QUASI ANALOG SIGNAL

A digital signal that has been converted to a form suitable for transmission over a specified analog channel . ( 188 ) Note: The specification of the analog channel should include frequency range , bandwidth , signal-to-noise ratio , and envelope delay distortion . When quasi-analog form of signaling is used to convey message traffic over dial-up telephone systems, it is often referred to as voice- data . A modem may be used for the conversion process.