Category Archives: Contest

CW National Field Day 2023

NFD 2023 Report by David Honey M0DHO

Setup started at 10:00 Saturday in sunny conditions on a different field from our usual one. Setup went well, and we seemed to be operational by about 13:00. Initial testing of Jim’s automatic switched dipole showed it was working as expected on all bands. So it seemed like we we’re going to be gremlin free. Spoiler alert – that wasn’t to last!

Conditions seemed good on 15m and 20m, but with 5W QRP, it seemed to be a struggle to work on 15m. A few hours later, on trying to open the multipliers window on the 1st laptop, Win-Test crashed, and any attempt to open the contest file resulted in Win-Test crashing. Panic! Fortunately the 2nd laptop had its own replicated copy of the contest, and I was able to export Cabrillo, share it across the network, create a new contest file on the 1st laptop and import. However, about an hour later Win-Test crashed again. I decided to switch to DXLog which fortunately was installed on both laptops. Exported the log again from 2nd laptop, and imported into DXlog on 1st laptop. The Win-Test crashes lost us about 30 minutes operating. DXLog was mostly trouble free.

Late in the evening, we tried 160m, but this time, the antenna would not tune as it had done earlier. Investigation showed that the switch box at the end of one of the 80m ends was not working – it must have failed in some way. We found that if we bypassed it, the auto ATU at the feedpoint would tune OK for 80m and 160m, so we had a workable solution. That probably lost us about 15 minutes operating time. So in total, these various gremlins cost us 45 minutes.

Conditions were variable. 20m was a solid band for us. During the day, 40m seemed more of a struggle, but was better in the early morning and late evening. Conditions on 80m and 160m seemed OK – it was nice not to have heavy static crashes on those bands that sometimes plague NFD.

But there seemed to be fewer German portables, and less activity on both lower bands than I remember from previous years. Perhaps we were a little late switching to the low bands. There had been good signals on 15m when we started, but it seemed to be struggle to be heard with 5W. The only significant opening on 10m was on Sunday. There was Es around, but not often to southern UK.

Operators rotated mostly around Jim G0LHZ, Michael M0MPM, Geoff G4AAO, and David M0DHO,  taking turns operating and spotting. It was cold overnight – I could see my breath in the tent in the small hours of Sunday. I was glad when Nick M0NPK relieved me around 4am on Sunday – by then my hands were getting cold and I was glad to climb into my sleeping bag to warm up!

There was the usual Saturday evening BBQ, and the Sunday morning cooked breakfast, both courtesy of Simon. Chris bought down his recycled washing machine drum for a camp fire along with firewood. Tear down was in sunny conditions but not too hot, and went smoothly.

Many thanks to all who operated, helped with set-up and tear-down, or just visited us.

Thanks to Ace G0ACE for the photos!

Construction Contest

Well done to all those who took part – an interesting evening.

Special thanks to Ian G8NXJ for the pictures.

RSGB CommonWEALTH CONTEST

The RSGB Commonwealth Contest runs from 10:00 on Sat 9th March to 10:00 Sun 10th March. You will hear participants calling CQ BERU (British Empire Radio Union). This is a CW contest in which the participants must be in commonwealth countries such as Australia, New Zealand, Canada, Ghana, The Gambia, Grenada to name a few. A full list of Commonwealth Call Areas may be found at https://www.rsgbcc.org/hf/information/codes.shtml. Stations from those areas may also work Headquarter stations including those from their own call area. The contest details may be found at https://www.rsgbcc.org/hf/rules/2019/rberu.shtml.

Bob G3PJT maintains an interesting site at https://berucontest.wordpress.com/ with the latest news about participants, especially those travelling to some far-flung part of the commonwealth. Our own Don G3XTT will be operating as C56DF from The Gambia. I’m sure he would be delighted to work as many RADARC members as possible!

One of the advantages of this contest is that it is easier for UK stations to work DX because you are not competing with most of Europe or the USA. Saturday afternnoon is worth trying for African stations on 20m. You should also be able to work many Canadians on 20m from mid-afternoon to mid-evening, and on 40m during the evening. It’s worth getting up on Sunday morning to operate between about 06:00 and 07:30 as you’re likely to work VK and ZL on 40m and possibly 80m. There’s a very noticeable lift around UK sunrise that coincides with sunset in ZL.

RADARC in RSGB AFS contests

RADARC participated in three RSGB AFS contests in January – CW, Datamodes, and Phone. Each was of 4 hours duration on 40m and 80m. Typically stations started on 40m and as propagation changed, moved to 80m. In all three legs, it was very noticeable that GM stations had much better conditions on 40m than the Gs, and hence GM stations tended to be the winners or runners-up.

AFS CW
RADARC came 6th in the Local Club category with a team consisting of Don G3XTT, David M0DHO, Jim G0LHZ, and Michael M0MPM. I stayed on 40m longer than many, and this helped to reduce the time at the end of the contest whenI had worked everything on 80m. For details, see https://www.rsgbcc.org/cgi-bin/hfresults.pl?Contest=AFS%20Contest%20CW&year=2019.

AFS Data
RADARC came 24th in the Local Club category with a team consisting of David M0DHO, Michael M0MPM, and Simon M0ZSU. This was my first attempt at a datamodes contest and using N1MM and MMVARI to send RTTY and PSK, and I treated this as a learning exercise. For details, see https://www.rsgbcc.org/cgi-bin/hfresults.pl?Contest=AFS%20Contest%20DATA&year=2019.

AFS Phone
RADARC came 14th in the Local Club category with a team consisting of David M0DHO, Jim G0LHZ, Jonathan M0JSX, and Michael M0MPM. Dealing with the inevitable QRM is one of the challenges. Running with 400W meant that I was able to keep my run frequency on each band. For details, see https://www.rsgbcc.org/cgi-bin/hfresults.pl?Contest=AFS%20Contest%20PHONE&year=2019.