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Reli&tered. for Poat.mu
ANIA
as a. Publlcat.lon.
C&tetol'Y B.
EUR
10 9B !
Bulletin issued by the North, North West and
Southern Branches of tlM Wtnlal ImUtute
of Auatralia, Tasmanian Division.
P.O. BOX 2'75
LAUNCF.STON
AUGUST 1979 price 40t TAB. - 7250
VOL. 9 N0.5
MEETINGS
August 1 - 8.00PM
Southern Branch - SES Rooms Melville St
August 10- 7,45PM
Northern Branch - Clubrooms 34 Bourke St
August 14- 7.30PM
North West Branch-Penguin High School
I Portable Wireless Stations.
Portable Wireless Transmittinq
Receiving Station.
gp eel?tea&ton--TRANSMITTING RANGE., S-Lg-Mii.ES
Recei-.ing Range up to 800 miles.
TRANSMITTING,-Wireless Coil high tension Condenser, siik
Terminals mounted on ebonitc, Spark (i.,p rno11nkd
chonitt·, hc.lix with two Clips, Scn,lini:; K,y with
Protl:ctor.
R&:CIUVING.-Double Slide Tunini: lntluctance, Cry,t.tl
Blocking Condenser, aml-1,000 Ohns Wireless Head G,·.,r.
The Apparatus is fuished thraughout in trst-class style, al
woodwork polished Mahogany. Brasswork burnished
lacquered.
Page 2
EDITORIAL
QRM has a new editor... I recently obtained a limited call and
began work on morse,but now I have this job my spare time will
be limited, so the full call will have to wait.
I believe in the theory that the strength of any organization
depends upon unity of its members,so I will try to be an active
supporter of the WIA albeit that it may require changes.
As far as content of QRM goes,I personally do'nt subscribe to
the opinion that amateurs no longer build 'their own equipment,
so I will try to include constructional articles each month.If
you could provide anything please forward them to Bob Grant the
technical editor, or to myself.Articles could be for novice,
intermediate or advanced and preferably detailed,including PC
layout etc.
I would also like to publish correspondence from any person,
whether members of the WI or not.Letters must include either
the writers name or callsign, to include in publication and a
phone number so I can verify the authenticity.
Thank you for reading this editorial and I hope this magazine
can provide a worthwhile service to its readers.
73 de VK7ZKT
Ken Kirkman
(Incorporated in Victoria)
18-20 PATERSON STREET, LAUNCESTON 7250
The WIA wishes to thank Federation Insurance Limited for their
support and reminds all members of the WIA, that should they wish
to insure with this very reputable company,special rates would
be available upon indication of membership.
CONTENTS
Page 2 Editorial
Page 3 T.A.R.C. 79
Page 4 G5RV Multiband HF Antenna
Page 5 Around the Bands
Page 7 North West Branch Notes/Letter to the Editor
Page 8 Northern Branch Notes/QSL Bureau
Page 9 Introduction to 6 metres
Page 10 Intro 6 metres(cont) /Topical Topics
Page 11 Hamads/Scene and Heard
Page 12 Southern Branch Notes/Hamads
Page 13 Divisional Notes
Page 14 Home Colour Film Processing
Page 15 Northern Branch Equipment Store List
Page 3
TAR 79
This year TARC 79 is to be hosted by the Northern Branch and an
organizing committee has been formed to co-ordinate activities.
The venue for the convention will be at the Alanvale College in
Newnham,Launceston,This is a modern building with facilities not
unlike those at Hobart TCAE the venue fr TRC 78,The amount of
space available poses no restrictions as to displays or activities
so we are only limited to the efforts of those able to help.
At this stage it is envisaged to open the convention at 1pm
on the 17th and to provide trade displays and working amateur
stations for view by amateurs and public visitors during the after-
noon.It is planned to have workshops on ATV,microprocessors etc.
The sunday will be given over to mainly a get-together for all
the families,with fox hunts,activities for the wives and children
and an auction of surplus donated equipment,
The dinner for the saturday night has yet to be finalised,but
an interim booking has been made for a room with bar and dancing
facilities at the Matador Restaurant.Costs for catering and in
restaurants have risen substantially this year but it is hoped to
keep the overall registration fee below ten dollars per adult.
If you could help with displays,workshops or donations of surplus
gear or even suggestions for activities,then please contact the
Northern Branch.Suggestions could also include functions for the
often neglected XYL.Anyway remember to keep the weekend of 17th-
18th of november free and hopefully firm details and registration
forms will be available by next month.
Footnote Anyone requiring help with accomodation please let
-" he Branch know as soon as possible.
- .
