I dug out some old books including OSCAR: The Ham Radio Satellites by Dave Ingram, K4TWJ, and OSCAR Amateur Radio Satellites by Stratis Caramanolis, and the AMSAT Journal from December 1974. All three agree that in the Northern Hemisphere, AO-7 polarizations are as follows:

Mode B uplink and downlink RHCP Mode A uplink LHCP Mode A downlink linear 435.1 beacon LHCP

The turnstile is shared on both 2m and 70cm.

I hope this clears things up some.

73, Drew KO4MA AMSAT VP Operations

-----Original Message-----

From: edroth2006 edroth2006@sbcglobal.net Sent: Jul 2, 2013 12:38 AM To: amsat-bb@amsat.org Subject: [amsat-bb] AO-7 Antenna Polarization

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. Thanks and 73, Ed, K0NW _______________________________________________ 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