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[Antennaware] Quagi 20-10

To: antennaware@contesting.com
Subject: [Antennaware] Quagi 20-10
From: weinfurt <weinfurt@intelliwave.com>
Date: Thu, 10 Jul 2014 15:13:17 -0400
List-post: <antennaware@contesting.com">mailto:antennaware@contesting.com>
Hi all,
I have a 20-10 Quad, 2 element with 8' boom, at 50' that has worked well for me. Have had it about 5 years. Setting on my garage roof is a pair of directors (Dir 1 and Dir 2) for a 4 element Yagi tribander. I have thought of what it would take to set it up with the quad as reflector and driven elements and the 2 directors as added elements.

(A quagi is an antenna with quad horizontal polarization of reflector and driven element, with one or more yagi directors.)

I know a lot a things would change, resistance, spacing of elements, etc., and of course boom length. I have enough boom material to go to 28' total length. Wondering what the gain, swr, diretctivity, f/b would be and would it be worth the work to do it. I have seen them built for 2 meters, but a tribander on 20-15 and 10 would be unique, haven't seen that one yet!

I don't have any computer modeling software for antenna's and wondered if anyone would or could model such a set up that I am envisioning, in paragraph one. I have a machine shop in my garage and can weld aluminum, all kinds of antenna test equipment, etc.

Much appreciated,
73 de  NS8O
Greg Weinfurtner,
Albany, ohio




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