bn:00005086n
Noun Named Entity
Categories: Ionosphere, Wikipedia articles incorporating text from the Federal Standard 1037C, Radio frequency propagation
EN
F region  Appleton layer  F layer  Appleton Region  Edward Appleton Layer
EN
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 WordNet 3.0
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EN
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 WordNet 3.0 & Open English WordNet
The F region of the ionosphere is home to the F layer of ionization, also called the Appleton–Barnett layer, after the English physicist Edward Appleton and New Zealand physicist and meteorologist Miles Barnett. Wikipedia
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