Single Sideband Modulation (SSB) is a type of amplitude modulation used in communication systems. It transmits information by varying the amplitude of a carrier wave, but only one of the sidebands (either the upper or lower) is sent, while the carrier wave is suppressed. This makes SSB more efficient than traditional amplitude modulation, as it uses less power and bandwidth. SSB is commonly used in radio communications, especially in long-distance transmissions. It allows for clearer signals and reduces interference, making it ideal for applications like amateur radio and maritime communication. By eliminating the carrier and one sideband, SSB enhances the overall quality of the transmitted signal.