okay Gary, i'm going to be the stupid one and say that there seems to be
contradictions in what you advise.
let's say i have my service entrance, its ground rod and panels, on one end
of the basement. the feedline bulkhead is on the other side of the
basement. it sounds like you are advising that i run a shack service
circuit across the basement and ground it to the feedline bulkhead which is
bonded to the shack cabinets and a rod or rods outside. The circuit, 60A
let's say, would branch out to outlet boxes. this does not sound like a
SPG in the conventional sense I've been led understand. it might be okay
with a large copper strap below grade outside connecting the service panel
ground rod and running all the way around to the feed bulkhead rod.
otherwise it sounds like a double point ground. i have always been told
that you MUST have everything--satellite, cable, tv antennas, phone, AC
service, antenna feedlines, and in-laws coming in at the exact same grounded
location so everything will be colocated and rise to the same potential.
tnx for ur patience
rob/k5uj
From: Gary Schafer <garyschafer@comcast.net>
Reply-To: garyschafer@comcast.net
To: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
CC: towertalk@contesting.com
Subject: Re: [TowerTalk] grounding
Date: Sun, 09 Oct 2005 12:16:48 -0400
Rob Atkinson, K5UJ wrote:
>i'll try this again. my computer went nuts in the middle of writing this
>before, and i had to reboot it.
>
>Gary, let me make sure i understand this:
>
><<<For example, it is not necessary to have the mains power coming in the
>same place as the coax lines. Just run a power line from a convenient place
>over the where you have your antenna entrance panel. Put your power line
>protectors there. Now run ALL your shack equipment from that one power
>point.>>>
>
>do you mean run a shack service line around outside from where the drop and
>kwh meter are, to where the feedlines enter?
>
>rob/k5uj
>
Hi Rob,
Run it anywhere that you have access. It doesn't need to be outside.
The point is that you do your grounding and power protection at the entrance
panel for your antennas. The cable entrance panel is your single point
ground. You have no other path to your equipment but through that panel.
Now an extensive ground system hooked to that panel would be ideal.
73
Gary K4FMX
_________________________________________________________________
On the road to retirement? Check out MSN Life Events for advice on how to
get there! http://lifeevents.msn.com/category.aspx?cid=Retirement
_______________________________________________
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
|