Frequency Letter-Band Nomenclature BandDescriptionFrequency RangeLFLow frequency30 KHz – 300 KHzMFMedium frequency300 KHz – 3 MHzHFHigh frequency3 MHz – 30 MHzVHFVery high frequency30 MHz – 300 MHzFrequency band designations – AH Systems www.ahsystems.com › notes › frequency band designations