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Re: [TowerTalk] another grounding reference MIL-HDBK-419A

To: towertalk@contesting.com
Subject: Re: [TowerTalk] another grounding reference MIL-HDBK-419A
From: Jim Lux <jimlux@earthlink.net>
Date: Thu, 12 Apr 2012 06:45:02 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 4/11/12 10:30 PM, Grant Saviers wrote:
> 812 pages of everything you might need to know, lots of clear
> explanations, many equations,&  implementation details.  (includes EMP
> protection)
>
> http://www.repeater-builder.com/antenna/pdf/mil-hdbk-419a.pdf
>
> Grant KZ1W
>

Yes..  and it has a nice set of graphs showing that inductance doesn't 
vary much with diameter of conductor.

However, I couldn't find the "no sharp bends" guideline in there in a 
quick read through, and I have most of the references it cites, and they 
don't have it either.

It also uses the "cone of protection" thing, and some people think the 
"rolling ball" is a better model, but that's a pretty fine point.

Being from the 80s, it also doesn't reflect the latest Electrical code 
stuff with respect to grounding and bonding, but, again, the differences 
are small.


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