Re: [TenTec] Corsair II Frequency Drift

[Bob Towers <mm0rkt@gmx.com>]

I had a similar problem some years ago.

I could see a "warble" on my PSK31 signal on the waterfall of my digital 
modes program MixW. It only happened on certain bands which, in 
retrospect, was the giveaway. I rebuilt the PTO a number of times and it 
didn't fix the problem so I put the problem on this reflector. The cause 
was spotted - after much discussion of red herrings - by a K1 who said 
it was the offset voltage pot on the control board. It had a dirty track 
and a squirt of switch cleaner did the trick.
Eventually I replaced the pot.

73

Bob Towers
MM0RKT