The power consumed in an AM carrier transmits no information
and is effectively wasted. It would make sense, therefore, to
transmit only the sidefrequencies, which do contain the information. When
both sidebands of an AM modulated carrier are transmitted without
the carrier, the transmission is called double-sideband suppressed-carrier (DSBSC) or,
more commonly, DSB.
Other topics in our resources on Communications Systems related to Double sideband include: