K7ITM wrote:
And exactly which part of "linear system" do you fail to understand?

I understand the meaning of your question now and
here is one for you:

Exactly which part of a constant, average, steady-state
condition of destructive interference do you fail to
understand?

Given two coherent signals interfering whose results are
10 watts of constant, average, steady-state destructive
interference, how do you propose to accomplish that
outcome when the signals are not coherent?
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73, Cecil http://www.w5dxp.com