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Re: [TenTec] Omni VII ATU Saga

To: "Curt" <rhulett1@consolidated.net>, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni VII ATU Saga
From: wa3fiy@radioadv.com
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 25 Jan 2011 09:35:59 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Curt, maybe the faulty filter was allowing various mixing products to pass 
through to the 
output on transmit.   If so, the antenna tuner would not likely be able to find 
a match for the 
desired frequency and the unwanted products at the same time.....maybe.    :-)

Please tell us what TT says about the matter.  Curious minds want to know.

Glad it's working well!




On 25 Jan 2011 at 8:12, Curt wrote:

> My Omni VII arrived in good condition after a trip to the factory to
> repair a broken internal ATU.  It seems to be working fine, the tuner
> works as well as it did when new.
> What puzzles me is Ten-Tec's note about the repair says "replaced
> defective 455 filter in transmitter chain.  Labor $150, mat'l $3"   I
> haven't a clue about what the 455 filter is or how it could cause the
> ATU to fail.  The transmitter functioned well with the broken tuner
> bypassed and using my external tuner.  What's also bothersome is the
> list of functions checked by the technician don't include anything
> associated with the ATU.
> I've sent a note to Ten-Tec service asking for an explanation, while
> waiting for a response, does anyone on this list have any thoughts
> about how the noted defect would prevent the internal ATU to work, but
> permit the radio to function normally when not using the internal ATU?
> 73, Curt KB5JO 

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