http://ik1zyw.blogspot.co.uk/
You may recall that the HB100 is a very low cost Doppler radar module that can form the heart of a wideband FM 10GHz transceiver.
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.
I have to confess I have no idea where these are and the callsign does not help. In a short while I shall look them up. This is a QSL card....
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