Greetings Jerry,
thank you for this (yes I meant AO-92).
If I understand, you are saying the the satellite uses a conventional linear antenna.
However AO-92 is easy enough to access that a 3db loss from the polarity mismatch b/t linear and circular is not significant.
Correct? Todd
Sent from my iPhone
On Mar 11, 2018, at 6:46 PM, Jerry Buxton n0jy@amsat.org wrote:
Todd,
Correct is not really a consideration, the way I see it. Will a CP antenna work? Yes. Polarization should not matter for AO-92. (BTW I presume you mean AO-92, not AO-91 in which case L band just flat won't work no matter the antenna, period.) :-)
I use RHCP because I built my antenna for AO-51 and that is was in use at the time. I believe that when CP is used on a satellite, at least in the AMSAT history, it has been RHCP most of the time so building for RHCP may have advantages for future satellites.
Jerry Buxton, NØJY