The design, development, and troubleshooting process of producing an EMC compliant device is complex and potentially expensive. There are stringent EMC/EMI Compliance standards for commercial, industrial, military, and space applications. In order to avoid costly and time-consuming redesigns after EMC Compliance testing failure, many electronics manufacturers perform EMC Precompliance. The equipment for EMC Precompliance and knowledge regarding how to implement the insights derived from that equipment pose challenges. Fortunately, real-time spectrum analyzers (RTSAs) equipped with EMC Precompliance software tools can provide a significant edge in precompliance testing that can limit costly redesigns and speed up time to market.