Maybe it's not a bug and I'm just not getting how it should work, but
operating manual states that sidetone frequency is only for operator's
convenience.
It looks like this frequency is added to the dial frequency when switching
from digi to CW. I receive a signal with digi filter, switch to CW filter,
and the signal is shifted by the frequency set in the sidetone frequency
setting.
Let's say I have the sidetone set to 400 Hz. I connect QMX to the fldigi
on a PC to see the waterfall. I set digi filter, tune to a signal, I can
see the CW line at 200 Hz. I switch the filter to CW without changing the
frequency and the signal moves to 600 Hz (400 Hz + 200 Hz).
Is it supposed to work this way or is it a bug?
