Most of the Yaesu rotor problems like that can be traced to low impedance
leaks to ground on the motor drive lines. disconnect the cable from the
control box and measure the resistance of the motor power leads to ground,
most likely there is water in a connector or one of the filter caps or other
components is shorted to ground.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of K2AX
> Sent: Tuesday, October 23, 2007 01:06
> To: towertalk@contesting.com; frc@gofrc.org
> Subject: [TowerTalk] Yaesu g-2800DXA problems with indicator going in
> reverse
>
> I have a yaesu G-2800DXA rotator and just experienced a problem.
> When I go clockwise the indicator needle goes fast as if there was no
> antenna load. Then it goes the normal rate of speed. When I let up on the
> control button the indicator needle stops then goes in reverse for about
> 15 degrees.
> I have used this for 5 years and no problems before this happened and
> there have been no changes on the tower,cables,or in the shack. Any ideas?
> Also when going left(ccw) the box works fine.
>
> Thanks Mark K2AX
> _______________________________________________
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