Whitepaper
Electromagnetic Interference Testing Using Real-Time Scan Measurement
This application note details the use of Keysight’s N9048B PXE EMI test receiver with its new Real-Time Scan (RTSC) measurement feature for improved EMC testing. Traditional time-domain scans suffer from gaps between frequency acquisitions due to preselector filter switching, potentially missing intermittent signals. RTSC overcomes this by utilizing a 350 MHz FFT bandwidth for gapless signal capture and simultaneous display of frequency, time, and spectrogram data with up to three detectors. This enables faster troubleshooting, historical data access via the SCPI protocol (up to 12,000 time slices), and features like a built-in strip chart & intuitive multi-domain visualization for both broadband and narrowband signals – improving debugging efficiency in increasingly complex wireless environments driven by 5G, IoT, and autonomous vehicles.