QRM
Recognised text
Text below was produced by optical character recognition and may contain errors. Check it against the original.
Amateur
NOVEMBER I985
Radio
News
Issued by the Tasmanian Division of
wmtsnryocmnet el
the Wireless Institute of Australic
This montns edi
¥5EABS loter 3
AMATEUR RADIO IS OUR HERITAGE
o Words which might well be termed the Magna Carta of the Amateur
I'ransmitter were once spoken in the House of Commons, words which set a pre-
cedent for which Amateurs throughout the Empire should be eternally grateful.
They were spoken in the year 1904 by the late Lord Derby, who as Post-
master-General during his second reading speech, brought about the first Wireless
Telegraphy Bill. His words are worth recording for posterity because without his
positive and futuristic outlook, Amateur Radio might never have been.
He spoke these words:
“The class with whom I have the greatest sympathy,” he said, “are those
who wish to go in for experiments in the science of wireless, and I have been able
to frame a clause which will give absolute freedom in that direction, merely
requiring registration on the part of those who wish to engage in experiments. In
a matter of this description the House will doubtless desire that the Act should
be administered as liberally as possible, and I shall certainly do my best in that
direction. For what it is worth, I will give an undertaking that no request for a
license for experiments be refused unless the refusal has been approved by me
personally.”
This delightfully simple state of affairs did not, of course, prevail, which in
these modern times is quite understandable. But it was this legislation which gave
to the then technically minded people the opportunity to conduct the early experi-
ments from which Amateur Radio was born; and from then on it was the Amateurs
who lead the way in proving that world-wide communication was not only possible
but offered to the commercial world an unbelievable medium for communication.
For those generations whick —cllowed, “wireless’” was an accepted part of
living in the same way that the generation born today will accept television and
other marvels of ‘the current scientific age. And yet if we look backwards and
realise the advancement in only fifty years of wireless and its allied fields, we can
most certainly say that we have only touched on the possibilities of the future.
Lord Derby envisaged the possibilities when he liberalised the first Wireless Tele-
graphy Bill so that technically interested people could experiment unhindered by
regulations. Regulations were, of course, ultimately necessary, and as far as
Amateurs are concerned experimenting is confined to the bands above 30 Mec.
e e
Nevertheless, Amateurs have proved their worth in the bands below 30 Mec. in a
manner not thought about in 1904, and with more liberalised thinking on the part
of those who administer the current Wireless Telegraphy Act, the Amateurs can
go on being of service to Australia in many fields other than experimenting as it
was known in the era at the turn of the century.
We have a heritage which, because of our relatively limited number, becomes
clouded by the overwhelming contributions to our science by instrumentalities with
unlimited financial resources. Qur heritage is something for which we can be
justly proud; a heritage worth fighting for. ILet us all remember that we have it
in our own hands to contribute something in the overall picture, and we should
never let anyone forget it.
FEDERAL EXECUTIVE.
. OCTOBER 1960
¢
SO YOU WANT 10 CONTACT THE EOIROR
READ THIS L LREAD GHES . READ 1R . & READ THIS.
Hey, what's going on ? We ll , yo ur us ua l Ed it or th ou gh t un le ss
he specially drew yo ur ot te nt io n to fh is pa ra gr ap h, yo u wo ul dn 't
bother to read it - se e th e Ed it or ia l, Th e fu al 1a = e Fi i 0t
- went=be—availobl e fo r th e ne xt -c ou pl e— of mo nt hs —= he ls do in g o ~
marathon swim round waterl og ge d Br it ai n. SO - pl ea se se nd al l th at
copy to Peter, VK ZZ PK , QT HR on d te l. na , 43 67 71 (0 02 ). He al so
joins in on 2m. most ofterncens, let Him fove your news, briicies,
comments and letters, and double the size af ORM before your
rugged-up and wellie-booted Editor returns.
e
WOULD ALL ASPIRING CONTRIBUTORS TO QRM PLEASE NOTE THAT THE
CLOSIN G DAT E FOR CO PY FOR THE DEC EMB ER ISSUE IS F R I
29D A
THN Y
OWE ,
MBE R
ee ete e et A e ettte e et
e
Co pi es of thi s ne ws le tter will be di st ri bu te d to WI A me mb er s
at Branch meetin gs and to ot he r in te re st ed su bs cr ib er s by pes t dat
purely nomina l cos t. An yo ne who wi sh es to tak e up thi s otf er,
please contact the "difor.
