Thread: folded dipoles
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Old December 26th 06, 04:37 PM posted to rec.radio.amateur.antenna
Dave Dave is offline
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First recorded activity by RadioBanter: Jul 2006
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Default folded dipoles


"Cecil Moore" wrote in message
...
Dave wrote:
note that the shape of the conductor is very important in this process
also, a blunt smooth surface will produce smaller fields and have a
higher inception voltage than a sharp point because the field gets
concentrated more around the point and thus requires a lower voltage to
start corona breakdown.


So the sharp ends of a single-wire dipole would be more
conducive to corona than would a rounded full-wave loop.
Would you say that an antenna without corona is quieter
than an antenna with corona?


of course. we see that here all the time, the top antenna of a stack can be
very noisy with corona, but those lower down on the tower (even though they
are getting hit by the same rain/snow) are quiet.