Language Work 2- Actions in sequence

3. Describe how a radio deals with a radio signal. Base your description on the chart below.



First of all, an aerial recieves weak RF signals. Secondly, RF tuner selects the required RF wave and rejects others. Following that a RF amplifier amplifies the selected RF wave and then a detector separates the audio modulatio from the RF carrier wave and recovers signal's original modulation voltages. Next, AF amplifier amplifies the audio signal and finally a loudspeaker converts the audio signal into sound.