I thank all who had suggestions in regard to the control box tracking for a
Yaesu 2800 rotator. After several discussions with Yaesu, it turns out that
there is a sensitive adjustment procedure for 'fine tuning' the indicator.
The Manual devotes 1 full page to final adjustments to the various stops the
rotator performs. There is an adjustment pot and switch on the back of the
I am still adjusting and 'fine tuning' but the first two adjustments seems
to have cured the problem.
----- Original Message -----
To: <firstname.lastname@example.org>; <email@example.com>
Sent: Tuesday, March 05, 2002 9:04 AM
Subject: [Towertalk] Yaesu indicator
>Greetings, TowerTalkians --
> I've got a question on the NEW Yaesu rotators. About a year ago or so
>they changed some of the rotator design to include DC motors and they went
>from a 5-wire control to 6-wire. My question has to do with the NEW
>not the old one.
> Observing a 2800 rotator, everything looks normal. It starts, stops,
>goes in the desired direction when you ask it. The problem is that the
>control box acts kind of weird. Sometimes the indicator when started will
>back-up in the opposite direction before heading in the right one.
>the indicator will keep going and overshoot the actual heading when it
>Sometimes the rotator heading and the indicator don't match but toggling
>rotation switch will get it to catch-up to the correct heading. Is this
>"normal" for the new configuration? Or is there a control box/indicator
>problem? The indicator and rotator headings can be up to 45 degrees off.
>I said, the rotator actually appears to be operating just as you'd expect.
>The rotator is less than six months old. Any ideas?
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