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Topband: single wire Dielectric covering.

To: "Roger Parsons" <ve3zi@yahoo.com>, <topband@contesting.com>
Subject: Topband: single wire Dielectric covering.
From: "Bruce" <k1fz@myfairpoint.net>
Date: Sun, 30 Dec 2012 20:34:27 -0800
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Dielectrics affects/increases capacitance.

Question: Has anyone made a study as to how it lowers the frequency of the wire that it is covering?.
My thought.... It is probably is a linear capacitance along the wire itself.

73
Bruce-K1FZ
www.qsl.net/k1fz/beveragenotes.html



It is well established that covering a cable with a dielectric will change its electrical length. The late LB Cebik's site (which is still accessible) quantifies exactly how much with different dielectrics. It can range up to about 7 %, and in my experience LB's figures are spot on.
73 Roger
VE3ZI
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Stew Perry Topband Distance Challenge coming on December 29th.

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Stew Perry Topband Distance Challenge coming on December 29th.

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