#radio_frequency__radiofrequency  an electromagnetic wave frequency between audio and infrared
  supertype:  frequency__frequence__oftenness__oftennes  the number of occurrences within a given time period (usually 1 second); "the frequency of modulation was 40 cycles per second"
  part of:  electromagnetic_spectrum
  subtype:  extremely_low_frequency__extremelylowfrequency__ELF  below 3 kilohertz
  subtype:  very_low_frequency__VLF  3 to 30 kilohertz
  subtype:  low_frequency__lowfrequency__LF  30 to 300 kilohertz
  subtype:  medium_frequency__MF  300 to 3000 kilohertz
  subtype:  high_frequency__HF  3 to 30 megahertz
  subtype:  very_high_frequency__VHF  30 to 300 megahertz
  subtype:  ultrahigh_frequency__ultrahighfrequency__UHF  300 to 3000 megahertz
  subtype:  superhigh_frequency__superhighfrequency__SHF  3 to 30 gigahertz
  subtype:  extremely_high_frequency__EHF  30 to 300 gigahertz

No statement uses or specializes radio_frequency; click here to add one.