IEEE 473-2025

This recommended practice provides information and guidance for characterizing radiated levels of electromagnetic (EM) noise or interference that may be present in various environments between 10 kHz and 40 GHz. It provides methods that may be used to plan for and execute the electromagnetic environment characterization of a particular environment or location. The EM site survey is intended to be a systematic, documented investigation of the measurable characteristics of the electromagnetic fields at one or more frequencies and locations as necessary during a designated time period, which yields results that are interpretable and communicable among subsequent investigators.

The purpose of this recommended practice is to provide the necessary background, guidance, and methodology needed to plan an electromagnetic site survey, perform the survey, document the results, and analyze its outcome.

New IEEE Standard - Active. Information and guidance for characterizing radiated levels of electromagnetic (EM) noise or interference that may be present in various environments between 10 kHz and 40 GHz are provided in this recommended practice. Methods that may be used to plan for and execute the characterization of the electromagnetic environment in a particular environment or location are provided. Characterizing the electromagnetic environment is traditionally referred to as a site survey. A site survey can be applicable to congested metropolitan environments, industrial settings, commercial buildings, open fields, remote geographical locations, and in and around ships, aircraft, and vehicles.