[TowerTalk] And now for something totaly different
Tue, 03 Nov 1998 06:43:27 -0800
How about renting it out for silage to a nearby farmer and taking the
money and buying a tower.
2nd. Demolish the tower and use the base for a TAALL!! tower Hi.
> > How do you turn an old concrete grain silo into a really useful vertical
> > antenna.?
> I'd rely on Mr. Faraday's expertise.
> Inside a metal cylinder, the electric field becomes zero. When the
> time-varying electric field is zero so is the time varying magnetic field.
> What that means is this. If you surround the silo with a cage of drop
> wires, whatever is inside that cage has no effect on the current on the
> outside of the cage, nothing but dead air inside the cage. If that cage of
> wires is insulated from the ground and the silo it surrounds, it will be
> easy to feed as a monopole.
> With four wires, they'd have to be held far out from the sides. The more
> wires the closer to the sides you could make the cage and still have it
> work. But after all that work, you'd still just wind up with a very fat 50
> foot vertical.
> > in ladders) and after a year of looking at it I can't figure away to
> > readily get to enough spots around the dome to hang a "cage" vertical
> > monopole off it using wires.
> Then you're stuck. If you can't get at least four or eight evenly spaced
> wires hanging off it, you might as well use it to hold up dipoles or plant
> a vertical on the dome. .
> 73 Tom
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