GELSTON COMMUNICATIONS
TWO WAY RADIO SALES & SERVICE 40 LAVENDER GROVE
YOUR LOCAL VICOM AGENT PO B6x 1311
Phone4 43882
LAUNCESTON 7250
TAS
i 4
IC22S 2metre FM now only $299
Pre-owned Equipment
1C202 2m SSB Portable as new $195
Yaesu FTIOIZ near new $775
Yaesu FRlOl Receiver This comes complete with 3 crystal filters,
4MHz coverage on 6 and 2 metres converters plus FM. POA
Telytype tape reperforator and reader $30
6 metre 8 element 51--53MHz Beam complete with I5Ow Toroidal
Balun.12dB Gain $140 .50
Heathkit Distributor In stock "Cantenna" 1GHz $246
Bi-directional Wattmete $24.50
Co-ox switch 4 position
Page 4
G5RV MULTIBAND HF ANTENNA
Notes on use of G5RV
(a) The G5RV does not have to be used with its 102 ft length
perfectly horizontal.It can be used in a sloping configuration
with little or no loss of efficiency provided the angle is not
too acute.
(b) The length of coax used does seem to be important,Most ope-
rators who successfully use the G5R/ have been able to confine
the length of coax to less than 30ft
(c) Often amateurs are heard to say that theG5RV is a comprom-
ise and so must perform poorly in some respects but it is no
more a compromise than any other multiband antenna including
triband yogis.
This is probably the greatest bugbear in the use of the G5RV
and the reason why many operators give it away as a bad job.
They are faced initially with a very high SWR and assume that
the only answer is the use of a tuning unit,The antenna can be
tuned by shortening (but not cutting) until an acceptable SWR
is acheived,Do this in steps of about 6ins at a time at both
ends and checking the SWR each time.Do this on say the 2O metre
band and when satisfactory check the other bands.These will
usually be found to be satisfactory but some compromise may be
necessary. The following results were obtained as an example.
80metres SwR I.3
40metres SWR I.6
20metres SWR I.O - I.I
'
I5metres SWR I.6
IOmetres SWR 4.0
Original overall
length 102 ft
'
25degrees
300ohm ribbon
70 ohm coax
t to TX
%kArticle reprinted in part from AR apri1 74
Page 5
By Joe V7JG
AROUND THE BANDS
On the HF bands several DXpeditions have been active over the
last month,The Isle of Man celebrated 1OOO years of self government
with a special GT call and more stations from there were worked in
one day,by some VK7's during the first week of July,than they would
have worked in one year normally.
As these notes are being written,expeditions are active from ZK2,
A35, H7, KH8 and KKH9.Stations signing ZAlA and ZA1BY have also been
worked by VKK's and ZL's,however no word of any VK7 making a QSO has
filtered thru.ZA is the prefix for Albania and further news is being
awaited with interest.
The ZLLADI trip to Manahiki,although postponed,is now mentioned
as late July,possibly.Even if Chuck does not make it most DXers feel
fairly certain thet one way or another,this location will be activated
in the next couple of months.
The last month on the air has been quite profitable,although much
listening on 28MHz was required to get results,
7MHz was good to central and south America late afternoon and
ear1 enings local time,with signals up to S7 from ZP5PX, CP6CTS and
LU's on both CW and SSB.Other areas heard were W, JA, JD, UA,TI,C6&VP2
14MHz produced such rare ones as OH,,SV8,D24,ZB2,XF4, (the last
mentioned could have another burst of activity soon)and 5Nb together
with dozens of Europeans,Asians and Central Americans.
21MHz also excelled with XFA,7P8,5N,HB,MI,LX,SU, SV9,VP2K, 1Sb,
9J2,A2,FR7,ZS,GT,HR,4S7 and others from all continents.
28MHz although slow,came up with FK8,FO8,CT2,ZK2,A35,SU,KHZ and XF4
If conditions follow the normal yearly pattern August should be even
better.
6 metre activity We have had several good mid-winter openings to
VK2,3,4,5 lately.On the 8th July there was very short skip conditions
to VK3 when signals were S9 to VK30T.
ZL TV has been viewable in colour but there has been no amateur
activity noted. During a very strong 6m opening to V,2 metre signals
2 metres
were heard but no contact made, That is all till next month but do'nt
forget the next Equinox when once again record breaking contacts
should be possible to W land. 73 Joe VK7JG
J.D. ELECTR NICS
64 Wentworth Street,
NEWSTEAD
Suppliers of Yaesu Amateur equipment, Test Gear and all
Novices check
Accessories. Antennae and Fittings,
us now for a really good deal.
