COMMUNICATION SYSTEM

Advantages and Disadvantages of FM over AM

The advantages and disadvantages of FM over AM are populated below:

Advantages:

>> The primary advantages of FM over AM is its immunity to noise

>> Noise is short-duration amplitude variations caused by lightning, motors, auto-ignitions, power transients and other sources

>> Another advantages of FM over AM is the capture effect that allows the strongest signal on frequency to dominate without interference from the other signal

>> FM has greater transmitter efficiency since Class C amplifier may be used

Disadvantages:

>> FM has wide bandwidth compared to AM

>> The spectrum space taken up byFM signal may be limited by carefully controlling the deviation ratio.

>>Circuits used in FM to produce and demodulate FM is more complex and expensive than AM circuits.