Preventative Maintenance: A New Look (1988)

By Ian R. MacFarquhar, CUC Broadcasting Limited

current methods of preventative maintenance for CATV systems are based on system sweep response and do not include signal leakage detection as an ongoing part of the program. Many system problems that can go unnoticed by system sweep can be detected by signal leakage activities.

Increasing the amount of sweep work in a system has not been able to reduce service call rates commensurately. Leakage detection and correction work, however, has been found to do so in a field trial. It is proposed that PH programs for CATV systems put more emphasis on signal leakage detection as a method to reduce service calls while improving service and reliability.

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