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[TowerTalk] Radials questions

Subject: [TowerTalk] Radials questions
From: Peter Dougherty <>
Date: Sun, 23 Jul 2006 23:12:55 -0400
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Hi all,

Before too long I'll be starting to work on my low-band antennas this 
year, but I've got a somewhat complex situation that I could use some 
guidance on from the assembled braintrust.

I'm on about 1/3 of an acre in suburbia, with a somewhat 
heavily-treed lot in places and wild brush around one perimeter; the 
house is more or less centred on the lot, and my 70' crank up is 
right behind the house.

In one corner of the lot sits an 80 foot plus spruce up which I want 
to put up my inverted L for 160. In the opposite corner of the back 
yard is a clearing that I can put up a BiggIR vertical.

The question becomes what do I do with the radials? I haven't 
grounded the tower yet (boy, have those recent t-storms been FUN!), 
and the plan for *that* is three radials with 16-foot spaced 8' 
ground rods, each about 33' or so with #4 wire. Good so far. But how 
should I setup the two low-band radial fields, and how should their 
grounds tie into the tower's lightning ground safely and effectively? 
I'm having a real problems "seeing the big picture" here, especially 
with respect to lightning ground and RF ground for all these systems.

Thanks in advance.




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