On 19 Oct, 14:31, Cecil Moore wrote:
Richard Harrison wrote:
Relative to the impedance of a reasonable antenna. the impedance of the
atmosphere or the impedance of free-space is non-conductive.
When the signal following the conductive surface of an antenna reaches
its end of the conductive path, current reverses its direction of travel
of necessity.

Maybe better understood using visible EM waves.
When the medium's index of refraction changes,
reflections are the result. One can learn a
lot about EM wave reflection by looking in a
mirror. With some of the strange concepts about
EM reflected energy that exist on this newsgroup,
it is a wonder how the promoters of such concepts
can look themselves in the mirror. :-)
--
73, Cecil http://www.w5dxp.com

Probably true. I wonder if they would continue
to argue if the 1/4 wave antenna was tubular or is
there another reason that the center of a radiator
is off limits to current flow.
Still you can't blame them if all they know comes
from the ARRL books. After all it is a hobby and in
the early days many did not have the opportunity
for a college education
Best regards
Art