About 20 years ago I decided to do something about lightning protection.
My tower is 80 feet of Rohn 45G, with a 5el Telrex monoband 20 meter yagi at 82
feet.
Hygain 153BAS at 90 feet and Hygain 103BAS at 100 feet. I have a homemade
antenna
switch box near the top.
I shunt feed the tower
A low impedance tower ground is important. Google TOWER FOOTING RESISTANCE
for an IEEE ppt. on this. I would aim for a couple of ohms. That means
several long rods.
Dave WX7G
On Jul 27, 2012 9:06 AM, HAROLD SMITH JR w0ri...@sbcglobal.net wrote:
About 20 years ago I decided to do something about
A low impedance tower ground is important. Google TOWER FOOTING RESISTANCE
for an IEEE ppt. on this. I would aim for a couple of ohms. That means
several long rods.
Dave WX7G
Dave,
Of course a low impedance ground is important.
I have a ground field with 6 - 10ft 3/4 inch schedule 80
over with a front end loader bucket.
Carl
KM1H
- Original Message -
From: DAVID CUTHBERT telegraph...@gmail.com
To: HAROLD SMITH JR w0ri...@sbcglobal.net
Cc: topband@contesting.com
Sent: Friday, July 27, 2012 11:36 AM
Subject: Re: Topband: Lightning protection
A low impedance tower
