At NARC we cater for a wide variety of interests within the hobby of Amateur Radio and our membership ranges from complete beginners to those experienced in operating and building electronic equipment.
Beginners have the opportunity to participate in courses run by NARC for all three licence levels. The Social aspect of the club is thriving with family events such as Radio by the Seaside and Radio Active weekend, NARC also operates in various contests and in the last two years we have won the RSGB Club Championships on 80m.
We have a comprehensive club programme running throughout the year, the complete list can be seen on the diary page. We also try to cater for youngsters with our "Bright Sparks" evenings when we dedicate an evening to assist the younger members in construction and operating techniques. We offer club trips and also run the annual Barford Radio Rally which falls on July 6th 2014.
We have a shack at NARC which has HF, 6M , 2M and 70cm along with laptop for data modes and CW on HF along with D-STAR on 70cm the shack is open on informal evenings. We also have a comprehensive loan system available to members including TX/RX, Test Equipment and a library. We run nets on GB3NB on a Monday evening and HF nets with our Twinned Club in Koblenz.
So take look around and we look forward to seeing you at the club one evening.
This week is a social informal evening and construction for anyone who would like to build or test something.
Let me know in advance if there is any specific piece of equipment you would like to use.
Its also RSGB Club championship CW contest so if you enjoy contesting please give the club some points to keep it doing well.
As usual we meet from 1900-2200 in the 6th form common room of CNS.
In the past few years our Construction competition has been part of our AGM and had relatively few entries, but this year we made it an event on its own and after a bit of a slow start it was thrilling to see 11 people enter a total of 16 items for judging. Usually the judging is done by the previous years winner which was Mike M0TVG, but unfortunately he is unwell and so asked me if i would step in as judge. Having been a keen constructor since a teenager and active electronic engineer in my working life I thought this would be an enjoyable and straightforward task, but I had not considered the huge range of both items and skills sets which would be presented, from a 50 year old kitchen table top built bush radio cloned from just the service manual to a digital SWR meter kit to hand etched and drilled circuit boards and state of the art surface mount kits!
I honestly have yet to make my decision on the winner of the construction competition, so if you saw the products and would like to add any constructive thoughts to help me compare and decide please feel free to do so. I took pictures of most of the entries and I have put them in the gallery on the clubs website for all to see.
Whoever wins the trophy this certainly is a case of 'Its the Taking part that counts' and I want to thank all 11 members for sharing their construction projects with us all and hope it inspires others to have a go too! We always offer help to choose and build something on informals - why not have a go?
We are pleased to confirm the following special events coming in the next few months...
International Marconi Day - 25th April 2015
Steve G0KYA is organising the clubs annual display and event at Caister Lifeboat Station showing how to make and set up effective but low cost antenna on sandy shores! If you would like to help set up or operate contact Steve G0KYA.
Windmills on the Air - 10th May 2015
Thanks to Chris G0TZZ we are again able to run a special event station from Wicklewood windmill (near Wymondham) on Sunday 10th May and Chris will start taking names for the rota to setup and operate now. (we will also consider running it on the Saturday if there is sufficient demand, though last year this was mainly on the Sunday). An ideal event for beginners....
Cybernet cb radio alignment
Someone brought to me a cb radio using the cybernet ptbm134 main pcb (Harriers, Rotels, Binatone 5 star and some York radios use this main pcb) The complaint was that it "went hard over on receive." on checking everything (including TX)
i found that it was about 600hz low in frequency, also the power output was low (about 2 watts). The original complaint showed up when i tried adjusting the rf gain control, ie the led s meter went to S9+ and the radio went dead (last time i saw this it was the IF stage oscillating). Investigation showed that it seemed to be only alignment (screws were missing fromthe covers so perhaps someone had been "twiddling"?)
I noticed when trying to align it on transmit that one of the rf transformers in the tx driver stage would only align with the core fully unscrewed out of the transformer to the extent i had to remove the core to get it somewhere near (??) further investigation clearly required. On tuning the PA coils it came up to 4 watts fine but the mystery of the driver transformer remained. Also it seemed "deaf" on receive, ie it wouldn't hear anything less than about 10 microvolts, this came up fine with front end alignment though, i tried a replacement transformer from a scrap board and this cured the poor alignment of the tx driver stage.
I decided to go through the full alignment procedure as per the service manual for the cybernet boarded radios.
Now the radio was "hearing"signals under 1 micro volt and produced 4 watts on transmit and the original problem had disappeared and didn't reappear during a long "soak" test so the radio was passed back to it's owner.
On Saturday 25th April 2015 NARC will once again be running a special event station with the callsign GB0CMS at Caister Lifeboat as part of the International Marconi Day celebrations.
On this day, the closest Saturday to Guglielmo Marconi's birthday, stations around the world will be set up at sites with historical links to the inventor's work. Its the 50th anniversary of IMD this year.
Radio amateurs around the world will contact as many of these stations as possible to try and win an award. We therefore have to hand out GB0CMS to as many stations as possible on HF (VHF/UHF contacts do not count).
The station will run from approx. 9am to 5pm, with set up from 8am, and we are looking for operators for both the 80m/40m station and the 20m/17m/15m/10m station.
Both SSB and CW will be used, so you don't have to be a CW operator.
|Lottery funding enabled NARC to purchase direction finding equipment for training, competitions and as a fun family introduction to amateur radio|