[amsat-bb] Re: Yaesu 5500 rotor question
domenico.i8cvs at tin.it
Fri Aug 3 18:06:04 PDT 2012
Hi Floyd, KC5QBC
With the upper assembly separated from the lover part of the rotor
rotate the azimuth motor until the position of the slider of the 500
ohm potentiometer comes mid way i.e. 250 + 250 ohm i.e. until it
will show the same voltage of about 3 volt betwen terminals 1 and
2 and terminals 2 and 3
Terminal 2 is the slider of the potentiometer i.e. is the cursor.
Now mechanically mount again the upper part of the motor hood
midway betwen both limit switches.
It's all you have to do to get again the calibration between the
potentiometer and the upper part of the assembly.
----- Original Message -----
From: "Floyd Rodgers" <kc5qbc at swbell.net>
Cc: "Amsat Buleitin Board" <amsat-bb at amsat.org>
Sent: Thursday, August 02, 2012 3:10 AM
Subject: [amsat-bb] Yaesu 5500 rotor question
> I had a 5500 azmith rotator lockup over winter. I finally had time to
> take it down and find the problem. Now a different problem. I forgot to
> mark the housing position before separating the upper/lower azmith
> assemblies. I think I know where it was pointed, but how can I tell
> where it should be aligned? Is this really a non issue?
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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