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[TowerTalk] wandering heading Green Heron control box

To: Tower Talk <towertalk@contesting.com>
Subject: [TowerTalk] wandering heading Green Heron control box
From: Grant Saviers <grants2@pacbell.net>
Date: Thu, 8 Dec 2016 07:26:15 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Most of my GH controls (7 of 8) have remote pulse width modulator amplifiers to drive KX0G rings. A problem with them is extreme noise from the PWM amps, which I can only tame a bit. What the noise makes obvious is when a GH causes rotation *on its own* and that is the problem I'd like to understand/fix. They exhibit spurious, random movement, with no USB connection or change in the direction setting pot.

There is no solution from GH other than some production had "noisy pots". I've observed the problem on most of my controllers, so wonder if others have had this problem and know of a fix.

Grant KZ1W




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