What is AM Modulation? Explained Simply!
AM modulation, or Amplitude Modulation, is a method used to encode information in a carrier wave by varying its amplitude. Here’s a simple breakdown:
Carrier Wave: A consistent wave (often in radio frequencies) used to carry the information.
Amplitude: The height of the wave. In AM, this height changes to represent the audio or data signal.
Information Signal: The actual content you want to transmit, like music or voice.
How It Works:
Mixing: The information signal is combined with the carrier wave.
Varying Amplitude: The amplitude (height) of the carrier wave is adjusted according to the information signal. Higher amplitudes represent louder sounds and lower amplitudes represent softer sounds.
Transmission: The modulated wave is then transmitted through an antenna.
Where Is It Used?
AM modulation is commonly used in:
AM radio broadcasting
Some television audio signals
Air traffic control communications
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