Characteristics of the Ionosphere at Washington, D.C., April 1938

Data on the ordinary-wave critical frequencies and virtual heights of the ionospheric layers are presented for the period indicated in the title. The monthly average values of the maximum usable frequencies for undisturbed days, for radio transmission by way of the regular layers is also provided.

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Bibliographic Details
Published inProceedings of the Institute of Radio Engineers Vol. 26; no. 6; pp. 781 - 785
Main Authors Gilliland, T.R., Kirby, S.S., Smith, N.
Format Journal Article
LanguageEnglish
Published The Institute of Radio Engineers, Inc 01.06.1938
Subjects
Broadcasting
Frequency
Ionosphere
NIST
Radio communication
Reflection
Storms
US Department of Commerce
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ISSN0731-5996
DOI10.1109/JRPROC.1938.228328

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Summary:Data on the ordinary-wave critical frequencies and virtual heights of the ionospheric layers are presented for the period indicated in the title. The monthly average values of the maximum usable frequencies for undisturbed days, for radio transmission by way of the regular layers is also provided.
ISSN:0731-5996
DOI:10.1109/JRPROC.1938.228328