Duplexer are bi-directional. Essentially passive bandpass filters--don't care which way he RF flows.
--- On Sun, 10/11/09, Tim Goodrich <t...@timgoodrich.net> wrote: > From: Tim Goodrich <t...@timgoodrich.net> > Subject: [amsat-bb] accidental RF into wrong cable of Arrow=bad duplexer? > To: amsat-bb@amsat.org > Date: Sunday, October 11, 2009, 3:51 PM > I am an owner of a 2m/70cm LEO > satellite antenna with duplexer in the > handle. Sometimes, I operate full duplex (two radios) and > bypass the > duplexer by attaching my own cables to the separate parts > of the antenna (1 > radio for 2m, 1 radio for 70cm). In the course of rushing > to catch a > satellite pass, I mixed up my connections and accidentally > transmitted (5 > watts) into one of the arrow antenna cables, causing RF to > feed backwards > into the duplexer. > > > > Recently, I have noticed decreased performance (poor > reception, lower S/N, > even on AO-51 when in the past it was full quieting) and am > trying to > ascertain if it could have anything to do with my mistake > of feeding RF in > the wrong direction into the duplexer. Could my mistake > cause this problem? > > > > Thanks, > > Tim > > KI6VBY > > > > > > _______________________________________________ > Sent via amsat...@amsat.org. > Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur > satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
