This document provides information about the concept and importance of electromagnetic compatibility (EMC), as well as the natural and man-made sources of electromagnetic radiation. The document also mentions the concepts of electromagnetic interference (EMI) and electromagnetic susceptibility (EMS).
The document introduces the concept of electromagnetic compatibility (EMC) in electronic circuits. It explains that EMC ensures a circuit is not affected by external noise sources while also preventing it from becoming a source of interference for other devices. The text distinguishes between natural origins of noise, such as atmospheric and cosmic radiation, and man-made sources like broadcast transmitters, motors, and computing devices.
EMC regulations cover a frequency range that extends from 30 Hz to 40 GHz.
Natural sources below 10 MHz are dominated by atmospheric noise generated by electrical storms.
Man-made noise includes AM, FM, TV and other broadcast transmitters, mobiles radios but also computing devices.