Topband: Impedance of two wires to ground?

[Tree]

On Wed, Jan 14, 2009 at 02:03:53PM -0800, Michael James wrote:

> I'm looking for the formula to calculate the surge impedance of two wires parallel to the ground, given the diameter of the wires, the wire spacing, and height above ground.
> 
> I know I've seen the formula in a textbook in my library some years ago, but I'll be darned if I can find it.

Perhaps this might help:

http://www.sigcon.com/lib/htm/ROUND.htm

> I'm fairly new to the topband list, and I'm impressed. I don't see the usual bickering and personal attacks common elsewhere. If 160 meters is the "Gentleman's band", then this is the 'gentleman's list'.

Well - some of the more contentious issues have been resolved years ago.

Tree N6TR