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

Examples of amplitude modulation in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Meanwhile the amplitude modulation rate of music is consistent across genres, at about 1 to 2 Hz. Andrew Chang, Scientific American, 18 Sep. 2024 Four-level pulse amplitude modulation (PAM4) is an encoding scheme that allows four bits of information to be transmitted every clock cycle, allowing interconnect bandwidth to increase within the physical limits imposed on these interconnects. Steven Woo, Forbes, 3 Sep. 2024 But good old amplitude modulation joins those shiny CDs and twisted tapes on the scrapheap of history, at least as far as the next Ford Mustang is concerned. Jonathan M. Gitlin, Ars Technica, 10 Mar. 2023 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

Word History

First Known Use

1921, in the meaning defined above

Time Traveler
The first known use of amplitude modulation was in 1921

Dictionary Entries Near amplitude modulation

Cite this Entry

“Amplitude modulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amplitude%20modulation. Accessed 14 Nov. 2024.

Kids Definition

amplitude modulation

noun
1
: changes in the amplitude of a radio carrier wave according to the strength of the signal
2
: a broadcasting system using amplitude modulation
Last Updated: - Updated example sentences
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