John,
It is linear. You are right that the information exists, but is sometimes not readily available. A good place to look is the Weekly Satellite Report which AMSAT distributes. For many, but not all satellites, that information is just below the frequency information. For AO-51 we find:
Mode and Antenna Polarization:
V: Linear U: TX A (usually digital)LHCP TX B (usually analog) RHCP L: Linear S: Linear
Alan WA4SCA
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of jmfranke Sent: Tuesday, December 21, 2010 1:57 PM To: amsat-bb@amsat.org Subject: [amsat-bb] AO-51 S-Band antenna polarization
Does anyone know the polarization of the 2.4 GHz transmissions from AO-51. Are they circular? If so which polarity, RHCP or LHCP? Are they linear? If so is there a preferred receiving polarization? I have examined the AMSAT web site and many references on the Internet, but cannot seem to find the answer.
Thanks,
John WA4WDL AMSAT member 10211
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