Tom Donaly wrote:

Cecil Moore wrote:
The discussion is no longer about coils. It's clear that a
lot of posters don't understand the nature of standing waves.
If they don't understand standing waves in a transmission
line or on a wire, they cannot possibly understand standing
waves on a coil.

Well, Cecil, you've certainly shown your knowledge is weak in
this area. You can improve the general knowledge by being the
first to crack the books.

The nature of standing waves is not a difficult subject. Some
people have a single particular misconception about standing
waves that have lead them to technically incorrect conclusions
about standing wave antennas. In fact, before I brought up the
subject, it appeared they didn't even realize that a mobile
antenna is a standing wave antenna.

Given a lossless, unterminated transmission line, with two black
boxes located at points along the line.

Source-----------a-BBox-b-------------c-BBox-d-----------open

The current at 'a' is one amp and the current at 'b' is zero

The current at 'c' is zero and the current at 'd' is one amp

What's in the black boxes?
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73, Cecil http://www.qsl.net/w5dxp