That's why I asked the question if anyone had used Chem Rod before. I am still
interested in knowing of successful installations for my type of soil. The
system uses hollow rods you drive down into the rocky soil (using a long rock
drill bit). You then pour chemicals inside the rod. The chemicals seep into
the subsurface and lower the impedance. One of the calculations I was looking
at can drop impedance from 300 down to 5 ohms with using only 4 of these rods.
(Assumes rocky soil, but impedance testing would be best to assure that is the
right scenario). If this works, it is exactly what I need to do to put my
tower up. It will be the tallest structure within 10 mile radius of the QTH,
thus I am assuming the worst case for lightning protection.
----- Original Message -----
From: "GALE STEWARD" <firstname.lastname@example.org>
To: "towertalk reflector" <email@example.com>
Sent: Monday, May 03, 2004 6:35 AM
Subject: Re: [TowerTalk] Ground Rods
> Makes me wonder how the ground systems are installed
> on the microwave towers, and even the Forest Service
> fire towers. The ones I've seen all seem to be high on
> a very rocky ridge or mountain top. I'm sure they take
> a lot of lightning hits. Anyone have any info?
> 73, Stew K3ND
> --- K8fu@aol.com wrote:
> > One caveat that I guess was not picked up from
> > earlier postings is that the
> > Frog here lives on top of an extremely rocky ridge.
> > When they came out to drill
> > the well the driller broke 3 bits before
> > reaching150'. That's why I was
> > curious as to whether there was any type of pwr
> > equip available for rental, and if
> > I could drive a sharpened piece of angle iron as a
> > guide hole.
> > Froggy K8FU
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> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
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