Frequency Modulation (FM) is a method of encoding information in a carrier wave by varying its frequency. This technique is commonly used in radio broadcasting to transmit audio signals, allowing for clearer sound quality and reduced interference compared to amplitude modulation (AM). In FM, the amplitude of the carrier wave remains constant while the frequency changes according to the input signal. This results in a more robust transmission, making FM ideal for music and voice communication. FM is also utilized in television audio, two-way radios, and satellite communications for its efficiency and reliability.