EMI testing

Planning an EMC test chamber? Electromagnetic compatibility (EMC) test chambers are specialized facilities for evaluating electronic devices against electromagnetic interference. This guide explores essential design considerations—including RF absorber selection, shielding materials, and chamber configuration—to help engineers create accurate, compliant testing environments that meet industry standards.

When testing EMI performance, substituting real loads with "equivalent" resistors can mislead you by up to 20dB—enough to turn a passing design into a costly failure. This practical guide demonstrates why fans, motors, and other non-linear loads behave dramatically differently than resistors, and why authentic testing matters for accurate results.