Definitions:
Circulator - ferrite device with 3 ports.
Isolator - Circulator with a load on the 3rd port.
Intermod panel - Isolator with a harmonic filter. The harmonic filter may
consist of a 2nd harmonic notch filter or a low pass filter or a band pass
cavity.
73
Gary K4FMX
> -Origi
Paul;
In general all of the Intermod panels I have seen have a
bandpass filter too...not just an isolator.
As for before or after.. It needs to be on the antenna side of the PA
to do it's job..
Intermod panels are about suppressing any regenerated energy from
others... which are anten
Paul,
Go to the EMR web site and read one of Bill Sr tech notes. You will find it
very interesting. Here is a link for you go directly to the web page.
http://www.emrcorp.com/techinfo/1/pdf/rf_isolators(1-14).pdf
Mike
Mike Mullarkey K7PFJ
From: Repeater-Builder@yahoogroups.com
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