I would check the boards mountaing screws ,
> Date: Wed, 3 Feb 2010 16:52:38 -0500
> From: dhhdeh@comcast.net
> To: tentec@contesting.com
> Subject: [TenTec] Omni VII: Need Help with a Strange Problem
>
> Hi All,
>
> My 18 month old Omni VII has recently developed a 'funny' after performing
> flawlessly since purchased.
>
> This rig has the ATU which was installed at the factory.
>
> When first starting the radio cold, whether connected to my usual antenna,
> other back-up antennas or a dummy load, upon activating the ATU, the rig will
> inject terrible feedback into the speakers and/or headphones that consists of
> a cross between a 60 cycle AC hum and RF feedback. It's really bad.
>
> The ATU hunts for a match but fails and the receiver seems somewhat de-sensed
> when it switches back to receive from the tune cycle.
>
> then...
>
> After the radio has warmed up for 15-20 minutes it operates as normal with no
> sign of this condition throughout the remainder of its use during the current
> session. Once cold, it repeats again.
>
> A conversation with Gary at TT Service suggested that I first do a master
> reset, which I have not done yet deciding instead to see if anyone else has
> had a similar experience or can offer any alternative suggestion.
>
> My suspicion is an ATU component or SWR detecting circuit component that is
> nearing a failure??
>
> I'm trying to first avoid clearing my settings via a reset or ultimately
> having to send it back to TT, which may have to be done in the end.
>
> Open to any suggestions that can be offered.
>
> Thanks in advance,
>
> 73 de N1LQ-Dave
>
>
>
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