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Old March 20th 08, 11:45 PM posted to rec.radio.amateur.antenna
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Posts: 2,951
Default Cobwebb feeder question

On Thu, 20 Mar 2008 22:43:25 GMT, "Barrett"
wrote:

I don't
want to do this if the S0239 socket is going to allow the feed line


Feedline radiation is a consequence of common mode currents. Common
mode currents are a consequence of unbalance. Coax systems are
unbalanced. To correct this, you need to choke the coax line at the
feed point, and probably again a quarterwave away from the feedpoint.

73's
Richard Clark, KB7QHC
 
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