The Tekbox TBCP5-150K400 RF Current Monitoring Probe is a highly effective tool for EMC measurements in high-power systems, particularly where conventional probes fall short.

Insertion loss is often treated as a simple datasheet value, but in real systems it strongly depends on source and load impedance. This article explains why off-the-shelf EMI filters can underperform—or even worsen EMC issues—when applied to variable speed drives and power converters.