Tried the BFO offset function on the WSPR2 program.
Using the FRoG receiver I set the USB frequency to 10137.490, same in the WSPR settings, and set the BFO offset to 1710Hz in place of 1500.
Spots are coming in nicely on 10MHz with just a piece of random wire indoors.
Later : tests with the RM30 grabber rx input filter, and see if sensitivity is sufficient - then some compact antenna.
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