[amsat-bb] Re: Yaesu 5500 rotor question
David Palmer KB5WIA
kb5wia at amsat.org
Fri Aug 3 22:23:10 PDT 2012
Domenico's advice is quite good. I also wrote a section on aligning a
g5500 az rotator from scratch, its at the bottom of this post:
73 de Dave KB5WIA
On Aug 3, 2012 6:18 PM, "i8cvs" <domenico.i8cvs at tin.it> wrote:
> 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.
> 73" de
> i8CVS Domenico
> ----- 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?
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