[TowerTalk] inductance of tubing vs bar or strip

[Rick Karlquist]

Rick Karlquist wrote:
>
> I don't know how "free space" inductance is defined, but these
> numbers correspond to a characteristic impedance of 148 to 288 ohms,
> hardly free space.  A 1 inch wire 10 feet high over ground
> would have considerably less inductance, and it still isn't in free space.

Correction:  A 1 inch wire 10 feet high over ground would have
considerably MORE inductance...

Rick N6RK