Method of obtaining radiowave propagation parameters for the Earth–ionosphere duct at e.l.f.

Method of obtaining radiowave propagation parameters for the Earth–ionosphere duct at e.l.f.

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The wave impedance of the Earth–ionosphere duct is investigated numerically and analytically in the frequency band 1 to 60 Hz. Data are presented enabling the determination of the propagation parameters of the duct by experimental measurement of the argument of the wave impedance.


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