amplitude modulation
noun
: modulation of the amplitude of a radio carrier wave in accordance with the strength of the audio or other signal
also : a broadcasting system using such modulation compare frequency modulation
Example Sentences
Recent Examples on the Web Wi-Fi 7 will also increase throughput by up to 20 percent by moving from Wi-Fi 6/6E's 1,024 quadrature amplitude modulation (QAM) to 4,096 QAM while adding multi-link operation (MLO) and multi-resource unit puncturing. 
Scharon Harding, Ars Technica, 4 Aug. 2022 To start with the first point, one way to view Joseph’s counsel to Pharaoh is as a counsel of smoothing – of what engineers will call amplitude modulation and financiers call ‘collaring’ or ‘volatility’-buffering. Robert Hockett, Forbes, 5 June 2022 Early experiments with radio communication developed amplitude modulation around 1900. Kiona N. Smith, Forbes, 31 May 2021 The current electric motors generate radio frequency interference (RFI) in the same wavelengths as amplitude modulation (AM) signals, creating static. Motormouth Bob Weber, Star Tribune, 21 May 2021
Scharon Harding, Ars Technica, 4 Aug. 2022 To start with the first point, one way to view Joseph’s counsel to Pharaoh is as a counsel of smoothing – of what engineers will call amplitude modulation and financiers call ‘collaring’ or ‘volatility’-buffering. Robert Hockett, Forbes, 5 June 2022 Early experiments with radio communication developed amplitude modulation around 1900. Kiona N. Smith, Forbes, 31 May 2021 The current electric motors generate radio frequency interference (RFI) in the same wavelengths as amplitude modulation (AM) signals, creating static. Motormouth Bob Weber, Star Tribune, 21 May 2021 Word History
First Known Use
1921, in the meaning defined above