Thread: Dish reflector
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Old April 15th 09, 02:35 AM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Dish reflector

Jim Kelley wrote:
I'm surprised they ever ... discussed systems that have
standing waves, and nothing else.


I'm not surprised because you have obviously never cracked
open their books - tsk, tsk. Reference page 288 of "Optics",
by Hecht, 4th edition, 7.1.4 Standing Waves.

What's amazing is that you continue to insist on attributing
interference with supernatural powers - "redistribution"
being one, ...


Obviously, you have never read the following FSU web page:

micro.magnet.fsu.edu/primer/java/scienceopticsu/interference/waveinteractions/index.html

"... when two waves of equal amplitude and wavelength that are
180-degrees ... out of phase with each other meet, they are not
actually annihilated, ... All of the photon energy present in
these waves must somehow be recovered or *redistributed* in a
new direction, according to the law of energy conservation ...
Instead, upon meeting, the photons are *redistributed* to regions
that permit constructive interference, so the effect should be
considered as a *redistribution* of light waves and photon energy
rather than the spontaneous construction or destruction of light."

Exactly what is it about the *redistribution* of energy that you
don't understand?

... please describe if you would
how one would go about actually measuring standing wave current delay -
whatever that is.


I cannot improve on Hecht's words in "Optics":

"This is the equation for a STANDING or STATIONARY WAVE, as
opposed to a traveling wave. Its profile does not move through
space; ... It doesn't rotate at all, and the resultant wave
it represents doesn't progress through space - its a standing
wave."

In other words, "standing wave current delay" does not exist.
Only an ignorant fool would think that it could exist given
the equation for a standing wave. Yet this is the current
that w7el and w8ji tried to use to measure the delay through
a 75m mobile loading coil.

The suggestion sounds a little nutty to me, to be honest. Is it
possible that you might be mistaken about any of this?


I could be mistaken about your ulterior motive but it is hard
for me to accept the fact that you guys are just dumb as a stump.
I would rather think that you, w7el, and w8ji have a modicum
of intelligence and are merely engaged in a conspiracy to
hoodwink the uninitiated. Your motive for such is unclear.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com