Amplitude Modulation (AM) is a technique used in electronic communication, most commonly for transmitting radio signals. In AM, the strength (amplitude) of a carrier wave is varied in proportion to the audio signal being sent. This allows the audio information to be encoded onto the carrier wave, enabling it to travel long distances. AM is widely used in AM radio broadcasting, where it allows for the transmission of voice and music over large areas. While AM signals can be affected by noise and interference, they are relatively simple to produce and receive, making them a popular choice for many radio stations.