1-76.pdf

J20419F

A PUBLICATION FOR THE RADIO AMATEUR

ESPECIALLY COVERING VHF, UHF AND MICROWAVES

VOLUME NO.8

SPRING

1/1976

DM 4.50

VHF

COMMUNICATIONS

Pu blil he d b y :

Verlag UK W-BERICHTE. Hilnl J D a hi l)l oHG. 852\ Rdlh 8berg Erfanqen. Zu m A Ul8,cntllurm 17

Fed Rep of Germany Tel {091 9 t) 91 57, (091 33) 33 40

Publi ,her l :

T B.llan, H Dohlvs

Edito r, :

Terry 0 B'Il,ln, G3JVQ ClOBQ, respcoe.bre for the le_ t end layout

Roben E Lentz. DL3 WR. responSIble for the l ech nlc a l coeteote

Adv e t lil ing mana ger:

T Billa"

VHF CO M MU NICATIONS.

the ,mernatlonal ed, tlon of the Gorman pubhcet.on U KW-BE AIC HTE. ,. II q uarter ly amateur

-eo.c magazmo eeoee.env cillenng lor the VHF UHF SHF technology . It " publo lhed m Sprong.

S",mmor Al.Ilumn lind W Jnl er The aubecrrpnon price 18 OM 16 00 or ndl.ona l equ.ve te nt p e r

yeo' Ind,,,,dual comes Me eva.tebre ill O M 4 SO. or equlVale nl. each Subecnpncne. orde rs of

ond,",d"al ccc.ee. cwcneee of P C boards and ec vert.eed ecec.e t co mpo nen ts, ad ve rti sements

and con tr,but,ons to the magaz,ne should be addressed to the nat ,onal r epr esent atille,

Verla g UKW·BERICH TE 1975

All rlghts resc rl/cd Ropronts. translations or c xtracts only ""th the wotten app ro val of the

pl.lbl,sher

Punted on the Fed Rep of Germany by R Reichenbach KG . 85 Nueenberq . Krehngltra~e 39

VERTRETUN GEN

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WIA PO Bo> I!IO. rOO RA'" VIC 31~1 Til 24-8651

_ GfI,m.n~ PSt,,",IO JO(~5·.53 Nu,nboo' g

_USA

S........ J .cobton. S ,-Hon, O.ml'kommunga'd"n &8 5·13501 VELLI NO£ T" I MAlmo ~104JO

PotlQ"O KOP"f\II, mn I~911~

CII"".,ne M,cllll . F!> SM F·69 PARL Y L"I P,I' "

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V"rl.g UKW-BERICHTE H 0011111' OHO. D·8~13 BAIE RSOORf, J.Mlh,,1l8 I~ Tel 09133·33-10

KO<>I"" PotllClleckk onlO Nurnt>e,g 304~5·S5ll. Comm .."blnk ['I.n.... n 820· 11!-l

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ST[ "I (110 M) V" Man,,~ ! 5, 1·...,I :lol MILANO, T.. I (02) 21~ 7891, ceeie CorrPOII 3-'U'l6l\

P W, nll LX1CW Tt~"'''lon. OUOELANGE PotllClI8<;kk onr o 17005

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H"nnlno Th&o LA ~ YO POirtlOk. 10. N- 132~ LYSA"'ER POkrQ"okonlo 3 160009

SA Publlc.hon. PO Bo . 2232 JO HANNESBURO 2000 Tel"phone 22 la'l{,

Julio A P" " ' o Alonto, EA~CJ, MAOAIO'I~, OonOlO Co".. 58 SO·B. lei 283 8J ~

S.....n J.c(lbwn S M7on, O,ml'kommllng"<l"" &8, 5·2350 1 VELlI NO£ , .. I 040·~10430

Pa.rO"o I309M·~

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ARBBO. ..., Thorn lon C'n OLD COULSOON, CR3 I LH