-
Page
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MICS
SPECIFICATIONS
"'Frequency Range: 144.0 to 148.0 MHz e Mode: SSB (USB, LSB), CW,
AM, FM • Antenna Impedance: 50 ohms e Frequency Stability: Within
±3 kHz during one hour after one minute of warm-up, and within 150 Hz
during any 30 minute period thereafter e Power Consumption: Transmit:
98 Watts (120/220V AC), 4.0A (13.8V DC), Receive (no signal): 48 Watts
(120/2201/ AC), 1.2A (13.8V DC) • FF Output Power: SSB, FM, CW;
10 Watts, AM; 3 Watts, FM (Low); Approx. 1 Watt e Modulation: SSB;
Balanced modulation, FM; Variable reactance frequency shift; AM; Low
power modulation e Maximum Frequency Deviation(FM): ±5 kHze Carri-
er Suppression: Better than 40 dB • Sideband Suppression: Better than
40 dB • Spurious Radiation: Better than -60 dB e Microphone: Low
impedance microphone (500 ohms) • AF Response: 400 to 2,600 Hz
~ Repeater Frequency Shift: 600 kHz • Sensitivity: SSB and CW; 0.25 µV
for 10 dB (S+N)/N, AM; 1.0 V for 10 dB (S+N)/N, FM; 0.4 uV for 20 dB
noise quieting, 1.0 µV for 30 dB (S+N)/N • Selectivity: SSB. CW and AM;
2.4 kHz/-6 dB, 4.8 kHz/-60 dB, FM: 12 kHz/-6 dB, 24 kHz/--60 dB
"Image Ratio: Better than 70 dB e IF Rejection: Better than 70 dB
e Squelch Sensitivity: 0.25 µV • AF Output Power: 2 Watts/8 ohms load
with less than 10% distortion • AM Output Impedance: 8 ohms e Dime
sions: 278 (10-7/B)W x 124 (4-7/8)H 370 (12-5/S)D mm (inch-...../
The TS-700SP is the all-mode solid state transceiver the, ,:;,rovides you with • Weight: 11 kg (24.4 lbs)
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OR ROGER --
Page 7
NORTHWEST BRANCH NOTES By Jim VK7NOW
The monthly meeting of the North West Branch was held at our new
headquarters at the Penguin High School,with another good attendance
of 45 members.
Minutes of previous meeting were read by the Sec and accepted.
nation of $1,00 per member was accepted for WARC.
Chairman spoke at length regarding "Knocking and Whiteanting" and
passed around a pamphlet illustrating the subject.(see article below)
The Chairman also outlined details as to why the Branch's funds were
temporarily"Frozen"by Council and also explained how this unfortunate
incident was resolved.Everybody concerned "kissed and made up"and one
may now expect to hear members in the West speaking with members in the
East via Repeater 3,Hi!
New Members 3 new members were nominated and accepted-
Terry usin(Burnie) Florian Biner(Penguin) Norm Verral(Burnie)
/7AXTony gave up to date info on Repeater 3 and the Beacon,Tony
also mentioned that l9 members attended the first meeting of the ATV
group,which proved very successful,The ATV chain is also operating.
Steve gave the meeting on the progress of the Microprocessor
group and suggested combining this with the ATV group.
Activities Vince VK7NVH organized 4 groups who gave a very inter
ting practical demonstration on the uses of the CRO and associated
quipment.The groups were lead by Graham VK7ZAQ, Paul VK7ZPB, Tony VK7AX
and Winston VK7EM.It was decided to send a letter of condolence to the
Silent_Key
widow of Bert VK7BI.Members will remember the excellent job that Bert
did the for the Branch when we hosted TARC a couple of years ago.The
Tas Division of the WIA will be poorer with the passing of Bert.
As usual an excellent supper was served by members from the
Burnie area.Thought for the month "Remorse is the period between one
hangover and another"
Wireless Institute of Australia
forth Western Branch
The WIA is an edifice built by many eminent people in the wireless
world over the longest period of any radio institution in the World.
This monument to these pioneers is built on the firmest foundation
as stated by the Objects of its Articles of Association,
The immediate objectives of the WIA are-To encourage and assist
] persons interested in any or all aspects of amateur radio and allied
Lechniques with special reference to licensed amateur transmitters and
to promote the extension of interest and active participation and ,
co-ordination in such pursuits as the above,
The building on this foundation may be made to crumble,decay and
collapse by some of the thinking and attitudes that we have which can
react against these objects or delay them,
These thoughts and attitudes in us all are the Borers and White-
ants that retard and stagnate any group of people or organization,
LETTERS TO THE EDITOR
The Editor QRM
Firstly congratulations on a fine magazine,its format is
light,interesting and informative and I find it very enjoyable
reading.I would like to submit an article in the near future
which I hope will be of interest to the readers,So best wishes
to you all involved on the magazine for a job well done.
Secondly please note that I am no longer using my old call
sign of VK7TL.I have been moving around too much this year to
contemplate setting up a station so have let my license lapse
until I can get a permanent(and suitable)place.I will still be
a member of WIA and would still like to receive QRM.,
73 Tom Macha Hobart
NORTHERN BRANCH NOTES Ken VK7ZKT Page 8
The monthly meeting of the Northern Branch was held at Bourke St
on 13th July,The meeting was chaired by Ed VK7HE with 25 members of the
branch attending.
