I had one of those at 150 feet turning a Force 12 C-4XL from 1999 until
lightning burned it out in 2005. It was mechanically in perfect condition.
Now there is a 1000DXA in its place.
I wonder if you have high winds or some other weather events causing the
failure.
Keith NM5G
-----Original Message-----
From: yaesu-bounces@contesting.com [mailto:yaesu-bounces@contesting.com] On
Behalf Of Paul J. Piercey
Sent: Thursday, August 28, 2008 12:46 PM
To: yaesu@contesting.com
Subject: Re: [Yaesu] G-800DXA Rotator - Latest development
As noted, I had some issues with my G-800DXA. After returning from a week
away, I noted that my beam was no longer pointed the way I had left it so,
after investigating, found that the rotator was no longer functional. To
make a long story short, I took the rotator down today to find that it had,
once again, self destructed. The insides look as if a bomb had gone off in
the housing.
This is the second time this has happened. I returned it to Yaesu for repair
and it had worked fine up until now.
Anyway, I won't be buying another Yaesu rotator as long as they are
constructed out of cheap aluminum. My beam is not large by any means (3el
SteppIR with 30/40 dipole) compared to installations I've seen but for some
reason, the G-800DXA is unable to handle it.
73 -- Paul VO1HE
> -----Original Message-----
> From: yaesu-bounces@contesting.com
> [mailto:yaesu-bounces@contesting.com] On Behalf Of Paul J. Piercey
> Sent: March 3, 2008 20:24
> To: yaesu@contesting.com
> Subject: [Yaesu] G-800DXA Rotator
>
> I have always been a fan of Yaesu rotators until now. I got a G-800DXA
> last year and I have to admit that I am truly disappointed with it's
> operation.
>
> I had a G-400RC for 15 years and it never gave me any trouble. I
> upgraded my beam and the 400 wouldn't hold the antenna in the wind so
> I opted for a heavier duty rotator and the 800DXA seemed to fit the
> bill. I have found that it is very good at holding its position but is
> sadly lacking in rotating power. It struggles in moderate wind and,
> currently, is unable to rotate my antenna any more than 5 degrees for
> some unknown reason.
>
> The beam had spun on the mast so I dropped the tower and tilted it to
> tighten up the mast clamps. When I had the beam loosened completely, I
> tried to rotate the mast to the correct position. When the mast had
> almost reached the proper alignment, it stopped and would go no
> further, nor would it go back to where it came from. I checked the
> installation and found nothing that could be impeding the rotation.
> After an hour of testing and trying to get it to move, it finally came
> free and I could complete the job.
>
> Once I had tilted the tower back to vertical, I tested the rotator. It
> rotated in one direction and, when testing it in the opposite
> direction, it stopped and has not been able to move more than a few
> degrees since.
>
> It seems that even the smallest resistance causes the thing problems.
> I have about 80ft of cable from my shack to the rotator.
>
> This is not the first time it has locked up. It happened a couple
> months ago and I thought it may have been due to freezing rain but we
> have had much worse weather since then and, until this morning, had
> been operating, despite it's lack of turning power, in wind, cold,
> freezing rain, etc.
>
> Anyway, I will be completely re-aligning the rotator and re-cabling it
> as soon as the weather gets better but if it continues to operate in
> this manner, I'll be replacing it.
>
> Does anyone know the rotational torque of this rotator? If mine is any
> indication, it can't be very high.
>
> 73 -- Paul VO1HE
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