Double-sideband suppressed-carrier transmission

Double-sideband suppressed-carrier transmission (DSB-SC): Transmission in which (a) frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier frequency and (b) the carrier level is reduced to the lowest practical level, ideally completely suppressed.

Note: DSB-SC transmission is a special case of double-sideband reduced carrier transmission.

Source: from Federal Standard 1037C and from MIL-STD-188