[amsat-bb] Re: Question for the antenna gurus

kc6uqh at cox.net kc6uqh at cox.net
Wed Mar 12 20:23:19 PDT 2014

As long as one is twice or more the frequency of the other it should work
fine. If you are using them as a feed for a dish the phase center of each
one must be considered for best focus.73,

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Gus
Sent: Wednesday, March 12, 2014 1:33 AM
To: AMSAT-BB at amsat.org
Subject: [amsat-bb] Question for the antenna gurus

Regarding axial-mode helix antennas, what happens if you build a helix for
each of two different bands (like 2M/70cm), and mount them concentrically,
on the same backplane?
Gus 8P6SM
The Easternmost Isle
Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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