[amsat-bb] Re: Diplexer
Nigel Gunn G8IFF/W8IFF
nigel at ngunn.net
Sat Apr 9 08:46:10 PDT 2011
I'm pretty certain you're going to be looking at something custom made.
At qrp powers it might not be a problem to DIY a set of filters but with needing over 100dB of isolation between each
band it sounds expensive.
On 09-Apr-11 15:28, Floyd Rodgers wrote:
> Well, I do not actually need ports for 220 and 900 "currently". I have
> been looking at doing this for some time.
> My current plan is to use stacked or series du/diplexors for the bands I
> want to play (<30MHz, 50, 145, 430). Upper power limit is 500w pep which
> makes it a little easier. If I pass the power limit, there is not much
> question I must run separate feed lines. Adding 1296 and 2.4g also means
> separate lines. (The entry panel to the shack is beginning to resemble a
> cell tower entry panel since I have two towers fed from one panel. One
> tower is hf/terrestrial<30-1296 stuff. The other is satellite
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Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF 9H3GN), e-mail nigel at ngunn.net www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN, EAA382.
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