Art wrote:
"What do you think you achieved with that posting that you snitched?"

I gave the book and the page number of an expert`s opinion that
reprocity usually rules with antennas.
Kraus says it again in the 3rd edition of "Antennas" on page 829:
"The transmitting and receiving patterns are the same."

"The power flow is the same either way."

Very plain talk.

Art doesn`t like my commentary. That`s his prerogative.

I`m not a typist so I avoid repeating where I can, but I try to be
accurate.

I believe there are nonreciprocal paths because I`ve seen one as I wrote
in my earlier posting.

I`ve measured hundreds of microwave paths using very accurate
instruments. Almost always they were completely reciprocal. I`ve seen as
many HF paths but rarely used anything beyond an "S" meter to measure
them. Not much point when the medium itself varies so much.You need
accuracy to prove a new antenna though. I`ve done that by comparison
weith a known standard. I switched between the antennas every 5 minutes
while continuously recording the distant signal strength. I then
averaged the results and compared them. The results were as predicted by
the calculations.

Best regards, Richard Harrison, KB5WZI