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 w7lrd@comcast.net To: edroth2006 edroth2006@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" edroth2006@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.