Topic summary
Single-sideband
Extracted from the Wikipedia article Single-sideband modulation.
Basic concept
Single-sideband modulation (SSB) is derived directly from AM by removing this redundancy. Since either sideband alone contains the entire modulating signal, SSB transmits only one sideband and usually suppresses the carrier. Compared with AM, SSB requires approximately half the bandwidth and uses transmitter power more efficiently. SSB signals are typically generated at low power using filtering or phase-cancellation techniques and then amplified linearly.