Richard Harrison wrote:

Keith wrote:
"Yes, indeed. But there is no power."

Keith`s perception is flawed. He is addressing r-f with a d-c mindset.
R-F power flow does not stop at an SWR zero-voltage point. Like "Old Man
River" it just keeps rolling along.

The zero-voltage point exists because the phase relationship between two
oppositely traveling waves is fixed, and the zero-volts point is where
the vectors cancel.

Using Keith's "logic", he would also be forced to assert that in a bright
ring-dark ring light interference pattern, the energy in the bright rings
is trapped between the dark rings and just sits there and circulates.
That's one reason why the field of optics is so far ahead of RF transmission
lines. Everyone in optics understands interference patterns which is exactly
what RF standing waves are.
--
73, Cecil http://www.qsl.net/w5dxp



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