
bn, ant indeed it does, Th 0M dipole
is marginally beter atthe top of 6A AS
wwith2M theses a dtoct standard that
antenoapoatization sould bs boiz
fr CW and S83, adverts oe FM, 30
you nay want equ youre wilh to
xt aeons,

‘TENTH hy ie it her, aT
have say tat wba Tedd sper T
foal trl evry knee
stall jr fom he dacamentton
Problems, 1 hase sn hesitation in
Fecommending it at an easy and
inexpensive Way to getento 6

‘NEW
HAMBREW

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‘OUT OF RINT.

Thee es re one
The One-Chip
DC Receiver

Bill 'Scrooge' Currie, VK3AWC

PO Box S197, Mordialloe, Vietoria 3198, Australia

have always hoe a hit of 4 “is
sea ad when Trscenty eid ee
TATICTO4 chips a ten cents each 1
coulda’ resi the callenge of ake
reeves one arene of ee
hips

‘The 7AUCUU is realy age ebip
containing ity eerste IC dentin
High speed CMOS, aud the C denoting
vmbutleed, CMOS inverters cam be Bi
‘ed ino the near mode by nealing &
Feedback essa ter ouput input ant
series npr esis, snl © op amp
configuration

Sone experiments prove that mt only
would the inrenereanyplify aud fe
quencies but they would also handle RF

10

signs. A pain of about 10s availabe up
WwI0SLe urs,

De Receiver

‘eres iret emvenem eee
fe metes coms am RE te VIO
wba Buller, uprodct detector and
bh pa dio suse

The prot detetor usc to diodes
ands the ony stage not comand on te
chp.

“The VRC wes a coisa and
res fen elo 30 62
MIT. The rly large sing i bana
hy sing twa gang captor, one see
tin cach end of the sonar Tide