Hi John,?
Welcome to the group! I have info on my site (link below in sig) about putting the BITX40 on USB with digital. If you need a hand at all, let me know :)?
Aside from those two mods, you have to run the VFO in positive offset instead of negative, or else change the BFO frequency.?
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Ryan Flowers W7RLF
https://miscdotgeek.com
