Fm, or frequency modulation, is a method of encoding information in a carrier wave by varying its frequency. This technique is commonly used in radio broadcasting, where it allows for clearer sound quality and reduced interference compared to amplitude modulation (AM). Fm is particularly effective for transmitting music and voice, making it a popular choice for FM radio stations. In addition to radio, Fm is also utilized in other applications, such as television audio and two-way radio communications. The technology works by changing the frequency of the wave in accordance with the amplitude of the input signal, resulting in a more robust transmission that can maintain quality over longer distances.