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Old April 11th 06, 05:03 AM posted to rec.radio.amateur.antenna
Cecil Moore
 
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Default Current across the antenna loading coil - from scratch

Tom Donaly wrote:
I've said it before and I'll say it again, there is no phase variable
in I1*cos(kx+wt) and there is no phase variable in I1*cos(kx-wt) so
there can't possibly be any phase information in 2*I1*cos(kx)*cos(wt).


Sorry, you are wrong about that. EZNEC reports that phase information.
Assuming the EZNEC default convention, the source is 1.0 amp at zero
degrees at t=0. So the RMS value of the traveling wave current is
1.0 amp at -'kx' degrees. -'kx' *IS* the phase angle of the current
up and down the wire referenced to the source. It is negative because
the source naturally leads the traveling wave.

Note 'kx' is how far the point of interest is away from the source
in degrees.

Doesn't anyone understand phasors anymore?
--
73, Cecil http://www.qsl.net/w5dxp