Cecil, W5DXP wrote:
"Seems to me that Ae would be in square meters."

Cecil is wide awake. If you divide watts by watts per square meter, you
end up with square meters. Appropriate for for an aperture, and
dimensionally correct.

I must have been half asleep and typed something from the wrong line.
Kraus made no mistake. I did. I apologize.

Best regards, Richard Harrison, KB5WZI