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Re: [TowerTalk] Can´t add egg insulator...

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Can´t add egg insulator...
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Sun, 13 Dec 2015 16:23:33 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On Sun,12/13/2015 1:39 PM, David Gilbert wrote:
Consider installing one or more large clamp-on ferrite cores.

Not quite. A single turn through a core is inductive at HF. This makes the guy wire electrically longer, but it does NOT act as a common mode choke. For that we need to wind enough turns to resonate the choke at the frequency(ies) of interest. And, of course, that choke won't take the stress of the guy, so you still need the egg insulator. :)

73, Jim K9YC


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