Quote:
Originally Posted by 1885.Blake
There ain't no such thing as a special kind of EM "wave" that is any more or less evanescent than any other in a vacuum.
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Look it up. It's more of a standing wave than a "traveling" one. Here's a reasonably comprehensive explanation:
http://www.andrew.cmu.edu/user/dcpri...nt%20waves.htm
The resonant coil in the 10 MHz system confines the waves in the same way as does total internal reflection in an optical system.