Why should EMI/EMC testing be done at a certified Test Lab?
A. In industry, it has been common for EMI/EMC tests to be conducted in Open Area Test Sites (OATS) and other non-shielded manufacturer facilities. However, due to the increased use of electronic office equipment and wide-area communication systems such as cellular phones, pagers, and high powered radio signal sources, it has become more difficult to conduct accurate emissions tests using OATS. The increased ambient emissions from the external sources preclude accurate results in many of these test environments. Indoor shielded chambers, such as a certified Test Facility or Lab, provide a good environment for EMI/EMC testing because they attenuate ambient emissions from the surrounding area.
