bn:00043975n
Noun Concept
Categories: Radio spectrum, Wireless
EN
high frequency  HF  HF radio  high-frequency
EN
Definitions
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Sources
EN
High frequency is the ITU designation for the range of radio frequency electromagnetic waves between 3 and 30 megahertz. Wikipedia
The ITU 3–30 MHz radio frequency range Wikipedia Disambiguation
Range 3-30 MHz of the electromagnetic spectrum Wikidata
The frequency area from 3 MHz through 30 MHz, commonly used for radio broadcasting. Wiktionary
Frequency area from 3 MHz through 30 MHz. Wiktionary (translation)
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