David wrote:
The feedpoint impedance of an antenna is usually 50 or 75 ohms.
The feedpoint impedance of a resonant standing wave
antenna is a result of interference/superposition and
is a virtual impedance equal to
(Vfor-Vref)/(Ifor+Iref)
The characteristic impedance of a standing wave antenna
is actually several hundred ohms.
--
73, Cecil
http://www.w5dxp.com