If you have but one chance to bury in the ditches and you're pressed for
time, go get some copper plumbing pipe. Brazing the joints would be best.
73,
Tony
At 09:57 AM 10/21/2003, Eric Scace K3NA wrote:
Hi Warren --
I would not bury braid for this application. Braid corrodes quickly
when exposed. As others have pointed out, corroded braid
develops a significant impedance at RF, which is not what one wants in a
grounding system.
You would be better off getting some lengths of copper flashing such
as that used for roofs or gutters. 2-3" wide flashing is
fine. This gives a very low impedance ground than solid large-diameter
copper wire, and is much less expensive.
Good luck with your project.
-- Eric K3NA
-----Original Message-----
From: WarrenWolff@aol.com [mailto:WarrenWolff@aol.com]
Sent: 2003 October 21 Tuesday 00:30
To: eric@k3na.org
Cc: WarrenWolff@aol.com
Subject: Re: [TowerTalk] Site Grounding
Hi Eric,
I tried to log back on to Tower Talk, but it seems I must have inserted
some strange character in my access info. Could not get in.
Not sure if I was successful in contacting the list administrator for help.
I am retiring at Lake Havasu City AZ in 2005; ground is notoriously poor
there despite what the Antenna Handbook says is "just
poor".
So, I thought as my neighbor was installing a 184 wall with a very deep
foundation and I am butting a 131 foot wall against his, I
could take advantage of these "long" ditches and place a long run
of grounding conductor in the bottom of the ditches. Then, it would be a
short run to either/both of my towers for lightning
protection. I would go ahead and run the multiple short
grounding/dissipators as typically recommended. I would also space some
copper rods along the run. There also
is a lot more lightning there than the handbook says, as well.
One person responded that braid was not a good move. So, I guess I have
more to learn yet. Want to get the most reliable routing
to ground for the lightning protection, first, and then for entire
station. I have printed a bunch of stuff from the Internet for
reading, too.
I am blessed to find that there are no tower height limits at the
lake. So I will achieve my dream of a big 40 m yagi plus some
nice multiband gadget on the other tower.
Thanks for your response to my posting.
Regards, Warren
_______________________________________________
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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_______________________________________________
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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