Many years ago I designed and built this circuit for 10m WSPR. It was later adapted for 10m FT8. It works really well.
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 the world is entering recession, has higher fuel costs and Iran will emerge stronger and the USA weaker. Iran is consid...
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