Language Work II

Actions in Sequence:
Describe how a radio deals with a radio signal. Base your description on the chart below.

First, an aerial receives weak RF signals, then the RF tuner selects the requierd RF wave and rejects others. Next RF amplifier amplifies the selected RF wave. Following that, the detector (demoluator) separates the audio modulation from the RF carrier wave and recovers signal's original modulation voltages. At the same time, AF amplifier amplifies the audio signal. Finally, the loudspeaker converts the audio signal into sound.