narrowband

British  

/ ˈnærəʊˌbænd /

noun

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

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Example Sentences

“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

She adds that the firm's speaker releases "gentle" short-travelling multi-frequency sounds, rather than "painful" narrowband frequencies that carry through the air for much longer distances.

From BBC

Called ELERA, the narrowband network will use spectrum management technology to boost speeds up to 1.7Mbps, the company said on Thursday, up to four times existing levels and beating rival global L-band networks.

From Reuters

Some details of this curious narrowband hum at a frequency of around 982.002 MHz, and its apparent coincidence with the direction of Proxima Centauri, have been reported, and we’ll have to wait a little while longer for the full technical analysis to be presented.

From Scientific American

Smith began sifting through the data in June of this year, but it was not until late October that he stumbled upon the curious narrowband emission, needle-sharp at 982.002 megahertz, hidden in plain view in the Proxima Centauri observations.

From Scientific American