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wrote:
> Round wire will work OK for the ground wire. They do recommend a flat strip
> but I'm fairly sure the difference is quite minor.
>
Time for a bit of math
1. RF only uses the surface of a conductor and is therefore dependent
only on the surface area of the conductor
2. The surface area of a unit length of wire is "pie" x D or 3.14 * wire
diameter
3. The surface area of a unit length of strap is (2x(width+thickness))
4. Assume that you use a 2 inch strap of 22 guage .. you can ignore the
contribution of the thickness but for a 1 inch length you have 2x2 or 4
square inches of surface area
5. To get 4 square inches of surface area with a wire of unit length you
need a wire with a diameter of D=4/3.14 or 1.27 inches ....
Now what guage wire would that be??
--
Brian Stewart
Pilgrim
Whitby 42 #304
VB8320 VA3PIL
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