frequency modulation (FM)

intra-pulse modulation (pulse compression / modulation on pulse, MOP)

frequency-modulation receiver

frequency modulation on pulse (FMOP)

pulse repetition frequency (PRF) / pulse-repetition frequency

amplitude modulation

modulation

air modulation

amplitude-modulation receiver

modulation index

phase-modulation receiver

angle modulation noise

coherent echo modulation and detection

pulse-width modulation (PWM)

inter pulse modulation (IPM)

interpulse modulation

phase modulation on pulse (PMOP)

pulse-duration modulation (PDM)

inter-modulation distortion (IMD)

LoRa modulation

pulse-position modulation (PPM)

pulse width modulation (PWM)

pulse-length modulation (PLM)

PPM (Pulse Position Modulation) SUM (CPPM)

common frequency

doppler frequency shift

fixed frequency channel

frequency

frequency and directional chart

frequency band

frequency intelligence

frequency modulated (FM)

frequency range (band)