The F-230509-1008-1 from Fischer Custom Communications is a Bulk Current Injection (BCI) probe that operates from 10 MHz to 400 MHz. It has an inner diameter of 65 mm and an outer diameter of 153 mm, with a height of 100 mm. This probe can handle an input power of  up to 1000 watts and supports secondary power currents from DC 400 Hz. It manages up to 2000 amps in common and 1000 amps in differential mode. This is compatible with the F-230509-1008-2 calibration fixture for precise measurement and testing.