HP 5990-6152EN free download

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Making Conducted and Radiated Emissions Measurements Application Note Table of Contents 1.0 Introduction to Radiated and Conducted Emissions Measurements ... 3 1.1 Precompliance versus full compliance EMI measurements ...4 1.2 Systems for performing precompliance measurements ...4 2.0 Precompliance Measurements Process... 5 2.1 European norms descriptions ...6 2.1.1 EN55011 (CISPR 11) ISM ...6 2.1.2 EN55014 (CISPR 14)...6 2.1.3 EN55022 (CISPR 22)...6 2.2 Federal Communications Commission ...6 2.2.1 FCC requirements summary ...6 3.0 Emissions Testing ... 7 3.1 Introduction ...7 3.2 Conducted emissions testing...7 3.3 Radiated emissions measurements preparation ... 10 3.4 Setting up the equipment for radiated emissions measurements ... 10 3.5 Performing radiated emissions measurements ... 11 4.0 Problem Solving and Troubleshooting ... 13 4.1 Diagnostics testing setup ... 13 4.2 Problem isolation ... 14 Appendix: A Line Impedance Stabilization Networks (LISN)...15 A1.0 Purpose of a LISN ... 15 A1.1 LISN operation ... 15 A1.2 Types of LISNs ... 16 A2.0 Transient limiter operation... 16 Appendix B: Antenna Factors ... 17 B1.0 Field strength units ... 17 B1.1 Antenna