Having different parts of the circuit emit at different frequencies, keeping noisy circuits separated from the design and operating at lower signal levels. Filters can help power cables and low frequency signal lines. Shielding can also be used in conjunction with filtering to act as a barrier.

Reducing susceptibility, also known as susceptibility hardening, can be done through additional measures such as designing for operation at higher signal levels, transient absorbers and error correction techniques in digital circuitry. This could be achieved through capacitors and inductors, which help protect against noise and reduce the ringing waveforms that can be generated by EMI.

EMC issues can come from two sources, internal and external. Internal EMC issues come from within a device or its power supply, while external issues come from another device, ambient radio waves or other electrical interference. EMC is governed by regulatory standards and compliance requirements to ensure devices can function without error. These regulations primarily impact the design of the board layout, filters, inductors and other relevant parts of a device. Various EMC Regulations mandate a limit of how much noise equipment is allowed to emit over power lines and over the air. Equipment must comply with these limits to be allowed to sell in automotive industry applications. 

Conducted emissions are measured on the equipment, power cord and radiated emissions are measured in the air around the equipment using an antenna. Through understanding EMC design, you can minimize unwanted emissions.

ATS Group, thanks to an efficient Network of ISO 17025 accredited test laboratories, or qualified by ATS, is able to perform Electromagnetic Compatibility tests of Vehicles, Components and Technical Units, in compliance with the main National and International Standards or in accordance with specific requests from customers.