Texas Passband modulation Analog modulation AM FM PM QAM SM SSB Digital modulation ASK APSK CPM FSK MFSK MSK OOK PPM PSK QAM SC-FDE TCM Spread spectrum CSS DSSS FHSS THSS See also Capacity-approaching codes Demodulation Line coding Modem PAM PCM PWM ΔΣM OFDM FDM Multiplex techniques Template documentation