The Cisco uBR-MC16S Spectrum Management Line Card is the first DOCSIS-qualified line card to offer an integrated spectrum analyzer that maximizes spectrum utilization, improves response time to ingress and noise impairments, provides intelligent "look ahead" capability to hop to a new center frequency in clear spectrum, and increases cable plant availability. The card reduces reliance on costly spectrum analyzers at headends or hubs. It quickly provides spectrum views through an intuitive interface, without the complicated setup time of a spectrum analyzer.The Cisco uBR-MC16S meets all DOCSIS Annex B RF data rates, channel widths, and modulation schemes through the use of Digital Signal Processing (DSP) technology. The card continuously analyzes upstream spectrum quality in the DOCSIS frequency range of 5 to 42 MHz, records carrier-to-noise (C/N) information on each upstream port, and can dynamically shift the upstream channel frequency within a band, reduce upstream channel width, or change modulation mode when necessary based on user-configurable specifications.