Tag: m0snb

The first 50 MHz contest of the year

Members of the SNBCG took part in the first 50 MHz contest of the year at the Kelvedon Hatch SNB using the club call M0SNB. The contest ran from for 3 hrs on Sunday morning (10 till 1) the weather was forecast to be 23C and sunny. We opted to operate outdoors using a 5e beam on a 10m pump up mast. The radio was an Icom 7600 and Expert 1.3 K-FA provided 400w power was provided by a Honda EU20 generator.

The band seemed very busy, with lots of stations taking part, and I think the good weather helped encourage more portable operating. Over the course of the next 3 hrs, we worked 63 Q with our best DX into EI at 585 KM. Conditions seemed average, but we did have some very rapid QSO on some of the longer paths, sounded very much like aircraft flutter.

A very enjoyable contest in the sun, thanks to everyone we worked.

You can find the claimed scores online.

You can view the RSGB VHF contest calendar online.

You can read more about the Kelvedon Hatch Secret Nuclear Bunker and the SNBCG here.





Spring Bank Holiday Radio Weekend

Everyone loves a bank holiday weekend (unless you happen to be working) and last weekend was a 3 day radio event run by LEFARS. The event is based at the Rainbow and Dove PH, yes really a radio event in a pub garden !

The event used the special event call GB2LRS on 7 and 144 MHz, while 21 MHz used the Secret Bunker Club call M0SNB. On 7 MHz the club used a doublet antenna, on 21 MHz we used 400w and 4e home-brew beam aerial. The beam was mounted on a 10m Clark pump up past, with a recently purchased Yaesu G1000S rotator. The linear amplifier was a solid state by Expert 1.3K providing flawless power on the Honda generator.


While the band conditions did provide a challenge, we did prove that even on a quiet band its possible to work DX with some power and a good antenna. We worked some nice DX including Uruguay, Brazil and Philippines to name a few.


In the evenings we turned our hand to 3.5 MHz, and I made a simple dipole to hang from the mast. We placed a 1:1 Balun at the feed point, and fed the antenna with coax. The antenna was cut to provide a match on 3.7 MHz, so no ATU was required. The addition of 400w allowed us to put out what many described as a phenomenal signal. I checked the signal on the Hack Green SDR, and from this screenshot you can judge for yourself. The signal reported by Hack Green was -42 dBm.

Listen to the audio clip of M0SNB operating 400w on 80m recorded via Hack Green SDR


Fred G3SVK also guest operated, working over 100 station on CW including some USA stations. The total number of QSO over the weekend was 320 mostly on SSB. The conditions at times did throw up a few surprises, at one stage I could hear and worked stations in Ireland at 59 on 21 MHz !

It was also nice to see Charlie M0PZT and Peter G0DZB operating portable both using Elecraft KX3s although both torturing their radios with some old school on-off keying 🙂

27261870941_0b3b86bbc2_k 27261898731_4f6b13dc13_k















Thanks to the LEFARS team for organising another great weekend of radio.

SNBCG Christmas Dinner

Members of the newly formed Secret Nuclear Bunker Contest Group met for its inaugural Christmas dinner this weekend. The event was well attended by 10 members, enjoying a traditional Christmas dinner, crackers and unavoidable cracker jokes.

Pre meal drinks, from left to right Chris G8OCV, Dave G7UVW, Bill G0BOF and George M1GEO.

Left Kevin M0TBX and Dave M0YOW enjoying a beer.









Thanks to Peter G0IAP for organising the event and to everyone that attended. The SNBCG is now affiliated to the RSGB and holds the club call M0SNB and permanent special event call GB0SNB so look out for us in contests in 2016.


Left (front to back) Bill G0BOF, Chris G8OCV, Dave M0TAZ, Fred G3SVK, Diane

Right (front to back) Dave M0YOL, George M1GEO, Dave G7UVW, Kevin M0TBX, Peter G0IPA
















From left to right Dave G7UVW, Chris G8OCV, Fred G3SVK and Diane

© 2015 Dave, M0TAZ