[TowerTalk] Polyphaser question

[Dave D'Epagnier]

----------
From:  Dave D'Epagnier
Sent:  Tuesday, January 25, 2000 9:42 AM
To:  'Mike O'Brien'
Subject:  RE: [TowerTalk] Polyphaser question

Mike, don't worry about grounding the coax to the bottom of the tower. You
will essentially achieve the same level of protection by grounding it at the
entrance panel since (I assume) the entrance panel single point ground is
connected to the tower about 3' away. Also, I don't think the shield
isolated surge protector is necessary, but it won't hurt. If your single
point ground is a good one it shouldn't be needed.

Good luck

--Dave
K0QE

	----------
	From:  Mike O'Brien [SMTP:k0myw@worldnet.att.net]
<mailto:[SMTP:k0myw@worldnet.att.net]> 
	Sent:  Tuesday, January 25, 2000 9:26 AM
	To:  towertalk@contesting.com <mailto:towertalk@contesting.com> 
	Subject:  [TowerTalk] Polyphaser question


	I've privately queried a couple of knowledgeable folk with the
	following question but received no reply. Either it's a dumb
question
	not worth answering, or I've stumped 'em. Stubbornly, I'll now ask
the
	group...
	        I'm in the process of establishing a single-point grounding
	panel for a tower located only about three feet from the foundation
of
	my shack. I'd planned to use the usual variety of Polyphaser coax
	protector, such as the IS-B50HU-C0.
	        But I've noticed that Polyphaser also offers a variety that,
in
	addition to blocking surges on the center conductor, also is said to
	divert surges from the coax shield. The model I'm looking at is
	IS-IE50HU-C0.
	        I'm wondering if these fancier protectors would do away with
the
	need to ground the coax shield at the base of my tower only a couple
of
	feet away.
	        Yes, I realize these protectors are twice the cost of the
more
	familiar models. But the prospect of not having to hack into the
coax
	for shield-grounding purposes at the tower base is appealing.
	        Suggestions and opinions appreciated...

	        73, Mike, K0MYW

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