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Re: [TowerTalk] Help Needed for my First Tower --Coax Grounding

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Subject: Re: [TowerTalk] Help Needed for my First Tower --Coax Grounding
From: Pete Smith N4ZR <n4zr@contesting.com>
Date: Tue, 15 Oct 2013 16:14:03 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I have used stainless shim stock from McMaster-Carr to address this problem. The Andrew kits are nice if you can find them, but not cheap.

73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.

On 10/15/2013 8:27 AM, Wayne Willenberg wrote:
Hello.  I am making good progress on my new (and first) tower.

I am connecting my RF signals to the Yagis on my new tower using 7/8”
Andrew Heliax.  I would like to ground the top and bottom of the Heliax to
one of the galvanized legs of the tower.

I am concerned about putting 2 dissimilar metals together (i.e., the
corrugated shield of the Heliax and the galvanized steel leg of the tower).

What type of metal is used to make the outermost shield of Heliax?

And, do I need an intermediate metal (like stainless steel) between the
Heliax shield and the tower leg?

Thanks for your help.
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