ANSI SCTE-75-2012 pdf download ENGINEERING COMMITTEE Interface Practices Subcommittee
1.0 SCOPE AND DEFINITIONS
1.1 This document describes a procedure for evaluating the accuracy of internal and external RF test points as used to monitor input and output ports of Cable Telecommunications equipment.
1.2 A Test Point is any accessible connection that represents the actual signal to be measured. The test point has isolation, which allows viewing of the signal at a reduced level without interaction.
2.0 COMPLIANCE NOTATION
“SHALL” This word or the adjective “REQUIRED” means that the item is an absolute requirement of this specification.
.0 EQUIPMENT
3.1 Network Analyzer, Agilent ENA E5062A or equivalent.
3.2 For cable-powered equipment, a power inserter of suitable frequency range and current capacity for the DUT (device under test).
3.3 Cables, adapters, and terminations as required.
4.0 SET-UP
4.1 Follow the calibration procedure recommended by the analyzer manufacturer.
4.2 Allow adequate warm-up and stabilization time prior to calibration.
4.3 Apply power to the DUT and allow it to warm up for at least 15 minutes.