![]() ![]() Radiated Emissions (E-Field): Radiated emissions are electromagnetic interference (EMI) or disturbances that originate from frequencies generated internally by an electronic or electrical device. E-Fields and H-Fields move at right angles to each other. These two components of an electromagnetic field are in themselves two separate fields but not totally separate phenomena. Magnetic Field (H-field) – Usually measured in amps per meter (A/m).Electric Field (E-Field) – Usually measured in volts per meter (V/M).Typically immunity testing is not required for consumer/commercial type products intended for sale/distribution in Australia, New Zealand, North America and Canada.ĮMC Emissions are further sub-divided into two categories:Īn electromagnetic field consists of the following components: Susceptibility is basically the opposite of immunity, in that the less a device is immune to electromagnetic interference, the more susceptible it is. Immunity/Susceptibility – Immunity is the ability of an electronic device to function normally in an electromagnetic environment without experiencing interference/malfunction due to the emissions emanating from another electronic device. ![]() Also known as Electromagnetic Interference (EMI). Emissions – Electromagnetic disturbances emanating from an electronic device that may cause interference/malfunction to another electronic device in the same environment.EMC testing is typically broken down into two categories: Electromagnetic Compatibility (EMC) is the ability of an electronic device to exist in an electromagnetic environment without causing interference to or being interfered with by other electronic devices within that environment. ![]()
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