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[TowerTalk] Variable phasing networks?

To: towertalk <>
Subject: [TowerTalk] Variable phasing networks?
From: Rob Frohne <>
Date: Wed, 21 Mar 2007 21:08:40 -0700
List-post: <>
Hi All,

You guys are giving me such good advice today, that I can't resist
another question.

I'm considering trying to phase a four element quad at 40 feet on one
tower with a four element 20 meter monoband yagi on another tower at 90
feet.  In order to do this, I need a variable delay line.  Is the best
way to do this using a set of coaxial delay lines whose lengths are
related to one another in a binary fashion, or are there other better
ways of doing this? 


Rob, KL7NA
Rob Frohne, Ph.D., P.E.
E.F. Cross School of Engineering
Walla Walla College
100 SW 4th Street
College Place, WA 99324
(509) 527-2075


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