I'm sorry, Cecil, but that Java applet is a poor cousin of what I had
in mind. It only tells part of the story. Please re-read my message
carefully.

Cheers,
Tom

Cecil Moore wrote, in Message-ID:
:
K7ITM wrote:

From where I am, Cecil, it sounds a lot more like everyone is bored to
tears with standing waves, since they are nothing more than the result
of adding together a couple travelling waves, and everyone here
understood them LONG ago.

Everyone *thought* they understood them. The assertion that "current
is current" proves that they didn't really understand them.

cos(kz + wt) is simply not the same thing as cos(kz)*cos(wt)
There is no trig idenity that will make them the same.

Even W7EL's assertion about EZNEC not worrying about traveling
wave current is wrong. When reflected current is eliminated in
the traveling wave antenna design, EZNEC faithfully reports the
traveling wave current proportional to cos(kx+wt).

Please comment on the tabular data that I posted from EZNEC.

And again, I apologize for offending you.

As I've posted before, and as far as I know nobody's taken me up on it,
it's quite enlightening to see an animation of the standing
wave+travelling wave pattern that develops on a transmission line for
various values of the ratio between the two travelling wave amplitudes.
But once you've seen it, and likely even before, you know what you
need, and (most of us) can move on

I've posted this java graphic before. The standing wave current is
obviously not the same as the traveling current.

http://users.pandora.be/educypedia/e...stwaverefl.htm
--
73, Cecil http://www.qsl.net/w5dxp