VHF CO MMUNICATlONS Ru.. P,lIl bu ry fI ']1 .8 "0,,,,, A<1(1.'lOn W '1 UCl

91~ 11< 0 '1 " Ma,n 51 JA"'ESTDWN N¥ IHO I r .. 711,· !hi . b345

C O'all K1CHV 2!lOI 18811> 1.... $E No£-11 B£LlEvtJ£ W,,"" 96007

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USA·E .. I COSI I

USA· Wnl eo.. 1

'I'''90I I I WII

A PUBLICATION FOR THE RADIO AMATEUR

ESPECIALL Y C OV ERING VHF, UHF AND MICROWAVES

VOLUME NO, 8

SPRING EDITI ON

1/1976

P. GOSChlberger

SALZ BU RG 1 - A Fox -Hun t Recei ver

2 · 12

OE 2JG

lor Ihe 2 m Band

G, Herr , Of 2 HXL

J . Kestle r

Match in g e l fe"lI ls l or SChOIl " V Atng Mlx'H S

13 • 18

OK t OF

J. Gtlmm

ATV Inlo rmaltOfl

19 · 23

A TeUert

FM-Handheld · Transc•• ver tcr Ih e 2 m Band

24 ·32

OC3 NT

DeB vr

K. Willi

A Num er ical Indi cation Sysle m

33 ·49

A Si m ple Diglta' Clock

SO ·"

DC6YF

T. Biltan

Ant enna Not ebook

55· 60

OJOeO J G 3JVQ

Home co ns truc tion 01 amaleur rad io equipment il becoming mo ra and mo ra limited 10 I ha

UHF and mi crowave band s. Ther e Is, l or Insl ance, an In crea sing inte ,.. t In ATV Iran ,mlliioni

o n tne 24 em and 13 em bands . Unfortu n.,.,ly. Ih.tormer band canno t be uaed in lOITle are..

du e to in terfe ren ce trom h lgh -pow e' radar 11alt on• . VHC COM MUNICATIONS I. to contlnul to

try a nd br ing proless ional tl c hno log y to thl radio amltlur, and to luist him in the homl

co netruc ncn 0 1 eq uipment eo e Intlnnl, lor these hIgher bands .

I! i, ho ped thlt the I llpe rUtn Ce gaI ned at the hIgher microwav i IrlQuenClea , especlllly by

Bnt ., h amlllY"'. can l iso be p llced I t the dIsposal 01 ou r read,r• . Dr. oain Evana , 0 3 RPE

hI S o ttered to 1 $1 1" us especially WIth respect to the 3 c m band (10 ,0 to 10.5 GHz).

A VHF COM M UNICATIONS 1119 76

OJ 6Pl

K. Wit"

SALZBURG 1 - A FOX-HUNT RECEIVER FOR THE 2 m BAND

by P. G6 Kh iberger, DE 2 JO a nd G. Ha", OE 2 HXL

Tt1e author. have de signed a lOll hunt (OF) '''<:ltver thai is SO ealY to contu uct Iha' eyen

beQinnef. ca n expect r10 d iffIcu lties The de sign 0 1 1t1I1 receiver retuUed Ir om considerable

praCheal experience dUring tcx hun" (DF·compe llllona) and lull l1l 8 a " mechanlul and eiee-

tr i c,l demands made upon II. Special aU8nlion ha l been paid to the 88M 0 1 o pera tion re-

qUlreel during lO ch BellV lllel,

As ha s been show n in salzbu rg / Aull rla, Ihe rece iver " very SUll able l or co nstruc tion 8' a

Clu b projec t. Sin ce no apecial components ara requ ired . Ihe COIl 0 ' co nstr uction it very

low, mak.ing it SUi table fer younger amaleur, and SWL's For thi s reason , no co mmerci all y

a ...a ilable case i' used. but ralher • ve ry dela,l8d descr ipt ion il 10 be gi ven l or the eo n-

etroenc n 0 1 all parts in cluding case

0 1 cou rse, all rad iO amateur, and co nst ruc lors nave lull right s 10 copy the deSign and cc n-

struct th iS receiver. However, Ih e Conslruc hon and sale 0 1 th is rece iver for pro fi t I' not

allowed ,

A 9 V IranSlstor batlery IS used as power supply_ The c urrent reQUlrltmenll are In the o rder

011 2 10 15mA, The betlery is accom modated In the hand le 01 l he rece iver . An HB9 CV

anlenna is mounted on l op o f lhe rece iver ; the ou ler parts 0 1 the elemenll can be ex -

chang ed so tha i fleXIble elements ar e used in dl llicuft country IUch a. In woodl and

lores ts, wnerll8SSll fla r elemenl s are used when in tne o pen (see Flgu r. 1),

Fig, 1: DF·rec . ,....r SALZBU RQ 1 for 2 m

~ VHF CO MMUNICATION S 111976

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