[TowerTalk] low band antenna without good ground

[Al Kozakiewicz]

Radiation resistance will not drop, nor would you want it to!  Ground losses will drop and so should the feedpoint impedance.

The lifetime of buried aluminum depends on the pH of the soil.  Usually, it isn't long.

Al
AB2ZY

-----Original Message-----
From: towertalk-bounces at contesting.com [mailto:towertalk-bounces at contesting.com] On Behalf Of Alex K2BB
Sent: Thursday, September 29, 2011 8:15 PM
To: Gene Smar
Cc: ROBERT HARMON; <towertalk at contesting.com>
Subject: Re: [TowerTalk] low band antenna without good ground

I got a roll of aluminum welding wire, the one which is 0.03"...
The plan is to lay down 30 radials 30-35 feet long to test how much radiation resistance drops. 
I am just wondering- how long that wire will last if I bury it? What about thicker wire used for electric fences?

AM

On Sep 29, 2011, at 19:39, "Gene Smar" <ersmar at verizon.net> wrote:

> Bob:
> 
>     Instead of a copper ground clamp (likely to cause corrosion at the 
> connection point due to dissimilar metals in contact in water), I'd 
> suggest using stainless steel bolts, lockwashers and nuts plus a pair 
> of fender washers (above and below the screen) wherever you wish to make a connection.
> Fender washers are exceptionally large in diameter as compared to 
> normal washer sizes for the particular diameter of bolt.  They gather 
> a lot of metal in the connection area when applied.
> 
> 
> 73 de
> Gene Smar  AD3F
> 
> 
> 
> 
> ----- Original Message -----
> From: "ROBERT HARMON" <k6uj at pacbell.net>
> To: <towertalk at contesting.com>
> Sent: Thursday, September 29, 2011 6:36 PM
> Subject: [TowerTalk] low band antenna without good ground
> 
> 
>> I have been  gathering up materials for rolling out galvanized 
>> chicken wire for a ground screen from my vertical as discussed here 
>> recently.  I'm trying to figure out how to make the electrical 
>> connection at the base of the vertical.  Is there a nifty way to do it ?
>> My first thought was to take the
>> very end of each roll and squeeze it together into a bunch and attach 
>> a cooper clamp used for ground rods.
>> How do you make your connection ?
>> 
>> Bob
>> K6UJ
>> 
>> 
>> 
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