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Re: [TowerTalk] Vertical Lightning Protection

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Vertical Lightning Protection
From: "Dan Zimmerman N3OX" <n3ox@n3ox.net>
Date: Tue, 19 Jun 2007 15:04:14 -0400
List-post: <mailto:towertalk@contesting.com>
"What I would like to find out is the preferred method of lightning
protection (that is, shunting it to ground).  There seem to be two methods:
a spark gap, and a shunt coil"

For what it's worth, if you make the vertical a tad short, you can use
the shunt coil to match up to 50 ohms.

Hardly necessary to have SWR perfection, but it's so easy to do.

If you use a shunt coil this is probably the way to do it.    I
wouldn't want to let the voltage get high enough from static buildup
to fire a spark gap.


Dan
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