Example image of eyePlorer eyePlorer map for 'Phase modulation': Carrier wave Modulation Phase (waves) Frequency modulation Yamaha DX7 Derivative Amplitude Amplitude modulation Bandwidth (signal processing) Baseband Spectral density Sine wave Carson bandwidth rule Modulation index Electro-optic modulator Phase-shift keying Ampliphase List of acronyms and initialisms: P Modulation sphere Continuous phase modulation Pre-emphasis network Voltage-controlled oscillator Armstrong phase modulator Optical modulators using semiconductor nano-structures Direct-sequence spread spectrum Quadruplex telegraph Independent sideband Phase Jitter Modulation Phase noise Quadrature modulation Télé Distribution Française Quantum noise Wobble frequency Pound-Drever-Hall technique DCF77 Signal generator Angle modulation Demodulation Electro-optic effect Frequency drift Frequency modulation synthesis Quadrature amplitude modulation Space Communications and Navigation Program Droitwich transmitting station Near-field magnetic induction communication Pioneer 4 Analogue electronics Numerically-controlled oscillator Fender Vibratone Radio communication system