Tag: cw

70 MHz Trophy Contest and QRP CW

George M1GEO and myself took part in the RSGB 70 MHz trophy contest this weekend at the Kelvedon hatch Secret Nuclear Bunker contest site. The weather was ideal for alfresco operating, using the Icom 7100 and homebrew 6e beam at 10m on the Racal PU12 mast. Using 50w and a 85Ah leisure battery we operated from 11am till 4 PM.


Here you can see the PU12 and home-brew 6e 70 MHz beam. Operating from the base of the mast provided quick access to turn the beam. We managed to work 59 QSO with best DX into Scotland at 518 KM. The QSO map is shown here.

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Meanwhile Rob M0VFC was operating QRP HF on 3.5, 7 and 14 MHz using a range of dipoles. Unfortunately the HF bands have been a challenge at the best of times during the day, and QRP provided to be interesting. After a few hrs operating Rob had completed 30 QSO, and under the conditions that counts as a sterling effort ! Here you can see Rob operating from the boot of his car28269614632_56228cce62_k28371817405_9c30de0d70_k Altogether another great weekend of alfresco operating in the sunshine.


Working CW for people that don’t do CW

This weekend saw a cacophony of CW over the bands, as part of the ARRL DX contest. The idea is to work as many USA stations as you can. They send 5NN and their state, and you send 5NN and your power.

I thought the contest would be ideal to try out the radios in built CW keyer, so I programed it up ready to have a go. As some will know I don’t read CW, but as much is sent via machines / computers these days it will mostly decode in DM780 or you chosen data program.


One programed it was just a case of keep track of what I had worked to avoid dupes, and see what I could add to the log. I used 28, 21 and 7 Mhz and over the course of a few hrs worked 100 stations.

Its always interesting to see the propagation change over the course of the day.

usa cw map

Not too bad for a bit of wire and a couple of hundred watts….

73 Dave M0TAZ