Amplitude modulation

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Notion

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Science and technology

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What Wikipedia says

Amplitude modulation (AM) is a signal modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the instantaneous amplitude of the wave is varied in proportion to that of the message signal, such as an audio signal.

Excerpt from the Wikipedia article “Amplitude modulation”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Orion 8, Public domain, via Wikimedia Commons.