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

[Alan NV8A]

For BuryFlex I used the PolyPhaser grounding kits, which I bought from 
DX Engineering. They have three different kits; pick the one that suits 
the metals at each end: copper/brass to copper/brass, copper/brass to 
aluminum/tinned/galvanized, or aluminum/tinned/galvanized to 
aluminum/tinned/galvanized. Handle up to 2 1/8" diameter. Not cheap.

73

Alan NV8A


On 10/15/13 08:27 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?