[TowerTalk] Which grounding panel material?

[Keith Dutson]

I use and recommend 6061-T6 aluminum plate.  Mine has been installed since
1999 and has presented no problems to date.  Here is a view from inside the
shack:

http://www.dutson.net/transfer/HamRadio/bulkhead.jpg

The 1.5 inch copper braid ground strap has been replaced with 3 inch copper
strap.  Here is another view, from outside:

http://www.dutson.net/Ham/P6060005.jpg

Keith NM5G

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Tonno Vahk
Sent: Wednesday, March 30, 2005 1:50 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Which grounding panel material?

Hi,

I am refurbishing my shack and want to place a grounding panel into the wall
and to bring all my antennas into the shack through it with bulkhead
adaptors. Just want some advice.

1. Is copper plate (say a 1cm, 1/3 inch thick) the best choice (say vs
aluminium)? I would drill holes into it for bulkheads.

2. Should I worry about the lightening setting my house in fire when the
plate is having direct connection with the wooden walls? We don't get so
much serious lightening actually and I am not intending to use the
polyphasers instead of bulkheads as well...

3. Does a large 10 square feet copper panel need extra warmth insulation in
winter, will it cool the house completely down in -20c otherwise?

4. Will the copper plate handle the weather fine and last long?

thanks for any insights,

73
tonno
es5tv


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