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The Wireless Institute of Australis* Tasiaam. an Division
November 1963 •• Ifon-bhly Bulletin Page 3.
FEDEIViL . GOM^LW.
In-April 1963 the Secretary-General, International Telecommunications
Union, Geneva, invited the Aus'brali. an Govemraent, •fcoge'bher •ui'fch all Member-
Adaiinistra'fcions, to send a delegation -bo the Extra-ordinary Adminis'brative Raciio
Conference to glloca'be bands for Space Radio-comaimica'fcion purposeg which -will.
open in Geneva on 7th October -bhis year*
To 'deal vith px-'oblemB which wLll arise as a resul-fc of proposals for
frequency allocgtions for -bhc- Spa co Service, Postmaster General Davidson fonned
a special M Hoc CoiTirfli-btee to -which the Wireless Insti'bu'fce c"l' .'^st.ralia -was
invited as a voting raember representing the Ainateur Service,
Know as the Radio Frequency Allocation (Space Ser'v-icc) CoRuni-btee i-t
has worked over •bhepaa'b raany months to de-bermine tho brief for -the Australian
Delega-fcion to Geneva, At thGnumerous meetings lield in Melbourns and Ganbarra
the Wireless Institute of Australia has bea-i represonted by Mr. Ar-fchnr Eme&o
Tinkler ViyZV whose expenses have been paid Ty "the CTOVemmen'to
As a result of l-iis expert co-operation and his kno'',2dge of the prolAems
involved during the delibera-bions of tills Gorani-fctee, the Qovernrnen-fc invi-bod -bhe.
W. I. A, -bo send an observer representa-fcive wi-fch the Aust. ralisn Delegation to
Geneva. Thi-s was gccep-bed and after discussions ^ri-th Federal 55xecut.ive I'iz-eTiril-.ler
agreed -bo undertgke the represen-fca-tion of the Amateur Service at the Conferencie,
Deliberg-bions in respect of -the Space Service requirenen-bs invoLved no.ny
services and therefore of nscessi-fcy the ac-fcivi-fcies of -the Cornnutt.ee VQTQ of Q
restricted nature, Mowever, -fchrough its representayive the U. I,, A. kept. clos^
wfcch on theproblens involving our VHP and UI-IF qssig.'anentis and, at •bhe fi1-',al
meeting of the Connnittee, the status quo was nain-bained,-,
Never before has the world- -wide Araatem- Service faced si.ich problemcs
relative to its frequency assignments as it has fsced in the l^et decaciQ and i-b
rau.st expect to face even groa-ter probleins ill .t-he future. To deal i-ri.-bh •those
problems representation a-b Ckivernmen-b levol is irapera-tive and it is -the role of
the Wireless Institute of Australia to act for TO aniat.eurs,, The Ins-fcitu-be has
pledged itself -fco do this yi-fch all its inigh-fc despi-fce opposition fi-on Misinforined.
