> -----Original Message-----
> From: firstname.lastname@example.org [mailto:towertalk-
> email@example.com] On Behalf Of Bill Turner
> Sent: Thursday, September 13, 2007 11:11 AM
> To: W0UN -- John Brosnahan
> Cc: firstname.lastname@example.org
> Subject: Re: [TowerTalk] SPG & Service Entrance Grounds.
> ORIGINAL MESSAGE:
> On Wed, 12 Sep 2007 23:41:25 -0500, W0UN -- John Brosnahan
> <email@example.com> wrote:
> >Note that the word is NOT single-ground -- meaning only one ground. It
> >SINGLE-POINT ground meaning that all the equipment IN THAT SYSTEM is
> >tied to a single grounding point. Other systems -- such as a tower
> >with control circuitry at the tower could have its own single point
> >that is separate from the single point ground in the shack.
> ------------ REPLY FOLLOWS ------------
> if you were to call it a "Single Point House Ground" or a "Single
> Point Tower Ground" or a "Single Point AC Mains Ground" there would be
> no argument.
> But the discussion here has been looking at the tower/house/AC mains
> as a single system. In that context, having two or more grounds and
> calling ONE of them a "Single Point Ground" with no other qualifiers
> defies common sense.
> Common sense has been defied before and you are welcome to continue
> the tradition if you wish. :-)
> Bill W6WRT
I still maintain that the problem is that most do not know what a "single
point ground system" is. As I said before it describes how the equipment is
grounded and all of the lines going to and from the equipment.
It is ONE PHYSICAL (single) place. If all of the equipment lines do not
first connect to the single point ground panel and the equipment fed from
only that panel then a single point ground system does not exist. Period,
People are trying to call too many variations a single point ground when it
is not. If you adhere to the above definition there should be no confusion.
TowerTalk mailing list