A lot of beacons now have PI4 sequences. I have no idea how this compares with the more common WSPR digital mode. Looking around for decoders I spotted this from OZ2M.
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.
Buy me (a virtual) cup of coffee
This is NOT at all compulsory, but this would help offset some project costs.
Any donations most gratefully received.
https://ko-fi.com/rogerg3xbm
Any donations most gratefully received.
https://ko-fi.com/rogerg3xbm
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Featured post
QRP CW
Recently, there was a 50mW CW QSO on 20m using this homemade TX. I forget who designed and built this.
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