Using the club call M0SNB June saw another chance to operate 70 MHz outdoors in the RSGB contest, with perfect weather at 24c. The contest site at the Secret Nuclear Bunker was used, at some 110m ASL it has good take off in most directions.
Using the homebrew 6e 70 Mhz beam, and the solid-state amplifier to deliver 160w worked a treat, with our best DX EI2FG @ 568 KM.
The antenna uses the latest in “push fit” technology. You can read more about the antenna in this article.
Over the course of the 2Hrs operating, I worked GW, GM, GI, GC and GD.
Here is the QSO map for the afternoon.
The RSGB CC run a series of cumulative contests through the year, you can partake in either a fixed station or out portable. I prefer to operate out portable, as this gives me a significant advantage to attempting this from home.
Using our contest site at Kelvedon Hatch SNB and with the assistance of John M0UKD we set up the following station.
12m Racal 714 push up mast
Homebrew 4e 70 MHz beam a DK7ZB design
Honda EU20 generator
Expert SPA 1.3k FA Solid state amplifier
The weather was forecast to be dry and breezy and so we opted to set up in the fields overlooking the bunker and the mast. The contest ran from 3 till 5 pm, and with around 1hr setup time to organise the portable station, you can maybe see why some people operate from home. It’s quite a lot of effort for a 2hr contest, but on the positive side, you would expect the activity to be condensed into this short timeframe.
Setting up the beam.
The makeshift shack was constructed to keep out the wind, and the odd spot of rain.
The beam worked really well, having very good directivity and F/B ratio despite its small size.
Over the course of the next 2 hrs, we worked 45 stations, in 4 countries. England, Wales, Guernsey and Northern Ireland. Our best DX was GI4SNA at 527 KM.
You can view the claimed scores online.
M0SNB was active in the 70 MHz contest, using a PU12 push-up mast and Icom 7100 + linear amplifier.
The Expert 1.3KFA delivered 160w on 70 MHz into the innovantenna 3/3 (50 and 70 MHz) beam.
The contest ran from 3 till 5 local, and we managed to work 39 stations. The best DX was into Northern Ireland GI4SNA @ 516 KM.