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baseband
Electronic data prior to any modification. It refers to analog or digital data before they are merged with other signals (multiplexed) or intermixed into a carrier wave (modulated). See multiplexing and modulation.




Baseband Video
Note the use of "baseband video" (red arrow) in this set-top cable box diagram. It refers to a video-only composite video signal that is neither combined with any audio nor is riding within a carrier frequency for transmission. See composite video and carrier frequency.





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