[Moon-net] Problem with DEMI Transverter

[John Germanos]

I am experiencing drifting with my DEMI Model 144-28HP transverter. Every so 
often, received signals drift slowly plus and minus a few hundred cycles. I 
have also noted that after a couple of transmissions using JT65, my next 
transmission frequency could be as much as 1Khz away from original 
transmission frequency.

Does anyone have any ideas of what might be causing this.

John WB9PNU