On Dec 24, 10:30 am, Cecil Moore wrote:

A standing wave is a math model created in the human
mind as a useful shortcut. Shortcuts do NOT dictate
reality. Reality is supposed to do the dictating.

Standing waves are the results of the superposition
of two traveling waves. Any power extracted comes
from the component traveling waves, not from the
standing waves. For pure standing waves:

ExH = V*I*cos(A) = 0 watts (per unit area)

OH NO! even cecil has it right! carry on cecil, you are more persistent
than i am. i have enough other stuff to do right now... i had some fun
yesterday while the wx was bad here, today there are better things to do,
like scrape ice and sand the driveway, and fix a yagi that got tipped in the
ice/wind last weekend. so you all carry on, i'm sure cecil will set you all
straight now so i'll leave it in his capable hands.