SQUTHERN
go g
BRANCH
. eG e et oS
ACTIVITY KOTES
. S e gt ets 850 eStg eS S eS .
NOVICZ e AWD CW
s s ee
TUITION
S o ootGt io e e T
o€ e€
Cdi classes are progressing. Rai VKTVV is working on 2 training tape which
should be available in the near future.
Novice theory classes. Commencing date will be FEBRUARY actuzl date willl
be advised latere.
VALVES REQJUIRED
o o gg35 o o e2 e a7 e B S
The SBAG needs 3 only 6JB6 valves for installatiomin the centres Drake TR4
station rig - Please contact Rai VKT7VV with good newSeececeee
S
CONVERSION NOTES
- shle come 498 MR IS8 and - -
for conversion to 6M
amateur bar
CRECTS
The SBAG is collatin~ an order for crystals for both 6 & 2 metre conversione
Amateurs wishing to take advantage of ordering crystals in a bulk order are
asked to advise Hike VK7ZML , Russ VK7ZRP or leave a note at Newtown Rd.
Note if the crysials you require have special properties please write these
dO‘fnv
e
The Activity Group
meets every Thursday
- POWER DUPLEX SELCALL
El
E
BASE
STATION BASE
STATION 1
VEHICLE VEHICLE YOUR VERICLE
1 S VEHICLE 2
WAREHOUSE BASE
STATION 2
| VEHICLE VEHICLE VEHICLE
; 2 4 VEH(CLE :
BUSINESS PRIVATE
~ X470 X470
wherever you drive, work, live...
TX470... THE ULTIMATE IN 1 WO-WAY RADIO
Elecirophone TX47C UHF 2 way radio “he TX470 incorporates the exclusive
brings you vour own high quaility, clectrophone Interference Shield ..
GA0 )[1
preiessiona communication system jiving you crystal clear recephon,
The TX470 has been especially Reception that is free of
designedfor Australia’s harsh nterferewce from motor ignition,
ervironment, by Japan's leading eectrical apparatus, or nearby
~CEOTTIN ooy ransmissions
DL
RIA RivbEy BELECT
IR Dy L ED
“lectropk 1n
o
0
l67-4, Aravie 3¢
Hobar+, 7000
i
_.aY eLECTRONICS
477 NELSON ROAD,
MT. NELSON 7007 .
Telephone (002) 23 6751
SPECIFICATION
FREQUENCY COVERAGE:
150KHz - 29.999MHz
118MHz - 173.999MHz"*
FREQUENCY RESOLUTION:
100Hz (Digital Readout)
FREQUENCY STABILITY:
<+ 300Hz in 30 mins after 1 min on
< 50Hz in 30 mins after warm up
MODES OF RECEPTION:
AM, CW, FM NB, SSB (LSB/USB)
A3E, A1A, G3E, J3E
FRG8800 (J3EIA1 E
@ -6dB, 8.0KHz @ -50dB
2.7KHz
General Coverage Keyboard
FM(G3E)nai
A 12 button keyboard is fitted as standard 12.5KHz 30KHZ@-40dB
@-6dB,
Continuous coverage from 150KHz to 30MHz.
Two speed spin tuned VFO plus keyboard plus allowing quick accurate changes of frequency LsEHsEE(mndnrdhunw).