Minutes of the previous meeting were accepted as correct and the
meeting then dealt with two items of business arising from the previous
branch meeting.
Purchase of Equipment The meeting voted on and accepted a motion
to purchase an HFtransceiver (TS120V) and in a second motion approved
the purchase of a 2 metre FM transceiver (IC22S),The total cost of these
items was $668 tax exempt and it was further agreed that this be funded
from the clubroom account.
Treasurers Report was presented by Brian VK7ZBY and accepted,
Call Books The equipment store manager,David VK7YY reported that
call books for 1979 would soon be available at a cost of $2,95 and
owing to an initial limited printing,orders should be placed with the
1
equipment store ASAP to ensure delivery.
Outward QSL Col VK7KW reported that no mailage stickers have
arrived as yet and could members using the Bureau leave identification
on cards for contact if necessary.
Sunday'Broadcast Brian VK7ZBY asked the meeting if there would be
support for a re-broadcast on 6metres FM (52.525)
Clubroom Renovations Bill VK7TE reported that requirements for
painting and wiring at the clubrooms were being processed thru the City
Council.A Working Bee was then arranged to provide bench and shelf space
in the radio room atBourke St,Sat 2lst and Sun 22nd.
Ladies Committee Reported that the progressive dinner held recently
was a great success and thanks all who attended,Next function is to be a
Wine and Cheese evening on 25th August(see below)
Educational Brian VK7ZBY propsed that the Branch purchase lSARRL
handbooks ab $3,O ea,to be held by the Branch for use at future AOCP
classes.It was also reported that 18 AM/FM portable receivers purchased
recently,would soon be available for purchase by members,The sets are
being modified for 2 metres and should resale for about 7 to 8 dollars,
It is envisaged that these sets could be used for Fox Hunts in the
future and especially at TARC 79,
Meeting closed at 9,45PM and supper was served by Yours Truly
wearing my other hat as refreshments officer.
Next Meeting Executive Friday Aug 3rd
General Friday Aug 1Oth
WINE and CHEESE EVENING
A Wine and Cheese evening is to be held on 25th August at
the Riverside council chambers hall.This is a modern hall
with all facilities and should prove to be an excellent
venue.Caberet style entertainment is to follow with supper
and drinks provided.Cost of tickets is 4 dollars and are
available from the Branch Sec Lucy VK7NSB,Ed VK7HE or any
of the members of the Ladies Committee,The number of
tickets is limited so be early,
QSL
If you intend to forward cards through the Bureau,please
remember when having them printed, that they must be no
larger than 140 X 87 mm as any larger than this cannot be
handled,
A short guide re QSL and Bureau requirements is available
from the Bureau and QSL officers on application
Chas VK7CH QSL
Page 9
by Joe
INTRODUCTION TO 6 metres V7JG
What is the 6 metre Band? It is the lowest frequency VHF band
available for amateur use and here in VK it covers 52-54MHz,This is
unfortunately only the upper half of the international allocation of
the 6 metre band of 50-.54MHz.
Being a \/HF band,most of the time it exhibits normal /HF propog-
ation characteristics,but under various influences eg. Sporadic-E,F2,
TEP then world wide communication is possible.I shall explain the
meaning of these propogation modes, further on in the article,
Conditions vary considerably with the time of year and position
of the sunspot cycle.With a good opening it is possible to work as far
as Japan with 5and9 signals using only 3W PEP from a portable.
Equipment can be either built or purchased and if your hobby is
construction then almost every amateur handbook contains details on 6m
transverters and antenna, (The RSGB handbooks are an exception as there
is no 6m allocation in England.)
In every active 6m area throughout the world,Beacons have been
built for propogation prediction purposes,also TV and FM transmissions
that are close in frequency to 6m,can be used to detect openings.
,,,---..,_
The more common and possibly the most spectacular form of propog-
ation found on 6m,is Sporadic-E reflection,This carries the bulk of 6m
traffic within VK and peaks usually from November to January(summer DX
season) and to a lesser extent June to July(winter DX season) It also
occurs for brief times during other months but the only way to detect
the openings is by constant monitoring of the band.Sporadic-E signals
are usually very strong and often the DX signal is stronger than the
local.The best skip distance is about 1600 Km but this does vary.
These signals are reflected from ionized clouds in the 'E' layer
at a height of 60 to IO Km above the earth.Openings may last from a
few minutes to several hours and although they can be at any time of
the day,obsevations have shown that the majority are around noon or
early evening.During the last equinox,the first openings to W land for
the day,usually occured around 8.30am local time,then a second opening
two hours later.It was also noted that the openings appeared to open
firstly to southern stations eg ZL,then slowly move up the east coast
to V3,VK2 and finally VK4,Other days the openings were contained to
,,__ VK4 stations only.propogation modes is very difficult,the above example
Determining
possibly being F2,This provides long haul,multiple hop up to distances
of 20,000 Km.
