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Old October 26th 07, 09:00 PM posted to rec.radio.amateur.antenna
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Default my SWR reading

Richard Harrison wrote:
Cecil, W5DXP wrote:
"Waves of power is just a semantic strawman designed to elicit an
emotional response."

It worked. I like the word power.


Richard, what would be the dimensions of flowing power?
Wouldn't power flowing past a point be watts/sec or
joules/sec/sec? Have you ever heard of such?

Wave energy flows. The power in the wave is measured at
a fixed point, i.e. the measurement point is NOT moving.

A Bird wattmeter is indirectly measuring the power in joules/sec
*at a fixed point* on the transmission line. The joules are flowing
past a fixed point but the joules/sec power exists at the
measurement point which is NOT moving.

Reflected energy is the energy flowing in the reflected wave.
Reflected power is a measure of that energy flowing past a
fixed point, i.e. the power itself is NOT moving.

"Waves of Average Power" is an oxymoron since waves move
and power doesn't. Be aware that "Waves of Average Power"
is an expression designed to sucker the unsuspected into
a losing argument.
--
73, Cecil http://www.w5dxp.com
 
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