Wondering how to connect and set up your FireFly® high-voltage probe for accurate, interference-free measurements? In this guide, we clearly break down the connections between the floating probe head, grounded interface box, fiber-optic isolation cable, oscilloscope, and power supply—ensuring your FireFly® system performs at its best.

Achieving accurate, high-bandwidth differential measurements in high-voltage GaN and SiC applications can be daunting—but it doesn’t have to be. Discover how PMK’s groundbreaking FireFly® optically isolated probes, combined with standard MMCX and square-pin connectors, enable precise, interference-free test points on both new and existing boards. In this post, we guide you step-by-step through installing these robust connectors, helping you unlock the full potential of your FireFly® measurement system.