[amsat-bb] [Bulk] Re: G-5500 Rotor issue

[J Bennett]

Mine appears to a bad connection on the tower.  When I rotate to the east,
the elevation meter jumps.  When I rotate back to the west the elevation
returns to normal.  Now I have to find the time to tilt the tower over and
repair it.


-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Greg
Sent: Monday, October 20, 2014 11:28 AM
To: amsat-bb at amsat.org
Subject: [Bulk] Re: [amsat-bb] G-5500 Rotor issue

Thanks all that replied.

Yes, it was the elevation rotor pot.  Just have to get it back up on the
mast since tests in the shack now look good.

73
Greg
N3MVF
On Oct 18, 2014, at 8:23 AM, Gregory Beat <w9gb at icloud.com> wrote:

Yaesu G-5500 Operating Manual
http://www.yaesu.com/downloadFile.cfm?FileID=994&FileCatID=155&FileName=G%2D
5500%20Operating%20Manual.pdf&FileContentType=application%2Fpdf

How Things Work.
TURN to Page 9, schematic diagram

Meters M1 and M2 are analog meters in the Control Box.

Potentiometers VR5 and VR6, located INSIDE the outside rotator and geared to
motor movement, changes resistance -- which is measured and reported on the
meters M1 and M2.

Dirty or failing potentiometers are common, and required maintenance with
heavily used antenna rotators.

w9gb

Sent from iPad Air
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