Amplitude Modulation (AM) theory

Amplitude Modulation (AM) is a method of transmitting information, such as sound, by varying the strength (amplitude) of a high-frequency carrier wave in proportion to the audio signal. In essence, the carrier wave's amplitude changes in sync with the sound signal's intensity, allowing the original sound to be encoded onto a radio wave. When received, a demodulator extracts these amplitude variations, reconstructing the original audio. AM is widely used in radio broadcasting due to its straightforward transmission process, though it is more susceptible to noise and interference compared to other modulation methods.