[HCARC] Vertical Antenna Radial System

[Gary and Arlene Johnson]

Can't find aluminum nuts and bolts - not even from Gibsons.  What's the old 
sayinng - If Gibsons doesn't carry it - you don't need it.

I wonder if aluminum pop rivets would do the trick, and once connected I 
wonder if spraying the whole shebang with something like truck undercoating 
or that stuff for gutters they advertise on TV would preserve the joints 
from water and weathering??

Gary J
N5"BAA"

----- Original Message ----- 
From: "Kerry Sandstrom" <kerryk5ks at hughes.net>
To: "Gary and Arlene Johnson" <qltfnish at omniglobal.net>; "HCARC Reflector" 
<HCARC at mailman.qth.net>
Sent: Thursday, October 11, 2012 6:01 PM
Subject: Re: [HCARC] Vertical Antenna Radial System


> Gary,
>
> If your using aluminum wire and an aluminum plate, I would look for some 
> aluminum nuts and bolts.  It is disimilar metals that is the issue.  If I 
> could do it all aluminum, that's what I would do.  An old Navy hand 
> probably heard about the Navy's battle against "rusty bolts" and corrosion 
> between disimilar metals on ship board.  We got the same problem.  When 
> you run RF through them, you generate all kinds of extra frequencies.  The 
> serious guys are even careful about the connectors they use, nickel I 
> think is particularly bad and fairly common.  I don't think we need to 
> worry about the connectors yet, but I would avoid dissimilar metals if I 
> could.
>
> By the way, be careful of the sheep droppings when you run your radials. 
> I've had some of mine eaten by cow pies!
>
> Kerry
>
>
>
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