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Traditional analog tuner architectures do not effectively scale to support receiving four or more channels. To
support the simultaneous access of four channels, a system must include four analog tuners and four
demodulators. Since analog tuners consume the largest amount power in the RF front end, the overall system
power increases and the footprint for four RF tuners account for considerable board size and increased costs.

The efficiency of Full-Band Capture converts the entire analog 1 GHz cable signal to a digital signal. This highspeed precision conversion replaces all the analog tuners in a system. With the entire RF signal in digital form,
advanced digital signal processing techniques can be used to digitally tune multiple channels simultaneously
at near instantaneous speeds. Each digitally tuned channel then feeds the signal into a digital demodulator that
outputs a transport stream for use in DOCSIS or broadcast services. One Full-Band Capture Digital Tuner can
service any number of demodulators. Each demodulator can access any frequency without restriction or
relationship to other channels.