RF Current Probe, 27 mm Aperture

Frequency Range: 9 kHz to 230 MHz enables wideband RF current measurements for conducted emissions and immunity testing across commercial, military, and aerospace EMC standards.

Aperture (ID): 1.06 in (27 mm) allows clamping around installed wires or cable bundles without disconnecting connectors or dismantling harnesses.

Transfer Impedance: Nominal −11 dBΩ (0.28 Ω) supports accurate voltage-to-current conversion when used with 50-ohm spectrum analyzers or EMI receivers.

Meets CISPR 16-1-2 requirements for RF current monitoring probes used in formal EMC compliance measurements.

Used for conducted emissions measurements per CISPR 15, CISPR 25, and CISPR 32 on power and signal cables.

Supports RF current monitoring during IEC 61000-4-6 conducted immunity testing when bulk current injection methods are applied.

Used during MIL-STD-461 CS114 conducted susceptibility testing to monitor RF current flowing on cables while RF energy is injected using a bulk current injection (BCI) probe.

Provides real-time current verification to confirm that injected RF levels meet CS114 test requirements across the specified frequency range.

Installed on the EUT cable harness, separate from the injection probe, to measure actual RF current rather than relying solely on forward power readings.

Supports CS114 test-level calibration when used with the appropriate calibration fixture, ensuring repeatable and traceable current measurements.

Enables detection of over- or under-injection conditions caused by cable impedance changes, grounding variations, or setup inconsistencies.

Commonly used during pre-compliance and troubleshooting to identify sensitive cables before full CS114 qualification testing.

The split-core design allows placement on installed harnesses, which is critical for CS114 testing where cables must remain in their operational configuration.