Towertalk
[Top] [All Lists]

Re: [TowerTalk] grounding

To: <Cqtestk4xs@aol.com>, <TOWERTALK@contesting.com>
Subject: Re: [TowerTalk] grounding
From: "Tom Rauch" <w8ji@contesting.com>
Reply-to: Tom Rauch <w8ji@contesting.com>
Date: Sun, 9 Oct 2005 00:32:26 -0400
List-post: <mailto:towertalk@contesting.com>
> garyschafer@comcast.net writes:
> As far as Polyphaser protection devices go, you really
don't need them
> if you disconnect the lines from the equipment and ground
the shield and
> center conductor of the coax when not in use.
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~

K4XS replied:
> I wish that was true.  It is not.  Three years ago, before
I got the
> Polyphasers,  I had disconnected as you said.
Unfortunately the lightning traveled
> and jumped on to the Al-Foil aluminum insulation material
near the entrance box.

I don't disconnect at all. Too many cables.  I don't have
polyphasers or anything else except a couple MOV's on the
power mains. There are a few antenna relay switches that
open antennas when power is off.

I get lightning hits several times a year. I never get
computer, modem, or radio problems.

The trick is a single point entrance. Bulk head feed through
that grounds to the power line feed grounds. Everything to a
entrance plate. Everything at the desk to a single point.
Everything at the TV sets/stereos the same way. All
TV/radio/VCR clusters plug into  "WalMart protected outlet
strip, coax passes through it also.

Ground it correctly to a common point at each equipment
cluster. Ground the building entrance to a common connection
with power mains ground. That's the main part...
73 Tom

_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>