Monday, April 1, 2019

WSPR with an RSPduo SDR



This is WSJT-x running WSPR mode (RX only) along with the software for the SDRduo software defined radio on Windows 10 with the RSPduo SDR.  The trickiest part for me was 1) routing the audio signals with Virtual Audio Cables software, and 2) adjusting audio levels in what seems like too many places to get a decent decode.  It's probably cockpit error on my part, but the audio adjustments seem to be very sensitive and at times almost arbitrary.   At times I could hear the audio in parallel to the decode, and then others, it seemed to decide not to route audio to my external speakers....  More fiddling is needed.

The fun part was decoding Australia this morning a bit after my sunrise and watching propagation change throughout the day; currently I'm seeing Europe pound in and N. America has been open pretty much full time.

The 30m antenna here is a rotatable dipole at about 120' --- probably the most effective antenna I have for a given band, so this is a good place to experiment with WSPR.   This is a keeper...lots of fun.