Jim Kelley wrote:
It seems that the phase shift you
described earlier would have to cause a change in the standing wave
pattern along the radiator.

It does and that is why it is so difficult to write an equation for
it. There are reflections in both directions at the top and bottom of
the coil in addition to the 100% reflection at the tip of the antenna.
My solution is to get Reg to write a new program. :-)

If the loading coil was at the feedpoint,
then the maximum current would appear only at the feedpoint.

I hesitate to introduce secondary effects before most have understood
the primary effects, but that is not a true statement. Some percentage
of what the other side is saying is true. However, the other side
considers those effects to be supreme when they are only secondary -
but they are NOT negligible secondary effects. The maximum current
in the base-loaded system does not appear at the feedpoint. The
maximum current in a base-loaded system appears inside the coil and
that current is of greater magnitude than the feedpoint current. I'm
sorry to muddy the waters even farther with that tidbit.
--
73, Cecil http://www.qsl.net/w5dxp


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