Frequency:

• aircraft emergency frequency
• automatic frequency control (AFC)
• band
• bandwidth (BW)
• barrage jamming
• baseband
• calling frequency
• carrier frequency
• channel offset
• characteristic frequency
• cutoff frequency
• extremely high frequency (EHF)
• extremely low frequency (ELF)
• frequency
• guarded frequency
• heterodyne
• high frequency
• hiss
• hold-in frequency range
• image frequency
• image rejection ratio
• insertion-loss-vs.-frequency characteristic
• intermediate frequency (IF)
• intermodulation product
• lock-in frequency
• lock-in range
• lowest usable high frequency (LUF)
• low frequency (LF)
• maximum keying frequency
• maximum modulating frequency
• maximum usable frequency (MUF)
• medium frequency (MF)
• military common emergency frequency
• natural frequency
• nominal bandwidth
• normalized frequency (V)
• notch
• occupied bandwidth
• precise frequency
• preemphasis
• primary frequency
• primary frequency standard
• primary service area
• priority
• protected frequency
• pull-in frequency range
• pulse repetition rate
• pump frequency
• quartz oscillator
• radio channel
• radio frequency (rf)
• radio wave
• Rayleigh distribution
• reference frequency
• secondary frequency standard
• sideband
• single-frequency (SF) signaling
• single-tone interference
• slewing
• spectral density
• spectrum signature
• spread spectrum
• spurious emission
• standard test tone
• standard time and frequency signal (STFS) service
• stereophonic sound subcarrier
• stopband
• syntonization
• threshold frequency
• transition frequency
• ultra high frequency (UHF)
• ultra low frequency (ULF)
• very high frequency (VHF)
• very low frequency (VLF)
• virtual carrier frequency
• voice frequency (VF)
• wideband