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Re: [TenTec] Omni 6 Opt 3: Problem on 15 and 10M band decoding

To: tentec@contesting.com
Subject: Re: [TenTec] Omni 6 Opt 3: Problem on 15 and 10M band decoding
From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Reply-to: geraldj@storm.weather.net,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 18 Jun 2006 19:06:54 -0500
List-post: <mailto:tentec@contesting.com>
On Sun, 2006-06-18 at 18:47 -0400, PaulKB8N@aol.com wrote:
> This has been an ongoing problem.  For the first hour or so, I get  voltage 
> off the DB-25 for every band I select.  I use this to  drive some small 
> relays 
> which, in turn, select the appropriate LC combination on  my bandswitching 
> antenna tuners.  After about an hour, the 15M voltage  drops off and maybe 
> another half hour the 10M voltage drops off.  I can  sometimes recover the 
> 10M 
> voltage by switching to 12M first, then to 10M.   I have this identical 
> problem 
> with both radios, but I don't believe it  is my relays that are causing the 
> problem.  
> Paul, K5AF

Probably you are drawing too much current from those ports causing the
driving device to overheat. Its probably an IC, but I don't know that
since I don't have the schematic of the Omni 6 Opt 3.

73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer

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