[TowerTalk] Site Grounding

[Mark Beckwith]

>You would be better off getting some lengths of
>copper flashing [snip] This gives a very low
>impedance ground than solid large-diameter copper wire, and is much less
expensive.

Does it make sense to bury some length of flashing instead of driving a rod,
then?  Is depth an

Mark, N5OT

----- Original Message ----- 
From: "Eric Scace K3NA" <eric at k3na.org>
To: <WarrenWolff at aol.com>; "Towertalk" <towertalk at contesting.com>
Sent: Tuesday, October 21, 2003 8:57 AM
Subject: RE: [TowerTalk] Site Grounding


> 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 at aol.com [mailto:WarrenWolff at aol.com]
> Sent: 2003 October 21 Tuesday 00:30
> To: eric at k3na.org
> Cc: WarrenWolff at 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
>
>
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>
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