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Definition: frequency bands


Following are the ranges of frequencies in the bands specified by the ITU. See spectrum and frequency range.
 Frequency Band       From       To

 ELF  Extremely low    3 Hz    30 Hz
 SLF  Super low       30 Hz   300 Hz
 ULF  Ultra low      300 Hz     3 KHz
 VLF  Very low         3 KHz   30 KHz
 LF   Low             30 KHz  300 KHz
 MF   Medium         300 KHz    3 MHz
 HF   High             3 MHz   30 MHz
 VHF  Very high       30 MHz  300 MHz
 UHF  Ultra high     300 MHz    3 GHz
 SHF  Super high       3 GHz   30 GHz
 EHF  Extremely high  30 GHz  300 GHz
 THF  TeraHertz      300 GHz    3 THz