9 Dec 2018
Sunspots - Sunday December 9th 2018
Solar flux is a balmy 71 (well, better than recent days!) and the sunspot number 12. A=10 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.
In my professional life before I retired in 2008 I worked for Sepura as a design manager. In those days we led the way in TETRA radios. The...
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