Dave wrote:
admit it cecil,
while you may be correct, using a different set of terminology than most of
the people in here has done nothing but add to the confusion factor in many
of this long drawn out threads.

I have a limited technical library. I wish my RF references spelled out
everything as well as "Optics", by Hecht, but mine don't. Light and RF
are the same kind of EM waves, just at different frequencies. Hecht's
material is certainly relevant to RF waves. And I make every effort to
translate the technical jargon from one field to the other as best I
know how.

Hecht presents the best treatment of superposition, interference,
and standing waves that I have ever seen. I wish I had an RF
reference book as well written as "Optics".
--
73, Cecil http://www.qsl.net/w5dxp