What is Amplitude Modulation? Write down its Advantages and Disadvantages.

•      Amplitude Modulation: Amplitude Modulation is a process where the amplitude of a carrier signal is altered according to information in a message signal. The frequency of the carrier signal is usually much greater than the highest frequency of the input message signal.

- Advantage of AM

1- Corverage area of AM Reciever is wider than FM because atmospheric propagation

2- AM is long distance propagation because λ

3- AM Circuit is cheapter and non complex than FM.

4- AM have bandwidth limited and FM unlimited

- Disadvantage of AM

1- The only one way to withance to noise happen is increasing power transmite

2- Signal of AM is not stronger than FM when it propagate to obstacle. (Urband)

3- Only one sideband of AM transmites Information Signal, So it loss power on other sideband and Carrier.

4- Noise mixes AM Signal in amplitude when it propagates in free space that it make difficulty to recover Original Signal at reciever.