HP 5990-7420EN free download

File name 5990-7420EN.pdf

Making EMI Compliance Measurements Application Note Table of Contents Introduction to compliance measurements...3 The compliance measurements process ...4 Compliance EMI receiver requirements ...7 Requirements above 1 GHz ...8 Conducted emissions measurements ...9 Conducted test setup ...9 Configuring the receiver...9 Performing conducted emissions measurements...11 Radiated emissions measurements...13 Open site requirements...13 Radiated emissions test setup ...14 Measuring radiated emissions ...15 Placement of EUT for maximum signals ...16 Ambient plus EUT measurements...16 Appendix A - Line impedance stabilization networks ...17 Appendix B - Antenna factors...19 Appendix C - Basic electrical relationships ...21 Appendix D - Detectors used in EMI measurements ...22 Appendix E - EMC regulatory agencies ...25 Glossary of acronyms and definitions ...26 2 Introduction to compliance Electrical or electronic equipment that uses the public power grid or has potential for electromagnetic emissions must pass EMC (electromag