D R Evans#CQWW assisted and unassisted logs.
Evolution of the percentage of run QSOs in #CQWW, 2005 to 2025.
Says quite a lot about the state of things, doesn't it?
These are probably better indicators of long-term activity than the raw number of logs submitted for #CQWW.
CQ WW video maps, 2005 to 2025:
SSB:
160m: https://youtu.be/Rhs7faK8ivU
80m: https://youtu.be/ucy-5BOLP-g
40m: https://youtu.be/LC-UbfxPrQ8
20m: https://youtu.be/xVRee8XNKq0
15m: https://youtu.be/XrJ0Bs7QT8U
10m: https://youtu.be/sA9bawWmpgE
CW:
160m: https://youtu.be/q6ZH5TbDODQ
80m: https://youtu.be/QXzuUg48uIE
40m: https://youtu.be/MJLuIq_Bjn0
20m: https://youtu.be/HPd05DK9k1Y
15m: https://youtu.be/Tmn-p0IyPDA
10m: https://youtu.be/RJkXGYxThXw
#hamradio #radiosport #cqww #cqwwcw #cqwwssb
Example frame:
Fabian Kurz, DJ5CW/SO5CW#hamchallenge week 3: Understand how your antenna works. 🧵
Let's check out the lowband vertical antenna I built before #CQWW in November. It is 16.5m long, built with an 18m Spiderbeam mast minus the top element. About 18m of wire are coiled up on it (for stability), and it is tuned at the feed point with a CG3000 automatic tuner. There are 12 ground radials with an average length of 10m below it. When I built it and laid out the radials, I noticed that the feed point impedance stayed at about 37 Ohm at the resonant frequency of ~ 4.1 MHz any more after 12 radials, so I left it like that. HC03 @hamchallenge #hamradio #antennas
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Cleaned and augmented versions of the public logs for the #cqwwcw and #cqwwssb contests are now available for the period 2005 to 2025:
http://drevans.blog.enginehousebooks.com/2026/01/cleaned-and-augmented-logs-including.html
The public logs for the 2025 #CQWWCW contest are now available in this directory:
The public logs for the 2025 #CQWWSSB contest are now available in this directory:
In the middle of the #CQWW contest, my SO2R Mini+ started to generate illegible Morse code. I didn't have the nerve to debug this during the contest, so I continued with a changed setup. Today I finally found some time to analyze the problem. Turns out something went wrong with the K3NG keyer firmware; the dots were normal but the dashes were almost infinitely short (1st picture). Re-flashing the Arduino and even (or so I though) deleting the EEPROM didn't fix this. However, after I resetted the keyer by holding both dot and dash paddle held down, everything was back to normal. This confuses me; I wish I could have understood what setting was corrupted, but at least it works again and I know how to fix it next time. This also sort of fulfills the @hamchallenge challenge for week 45 🙂
#HC45S
#HC45S
