On Fri, 21 Mar 2008 11:22:22 -0500
Cecil Moore wrote:
Roger Sparks wrote:
So it looks to me like Keith is right in his method, at least in this case.
Roger, do you understand why EE201 professors admonish
their students not to try to superpose powers?
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73, Cecil http://www.w5dxp.com
No, I really don't.
I do understand that you had better not try to find the power flowing from superposed voltages because they may be the sum of apples and oranges. That is, the superposed voltages may be flowing in opposite directions so they will each be carrying power but the power will be available/reachable only for the direction toward which the wave is traveling. An SWR meter comes to mind here.
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73, Roger, W7WKB