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Re: [TenTec] Orion drops lock?

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] Orion drops lock?
From: "John Frazier" <fraz1@bellsouth.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 20 Sep 2009 07:44:29 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Hello Martin:

I believe you have self-diagnosed the problem.  I had to have TT realign the 
synthesizer on one of my Orions.  It exhibited very similar behavior.

You may want to call TT and talk with Tony, but I think you've already found 
the problem.

73 John
----- Original Message ----- 
From: "Martin Ewing" <martin.s.ewing@gmail.com>
To: "tentec-list" <tentec@contesting.com>
Sent: Saturday, September 19, 2009 10:41 PM
Subject: [TenTec] Orion drops lock?

> My 565AT is developing an unpleasant operating mode, where the main Rx
> output stops. This is on 40 CW, for example, but probably on other
> modes/bands also. If I fiddle with the VFO, I can bring it alive 
> seemingly,
> for a time.  I hear CW signals, but changing the VFO setting does NOT tune
> the Rx.  I have no idea what freq. is actually being received!   In this
> mode, there is no Tx output, either.   It doesn't matter whether VFO A or 
> B
> is selected.  The sub Rx works normally.
> I have tried power cycling, master reset, and battery reset.  None of 
> these
> cures the problem.  If I power off for an hour or so, the radio comes up
> normally.  The radio is happy to run for many hours until it flips into 
> this
> non-operating mode -- it does not appear to be triggered by operating
> temperature alone, but some random operating event or condition that I
> haven't been able to narrow down.
> Without digging into the radio, I have the sense that there's probably a
> phase lock loop that has drifted close to the edge of its operating range.
> It ought to be a simple thing to adjust (he says).
> Has anyone else seen this problem?  Is there a field adjustment procedure?
> Or is it time to ship it back to TT?
> Thanks for your advice!
> 73 Martin AA6E
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