Forward scatter signals are scattered by the 'E'layer
Scatter up to 2200 m or by the troposphere at about 1O Km above
giving paths
earth,giving paths up to 800 Km.
Backscatter occurs when signals are reflected back toward their
origin by the 'E' layer. eg VK3 beaming north and being heard in VK7.
Backscatter is usually an indication of a good opening,
TEP (Trans-Equatorial Propagation) To fully explain this mode
would take several pages,but it is explained in an article by Roger
Harrison which was reproduced in several amateur magazines.Basically
it is that communications is possible between amateurs roughly equally
spaced either side of the magnetic equator.eg Tokyo to Rockhampton.
I have noticed in V7 tkt this mode is usually associated with
some form of Sporadic-E noise to VK4 or 8 area,then TEP to JA,
AN INTRODUCTION TO SIX METRES cont Page 10
Auroral Reflection With increase of sunspot cycle 21,Aurora
activity will increase as well.To use the Aurora,point your beams south,
run as much power as you have (within limits)and use SSB,Signals have
a characteristic phase shift making intelligibillity almost impossible
at times.CW sounds rather like a "shoosh" and is very wide.Southern
States enjoy this mode mostly with contacts between V7-3-5 most common,
Meteor Reflection This mode depends upon ionized areas,formed as
a result of meteors striking the upper layers and reflects signals for
periods of a fraction of a second to half a minute or more,To use this
mode usually involves operating early in-the morning at 6AM ,running
full power with as much help from the antenna system as possible.It is
very time consuming but can provide activity when the band is
normally closed,
For those who have never operated on 6metres,then why not give it
a try, It con be very rewarding as well as frustrating,commonly known
as the "gentlemans"band,
Obviously the first requirement is a rig of some sort,perhaps a
converted earphone even using world wide simplex frequency of 52.525MHz
FM, 52.656MHz is a secondary frequency,
In VK 52.050MHz has become the national calling frequency,so when
you are in the shack,leave your rig monitoring this.
A list of the Beacon frequencies can be found in the VHF column of
AR and these can also be monitored to see if the band is open to a
particular area.28.885MHz is used as a HF Liason frequency so if you
listen there you will learn a lot about 6m conditions,
Sunspot Cycle 2l is with us and if the last equinox opening is any
indication,then we can look forward to 6 metre openings to most parts
of the world within the next few years.The only dis-advantage of
increasing sunspot activity is a fall in Sporadic-E.
See You On 6
73 Joe VK7JG
TOPICALTOPICS by Jim VK7Now
Do you know what a JAR is? Wait for it - I can almost sense several
members muttering something about"it is used for putting the molecular
contents of 807s in! True,but the word "JAR"was the unit of capacitance
long before the "Farad"was used,
It was named after the "Leydon Jar"which was the fore runner of the
capacitor as we know it today.I was recently given a variable condenser
which is calibrated in"Jars".It was used in conjunction with a very
early Spark Transmitter and was immersed in oil,to increase it's capacity
and prevent arcing,
. In the construction of the early sealed capacitor , a sheet of wax
impregnated paper,sandwiched between tin foil and pressed together when
hot,so that a bank of these placed in•a hermetically sealed box would
form the basis for the modern capacitor
73 till next time
Jim VK7NOW
OS Page ll
HF Trap vertical antenna including 80 metres
WANTED
VK7ZLD Home QTH 444690
Kenwood line.TS-520S,AT200(ATU) both as new
Station for Sale in original boxes and with handbooks,
Emotator antenna rotator unused,with extra
mast clamp.Still in original box.
$8 the lot or any reasonable offer con-
sidered,Prefer not to split,
V7NED QTHR Dodges Ferry
J D Smith
FDK Multi-7,Ch.40 + 50 + R2 + RS,Hornebrew Pwr
FOR SALE supply to suit.4 el 2m Gamma match Yagi,
(incl 7m Coax).Mobile G/mount whip (incl 2m
Cea),Mobile mount,connecting cables etc.(All
connectors with plugs etc)Manual with circuit
diagram.Suit new Z call-sell complete only $200.
Ex VK7TL Phone Torn Hobart
work 726976 Home 232989
by Earwig
Your report is coming from the Northern Hemisphere this month,
Ore thing that is noticeable over here is that much of the Internation
--al broadcasting in Europe is on the Medium waves,The average power of
the transmitters is in the hundreds of kilowatts rather than tens of
kilowatts,so it is possible to hear many of the Europeans on a pocket
- radio,Here in London there are seven different radio programs, four of
them BBC, two independent commercial and one local radio station,Also
there are FM outputs of these programs, The FM band is between 89-lOOMhz
and broadcasts in stereo.Above lOOMhz there are two way radio links
and repeaters for public utilities,
The amateur service here appears to be much the same as that in
VK.Although the restrictions appear to be more enforced here than in
Australia,The frequencies allocated are mostly the same except the 4O
metre band is only 7,0-7.lMhz and there is no 6 metre band.Instead an
allocation in the 4 metre band is provided,which is used in most of
western Europe,Also 2 metres here is. a shared band with police and
military above 166Mhz,The repeater offset is 3OOKHz with 9Osec timeouts.
