[TowerTalk] TowerTalk Digest, Vol 39, Issue 81

Robin Midgett K4IDC at comcast.net
Tue Mar 28 23:09:54 EST 2006

Hi Doug,
I had similar problems with a G1000 last year...ended up replacing the 
rotor cable, the problem disappeared. I replaced the cable with gell filled 
& shielded 5 pair telephone cable; hopefully that will prevail against any 
moisture infiltration.

One test you can do is monitor the voltage from the wiper terminal of the 
pot in the rotor, at the control box. If the voltage there is varying 
wildly as the rotor turns, then the problem is between the controller and 
the rotor (cable included). If the voltage from the pot is steady in it's 
increase or decrease as the rotor turns, then the problem is in the 
controller. This helped me find the problem in mine; that and substituting 
another control box (G-800).

At 09:39 PM 3/28/2006, you wrote:
>Message: 9
>Date: Tue, 28 Mar 2006 20:38:14 -0500
>From: "Doug Rehman" <rehman at surveil.com>
>Subject: [TowerTalk] Yaesu Rotator Problem
>To: <TOWERTALK at contesting.com>
>Message-ID: <00f801c652d1$72c4a410$a701a8c0 at office>
>Content-Type: text/plain;       charset="us-ascii"
>I have a Yaesu G1000 rotator with a G800-S controller. When I put the 
>combination up last year, it worked perfectly; it recently developed a 
>problem. The pair is set up with south center and the overlap from south 
>to west. From south to south, the needle moves at a varying speed and does 
>not accurately report the rotator's position; it is accurate at when the 
>rotator is at south (either the counterclockwise stop or when passing 
>through south going clockwise into the overlap area). At the clockwise 
>stop (due west),
>the needle points south-southwest.
>Any ideas?

Robin Midgett K4IDC
VHF+ Glutton EM66se 

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