What type of signal does a balanced modulator produce?

A balanced modulator is a specialized mixer circuit designed to combine an modulating audio signal with an RF carrier. Its defining characteristic is that its balanced design cancels out (suppresses) the original RF carrier from the output. Because the carrier is suppressed but both the upper and lower sidebands generated by the mixing process remain, the resulting output is a Double Sideband Suppressed Carrier (DSBSC) signal. To generate a Single Sideband (SSB) signal, the output of the balanced modulator must subsequently be passed through a highly selective bandpass filter (or phasing circuit) to remove one of those sidebands. Therefore, the balanced modulator alone does not produce SSB, nor does it produce a full carrier or an FM signal.