Jim,
Two common sparkplugs, spaced about the same distance as the OWL, and
threaded into a grounded block, will provide adjustable spark gaps that can
be set to the desired breakdown needed to protect the OWL and still not arc
when transmitting.
73, Larry - W1GOR
----- Original Message -----
From: "Jim Jarvis" <jimjarvis@comcast.net>
To: <towertalk@contesting.com>; <chchandler@adelphia.net>
Sent: Friday, March 18, 2005 11:19 PM
Subject: [TowerTalk] (no subject)
> The older arrl handbooks showed lightning gaps for open wire line.
> They had opposing sets of points, wide enough apart not to arc
> under normal power...but close enough that ESD or lightning would
> arc to ground.
> You could run copper ground strap up the exterior of the house,
> and implement this at the point where the OWL goes to the balun.
> n2ea
> jimjarvis@ieee.org
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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