Amplitude Modulation (AM) is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the amplitude of the carrier wave in accordance with the information being sent. The receiver detects these amplitude changes and converts them back into the original information.
One advantage of AM is that it is relatively simple to implement and does not require complex equipment. Additionally, AM signals can be easily detected even in noise-filled environments. However, one downside of AM is that its signal strength deteriorates quickly as it travels over long distances. This limits its usefulness for long-distance communications.
Overall, amplitude modulation is a widely used technique for transmitting information electronically. Its simplicity and robustness make it well suited for many applications, particularly in radio communications.
For other frequency bands see FM and PM