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Re: [TowerTalk] 4 port network analyzers for balun measurements

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 4 port network analyzers for balun measurements
From: Michael Tope <W4EF@dellroy.com>
Date: Sat, 21 Nov 2015 09:47:50 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 11/21/2015 8:22 AM, Daniel Danny Horvat wrote:
Placing an "open" wound 2.4" toroid BALUN on/near a ground plane will
affect the real performance of that BALUN which is not the case with common
"enclosed" binocular BALUNS used in industry.

  Just my $0.02

Danny E73M


This is a good point. If the cores are sitting close to a ground plane will the small asymmetries between the conductors in bifilar turns and the ground plane be large enough to skew the results of a 4 port measurement toward a misleading conclusion about balun performance?

73, Mike W4EF..........
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