Call Paul at TenTec. He has never steered anyone wrong as far as I know.
He is more
Than willing to point you in the right direction. One of the procedures he
told me to try on my OMNI VI+ was "not recommended for field servicing"
as the settings were "extremely sensitive" - But he talked me through it
anyway. Even with my limited equipment I was able to get it "close enough
for government work". I'm talking a 50 dollar surplus scope, a cheap freq.
counter, a Bird 43 and some good VOM/DVM meters from Simpson and Fluke that
I have around here. I learned a LOT more about the rig than I would have
had I shipped it back. But then again, I am not intimidated by those little
things inside the big box. Amazing what you can do with vice grips and a
From: firstname.lastname@example.org [mailto:email@example.com]
On Behalf Of Martin Ewing
Sent: Sunday, September 20, 2009 2:39 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Orion drops lock?
Right, but is there a do it yourself prescription, short of digging in with
the probes and actually trying to *understand* things? (Awful thought!) I
could/will ask TT, but I wonder if anyone has done it out there. (Shame
that there is no repair manual.)
I can't make the condition appear on command, so that complicates matters.
It's intermittent. Experience (more than I have with the Orion) would
73 Martin AA6E
On Sun, Sep 20, 2009 at 8:44 AM, John Frazier <firstname.lastname@example.org> wrote:
> Hello Martin:
> I believe you have self-diagnosed the problem. I had to have TT realign
> 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
> the problem.
> 73 John
> ----- Original Message -----
> From: "Martin Ewing" <email@example.com>
> To: "tentec-list" <firstname.lastname@example.org>
> 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
> > 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
> > 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
> > It ought to be a simple thing to adjust (he says).
> > Has anyone else seen this problem? Is there a field adjustment
> > Or is it time to ship it back to TT?
> > Thanks for your advice!
> > 73 Martin AA6E
> > _______________________________________________
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> > TenTec@contesting.com
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