App Note - Differences Between EMI Test Receivers and Spectrum Analyzers
Overview - Precompliance Radiated Emissions Testing
A fully compliant EMI test receiver requires band pass filters and other RF components built into the analyzer to allow for full and accurate spectrum analysis as it sweeps to identify emission peaks while measuring.
A precompliant EMC/EMI spectrum analyzer does not have the hardware configured. But interal software provides basic data on an initial sweep, typically requiring a more narrow band, focused search to better identify the problem areas. Most of our customers are evaluating their product, known as precompliance EMC testing, to measure and identify potential problem areas.. However, there are occassions where you may not be able to identify the same problem areas your test lab did with a fully compliant EMI receiver.
