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Jim Kelley wrote:
I don't agree that the terms power and energy become interchangeable by virtue of the fact that their units can both be expressed with the word Joule in them. That's why I am willing to switch from the words "Reflected Power" to "Reflected Energy" and measure that energy flow past a point on a transmission line in joules/second. Thus "power" and "watts" are dropped from the discussion along with any semantic disagreements over the definitions of those words. So the question is: With a forward RF energy flow of 200 joules/sec and a reverse RF energy flow of 100 joules/sec, would you agree that there is 300 joules of energy existing in a lossless one-second long transmission line? i.e. exactly the amount of energy required to support the forward RF energy wave and the reflected RF energy wave. Or if the above transmission line is one microsecond long, that 300 microjoules of energy exists in the line, i.e. exactly the amount of energy required to support the forward RF energy wave and the reflected RF energy wave. -- 73, Cecil, http://www.qsl.net/w5dxp |
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