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narrowband

British  
/ ˈnærəʊˌbænd /

noun

  1. a limited-capacity transmission channel such as that used for transmitting telephone calls and faxes Compare broadband

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Researchers found no convincing technosignatures within the narrowband radio frequencies they examined.

From Science Daily Jul. 14, 2026

The institute said the team identified nearly 74 million narrowband signals, but ultimately traced them back to technology on the Earth’s surface or orbiting satellites.

From Los Angeles Times Jun. 6, 2026

He explains that traditionally, Seti has looked for narrowband signals similar to those used by human beings.

From BBC Feb. 21, 2024

U.S. defence company Northrop Grumman has pulled out of a competition to supply narrowband military satellite communications for Britain's armed forces, the Financial Times reported on Friday.

From Reuters Nov. 18, 2023

“They’re doing it with enormously better equipment and with many more targets, but the experiment itself is to look for narrowband signals coming from the sky. And that was Frank’s idea.”

From Scientific American Sep. 6, 2022

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