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DSB-SC is basically an amplitude modulation wave without the carrier, therefore reducing power waste, giving it a 50% efficiency. This is an increase compared to normal AM transmission (DSB) that has a maximum efficiency of 33.333%, since 2/3 of the power is in the carrier which conveys no useful information and both sidebands containing identical copies of the same information.
Anyway, who on earth can listen to Kerim? Therefore, the world's Elite of Science will keep teaching the new generations that a simple reliable analogue demodulator for a DSB AM signal having any modulation index (including m=infinity, that is DSB-SC) CANNOT exist. KerimF 01:28, 26 March 2021 (UTC)
Reduced-carrier transmission is an amplitude modulation (AM) transmission in which the carrier signal level is reduced to reduce wasted electrical power. Suppressed-carrier transmission is a special case in which the carrier level is reduced below that required for demodulation by a normal receiver.
Double-sideband reduced carrier transmission (DSB-RC): transmission in which (a) the frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier and (b) the carrier level is reduced for transmission at a fixed level below that which is provided to the modulator. Note: In DSB-RC transmission, the carrier is ...
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The David R. Goode Stock Index From January 2008 to December 2012, if you bought shares in companies when David R. Goode joined the board, and sold them when he left, you would have a 30.7 percent return on your investment, compared to a -2.8 percent return from the S&P 500.