20 Oct 2017
Sunspots - Friday October 20th 2017
Solar flux is 74 today. Sunspot number is again zero. A=12 and K=2.
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Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
With QRP a good antenna can often help. At the same time many rigs lack tuners. Amateur Radio Weekly reminded me that a 6dB attenuator d...
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