Well, I hacked in the code to change the Local Oscillator (clock 1) between 40,035,000 (current default) for USB modes and 39,987,000 for LSB modes.
Seems to work.? I still need to adjust the spectrum and waterfall.
One thing: I was looking for a single place in the code to detect mode change, but could not find one. The mode appears to be changed in both set_mode (sbitx_gtx.c) and sdr_request (sbitx.c), so currently I'm changing the LO in both places.
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73,
Mark, N8ME
Mark Erbaugh