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analog signal

analog signal in Culture
analog signal [(an-uh-lawg, an-uh-log)]

A signal in which some feature increases and decreases in the same way as the thing being transmitted. In am radio, for example, the strength of the radio wave goes up and down in analogy with the loudness of the original sound. (Contrast digital signal.)

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
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