[TowerTalk] wandering heading Green Heron control box

[Julio Peralta]

I've been having the problem as well but didn't know where it was coming
from. Since I have my GH box connected to my computer through DXLabs and
PSTrotor I was sort of thinking that the mysterious movement was due to some
problem with the software. Like you I would be very interested in a fix.

I'm sure you have the same concern that the rotor will take off on it's own
and wrap the coax around the tower and damage something.

Julio, W4HY

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Grant
Saviers
Sent: Thursday, December 08, 2016 10:26 AM
To: Tower Talk
Subject: [TowerTalk] wandering heading Green Heron control box

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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