Hi, Tony--
When the grease in the PTO gets all dried and gummy, the Omni-D may waver in
frequency as you describe. You would be able to hear it in your receiver if
you listen closely. If it seems to warble as you tune in a signal, then
even when you get right on frequency and think it is stable, it may move
slightly as you describe.
Circuit boards in the Omni-D plug into their sockets. My first hypothesis
is that one or more of these pins are not making reliable contact. I would
test this by unplugging each card (one at a time) and re-inserting it
several times to 'clean the contacts.'
There is an internal pot that is used to balance the front panel RIT pot.
My second hypothesis would be that this pot is dirty. The manual tells how
to adjust it after you have cleaned it.
Please let us know how you resolved the problem.
73 and good luck,
Mike N4NT
----- Original Message -----
From: "Tony" <g3zrj@morsekey.fsnet.co.uk>
To: <tentec@contesting.com>
Sent: Tuesday, June 24, 2003 7:25 AM
Subject: [TenTec] Omni D frequency shifting
Hi Ten Tec Gurus
I've just had reports on 14 MHz that my OMNI D is shifting freq by 20 Hz "at
random", I'm hoping that this is known fault and is simple to fix ?
I'd appreciate any assistance
73 Tony G3ZRJ
|