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Re: [TowerTalk] Ground resistance

To: Keith Dutson <kdutson@sbcglobal.net>
Subject: Re: [TowerTalk] Ground resistance
From: Roger D Johnson <n1rj@adelphia.net>
Date: Thu, 08 Jun 2006 17:09:11 -0400
List-post: <mailto:towertalk@contesting.com>
Keith Dutson wrote:
>> The most dirty words in lightning protection are LONG and INDUCTANCE. More
> copper plates solve nothing except acting as a place to bond all the antenna
> ground connections together, and those connections are only effective if
> they are very short.
> 
> These should always be used together when discussing lightning protection.
> Short is of course relative to the inductance generated at about 1MHz.  A
> thin wire 3 feet long may be worse than a 3 inch copper strap 50 feet long.
> 
> Above all, NEVER assume that a well-engineered ground system will prevent
> lightning damage.  Get some good insurance to protect your home and
> equipment against that rare direct hit.
> 
> 73, Keith NM5G

That reminds me of when NY1E and I were touring KC1XX's contest station.
Dick asked Matt what he did about lightning protection. Matt's response,
"State Farm"!

73, Roger


-- 
Remember the USS Liberty (AGTR-5)
http://ussliberty.org/
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