I mean in emergency situation, like in natural
disaster.
What the minimal tools I have to have to be able to
adjust the duplexer and how?
reza
--- Kris Kirby <[EMAIL PROTECTED]> wrote:
> On Thu, 22 Dec 2005, Reza PWW wrote:
> > Can anybody can advise me for tunning duplexer
> with minimum tools? For
> > example case: I have to change TX-RX frequensi in
> some place, where I
> > only have SWR and some HT and volt meter?
>
> A case of beer, an SWR meter, and a radio. Tune for
> minimum SWR. The case
> of beer is to insure accuracy -- largely because
> there isn't much. You're
> tuning for minimum insertion loss at that point
> (technically return loss).
>
> Really, you should find a friend with an IFR,
> communications analyzer, or
> spectrum analyzer with a tracking generator. To
> properly do the job, you
> need a dummy load on the unused port. Impedance
> mismatches can also do a
> job on cavity performance.
>
> --
> Kris Kirby, KE4AHR <[EMAIL PROTECTED]>
> "BIG BROTHER IS WATCHING
> YOU!"
> This message brought to you by the US Department of
> Homeland Security
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