Cecil Moore wrote:
Gene Fuller wrote:

* Standing waves don't require the pre-existence of traveling waves.


Please present an example of a standing wave that exists without
a forward-traveling wave component superposed with a rearward-
traveling wave component.
--
73, Cecil http://www.qsl.net/w5dxp



Cecil,

Sorry, you are not paying attention.

I gave you a reference that is full of such examples. Another reference
you have quoted on numerous occasions is "Transmission Lines and
Networks" by Walter Johnson. Take a look on page 164. He gives a
description of standing waves and then comments, "One can imagine two
oppositely traveling waves, . . . "

Note that he uses "imagine", not required, essential, or any other
mandatory word.

I do not claim the use of superposed traveling waves is wrong. However,
it is merely a mathematical trick, not unlike describing a square wave
as a summation of Fourier components. This is very commonly done, and it
is often very useful. It does not mean that mathematically derived
sub-components are somehow more valid representations of nature than the
original form.

73,
Gene
W4SZ