April 20th 07, 07:49 AM
posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Dec 2006
Posts: 1,169
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Independence of waves
Richard Clark wrote in
news 
On Fri, 20 Apr 2007 05:40:13 GMT, Owen Duffy wrote:
Richard Clark wrote in
m:
...
Why would you think that superposition fails for this?
Richard, I don't... but the failure was to think that such an
experiment indicated that the two interfering waves could be isolated
at a point.
Hi Owen,
I presume all of this flows from your statement:
A practical example of this is that an omni directional receiving
antenna may be located at a point where a direct wave and a
reflected wave result in very low received power at the antenna,
whereas a directional antenna that favours one or other of the waves
will result in higher received power. This indicates that both waves
are independent and available to the receiving antenna, the waves do
not cancel in space, but rather the superposition occurs in the
antenna.
As Roy did not quote any of your material, I must presume this. Am I
correct?
Yes
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