Ted/Rajiv:
I, too, have the same problem and I KNOW that mine's NOT related
to RF getting into the rotor.
Like Rajiv, I believe that the problem is due to the fact that
my rotor, a G-1000S, has no brake per se and the breezes tend to
cause the beam to force the rotor to 'drift' past the dead-zone of
the preset. NOTE that my problems occur ONLY when I'm using the
preset and when it has not been canceled by momentarily pressing
the CW or CCW bar.
My problem often gets to the point that the rotor will begin to
oscillate back 'n forth between the two end points of the preset
dead zone and it'll continut to do so until I deliberately STOP
it by cenceling Preset mode.
I've found that if I set my rotation speed at about half-scale,
I can (usually) get the beam to continue to 'drift in' to its
intended position with out the back 'n forth 'stroking' of the
rotor, but even this sometimes isn't enough. And there are times
when the rotor has been 'quiet' for quite a while and then, all
of a suddem it'll start oscillating back 'n forth again. I guess
this is due to wind drift, but I cannot confirm this.
Sure wish there was a control inside the Yaesu control boxes that'd
allow us to adjust the width of the preset dead zone, to allow for
a bit more drift before the rotor decides to fix things itself.
THIS IS A PROBLEM!
73 - Tom Hammond N0SS
Then Rajiv (N2RD replied:
>I have the same rotor and observe a similar effect, though
>not as frequently. I put it down to the fact that this
>controller has no brake and a gust of wind works out the
>give and backlash of the rotor.
>----- Original Message -----
Ted Sarah (W8TTS) wrote:
>>I just installed a G-800S rotator and have an interesting
>>problem. When it's on every once in awhile the pointer moves
>>a little, about 5 degrees, and then goes back to the correct
>>spot. This would happen every minute or so. I couldn't
>>figure it out, checked the wiring, etc. and every thing was
>>fine. Then I happened to note that it happened every time my
>>2M packet radio, a Yaesu FT-8000, transmitted. Go figure, a
>>rotator with an RF problem. Any ideas on how to correct this
>>other than the usual torid cores on the cable?
--
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