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[Towertalk] Preventing parasitic action of steel guy cables

To: <towertalk@contesting.com>
Subject: [Towertalk] Preventing parasitic action of steel guy cables
From: ccc@space.mit.edu (Chuck Counselman)
Date: Fri, 13 Dec 2002 11:54:47 -0500
At 8:36 AM -0800 12/13/02, Richard Karlquist wrote (in response to):
>  > Assemble groups of split ferrite beads and slip them over the guys,
>>  positioning them every few feet to choke off RF currents.
>
>>  If it works on coax, shouldn't this also work on guy
>  > cables?...
>
>
>I thought of that a long time ago, but I've
>never modeled it.  However, your premise
>that "it works with coax" is somewhat
>questionable.  It doesn't work all that
>well with coax and you need a boatload
>of ferrite cores.  You would need to determine
>how many cores per foot are needed and
>what they cost.  I think you might find
>it is not cost effective.


I agree with Richard.  See my previous Towertalk posts in which I 
provided quantitative data.  (Search the archive for "ferrite.")

-Chuck, W1HIS



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