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Radio frequency (Sfrwbfr)

Physical phenomena (S)
     Related Term (Associative): Physics (Tpx)
    Electromagnetism (Sf)
         Related Term (Associative): Electromagnetic devices (Qtbf)
        Electromagnetic radiation (Sfr)
             Use For: Radiation
            Electromagnetic waves (Sfrw)
                 Related Term (Associative): Waves (Smw)
                Electromagnetic wave phenomena (Sfrwb)
                    Frequency (Electromagnetism) (Sfrwbf)
                         Use For: Frequencies
                        Audio frequency (Sfrwbfm)
                             Use For: Sonic frequency; Sound frequency
                        Radio frequency (Sfrwbfr)
                             Related Term (Associative): Transmission (Dsm)
                            Broadband (Sfrwbfrb)
                            Very low frequency (Sfrwbfrc)
                                 Use For: VLF
                            Low frequency (Sfrwbfrg)
                            Medium frequency (Sfrwbfrh)
                            High frequency (Sfrwbfrj)
                            Very high frequency (Sfrwbfrm)
                                 Use For: VHF
                            Ultrahigh frequency (Sfrwbfrs)
                                 Use For: UHF
                            Superhigh frequency (Sfrwbfrw)
                                 Use For: SHF