"Richard Harrison" bravely wrote to "All" (20 Dec 05 09:38:02)
--- on the heady topic of " Antenna reception theory"

RH From: (Richard Harrison)
RH Xref: core-easynews rec.radio.amateur.antenna:221565

RH Reg, G4FGQ wrote:
RH "Terman, Kraus, and Balanis and some computer programs are of no
RH help!"
RH My dictionary defines "field strength" as:
RH "3. The strength of radio waves at a distance from the transmitting
RH antenna, usually expressed in microvolts-per-meter. This is not the
RH same as the strength of a radio signal at the antenna terminals of the
RH receiver."

RH The definition looks OK to me. The reason the signal is not the same
RH as the microvolts-per-meter even when the antenna is a 1-meter length
RH of wire with just the right slant is because the induced voltage gets
RH divided between the antenna and its load (the receiver).


Not only that, but also this: the antenna rebroadcasts half of the
intercepted energy.

A*s*i*m*o*v