sources, contending that it is zuigble to do a^t.l-iing effect. ive, . I'b has
successfully caiapaigned to have represon-fca-fcion at Governmen-fc IGVGI o::i frequ.Qn.cy
allocation coarait-bees and the work of its representative' has been praised ly
responsible officials. Because its mem'bcrs "belong -bo s servlc" v.'ith ciu.to i±de
overalL frequsncy gUocations it is in -fche bes.t interes-bs of all o-fchor freqzier. c^
users that -the Ins-fcitu-be plays its effoct. i-we. part in fonmla-bing any plan for
the successJE'ul engineering of the frequency spectrui-3 on an equi-fcable basis,
To say that the Insti-tuto can do nothing abou-b amg-fccur probleias is
foolish. To say -fchat it should do everything in i-fcs power -to pro-oec-b the araateur
frequency allocations is realistic thinlu-ng^ The ill-informed few vho say w are
unable -to do anything would be -bho first to say ... "T^y didn'-b the W. I, A» do ^
somQ-bhing"...... lf -the future wecked our cl-iancea and ua indeGd had. done noti-u. ng^
. < . Federal ExGCU-fciveo
STRAXS by VK7EB
Heard -btot Jack Batch, (VS7JB) is con-berapla-i. ing a aove - ray spies see^i to
think it may boin the Sorell area - he positively drooled g-t •the lack of power
noise doyn -there during the Jam'boroe of -fche Mz'o
Anyone van-fc any pain-b? I believeTon (TK7.'U-, ) has "gallons" to dispose of
- just call up at Ton's place, take a good paint bi-u'sh vheh you go gnd I'm ^ura
ho -will accomraodate you. ^ ^
Hon. Treasurer going on holidays (again) hope the VR.-bhor is es IJ.n.^. "c
you as it was to me»
Anybody desirous of a sea-grass stool for -bhe sly'i. ck? J\i st. place you-..^
order with'Nicholls Inc., what will -bhat vri-ly old fox t^irn to ncsA? I wuj-dr . ;;
mind one myself bu-fc he'd probably sock ne wi.-fch the prlGe,
Don't forge-t to make the IIamfest. a raus-t cliaps - bring l"han or the^ girl
friend along (not both) reraeniber i-fc is up -bo you -bo nake it as good as the larA
ons - or better.
SCRAP I4ETAL.
"Son't forget we s-bill want scrgp brass, lead, copper or alnminium -
also rags. These can all be sold and proceeds vri.il go to •ths Club House Func'»
The Monthly Bulle-fcin of the Mlreless Institute of Au.stralia,,
Noveaber 1963 Tasraanian Division, Page 4
TECHNICAL ty D. Thorns VE7ZAJ:
"l&th the coming summer, the season for hidden transiait-fcer hunts, hamfes'bs
and field days begins, A transistorised 144 rac/s superregen hcis alreadyvbeen
described andsoi-AliLs nonth WQ id.ll describe a 144 .rac'3 elemen-b Y^agt, and a 3.5
rac/s loop suitable for D. F..Working.
3. 5 rac/s~"Puiii Handle S ecigl'1 a s "used ly VKT^G
Plastic tube wi-th
L2 f , ends sealed.
r'..
t <
•i"r"' ^.F...^.-^S;j...^^....^ —^..^ v,
^i... / ! i . 11__ ! l L. ••'
~LT
4" of Ferrite [
:1..:"J. ..\...<
Rod » 01
•t )•—- -Af-
70/70 pf
U 26g» plastic covered vi.re
^1 Coax
close wound over entire Cable
length of ferri-be rod,
L2 2 turn link wsund round
asentro of Li same yire
as in LI
k"'
Gl 70 pf max. per section Rx antennan coil
(Modified cania-fcure broadcast gang)
The ferrite rod is placed inside a length of plgstic tube. A short length
of me-fcgl tube is fixed to the cont. re of -the plas'bic tube for a mast, .. The coax catiLG
is fed down this mast. The wires from the coil pass -through a SEQII hole drilled in
the plastic •bu'be. The ends of the tu'be are sealed with a disc of perspcx. 'The two
gpng condenser can be mounted in 3 plastic lunch box under the coil and TAiatQrproo'fod
accordingly. The tuning condsn. ser. is adjusted -bo the frequency required, and
requires peaking whGii an adjacen-fc frequency is selected. This unit is currently-in
use Ty VKTKC who has a wrld. ng model avsiilEtblc for inspoc-fcion if required^
ac eloment Iacd.
Gain -7. 5 db'
Back to front - 24 db
16"
Dir.
De* i ^
JSlcnsu'i; Leng'bha - l4/:. »5 uc/s i
deflector 4.0"' ^" dia. AluminiT.ua or copper tube
Driven Eleraent 38" ^}1 dia, " "•
Director 36" }Jt
~<T' dia,
Boon 25" x -g1' -bubing
Centre
Driven element details T" tubing
^\-
3. 8"
16 swg copper wi.re
PO. oliia coax.