Gene Fuller wrote:

Cecil,
Until you try to understand the difference between current in a
conductor and power radiated into space, this is a hopeless debate.

Isn't there a direct correlation between current in a radiator and
power radiated into space? Assuming the conservation of energy
principle holds, power radiated into space reduces the current
in a radiator (since the ratio of the forward voltage in a radiator
and the forward current in a radiator is proportional to the power
available). Sorry to say, Gene, the current drops in proportion to
the drop in the voltage in a fixed Z0 environment. If a terminated
traveling-wave antenna were 100 wavelengths long, it's current at
the termination would be a small percentage of the source current.

Hint: ExH = Poynting Vector power and the E/H ratio is constant.

Until you give up on the possibility of a point inductance
existing in reality, this is a hopeless debate. I can't believe
you are defending an indefensible model of reality, so I can only
conclude that you are defending the irrational premise of a friend.
You and I are obviously on the same side of physics and you are to be
commended for being a good enough friend to that un-named someone
to set aside your knowledge of physics and side with his/her
irrational premises, arguments, and conclusions. The reason that
I don't have any such friends is that I wouldn't accept that kind
of support if I was wrong. But I do understand it is human nature
to respond in such a manner.

The ARRL Antenna Book and various other publications give the
characteristic impedance of a horizontal single-wire TRANSMISSION
LINE over ground as:

Z0 = 138*log(4h/d) where 'h' is the height and 'd' is the diameter

Doesn't a "horizontal single-wire transmission line over ground"
sound a lot like a dipole made out of #16 wire 24 feet above ground
having a Z0 of 600 ohms?

If you ignore that question, I will assume your position on this
subject has everything to do with friendship and nothing to do
with physics. Actually, like Richard C. and I, I don't think
you and I have any argument about physics.
--
73, Cecil http://www.qsl.net/w5dxp


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