[TowerTalk] SPG is a terrible term

[Tommy Alderman]

As an ex-engineer, I am not against change, but this suggestion is plain
silly for amateur radio. Every ham understands 'Single Point Ground' and/or
what it means. If you want to be the ham scientist or expurt or whatever,
then you should use your own egotistical CPRBP (or whatever) and us hams
will still use SPG. Thank you!

73,

Tom - W4BQF



-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of jimlux
Sent: Friday, June 18, 2010 8:33 AM
To: Towertalk Reflector
Subject: [TowerTalk] SPG is a terrible term

I think we should do away with the term "Single Point Ground"... it 
conjures up thoughts of ground rods, etc., and that's really not what 
it's all about..

I can't think of a good new term, but something like "Common Potential 
Reference Bonding point" is more accurate for what we're trying to 
accomplish.

And yes, that CPRBP (or whatever) should be bonded to the "earth ground" 
of the building, and most likely will also be bonded to the "Antenna 
system earth connection" (if only incidentally.... If all you have is a 
dipole, perhaps not)


It doesn't even need to be a "single point", although it is true that 
"star" bonding tends to be better than random, multiple interconnects. 
But if you have multiple shielded cables connecting multiple boxes, 
trying to arrange perfect "grounding trees" is pretty tricky.

Jim
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