computer interface control. and band (MHz and KHz programmed 6.0KHz z
@ -50d
@ -6dB, 15KH B
individually). The keyboard also has nine
2.7KHz @ -6dB, 8KHz @ -50dB
Alt mode control buttons to allow rapid changes from
The FRG8800 demodulates SSB (USB & LSB) memory to VFO, memory to memory and VFO to SENSITWIVITY:/A1A) @ 10d8%~+ NN
~CW, AM(Wide and Narrow) and FM narrow as ‘memory-Memorychannels can also-berecalled— —§8B/C (JSE
standard. This, complemented by an all mode at the turn of -a knob, ideat for storing <0-4uV into 50 ohm, 1.50-30MH
squelch, produces the most practical receiver calling/working channels or broadcast <3.0uV into 500 ohms 0.15-1. 6MHz
available. The FM narrow is useful for 10M, CB reception. <1.0uV into 50 ohms, 118-174MHz*
and for VHF with the optional VHF convertor The keyboard is complemented by an opto-
coupled, two speed, VFO drive: fast for rapid FM (G3E) @20 §+ B
dN/N:
Memory tuning of a band or slow for accuratety tuning in <1.0uV into 50 ohms, 1.60-30MHz
.The FRG8800 comes fully equipped with twelve a signal. In addition a fine tune control <2int .o500u V
ohm s, 118-174MHz*
memories programmed and scanned at the compensates for drift in the received signal.
touch of a single button. Any of the memory The dial can be electronically locked AM (A3E) @ 10dB S + N/N:
channels will accept a frequency within the preventing accidental change in frequency. <4.0uV into 50 ohms 1.60-30MHz
whole range of the receiverincluding the VHF <3.0uV-into 500 ohms, 0.15-1.6MHz
range (with the optional VHF unit). The mode is <10uV into 50 ohms 118-174MHz*
also stored in the memory eliminating the ClockAlmer
need for inconvenient manual mode change, Dual accurate 12 hour clocks, with AM/PM SQUELCH SENSITIVITY:
when hopping from one memory to the next. indicators are ideal for log keeping (GMT/ $SB/CW (J3E/A1A):
Local). The clock uses the main digital display <2uV, 1.60-30.0MHz
Selectivity & Sensitivity and features full back-up facilities in the event <4uV, 118-174MHz"*
Four filters are fitted as standard (SSB/CW, of a mains failure or disconnection. The timer
AM, AM-NAR and FM-NAR) with bandwidths can activate the receiver or tape recorder via FM (G3E):
chosen for optimum performance, these the relay contacts provided. A snooze facility <0.5uV, 1.6-30.0MHz
combined with switchabie AGC and variable allows up to 59 minutes of listening. <1.0uv, 118-174MHz*
tone control provides maximum enjoyment
despite today's crowded bands. AM (A3E):
High input sensitivit.es are obtained by the VHF Converter (optional) <2uV, 1.60-30.0MHz
st in RF stages, making the most of The FRV8B800 extends coverage to include <4uV, 118-174dMHz"
~efficient aerials and difficult locations, and a 118-174MHz all within the main frame, thereby
continuously variable RF attenuator contro! allowing monitoring of; PMR, marine and air
AUDIO OUTPUT:
overcomes probliems encountered with very bands, as well as 2M. 1.4W in 8 ohms internal @ 10% T.H.D.
powerful stations The FRGB8800 is operated as before via the 4-16 ohms external speaker/phones
keyboard or VFO, and the memory still holds Constant level line output (recorder)
LCD any frequency and mode. The actual VHF POWER REQUIREMENTS:
Tne back-lit green LCD display incorporates frequency is displayed on the main LCD to a
easy to read ‘any angle’ 10mm digits. resolution of 100Hz
100/120 220/24V @ 50/60Hz
A twelve functicn display indicates the 35VA Rx, 5VA standby
transceiver's status at a glance. It inciudes 12VDC (nominal)*
memcry channei number, mode. and Woridwide 1A Rx. 0.020A standby
frequency to a resolution of 100Hz Also At 6.1Kg (excluding conrvertor) the FRG8800 is DIMENSIONS 5Mnc ections):
included is a two dimensional LCO, g'apmcat ideal for taking on any trip. The power supply is
SIMPO and 'S’ meter. which is conventionaiiy easily adjustabie from 240-220 VAC to 110-120V,
335/350 W, 120/130 H, 235/270 D, mm
calibrated at 1-5 and 0-3, ~20dB, +40adB. -50d6 50/60Hz mains and 12VDC operation is available
Weight 6.1/6.3Kg (w/o, c/w VHF unit)
respectiveiy. as an option * OPTIONAL UNIT
WAMTED
. Bhe BT o TS5120V or T8I 00.
Flegee cont get the eddress above.