Tom Donaly wrote:
You know, Cecil, a pulse train also satisfies the wave equation.
Why are you married to sinusoidal waves? Haven't you ever seen
ghosts on a tv picture? What do those Ghosts represent?

If one doesn't understand sinusoidal waves, one doesn't have
a ghost of a chance of understanding a pulse train. Trying
to introduce a pulse train before understanding sinusoidal
values is just muddying the waters.

In a closed system, such as a source, transmission line, and
receiver, ghosting represents reflected waves.
--
73, Cecil http://www.qsl.net/w5dxp