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Old March 27th 07, 12:40 AM posted to rec.radio.amateur.antenna
Dave Dave is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 797
Default Revisiting the Power Explanation


"Cecil Moore" wrote in message
.. .
Gene Fuller wrote:
There is *** no reflected power wave*** but there is a
*** reflected RF energy traveling wave*** , the power of which
can be measured at a fixed point. A Bird directional
wattmeter indirectly senses the *** reflected power*** at the
fixed location of the Bird.


It was late, but I did not think I was dreaming. You do indeed use energy
and power interchangeably and randomly.


I see you are still confused. Waves flow. Power doesn't
flow. Energy flows. Does your Bird wattmeter move while
it's indicating power or does it stand still while
indicating joules of energy passing a fixed point in
one second?
--
73, Cecil http://www.w5dxp.com


none of them flow. electrons move, this is called CURRENT. a current
causes a voltage which is related to it by an impedance. that is all you
need to know. power flow, energy flow, birds flying, those are all
secondary effects calculated from the fundamental elements of current,
impedance, and voltage. nothing else is necessary, everything else is
confusing since important details get lost when most people do calculations
of power or energy. stick with the basics and it will all become clear!