[amsat-bb] AO-91 and circular polarization?

[Todd Deckard]

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 at 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