[amsat-bb] Filter out 3rd harmonic of 145MHz

jerry.tuyls at telenet.be jerry.tuyls at telenet.be
Mon Mar 27 14:36:03 UTC 2017

As mentioned, you can use a commercial diplexer, or split it by making yourself a lpf for 2m
and a hpf for 70cm,easy and cheap.



----- Oorspronkelijk bericht -----
Van: "Paul Baldock" <pbaldock at frontier.com>
Aan: "amsat-bb" <amsat-bb at amsat.org>
Verzonden: Zondag 26 maart 2017 20:58:58
Onderwerp: [amsat-bb] Filter out 3rd harmonic of 145MHz

I'm looking for a filter suggestion to reduce the third harmonic (435 
MHz) of my 145MHz 100W signal. How much attenuation would I get from 
a simple 435MHz quarter wave stub?


- Paul KW7Y

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