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Subcarrier
A second signal "piggybacked" onto a main signal to carry additional information. In satellite television transmission, the video picture is transmitted over the main carrier. The corresponding audio is sent via an FM subcarrier. Some satellite transponders carry as many as four special audio or data subcarriers whose signals may or may not be related to the main programming.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Aerospace
- Category: Satellites
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