Incidentally CB here is taboo and there is no sale of CB rigs in
stores,There does not appear to be much illegal activity as the Post
Office clamps down heavily on illegal transmissions.
The RSGB has quite a close relationship with the Post Office and
appears not to conflict.The current license fee is A$14,CW requirement
is 12WPM and the exams are set by an outside body,the City and Guilds.
I do'nt have to tune short wave to hear BBC world service.It can be
heard on 648#hz practically 24 hours a day
Well thats all this month,next month report from European scene.
SOUTHERN BRANCH NOTES Page 12
These will be brief as the OM and myself were away for most of
the preceeding month in VK3 and VK5,We took VHF gear,however were
very inactive with my only contact being a VK6,mobile in 5 also.
Talking of travelling,Ian VK7ZZ is presently enjoying the
hospitality of VK8 land.
Back in Hobart,Ted VK7EB has been rather ill and is still in
hospital,although improving now.
w.A.G.S. latest fund raising event was the square dance held
recently;apparently this generated such interest,that a few dancers
were seen two days later,learning how to dance-square variety-in
order to be prepared for the next such event.
In order not to disappoint these enthusiasts another dance is
tentatively planned for early spring.
The next fund raising event on the social calender is a Bingo
night to be held at my QTH in New Town,on the 4th August.Also a
Christmas {unction will be held on the first weekend of December.
This will probably be a combined Wine bottling/Barbecue,
So far WAGS have raised close to 600 for the building fund.
The Bingo night has been carefully planned in order NOT to co-incide
with the R,D.Contest on the following weekend.
If all those who took part in the RD contest last year had
entered their logs,Tasmania would have won fairly easily.So this
year it is hoped that amateurs will rectify matters and ensure our
winning.
At the last Executive meeting there was much discussion as
regards affiliation with the SES, the bait being the use of clubrooms.
Any interested members of the Southern Branch{and this should include
all members)should attend the next General meeting where this subject
will be discussed and hopefully voted on,
The next General meeting will also include a talk on operating
procedures,particularly during contests.
FOR SALE
FT221 as new condition $500 ono Ph 287575 Brian Morgan
Hobart
WANTED
One (1) Windmill with head and would also like pump.
(vanes optional)
Preferably able to be dismantled for transportation.
wind Generator also required,
Tower (any height) and a combustion stove.
Ph 491266/309891 Hobart
Andrew Dixon
Page 13
DIVISIONAL_ NOTES
North Queensland Radio Convention We have been asked to publicize
this event,to be held Townsville from Friday l4 to Sunday l6 Sept
1979,A brochure is available from your branch,
Articles of Association An updated copy of these is now available
and wITI be sent to members who joined recently and to whom we were
unable to send a copy.If you require a new copy,send a 25c stamp with
your request to the Secretary.
Tasmanian Award A draft copy of a "Tasmanian Devil Award" will
probably be available next month,Meanwhile Council would like to hea
from anyone who could help with the artwork for the certificate,
Special Council Meeting The following statement was issued on the
broadcast of 8th July by Divisional Council,
A special Council meeting was held at Devonport on Sat 7th July
with some North West Branch executive members present,This was felt
necessary to clarify the position as regards the aquisition of some
equipment by, that Branch. After discussion the matter has been
-clarified to the satisfaction of all present,
We would like to state catagorically,that no personal reflection
was intended by Council or any members of the NW Branch and should this
have occured then an apology is offered.
Council meetings 2PM, 18th August at Reg Emmett's V7KKK QTH at
11l New world Ave.Lton.Remember visitors are welcome.
On-air meeting : 3595 KHz 8PM on 6th August.
R.D. CONTEST
We went close to winning last year.Our next chance is on 11-12th
August.Note that there are a number of rule changes this year and also
that there are some errors in the rules on pages 40-41 of July AR.Note
particularly the and
(a) Novice following,
Limited Licencees operation is a most significant
bonus
'
to us.Since they cannot operate on all available bands the Contest
Manager has excluded them from participation calculation.However their
point scores are most important and of course they can receive
certificates.IF THIS RULE WERE USED LAST YEAR WE WOULD HAVE WON,
(b) Intrastate contacts are allowed on VHF and on 1.8,21 and 28MHz.
during the late evening and on 1,8,7,21 and 28MHz during Sunday afternoon
(c) A station may be worked more than once on 1,8,21 and 28MHz.
(d) CW/RTTY contacts count double.
