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Old November 7th 04, 12:23 AM
Roy Lewallen
 
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Reg Edwards wrote:
. . .
Fact 3.

The radiation pattern of a short vertical is fixed and remains independent
of the location/height of the loading coil.


True for practical purposes. People using antenna modeling programs, or
people adept with analytical techniques, will find a small difference in
pattern as the loading coil is moved, due to the changed current
distribution. But it's an inconsequential difference.

Roy Lewallen, W7EL
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Old November 9th 04, 06:13 PM
Richard Harrison
 
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Steve Nosko wrote:
"Play with words if U like."

The whole phenomenon is not static. The incident and reflected waves
move. It is their interference patterns, the standing waves, which are
static.

Cecil wisely called them the rms values. I assumed it understood that
the RF (a-c) voltages and currents are expressed as their rms values
unless otherwise specified. Everyone should know that a-c is an acronym
for alternating current which, of course, alternates,

Best regards, Richard Harrison, KB5WZI

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