[TowerTalk] Radials

Jim Lux jimlux at earthlink.net
Tue Feb 13 00:24:52 EST 2007

At 03:04 PM 2/12/2007, Tom McAlee wrote:
>As others have pointed out, if you're concerned with the current carrying
>capabilities #26 is fine especially if you have 60 of them.  But, don't
>neglect to consider the physical aspects.
>I have 40,000' of #16 stranded insulated wire under my 2 element 80m array.
>I have an occasional need to drive a crane, bucket truck, excavator, or
>large tractor around the yard.  For the most part, #16 holds up well outside
>of an occasional glitch that even #2 wouldn't hold up to ;)  (I've had some
>bad glitches!)
>I'm not sure how well #26 would take the same abuse.  Those vehicles with
>tracks instead of tires can make a fine mess of everything when turning.


However, once you've got all those wires laid into the soil, some 
breaks don't actually change the RF properties very much.  What 
you're really doing is effectively improving the soil conductivity 
(especially for currents flowing in a radial direction), more than 
creating an independent ground screen.  Mind you, dragging a big 
multi-gang plow across the radial field is probably not the best idea.

Jim, W6RMK 

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