Terry,
>From my experience, it is the controller, if the rotor appears to turn
freely and smoothly and just the reading is bad.
Check that the internal pot in the rotor unit goes from "about" zero ohms to
"about" 450 ohms moving the rotor full left to full right. The plug must
be removed from the controller to make the reading. Easiest thing is to
visually move rotor, disconnect plug, measure the two appropriate pins. Full
left, disconnect, measure (expect zero ohms). Move "about" 180 degrees right,
disconnect plug, measure (expect 180 ohms). Then move full right, disconnect
plug, measure (expect 450 ohms).
If that checks okay, I think you have a controller problem (like MANY of us
have had). And that is VERY common.
Steve, W5KI
Date: Thu, 11 Dec 2008 14:17:20 -0500
From: "Terrence R. Redding Ph.D." <terry@oltraining.com>
Subject: [TowerTalk] Yaseu Rotor
I have a Yaesu G-800 rotor and while it turns fine, the rotor control only
moves about a quarter of the dial, but the rotor itself appears to be
turning nearly four times that amount.
Any idea what might be wrong? Is it in the rotor or the controller?
Terry - W6LMJ
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