wrote:
It is just that the
computation of Pfwd and Pref does not really produce real powers
(though, again unfortunately, the dimension of the quantity produced
is power).

Funny how they can heat resistors both at the load end and at the source
end when the source is equipped with a circulator+load.

Incidentally, I've come up with a proof that there are no reflections
at a voltage null in a homogeneous transmission line. Consider a 50
ohm lossless feedline. At a voltage null -

rho = (50-50)/(50+50) = 0 i.e. no reflections in either direction
--
73, Cecil http://www.qsl.net/w5dxp



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