Which of the following is an advantage of FM over AM?

Options

A. Less noise
B. Larger bandwidth
C. More circuit complexity
D. Can be transmitted to longer distance

Answer

To determine the advantages of Frequency Modulation (FM) over Amplitude Modulation (AM), we can analyze the characteristics of both modulation techniques.

### Step-by-Step Solution:

1. **Understanding FM and AM**:
- FM stands for Frequency Modulation, while AM stands for Amplitude Modulation.
- FM varies the frequency of the carrier wave to encode information, while AM varies the amplitude of the carrier wave.

2. **Frequency Ranges**:
- FM operates in the Very High Frequency (VHF) and Ultra High Frequency (UHF) ranges.
- AM operates in the High Frequency (HF) and Medium Frequency (MF) ranges.
- Since FM operates at higher frequencies, it is less susceptible to noise and interference.

3. **Noise Resistance**:
- One of the significant advantages of FM over AM is its resistance to noise.
- In FM, since the information is carried in the frequency changes, it is less affected by amplitude variations caused by noise.
- In contrast, AM signals can be significantly degraded by noise, as noise affects the amplitude of the signal.

4. **Conclusion**:
- Therefore, the primary advantage of FM over AM is that FM has less noise interference, leading to clearer sound quality.

### Final Answer:
The advantage of FM over AM is that FM has less noise interference.