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Re: [TenTec] Corsair II Frequency Drift

To: tentec@contesting.com
Subject: Re: [TenTec] Corsair II Frequency Drift
From: Bob Towers <mm0rkt@gmx.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 21 Jul 2010 11:00:47 +0100
List-post: <tentec@contesting.com">mailto:tentec@contesting.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.


Bob Towers
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