How are EMI tests performed?
EMI tests are performed using passive networks called LISNs, Line Impedance Stabilization Network, connected in series with the power lines to the equipment. The LISN establishes a consistent impedance to allow for repeatability of test results. Conducted emissions are measured via an RF connection to a port on the LISN. Radiated emissions may are measured using an antenna or current detecting probe.
EMI tests are performed using passive networks called LISNs, Line Impedance Stabilization Network, connected in series with the power lines to the equipment. The LISN establishes a consistent impedance to allow for repeatability of test results. Conducted emissions are typically measured via an RF connection to a port on the LISN, whereas radiated emissions may be measured using an antenna or current detecting probe.
