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Old February 5th 04, 11:58 PM
Jim Kelley
 
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Cecil Moore wrote:

Jim Kelley wrote:
I don't think anyone believes that standing waves alternate in
direction.


The currents are referenced to the source. When the forward
current and reflected current are in phase at zero degrees,
they are at a maximum and flowing toward the load so their sum,
the net current, is flowing toward the load. 1/2 cycle later,
the forward current and reflected current are in phase at
180 degrees so their sum, the net current, is flowing toward
the source.


So, now try to align that point of view with the fact that standing
waves are stationary - that current flows equally in both directions.
Combine it with the fact that there isn't a net flow of current into an
antenna. As many electrons flow "out" as flow back "in" to it.

You need to think more carefully about what a standing wave is.


You need to understand that AC current flows one direction for 1/2
cycle and the opposite direction for the other 1/2 cycle.


You need to run a diagnostic on that "logic analyzer" of yours. ;-)
It's giving you some bad readings on the available data.

Current
cannot stand still.


Profound. Note that I made no claim to the contrary.

Standing current waves
are AC and neither DC nor AC current can stand still.


Did you understand anything I wrote? You seem to be grappling with some
pretty sophomoric notions here, Cecil.

It's not a matter of current flow into or current flow out of; for a
standing wave plot it's a matter of the magnitude of current flowing
*AT* the specific positions.


Current cannot flow "at" a specific position, Jim.


:-) The plot you made on your web page shows the current flow *AT*
every position along two 1/4 wave radiators.

Like I said, the seduction by your math models is worse than I
thought.


Rainman always says he's an excellent driver. You're like him in some
ways, Cecil.

73, Jim AC6XG


 
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