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I have heard it given as, "speed of light times mu naught."
However, I have not examined proof of this, and actually, that is claimed to be the impedance of space itself (a vacuum), "air" maybe slight different. Anyway, I adopted it simply because it seems to be accepted--do a "google search" with the search terms: [ impedance either 377 ohms ] You will either find your proofs there, or not.... Warmest regards, John "Bob Miller" wrote in message ... | On Fri, 29 Apr 2005 22:07:51 -0700, "John Smith" | wrote: | | My antenna seems to match the impedance of my transmission line (50 ohms) to | the impedance of the either (370 some-odd-ohms), isn't that a balun? | | Regards, | John | | | How did you compute the impedance of the "either"? | | bob | k5qwg | | |
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