Solar CDX

Rocky Road

Yesterday, my brain was mush, so I didn’t attempt anything at the workbench. I turned on the radio and tuned around the ten meter band, not expecting to hear much. However, I did hear considerable activity from South America, calling with “MM TEST”, which turned out to be the Manchester Mineira contest. Since the contest originated in Brazil, it wasn’t surprising to hear so many stations from that country. I had my first contacts with Peru and Ecuador, and logged a few with Columbia, Aruba, Cuba, Mexico and a few U.S. stations. I heard Chile and Panama, but didn’t manage to land them. I only caught the last couple hours of the contest and did not try running at any point.

Afterwards, I plugged in the 550 mW rockmite 40 and tried calling for a bit. The signal went through my LDG tuner and then my 43 foot vertical wire in the backyard. The band conditions were not great last night, but the activity level was relatively high.  I tried for about an hour, and stopped around midnight. I figured that I might have more luck the next morning, with fewer competing signals (but also fewer listeners awake). I started calling around 6:30 and went about 45 minutes. Local sunrise was 06:27 EDT / 10:27 Z, so 40m was fading towards the end of that period. I didn’t get any responses, but I was picked up at reasonable levels on the reverse beacon network, by stations from Massachusetts and Georgia.

reverse beacon network listing showing ai4sv picked up from 7 to 20 dB above noise

At one point this morning, my ears were nearly blasted off by a New York station operating on 7.031-something. I cranked the RF gain all the way down on the RM40, but it was still loud. The reverse beacon network registered the station at 51 dB above background in Illinois and Maryland — that’s about 10,000 times stronger than my 500mW signal, so I have to guess that the station was using either a linear amplifier or had one heck of an antenna. Even operating more than 3 khz away, he cooked me.

So, no cigar so far on the higher-power RM, but I am sure that the signal is getting out. Maybe I need to keep an eye on the QRPspot site.

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