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[TowerTalk] How do ferrite cores affect the length of a phasingline?

To: towertalk@contesting.com
Subject: [TowerTalk] How do ferrite cores affect the length of a phasingline?
From: David J Rodman MD <rodman@buffalo.edu>
Date: Fri, 17 Dec 2004 20:37:51 -0500
List-post: <mailto:towertalk@contesting.com>
Hi, I need to troubleshoot my 4Square. One of my dipoles probably has a bad feed point. I decided to replace the 4 W2DU current baluns with direct feed points and #43 material ferrite cores on the feed line. According to my calculations, I would need about another 1' of RG59 transmission line to correct for the loss of the balun. The question is does the 1 foot extra include the length of coax under the cores or does it exclude it???? Thanks.
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