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Old December 8th 11, 01:00 PM posted to rec.radio.amateur.antenna
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Default Feedline suggestions?

On Dec 8, 4:01*am, "Wayne" wrote:
However, I'll try 20 again if I get a longer radiator up.


5/8WL on 10m is ~0.3 WL ( 1/4WL) on 20m so it will have an
inductively reactive feedpoint impedance around 78+j200. A series
capacitor of ~56 pf at the feedpoint on 20m should result in an SWR on
the coax of ~1.5:1.
--
73, Cecil, w5dxp.com


 
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