When I tested the SSB harmonic performance with a single audio tone, it looked to me like a CW carrier. I also noted that the harmonics were much lower using the full SSB path.? Is a simple solution to create a pure audio tone that is keyed with the PTT signal line?? The built in side tone generator would need to be significantly filtered to make it into a clean sine wave.
Just an idea, not really into CW myself (at least at this point).
73
Evan
AC9TU
