Richard Fry wrote:
A balun can reduce common mode feedline currents due to the power supplied
to the line by the transmitter, but if the feedline is immersed in an
asymmetric radiated field, how does the balun reduce/remove the resulting,
unpredictable differential current on the feedline, and its contribution
toward producing the net radiated pattern?

It simply provides an impedance to the common-mode currents. Whether
that impedance is high enough to be effective depends upon the system
parameters and configuration.
--
73, Cecil http://www.qsl.net/w5dxp



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