"Brian" wrote in message
hlink.net...
Anyone here know of a formula or other manner in which to determine
the
impedance of a wire antenna, knowing it's length and height above
ground?


Brian



A good source for these formulas is the ARRL antenna book. The ARRL
radio amateur's handbook also has some antenna formulas, and is often
found in public libraries.

Here's a couple of radio amateur sites:

http://www.cebik.com/radio.html

Look for the "Practical Antenna Notes"

Reg Edwards has written some computer programs which greatly simplify
using some of the more complicated formulas. There are a few of them
for antennas:

http://www.btinternet.com/~g4fgq.regp/page3.html#S301"

But the effects of the antenna's impedance are far more important when
transmitting. As a practical matter, receivers work fine over a broad
range of impedances.

Frank Dresser