RADIO FREQUENCIES
Class Abreviation Range
Extremely low frequency ELF below 3 kilohertz
Very low frequency VLF 3 to 30 kilohertz
Low frequency LF 30 to 300 kilohertz
Medium frequency MF 300 to 3,000 kilohertz
High frequency HF 3 to 30 megahertz
Very high frequency VHF 30 to 300 megahertz
Ultrahigh frequency UHF 300 to 3,000 megahertz
Superhigh frequency SHF 3 to 30 gigahertz
Extremely high frequency EHF 30 to 300 gigahertz
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