We are not concerned with the characteristic impedance of the wire
antenna. We are concerned with its RF impedance as an antenna, not a
piece of metal.

Resonance is defined as when the reactances neutralize each other, a
very frequency dependant characteristic give a fixed size conductor.

On Sat, 12 Jul 2003 20:39:45 GMT, Telamon
wrote:

Impedance is high except at resonance, where it lowers dramatically
(e.g. 500 Ohms to 50 Ohms).

You are confusing the wires intrinsic impedance to its reactance to some
specific frequency of signal energy. This is a common mistake.