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Definition of F region
1. Noun. The highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission.
Exact synonyms: Appleton Layer, F Layer
Group relationships: Ionosphere
Generic synonyms: Part, Region
Group relationships: Ionosphere
Generic synonyms: Part, Region
Lexicographical Neighbors of F Region
Literary usage of F region
Below you will find example usage of this term as found in modern and/or classical literature:
1. Change-Point Problems by Edward G. Carlstein, Hans-Georg Müller, David Siegmund (1994)
"Like the conditional likelihood ratio region of Section 2 the approximate f region
is based on the likelihood ratio statistic. However, the boundaries of ..."