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

[Pete Smith N4ZR]

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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