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  2. Slewing sound frequency

Re: Slewing sound frequency

howard lazarus <lazhow@...>
 

Hi Brian;

I have had the 600 GTO for close to two years now getting mine in Oct 19998.
The sound on occasion does change and at times it depends on the balancing
of the weights or the EP you are using. The slight change in noise is there
but of absolute no importance and will not effect the accuraqncy of the
slew. SO ENJOY!
Howard Lazarus

----- Original Message -----
From: Brian Herbst <dbherbst@...>
To: <ap-gto@...>
Sent: Thursday, April 27, 2000 7:30 PM
Subject: [ap-gto] Slewing sound frequency


Hello,

I am a new owner of a 600EGTO mount and have had a couple of
opportunities to use it. One thing that is obvious is that I am
going
to need an illuminated reticle for the callibration routine. Also,
since my left eye is next to useless, I will be anxiously awaiting
any
polar alignment scope that may be made available (next to impossible
for me to focus just one eye to infinity through the RA shaft thus
seeing Polaris is very difficult for me). Anyway, I have a question
for the veterans here: Is it normal for the mount to fluctuate in
sound frequency as it is slewing to objects? I have the slewing
speed
set at 1200 so I would have expected a uniform motor 'whine' as the
slewing is taking place. For the most part that is what I get but
occasionally it will briefly go down in frequency (as though it is
slowing down) and then recover to the steady whine that I presume
represents the proper slewing speed. It seems to be OK regarding the
pointing accuracy so maybe I am being picky with my observations?.....
Any others here observing the same thing and is this normal?

Brian Herbst


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