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Re: Topband: radial wire size

To: Jorge Diez - CX6VM <cx6vm.jorge@gmail.com>, 'topband' <topband@contesting.com>
Subject: Re: Topband: radial wire size
From: Bill Wichers <billw@waveform.net>
Date: Wed, 15 Apr 2015 14:27:01 +0000
List-post: <topband@contesting.com">mailto:topband@contesting.com>
The only real difference when using reasonable-gauge sizes is in physical 
durability. Electrically it makes little difference since you effectively have 
a large number of radials in parallel so each one carries only a relatively 
small percentage of the overall current in the system.

I use 18 gauge bare solid copper on my radials. I use that size since I 
consider it a practical minimum in terms of physical durability and I can get 
it for around $50/thousand feet from my supplier (although they have a 5,000 
foot minimum order). I've had some 60+ radials in place for about 4-5 years 
without any problems. Once the copper turns a dull-brown color after the first 
season it's almost impossible to see on the ground.

A lot of people use 14 gauge since that's a commonly available size for 
building wire in the US. It's easy to get through "regular" (hardware store) 
channels and it's strong. There isn't really any electrical advantage to the 
heavier wire -- you won't notice any difference in performance.

I think you'll be fine with the #17 wire you have access to. Save the money on 
the smaller radial wire and spend it somewhere else where it will make more 
difference in your overall antenna system. 

   -Bill

> Hello
> 
> 
> 
> Thinking in a 4 SQ, buried radials, 60 or more on each vertical
> 
> 
> 
> What is the difference in performance between installing radial wire size
> #14 (2.08 mm2) or #17 (1.04 mm2) ?
> 
> 
> 
> #14 is the size that DXE sell, so I think is a good size for radials. But 
> what about
> #17?
> 
> 
> 
> In $$$ is the half J, so want to know what I am loosing in performance, if any
> 
> 
> 
> Thanks in advance
> 
> 
> 
> 73,
> 
> Jorge
> 
> CX6VM/CW5W
> 
> 
> 
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