5 Mar 2018
Sunspots - Monday March 5th 2018
Solar flux is 68 today. The sunspot number is zero still. A=6 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.
It would appear that lithium-ion batteries look optimal for range and weight. The disadvantage is that lithium is a rare earth material with...
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