(e) More Log sheets should be available from Branches.
(f) Logs must be sent by 3rd September.
(g) Council is making efforts to allow VKb contestents to send in
their Log information.So work them for maximum score to VK7.
CALL BOOKS 1979
Branches are now taking orders for call books.Supplies will
be limited so do'nt miss out.Available mid-August for $2.95
Page 14
HOME COLOUR FILM AND PRINT PROCESSING cont,
For temperature control I use an old frypan with a little water in the
bottom,Place the tray with the developer in the water and a thermometer
in the tray,The thermostat will need to be set fairly low and experime-
ntation will give you the right setting to maintain around 37.8C (100F)
When found mark the place on the thermostat control,Leave the tray in
the frypan all the time you are printing.Some people use a temperature
controlled plate warmer but they are not easy to get.
Before printing check:
The papers have been cut to size,The enlarger has been set up and has
been focussed acurately on a sheet of white paper,The developer,fixer
and stabiliser poured into trays and developer at correct temperature.
The fixer and stabiliser can remain at room temp.
As an initial starting guide put in the filter drawer:
1 ultra violet filter,6O yellow and 20 magenta.
Set enlarger aperture to FIl and do 3 test exposures at these times:
1 at 5 seconds 1 at lO seconds 1 at 15 seconds
Using a pair of tweezers develop papers as follows:
Agitate in developer for 2 mins, Agitate in fixer for 1 min, Wash for
l min in water then stabilise for h min,
For the test prints you need'nt worry about the stabiliser.Check test
prints and determine which exposure time is best.Adjust F stops and
timing as you would with B/W for correct exposure.Now look at the
overall colour cast and make filter corrections as previously described ,
Remember if you have to add filters to the drawer then add a second or
two to the exposure time as addition of filters reduces the light.
Similarly removing filters then reduce exposure time.I reckon you will
have a reasonable print by now and only minor mods to the filter pack
will be necessary.Initially you will use up a few papers but it is
surprising how quickly you will become adept at judging the changes
required,Once you have settled on the F stop,the time and the filters
then under no circumstances change anything:maintain consistency.
Once the prints have been stabilised the following is suggested:
Place a clean towel on the table,place the wet prints on the towel and
sponge off excess stabiliser with a wettex or similar and leave to dry
at room temperature,They will appear slightly milky until dry,also
definition will improve as they dry,
A more professional finish can be obtained by guillotining the edges
leaving a border of white. around the sides.Initially the cost will be
the same as commercial printing but with time you can cut costs and
have the satisfaction of doing it yourself,Remember your prints can
be larger and you can do as many as you like,It becomes cheaper if you
save up your films and do a few at the same time.
Some will find it not worth the trouble but others will find it a good
hobby and very interesting,
Another small matter that comes to mind: In the confines of the dark-
room the chemicals can be a little overpowering so a small exhaust fan
could be well worthwhile,
I hope this article has been of some value to those who wish to try
home colour printing,
All the best and 73
Peter Harrison VK2NPM
(This is the final article in this series and our thanks to Peter-- ed)
R.D. CONTEST
COVER SHEET
. . . . . . . . . . . . . . . . . . . . • .
Section
. . . . . . . . . . . . . . . • • • •
Score
. . . . . . . . . . . . . • • •
call Sign
. . . . . . . . . •
Modes
. . . . . . . .. . . . •
Name
. . . . . . . . . . . . . . . •
Address
. . . . . . . . • •
I hereby certify that I have operated in accordance
Declaration: with the rules and spirit of the contest.
. . . . . . . . . . . . . . . • • •
Signed
. . . . . . . . . . . • • •
Date
Call Sign .... VK7.
••••••••••••
CONTEST R D . Section .. Page No
•••••••••••••••••••••••••••
Yr_Mth. [Local] Time MHz. , j R ST / No. OSL
GMT Day Day GMT
Call Sign
sic. Pts.
e»a Wool Remarks
s7R
-,--,----t----------+---+---+-------+-------4--
---··-j-----1- --------+--+--I
- t-- - +- - - -1- - - - - - ---+--,--r-----t-----t---1---------.+---I--I
-Do not forget the Summary Page and Certificate.
