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 ... http://home.wavecable.com/~ko6th/ http://users.wbsnet.org/n0yk/cushcraft.htm 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.
Mike WB1AAT ---- Message: 7 Date: Mon, 17 Jan 2011 16:52:35 -0800 From: "Greg D." ko6th_greg@hotmail.com Subject: [amsat-bb] Re: Elevation System To: iz5iow@gmail.com, amsat-bb@amsat.org Message-ID: BLU133-W194864A5AAEEF3C66FB766A9F70@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@gmail.com To: amsat-bb@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 _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb