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The Attenuation vs Frequency Characteristics of VLF Radio Waves

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1 Author(s)
James R. Wait ; National Bureau of Standards, Boulder, Colo.

The theoretical dependence on frequency of the attenuation of the wave guide modes in vlf propagation is discussed in some detail. It is indicated that most of the published experimental data between 1 and 30 kc was compatible with the sharply bounded model of the ionosphere with a reflecting height of about 70 km during the day and 90 km during the night.

Published in:

Proceedings of the IRE  (Volume:45 ,  Issue: 6 )