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The authors answer the common questions of cable operators and system and equipment designers about the return path system. They discuss only return signals that are in a frequency band below the forward signals, and assume that only digital signals are carried back to the headend on the return path. The appendices include material on the baseband digital structures of the public switched network and the protocols of the Internet, and on ways to transport analog video on the return path and to measure digital signals with a spectrum analyzer. Annotation c. by Book News, Inc., Portland, Or.
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