During the first year, or so, with AO-7, I used horizontal polarization with the 2-meter and 70-cm antennas elevated about 30-degrees. The 10-meter antenna was a 2-element yagi horizontally mounted. Only the azimuth was varied. Later I added an az-el rotor for the 2-meter and 70-cm antennas. However, the 30-degree elevation worked very well. Glen, K9STH Amsat 239/LM 463
Website: http://k9sth.com ________________________________ From: Bob- W7LRD <w7...@comcast.net> To: edroth2006 <edroth2...@sbcglobal.net> Cc: amsat-bb@amsat.org Sent: Tuesday, July 2, 2013 11:13 AM Subject: [amsat-bb] Re: AO-7 Antenna Polarization hello Ed...I have found that with AO-7 over the years...it depends... of what I am not sure..be it satellite orientation, local issues, or simply "propagation gods". There are times when switching between L & R on either up or down link will improve reception. My current installation is currently not wired for switching and defaults to RHCP for up and down. I do not appear to have any issues with AO-7, I do plan to connect up the switching simply because, it's there. From: "edroth2006" <edroth2...@sbcglobal.net> Can someone tell me what type and polarization the antennas are that are currently in use on the AO-7 satellite? I've done many searches and cannot find this information anywhere I have looked. _______________________________________________ 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
