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#11
July 11th 06, 03:57 AM
posted to rec.radio.amateur.homebrew
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What is a wire antenna's impedance?
"John - KD5YI" wrote in message
news:96bsg.3011$pB.2982@trnddc06... wrote: Output power has nothing to do with antenna impedance. At least until the antenna starts to melt. :-) I have a suspicion that many of the "random wire" antennas you see on something like his video transmitter are actually roughly lambda/2 ("end-fed zepps") -- seems to me their impedance wouldn't be as sensitive to the exact positioning relative to the case, his hands, etc., and that the higher impedance is often easier to match to for a low-power transmitter anyway. |
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