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Old August 24th 05, 01:48 PM
Cecil Moore
 
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Reg Edwards wrote:
If the line is a whole number of 1/2-wavelengths, with a low
resistance ground the input impedance of the coaxial outer conductor
will also be very low and longitudinal current in the line will be at
a maximum. Insertion of the choke will be very effective.


To complicate things a little more, the common-mode current may
consist of standing waves. If the choke is installed at a current
minimum point, it may have little effect.
--
73, Cecil http://www.qsl.net/w5dxp

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