[amsat-bb] Re: Adjusting true north for azimuth rotator.

Dee morsesat at optonline.net
Sun Sep 4 08:14:24 PDT 2011

Another aspect to consider....  Do you want the center to be pointing
North or South???  Sometimes I find that when a satellite passes to
the south, my array has to turn around 360 degrees to continue to
track.   This is a personal choice....
73, NB2F

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org]
On Behalf Of John Wright
Sent: Sunday, September 04, 2011 9:10 AM
To: amsat-bb at amsat.org
Subject: [amsat-bb] Re: Adjusting true north for azimuth rotator.

At 21:42 03/09/2011, you wrote:
>I am planning to install my G5400 rotator inside a tower having a 
>welded rotator shelf. The tower is not installed yet and will have 
>one face against the side of my house which is positioned about 28 
>degrees northeast (Per Google Earth).
>I assume when I drill the rotator shelf, I can adjust for the gross 
>28 degree offset of the tower. However how important is it to do 
>this at all? Does the rotator have to be installed exactly toward 
>true north or can I make up the difference when clamping down the 
>antenna mast assuming the antenna is oriented true north?  Note I 
>will be using a Trakbox and need the ADC to center on true north.

Surely it matters not how the rotator is mount, you just clamp MAST 
so that the antenna are north pointing, the orientation of the 
physical rotator is unimportant. 

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