Current Probe Fixture CPF-631

  • Current Probe Fixture Current Probe Fixture


Most Bulk Current Injection Test Procedures require the use of current probe calibration fixtures.


  • 400 MHz to 1.5 GHz
  • Individually Calibrated
  • Rugged Construction
  • Three Year Warranty

CAGE Code: 54656
Schedule B: 8529.10.9000

Product Details

Injection Probe calibration fixtures are a part of the test equipment required by most of the Bulk current Injection Test Procedure Specifications. The Calibration Fixture allows the user to quickly and easily calibrate the injection probe prior to performing the compliance testing. It exceeds DO-160, Section 20 VSWR fixture requirements for stand-alone injection probe calibration fixture.

The test fixture is composed of an electrically short section of trough transmission line. The short section permits the measurement of current in the center conductor of the line, while the current probe is clamped around the center conductor. The fixture's output terminal is terminated in a 50 ohm receiver, spectrum analyzer or RF voltmeter. A measurement of the voltage developed by this RF voltmeter permits the calculation of current flowing in the center conductor. The trough is large enough to permit the current probe to be clamped around the center conductor, with the outer conductor of the trough extending around the current probe's outer shield.

Due to variable circuit impedances or resonances in cables and cable looms, the calibration fixture is used to establish the forward power into the injection probe needed to develop the specified currents in the system under test.


Frequency Range: 400 MHz - 1.5 GHz
Impedance: 50 ohm
VSWR: 2.0:1
Connector: N-Type, female
Physical Dimensions:
Inside Height: 4.72"
Inside Width: 2.75"
Min. Probe ID: 1.25"
Height: 5.72"
Width: 10.25"
Weight: 10.5 lbs.

Typical Data


Additional Resources


Operation Manual

A Basic Bulk Current Injection Test Method

Shipping Information:
Carton size: 13" x 13" x 11"
Shipping Weight: 15 lbs.
* These are approximate dimensions and will vary depending on other items ordered.

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