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Re: [TenTec] Need more help on RIT/XIT

To: tentec-list <tentec@contesting.com>
Subject: Re: [TenTec] Need more help on RIT/XIT
From: Martin Ewing AA6E <aa6e@ewing.homedns.org>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 13 Jul 2008 13:20:40 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
This discussion is fascinating.  I hope it leads to a definitive fix. 

My Orion gets into the stuck RIT mode fairly often, but I (almost?) 
always find that it goes away if I grasp the RIT encoder knob and pull 
firmly outward.  Others have reported this, and it naturally leads you 
to think about a bad encoder or solder joint.  But possibly I am flexing 
the board to jostle the connector just enough to clear the tin/tin oxide 
barrier - if that's what it is. 

A permanent fix might be to add some bias current to the appropriate 
circuit path - a milliamp, maybe.  Or get a cable with gold plated 
connectors.  (Or put in a cell phone vibrator to loosen things up on 
command? :-)


Martin Ewing, AA6E

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