Anyone interested in lightning protection needs to
go to my website: www.erols.com/n3rr
and check out the link Lightning Protection Subsystem.
Much of what's been/being discussed here lately is answered/demonstrated
on my website.
73,
Bill, N3RR
----- Original Message -----
From: "Mark Beckwith" <swca@swbell.net>
To: <towertalk@contesting.com>
Sent: Wednesday, May 15, 2002 12:11 PM
Subject: Re: [Towertalk] Lightning Protection
> Question to the experts. I read this from Gene:
>
> >I already have the three coax
> >shields grounded just before they hit the suppressors out at the tower.
> >(I'd rather keep the lightning in my back yard away from the house than
> >conduct it closer to the shack before it's shunted by the suppressors.)
>
> and wondered:
>
> Let's say I DO put my Polyphasers at the tower bases. My coax runs are
> between 87 and 200 feet from there to the shack, above ground. Isn't
there
> a chance lightning energy can still get on the coax after the Polyphasers?
> Is that why Gene went on to do the following:
>
> >I also have the shields grounded at a SPG plate
> >in a steel box just outside the shack window.
>
> ?
>
> Uh, what's a SPG plate? Wouldn't that still leave your radios exposed to
> the energy? I have the chance to do this right, because I'm building
> completely from scratch. If I can't afford to to it right, I can at least
> afford to remember to disconnect everything all the time.
>
> What about alternatives when you have something like 16 or more incoming
> feedlines?
>
> Mark, N5OT
>
>
>
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
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