Does an outdoor TV antenna mounted on a regular 7 ft steel fence pole need
further grounding. (It works fine for local stations).
In other words, the steel pole is about a foot into the soil, and the
antenna is bolted to it. (There's also a guy wire for stability).
This should bleed builtup charges to the ground, right?
This should bleed a lightening strike to the ground, right?
If more grounding is needed, how should it be done?
If all it takes for an adequate lightning protection ground is a steel
pole a foot in the ground, why is everyone else using real ground rods?
I'm surprised a pole a foot in the ground can even support the
If it were my install, it would have a proper ground on the mast, as
well as a lightning arrestor with ground where the cable enters the
Lightening strikes are too big to bleed. If lightening did hit
something like that,I think it would melt into a puddle. :)
Your first qustion was on target, bleeding charges to the ground, or
call it, dispersing them to the ground. At any rate, it's too keep
something from attracting the lightening by being the opposite charge
(positive, I guess).
Otherwise the lightening rods on barns and houses would't work. They
are to thin and the wires going to them are too thin to carry even a
small lightening bolt.
That's what they say, at least. I don't really understand all of this.
Your pole is fine. But the problem would be the antenna elements,
which are insulated from the pole, right? Whether you are using cabel
or flat lead, there are lightening arrestors made for it, and I think
you need at least one, and maybe one at each end of the cable, the
mast and just before the house.
No matter what you do, in the unlikely event that lightning does strike the
pole/antenna it will likely be destroyed or severely damaged, along with the
cable and TV set. Good grounding and lightning arrestors do give some
protection from nearby strikes, which otherwise can be very damaging.
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