Double-sideband suppressed-carrier transmission

Double-sideband suppressed-carrier transmission (DSB-SC) is <a href="/facts/Transmission_(telecommunications)/33zk8a0A">transmission</a> in which frequencies produced by <a href="/facts/Amplitude_modulation/3sTxsXk6">amplitude modulation</a> (AM) are symmetrically spaced above and below the <a href="/facts/Carrier_frequency/ae98pBlY">carrier frequency</a> and the carrier level is reduced to the lowest practical level, ideally being completely suppressed.
In DSB-SC, unlike simple AM, the wave carrier is not transmitted; thus, much of the power is distributed between the side bands, which implies an increase of arial coverage in DSB-SC, for the same power consumption.
DSB-SC transmission is a special case of <a href="/facts/Double-sideband_reduced_carrier_transmission/Hzgskkyd">double-sideband reduced carrier transmission</a>. It is used for <a href="/facts/Radio_Data_System/wvNmRJr9">radio data systems</a>. This mode is frequently used in <a href="/facts/Amateur_radio/cBsMyamV">amateur radio</a> voice communications, especially on <a href="/facts/High_frequency/JmDJLR5I">high-frequency</a> bands.

Double-sideband suppressed-carrier transmission open-in-new

Double-sideband suppressed-carrier transmission