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[TenTec] amp keying loop weirdness

To: tentec@contesting.com
Subject: [TenTec] amp keying loop weirdness
From: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 23 Feb 2006 14:58:53 +0000
List-post: <mailto:tentec@contesting.com>
Re the QSK probs with amps some are having, FWIW, I recall having some kind 
of QSK amp keying loop weirdness problem a couple of years ago (can't 
clearly recall what it was--the amp either didn't key, or hung or something 
like that) and it turned out the problem was somehow related to my use of a 
really long keying cable.  I used a 10 or 20 foot long phono cable--the kind 
RS sells with the black jacket that costs around 3 dollars with the phono 
plugs on the ends, and when I switched to a much shorter cable, around 5 
feet or so, the problem went away.   The continuity of the long cable was 
fine--no shorts; no opens.  Of course with the Orion QSK thing it sounds 
like a rig control problem but if you ever encounter anything odd with the 
amp keying and you have real long key lines try shortening them.

rob / k5uj

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