[sdiy] Speed of electrons? (was mass extinction ofthedinosaurs)

[Magnus Danielson]

From: "John L Marshall" <john.l.marshall at gte.net>
Subject: Re: [sdiy] Speed of electrons? (was mass extinction ofthedinosaurs)
Date: Tue, 24 Jul 2001 22:09:21 -0700

> > >How did they fit cavity duplexers in such a small
> > >package?
> >
> > By not using cavity duplexers!
> >
> I was just humoring the RF guys & hamsters in the group. The thought of
> walking around with cavity duplexers is kinda funny.

Indeed, and just imagine the intense screwing on them as one changes
basestation? ;O)

> They probably use SAW filters. SAWS could have synthesizer application.

There is no question about it, there are a bunch of SAW filters in
there. They have good properties in size, weight, performance and
cost. How the share the antenna I don't know, but a circulator sounds
like one good way, but you can possibly skip that for messier solutions.

Cheers,
Magnus