Can we have options (2,3,4) then for the attenuator behaviour switching attenuator when in idle mode? One of the excellent things about the QA-403 is the excellent D/A signal generator and its low noise and distortion. It can virtually replace a standalone sig gen as it stands.
Sure, the behaviour is not ideal as it stands, but couldn’t you employ muting in the D/A itself during that particular transition? D/As have integral ramp up/down muting don’t they?
I also see there’s some strange glitches in the waveform at the start of the 7-8dBV ‘event’.
Cheers,
John