Extra exam question E7E04

WhyOne way to produce a single-sideband phone signal is to use a balanced modulator followed by a filter. One standard way to produce a single-sideband phone signal is to run the audio through a balanced modulator, which suppresses the carrier and produces a double-sideband signal, and then pass that through a sharp filter to remove one of the two sidebands, leaving just the single sideband, answer A. Reactance modulators and loop modulators are associated with FM generation, not SSB, and a product detector followed by a DSB signal describes demodulation, the reverse process, not generating an SSB signal in the first place.