
AM (Amplitude Modulation)
Amplitude Modulation (AM) is a method used to encode information, such as voice or music, by varying the strength (amplitude) of a carrier wave. In simple terms, it involves changing the loudness of the radio signal to convey sound. AM is commonly used in radio broadcasting, where different stations are assigned specific frequencies. When you tune into an AM station, your radio detects these changes in amplitude, allowing you to hear the transmitted audio. While it is effective for long-distance transmission, AM is more susceptible to noise and interference compared to other modulation methods, like FM (Frequency Modulation).