[TenTec] Corsair II Frequency Drift

[Steve Berg]

Tonight while enjoying a nice CW ragchew, the other OM told me that my 
rig was changing frequency about 100 HZ when keyed.  I have never been 
told this before, so I experimented a bit, and it looks like that 
happens according to the display.  The counter shows an increase in 
frequency when keyed of about that amount.  It seems to do it with both 
the internal PTO and the external VFO.  I have checked, and the offset 
is switched off.  Does anyone have an idea of what is happening here?

73,

Steve WA9JML