The radios certainly don’t have any isolation from this type of interference, so what you’re relying on is totally on the antennas - there’s not much FSL on these and I wouldn’t bet my life on a 2’ Category B to provide the kind of close-coupling loss needed on a co-located system. AT&T and MCI used to do it when they had completely back-to-back horns or ultra-high performance antennas but they provide about 80 dB of discrimination front-to-back.
Sent from my iPad > On Mar 13, 2020, at 8:31 PM, Colin Stanners <cstann...@gmail.com> wrote: > > > To my knowledge the radios and dishes have enough isolation that H/L match at > a site is not necessary unless you're almost pointing in the same direction > with those dishes (or have a TX frequency at one site overlapping a RX) . The > opposite polarity increases the isolation so you have even less worry in this > case. That H/L match idea is more of a tendency and to simplify planning than > a rule. > >> On Fri, Mar 13, 2020, 6:52 PM Ken Hohhof, <af...@kwisp.com> wrote: >> I am having some 11 GHz links coordinated and the draft PCNs they sent me >> have one site high on one link and low on the other link. They are however >> different sub bands, and one is HPOL and the other is VPOL. Does this make >> it OK? I could probably do one of the links in 18 GHz. >> >> >> >> I had internalized the idea that you never had high and low at the same site. >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com
-- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
