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Monday, November 16, 2020 | History

1 edition of High frequency radio communication with emphasis on polar problems found in the catalog.

High frequency radio communication with emphasis on polar problems

High frequency radio communication with emphasis on polar problems

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Published by Technivision .
Written in English


Edition Notes

Statementeditor Finn Lied.
SeriesAgardographs, no.104
ContributionsLied, Finn.
The Physical Object
Pagination130p.,ill.,26cm
Number of Pages130
ID Numbers
Open LibraryOL19675890M

Appendix F: Communications Information A At high-frequency (HF), and sometimes at very high-frequency (VHF), a sudden ionospheric disturbance (SID) of radio signals may appear as a short-wave fade (SWF). This disturbance may last from minutes to hours, depending upon the magnitude and duration of the flare.


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