Cecil Moore wrote:

"Powers, treated as scalars, are incapable of
interference."

And when powers sic are not treated as scalers, then sometimes it's
ok to use power in interference equations, but other times it's not -
pretty much just depending on whether or not you get the answer you
want. And sometimes you have to either add or subtract the amount of
power that isn't somewhere else, or else average with zero in order to
get the right answer.

All this and more, this week on r.r.a.a.

:-)

AC6XG