Question

Which of the following is NOT the advantage of amplitude modulation?
1. It can be demodulated using a circuit consisting of very few components.
2. It is simple to implement
3. AM receivers are very cheap as no specialised components are needed
4. It is efficient in terms of its power usage

Answer 1

Correct Answer - Option 4 : It is efficient in terms of its power usage

Advantages OF AM:

• It is simple to implement.
• It can be demodulated using a circuit consisting of very few components.
• AM receivers are very cheap as no specialized components are needed.

Disadvantages of AM:

• It is not efficient in terms of its power usage.
• It is not efficient in terms of its use of bandwidth, requiring a bandwidth equal to twice that of the highest audio frequency.
• It is prone to high levels of noise because most noise is amplitude-based and AM detectors are sensitive to it.