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[TowerTalk] Yaesu rotators - who would have thought??

To: TowerTalk <TowerTalk@contesting.com>
Subject: [TowerTalk] Yaesu rotators - who would have thought??
From: Pete Smith N4ZR <n4zr@contesting.com>
Date: Tue, 29 Apr 2014 06:34:29 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Yesterday, during the process of linking my two Yaesu rotators to computer control through ERC, I suddenly found that one of them (a G-1000DXA) was turning much more slowly counter-clockwise than clockwise. After scratching my head a bit, I swapped rotor cables between the two controllers to make sure it wasn't a controller problem. Imagine my surprise when everything worked normally, not only with the swapped cables but also when I put them back as before.

My theory is that these rotators are sensitive to any resistance in the path between the direction potentiometer and the controller, and that the plugging/unplugging wiped off some oxidation inside one of the Molex plug/jack combinations on the back of the controller. I've seen something similar in the past with the Jones plugs at my entry panel, where a little CAIG conductivity juice made all the difference in restoring normal operation.

FYI

--
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
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