Jim Kelley wrote:

Tam/WB2TT wrote:
Seems to me that once you
have put all the energy into the TL that it can store, you don't have to
supply any more energy (?)

BINGO!! No more _energy_ flows - until or unless something changes.
(TV signals are of course always changing.)

You can prove your point only by demonstrating an RF storage
battery in which RF energy stands still.

Got news for you, Jim. RF energy *always* flows because it *cannot*
stand still. It flows in one direction in a transmission line, at the
speed of light, until it encounters a physical impedance discontinuity
at which point reflections occur and some or all of the energy changes
directions, but always moving at the speed of light. ExH is the power.

Of course, you are talking about *NET* energy above. Forward
and reflected energy continue to flow unabated. RF component
energy has no choice except to flow at the speed of light. If
there doesn't exist a match point to turn the reflected energy
around, it *will* flow into the source. That you subtract the
reflected energy from the forward energy at the source output
to obtain the "generated energy", is just a math shortcut and
bears no resemblance to reality. It is a definition created by
man for the purpose of avoiding a very complicated problem.

It is akin to the problem of absolute motion in space-time.

It follows that when you have the same bank balance at the beginning
of the month and the end of the month, you tell everyone that you
had no debits or credits during that month. Again, you forgot to use
the word "NET".
--
73, Cecil http://www.qsl.net/w5dxp