Sunday, September 25, 2011

Meet the RSGB - Saturday 22nd Oct


An Invitation to:

Meet the RSGB

at
Normandy Centre, Denne Road, Horsham
at
1200 until 1700 hrs on 22nd October 2011

In co-operation with

SCARF

(Southern Counties Amateur Radio Forum)

arranged by Mike Senior, G4EFO
RSGB DRM for Sussex.

Programme:

12.00 - 2.00pm meet have a drink and ploughmans lunch ( food by pre order only ) , visit other clubs represented.
2.00 - 3.00pm President of the RSGB: Talk and Q&A
3.00 - 3.15 comfort break
4.00 - 4.15 Mark Allgar from HQ: Talk and Q&A session
4.15 perhaps any final socialising
Hall to be clear by 5.00pm.

Friday, September 16, 2011

Cloth Cable

The following clever method of creating a retro look was posted to the QRP-L list and is reproduced with the permission of the author, Chris K4FH.
 
I've always liked the look of cloth cable over plastic insulated cable. I bought a pair of head phones that had a retro look and it used a cloth cable.

I've formulated a way I can simulate the look using paracord.

1) Cut a length of paracord

2) Using the butt end of a drill bit, insert the bit into the cord and use a lighter to singe the cord. This keeps it from unraveling. I use the bit to keep the cord from closing up.

3) Run as many strands of #22 stranded inside the cord as you need.

4) Solder those to the connector

5) Use the strain relief in the connector to hold onto the paracord.

After you get one end done allow the cord to relax and then do the other end. This keeps it from being bunched up.
 
 
It is not a perfect replication of look and feel.  You can hold it and tell there is wire inside and room for more wire.  In 550 there is not much room for more than 3 wires.  If you want to make something bigger
try the larger dacron used as antenna rope.

I chose the silver ends with the springs because I wanted a nice look. I also made a cable for my J-38. Since one end uses terminals I used heat shrink to bind the lead wires (with terminals) to the cord and make it look nice.

In the audio cable in the pic I used a single pair of spare wire I pulled out of some CAT-5.

With this method you can make any length you want with any number of wires you need.

73,
Chris k4fh

Military Matters


As some of you may know,  V.M.A.R.S,  Vintage and Military Amateur Radio Society are a group of like minded people who have an interest in preserving and refurbishing military and civil radios.  Many of their members have fully fitted vehicles with all their radio equipment mounted within.  These vehicles can often be seen at Fairs and Shows throughout the country and their owners are only too glad to answer any questions you may have about their kit.

On the 10th September they held an operating day near Gatwick Airport in the grounds of a house called Hunters Moon.  The owner of which is also a member and a licensed operator.  As I had the time I visited the site to see what was going on as my knowledge of Military Radios is limited.  I must add that I only located the site after ringing the organiser.


I was welcomed by the site owner who explained what the attendees were doing and where to park.  A few show vehicles and tea tent were located by the entrance which made the site more inviting.  Further up the field was a line of wire dipole antennas and another radio equipped vehicle.  At the end was a large tent for sleeping and cooking for some of the ‘crew’.  To the right was a wonderful display of military radios past and present all set out on various tables and in two vehicles.  Perhaps sets with names like No9, No18, Larkspur and Clansman amongst many others would have brought back memories for some of you.




A few of the display vehicles on show, all fully kitted out.  Yes, even a 6 pound anti-tank gun.


The wonderful display of radios on the tables, the army tent used for sleeping in, the Landrover overloaded with radio kit and finally an Austin Champ with a full Larkspur set up.  Note the Loop Antenna!



During my time there I asked many questions regarding the use of the radios and discovered that most of them will operate on the amateur bands easily.  Some of the radios are not as easy to operate as ours but will perform very well.  The quality of build is probably better in many respects as they have to endure harsher conditions than ours.  They could be operating in the Artic or a steamy jungle and are expected to perform with the same efficiency.

A few other members arrived and started to set up their antennas and rig layouts.  In the four hours I was there only one other ‘outsider’ looked in at the event, pity, because I felt that a bit more support from outsiders would help them along.

I enjoyed increasing my knowledge and made to feel very welcome by the members.

Give it a try next year.

BrianG
2E0MZB

Sunday, September 11, 2011

CARC Programme 2011


Issue:        
October 2011
Meetings: 
Every Wednesday Evening commencing 8.00 pm

Every Sunday Morning from 10.30 a.m.
Main Meetings:
4th Wednesday in the month starting at 7.45 for 8.00pm (unless otherwise advised.)

MONTH
DATE
TOPIC
BY


September
Wed 28th
FFT’s and the PC in your Shack. An overview of the new wave of mainly low cost computer-based test instruments, including Vector Network Analysers, oscilloscopes and spectrum analysers.






October
Wed 12th







Wed 19th
GB3MH A presentation on our newest and technically most advanced local repeater. This covers the site acquisition history, hardware and installation, with an explanation in simple terms of the network architecture and the way to access/operate through EchoLink/IRLP.


Excalibur, SDR-IQ, broadband loop, and novel applications. 
Malcolm G3NZP, David 2E0DDG & Richard G4ANN





Mike Underhill G3LHZ



November
Wed 23rd


Wed 30th
Technical Systems in Air Traffic Control in the UK

HARC/CARC Challenge.  This promises to be another fiendishly plotted but fun contest by our friends from Horsham ARC.  Do come along to take part in this fun evening.
Alan O’Donovan G8NKM



December
Fri 2nd


Wed 7th
CARC Annual Fish and Chip Supper – put it in your diary!

Introduction to Microwaves Part 2 by Derek G3GRO.  A follow-on to Derek’s excellent talk earlier in the year.

January
Wed 25th
Annual General Meeting
Another date for your diary!








Sunday, September 4, 2011

CRAWLEY ROUNDTABLE


The 2011 Crawley Roundtable is on Sunday September 11.
As usual we will be running the UK Microwave Group annual construction contest for the G3VVB trophy. Please do bring along your constructed equipment and enter the contest. Entries do not necessarily need to have been constructed during the last year.
Do come along and support the construction contest and hear the talks.
Below is the finalised timetable:
 
Microwave Round Table - Sunday 11th September 2011
          Crawley Amateur Radio Club
 
 
10:00AM   Venue opens
 
12:00     Construction contest judging commences
 
13:00     Lunch (rolls, sandwiches, tea/coffee available)
 
13:30     Opening address by Derek G3GRO
          and the results of the construction contest
 
14:00     'An Experimental Transverter for 3.4 GHz' or "Fun with filters"
           - by Mike Scott G3LYP
 
14:45     'An Examination of Local Oscillator Noise'
           - by Chris Bartram GW4GDU
 
15:25     Break (tea & coffee available)
 
15:45     'A simple Diode RF Power Meter usable from HF to 6.0GHz'
           - by Peter Head G4FYY and Derek G3GRO
 
16:30     End of meeting
 
 
If you need further information, contact Derek Atter G3GRO or Chris Whitmarsh G0FDZ 
 





Access to Site:



The access road into Tilgate Recreational Centre

and the CARC Clubhouse (Hut18) is via the sliproad at the new traffic lights on

the southbound carriageway of the A23 (Brighton Road), just south of Crawley

heading towards Brighton, and about 200m from the Broadfield Football Stadium

roundabout which is well signposted.
The Clubhouse is accessed via a fairly narrow track for about

200m. Watch out for anti-traveller caravan chicanes then turn right at the 3rd

sleeping policeman!


· 

More Directions:   CARC Directions
· 

Roundtables:   General Info
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