Which is a characteristic of Frequency Modulation (FM) compared to Amplitude Modulation (AM)?

Frequency Modulation (FM) is indeed more resistant to noise compared to Amplitude Modulation (AM). This characteristic is primarily due to the way FM encodes information. In FM, the frequency of the carrier wave varies in accordance with the amplitude of the input signal, while the amplitude of the carrier wave remains constant. This constant amplitude provides a level of immunity to signal degradation caused by noise, which often affects amplitude rather than frequency.

When noise enters the signal, it may alter the amplitude, but since FM relies on frequency changes to convey information, the desired signal can remain intact. This is particularly significant in environments with various types of interference, which commonly impact AM signals.

In contrast, AM signals can suffer from distortion caused by noise, as changes in amplitude can directly affect the signal's quality and clarity. Thus, when evaluating the resilience to noise, FM presents a clear advantage, making it a preferred choice for high-fidelity audio transmission and broadcasting.