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Open-ended antennas like dipoles are standing wave antennas. The forward current is relatively constant through the coil and the reflected current is relatively constant through the coil. But the phasor sum of those two currents can vary wildly from end to end in the coil because of phase shifts. -- 73, Cecil http://www.qsl.net/w5dxp Don't we have a case of coil being RF choke to certain extent? Also I think that behaviour of radiator before and after the coil defines the magnitude of the current, no? Yuri, K3BU |
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