[amsat-bb] Re: Elevation System

Mike Ryan mryan301 at comcast.net
Tue Jan 18 10:35:41 PST 2011

I agree on TV rotors. Its an excellent inexpensive way to get elevation. The U100/110 is what I use as well and its well suited because you can put the boom right through the rotor. 

There are some nice pictures of setups using these rotors on this sites:
http://www.rotorservice.com/press3-alliance.htm        <- my setup imitates this one ...
And there’s a QST article on this in the Dec 1998 issue 
You can even build a controller for computer control but I’m currently rotating elevation and azimuth manually. 

Message: 7
Date: Mon, 17 Jan 2011 16:52:35 -0800
From: "Greg D." <ko6th_greg at hotmail.com>
Subject: [amsat-bb] Re: Elevation System
To: <iz5iow at gmail.com>, <amsat-bb at amsat.org>
Message-ID: <BLU133-W194864A5AAEEF3C66FB766A9F70 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"

Hi Marco,

If you are looking to lash something together (instead of going with a purpose-built Elevation rotor), I and others have had success with Television-type rotors that have a through-hole for the mast.  Mounted on their side, they seem to perform very well.  Just keep things balanced, and protected from the weather and they should be happy.  

See:  http://home.wavecable.com/~ko6th/

I used an Alliance U-110.  It has performed flawlessly for about 10 years now.

Good luck,

Greg  KO6TH

> Date: Mon, 17 Jan 2011 12:59:23 +0100
> From: iz5iow at gmail.com
> To: amsat-bb at amsat.org
> Subject: [amsat-bb]  Elevation System
> Hello,
> I'm Marco, IZ5IOW. I'm searching a good and cheap solution to build an *
> elevation* system to set up an home satellite station. More specifically I'm
> looking suggestions for the mechanical part... The loading of the antenna is
> the follow: 15El UHF Yagi and 9 El VHF Yagi. The mechanical part should not
> bear too much weight!
> Can anyone help me?
> Thank you all. Best 73s.
> Marco
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