Radio Frequency See Also: Radio and Television Interference Noise A Frequency in the range within which Radio Waves may be transmitted, from about 10 kilocycles per Second to about 300,000 megacycles per second. The radio frequency groups are: very low frequency (vlf), 10 to 30 kilohertz; low frequency (lf), 30 to 300 kilohertz; medium frequency (mf), 300 to 3,000 kilohertz; high frequency (hf), 3,000 to 30,000 kilohertz; very high frequency (vhf), 30 to 300 megahertz; ultrahigh frequency (uhf), 300 to 3,000 megahertz; superhigh frequency (shf), 3,000 to 30,000 megahertz; extremely high frequency (ehf), 30,000 to 300,000 megahertz.