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HP CaLan: A Cable System Tester that Is Accurate Even in the Presence of Ingress
Today, cable system operators have to deal with bidirectional traffic from sources such as pay-per-view television, high-speed Internet access, and two-way telephony. A cable testing system is described that can handle bidirectional traffic even with RF noise (ingress) on the return path.
by Daniel D. Van Winkle
 Article 8 - feb98a8.pdf
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