But what the OP asked about was a multi-coupler, not a tower top amplifier.
WalterH --- In [email protected], John Sehring <wb...@...> wrote: > > Let's never forget that ANY loss between the antenna and the receiver will > degrade the rx's noise figure.� That means feedline, duplexer, cavities, > connectors, Polyphasers, etc. > > Noise figure degradation means less sensitivity, period.� There's no way to > make up for that EXCEPT with a preamp at the antenna.� If that preamp's > gain just equals the losses downstream from it, you've got a wash.� > However, you will lose on strong signal performance, IM, 3rd order intercept, > etc., i.e. the preamp may be prone to overload by strong sigs. depending on > its design. > > --John > > > --- On Fri, 8/21/09, ka1jfy <walter.howard...@...> wrote: > >Long SNIP>