Total
Page
15
NORTHERN BRANCH EQUIPMENT STORE
Books rlcbolytics % _e
1000 Questions&Answers for 470uF 25V 0,20
Novices 3,00 100uF 25V 0, 10
· Manual of Questions & 50uF lOV 0, 10
Answers for the Novice 4,30 47uF lOV 0,15
W,I,A. Log books 2,55 47uF 25V 0,06
W,I,A, car stickers 0.20 22uF
lOuF 25V
25V 0,06
0.06
\Semiconductors 4,7uF 25V 0,06
LMlllH 4,50 l,OuF 63V 0,05
L_M3900 1,85 O.47uF25V .06
NE565 RTTY demod 2,40 Tantalum Electrolyti.£2 0,35
NE 556 Dual Timer 1.85 22uF 0,25
i\JE556A " 1, 85 lOuF 0.30
LM372H 3, 80 4,7uF 0,25
LM325H 10,50 luF
LM301 Op amp 1,25 Polyester_££,eacitors 0.06
[c1741 1.00 6.82nF 250V 0.05
41351 5.00 22pF 10oV 0.10
4370 a.so 68pF lOOV
DM7420 Miscellaneous
LM743 1.00 1.25
LM709 High perf op amp Small panel meters 6.50
LM340T 15v @ 1A Regulator 1.90 Crystals 10,75714MHz 6,50
4.40 10.905MHz
LM317T 2-20V Regulator 15,116MHz 6.50
0.25 6,50
BC308 4.50 12.1791MHz
[gee 0,28, ETI 704 PCB #Crosshatch Gen 3.00
2N3563 0.10
0.25 Single coil cans
,BC547 · o. 70 Xformers 240-12.6V@ 150mA 3.00
0.46
I
MPF102 0,30 Ferrite rings 0-60MHz
2N3564 0.25
o. 75 VHF chokes 0.10
2N5245 1.40 Fl6 slugs
2N3866 0.25 Xtal sockets (2 sizes)
o. 35
- BC1O9 1.40
1(2N3656 1.00
1.20
WIA lapel badges
Single sided PCB 13Xl4ins 2.00
[2N3055 Double sided PCB 13Xl3ins 2,50
0.33
[Zener 6.2v & 4.7V 0.20 Pots 22(PCB mounting)
1404 Diodes 432MHz 27el mounting kit 22.00
Ceramic Capacitors Thermistors
0.10 Special.Bulk Packs
16F 2,2pF 3.3pF 4.7p 0.10
. no
lOpF lSpF 22pF Resistors (all values
0.05 10O mixed) 3.00
0.10 Ceramic caps (100 mixed) 6.00
33pF 47F 68pF 82F 10OpF 7.00
150pF 220pF 330pF 390pF 0.10 Electros(lOO mixed)
560pF 680pF 820pF 0.10
0.06 Semiconductors
lOOOpF 0.05 0.55
0.0027uF LM555 GP Timers 5,50
0.10 uA78CB 13.8V Regulators
o.01uF o.02uF o.o5uF 0.03 o.65
0. lSuF BD135 GP NPN
Equipment Store Officer
David Bailey VK7YY
16 Notley St QTHR 261880
PH. 35 115(1 PH, 31 f7o{?
AFTC:1~ Houl\S ONlY ('#KUNSjNNS)
( V k7"1e.&)
KENWOOD
TS 12.0S H.F. l>161TA(.. 2o0 w w« S7o l)AIWA ;toTAfOR ORiS'ooS $ l'l'f
TS 180S 1-1.f. l:114111\l. New T $TA DAIWA VF UHF Sw PwR M€Te $,12a
PS 3o Powel'\ s11PP1.y Ju.. $ 2.10 l)AIWA CN620 Cl'l,OSS N€1:1)1.€ S"'11\ $'t"J
AT 120 /HJft:NN.A TvtJ€R New + $10
SM ,11.o sTATlorv flioN1roR $J40
R 300
ll'n~ U.S. ANO fOftE141V CA ooxs So·5o
$ .2. 7Cf ARR L' /HJTENfJA I-IANO Boo/( ~i'-'fS
AT i_oo $185
AltltL SSl3 foR. RAb10 AMATEv~~ OK. $'-·'fS"
ICOM R$G AMAT€OR RAIO TNt4vs K. $g50
lC 70 I H.F. TRANS CC:IVt;R $13so 1.-EAl\cR. LOM 1115 G.l>.O. $(J"f
lC 2.1 S l,M FM Mo6ltt; $330 f.\U.IC 5;M!TI-/ 40MH2'. blGriAL K1TSfT $qq.<;o
IC Sil (?M AU. Mot.E r,,ew + $TBA COAX. u1v~1 LOW £.oss IOh'lw, OIAM. $(-40/M
tc21 2. M AU. l'tol){: $74
AMTENNE"A AVtT MAOE BEAMS
AM4--2. IS - IOM 6t:A"'1 $64
A83- 10 :>EL. IOM €AM $74
wAtlAANTY /llllt. AFTt:!'1 .SALl'! S.€~VICI: AB~ -10 5°€1.. I 0"'1 P.,l;AM $94,
bol-J€ BY OS. . INfoR.MATION ANb WN'( PAY MoRE f<>« t MPoR.Ti;O TYPE 1"
ation
Postage
Category 'B'-------------~
Paid
Launceston
R? k Emme t t 7250
111 M arid Ava
L.our-,cc:st,:,n Ti:,s 7;f50
Northern Branch W.I.A.
PO Box Launceston Tas· 7250