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Denny wrote:
There are no waves of average power bouncing back and forth on a transmission line. ************************************************** ******* You really mean that Roy, or am I misreading? I agree that no 'average' value of power is reflecting, but with a mismatch at the antenna terminals, voltage/current is definitely sloshing back and forth on the line making standing waves at .25L intervals that we can physically probe and measure... It depends upon one's definition of "power". A purist will argue that it is not power until it is dissipated and steady state reflected power is not dissipated until power is removed from the source. The question is: Are the ExB watts associated with a reflected energy wave defined as "power" or not. -- 73, Cecil http://www.w5dxp.com |
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