Juniper Networks G10 CMTS manual RF Measurements

Chapter 7

RF Measurements

This chapter provides the procedures for measuring the downstream and upstream RF signals of a DOCSIS Module using a spectrum analyzer. You can follow these procedures immediately after the initial installation and configuration of the G10 CMTS to ensure the system is configured and operating properly. In addition, these procedures can assist you with the diagnosis of RF issues that are detected by spectrum monitoring applications such as the ServiceGuard Management System (see “ServiceGuard Management System” on page 147).

The procedures assume the use of a Hewlett Packard HP8591C CATV Analyzer, but any equivalent spectrum analyzer will suffice.

This chapter discusses the following topics:

!Downstream RF Measurement in CATV Mode on page 134

!Downstream RF Measurement in Spectrum Analyzer Mode on page 135

!Upstream RF Measurement on page 137

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RF Measurements 133