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Idaho State University

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Baseband
  • The spectral band occupied by an unmodulated signal. Note: Baseband transmission is usually characterized by being much lower in frequency than the signal that results if the baseband signal is used to modulate a carrier or subcarrier.
  • In facsimile, the frequency of a signal equal in width to that between zero frequency and maximum keying frequency. See also baseband signaling, carrier (cxr), frequency, modulation, multiplex baseband, multiplexing.