If Galaxy 15's transponders are all of opposite polarities, then wouldn't the potential interference be cancelled-out by around -60dB due to the polarisation mis-match on both the uplink and downlink paths?
Auke ----- Original Message -----
From: [email protected] To: [email protected] Date: Wed, 26 May 2010 09:35:54 -0400 Subject: [amsat-bb] Re: 'Zombie-sat' and the clever orbital dance
On 25 May 2010 at 19:36, Greg D. wrote:
I wonder... Has anyone at SES considered just turning off their transmitter, while Galaxy-15 crosses their path, and using it instead?
G-15 and AMC-11 are opposite polarity, and most of the AMC-11 transponders are pretty wide, and the main carrier freq of each transponder is right at the null between the transponders on G-15. It should work on narrow signals that don't have carriers at the nulls, but I don't think it would work for most of the wide transponders.
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