The Attenuation vs Frequency Characteristics of VLF Radio Waves
1957; Institute of Electrical and Electronics Engineers; Volume: 45; Issue: 6 Linguagem: Inglês
10.1109/jrproc.1957.278470
ISSN2162-6634
Autores Tópico(s)Radio Wave Propagation Studies
ResumoThe 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.
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