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Old November 6th 07, 04:18 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default question about wire antenna and tuner

Ian White GM3SEK wrote:
All valid solutions to the problem of AC/RF generators, transmission
lines and loads will most assuredly comply with the conservation of
energy!


That's a valid assumption since nothing can violate the
conservation of energy principle. But ignoring the
conservation of energy principle under the assumption
that the energy will take care of itself leaves one
ignorant of where the energy goes. If one doesn't know
where the energy goes, that's one's choice, but one
shouldn't turn around and present one's self as an expert
on the subject of where the energy goes. As someone said:
'I personally don't have a compulsion to understand where
this power "goes"', as if understanding might be an
undesirable thing.

But countless textbooks show that it isn't necessary to invoke
that principle in order to make a valid analysis.


It's obvious that you have never perceived the need to
know where the energy goes - that the energy will
automatically take care of itself - and that's perfectly
OK. I, OTOH, have spent considerable time and effort studying
and tracking the energy through the system in order to understand
how the energy balance is achieved and where the energy goes.
So which of us would tend to know more about where the
energy goes?

I have discovered that there is always exactly the amount
of energy in any transmission line needed to support the
measured forward and reflected power. It seems illogical
to me to argue that the energy is somewhere else besides
in the forward and reflected waves.
--
73, Cecil http://www.w5dxp.com