amplitudemodulerte

Amplitude modulation, often abbreviated as AM, is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. The technique involves varying the amplitude of the carrier wave in proportion to the message signal being transmitted. The carrier wave is a high-frequency signal that is relatively constant in amplitude and frequency. The message signal, which could be audio, data, or any other form of information, is what we want to send. In AM, the amplitude of the carrier wave is made to follow the instantaneous amplitude of the message signal. This means that when the message signal has a high amplitude, the carrier wave's amplitude increases, and when the message signal's amplitude is low, the carrier wave's amplitude decreases. The frequency and phase of the carrier wave remain constant. At the receiving end, a demodulator extracts the original message signal by detecting these amplitude variations. AM is widely used in AM broadcasting for radio transmission due to its simplicity in both transmission and reception. However, it is susceptible to noise and interference, which can affect the amplitude of the signal and be misinterpreted as part of the message.