The present invention is a remotely controlled, automated shielding effectiveness test system for hardening against the effects of high altitude electromagnetic pulses. The system monitors and reports the on-going effectiveness of an enclosure that shields electronic devices and communications systems from electromagnetic pulses. The system reports provide information to a user to determine whether corrective action is needed for the enclosure to ensure continued protection of the electronic devices and communications systems within the enclosure. The system comprises providing a high-altitude electromagnetic pulse (HEMP) enclosure enclosing at least an electronic device, and an electronic testing apparatus for testing effectiveness of HEMP shielding of the enclosure; and performing a shielding effectiveness test by the apparatus on the enclosure, comprising a first compression sub-test, a second environment sub-test, and a third final shielding effectiveness sub-test.

A test and measurement device measures an insertion loss of a material under test. The test and measurement device includes a reference device in contact with a first surface of a material under test, the reference device including a reflective component and an absorbing component. A testing device is in contact with a second surface of the material under test, opposite the first surface. The testing device includes a first transmitter to output a first signal at a predetermined frequency to the reflective component of the reference device through the material under test, a first receiver to receive a first reflected signal from the reflective component, a second transmitter output a second signal at the predetermined frequency to the absorbing component of the reference device through the material under test, and a second receiver to receive a second reflected signal from the material under test.

A related interference wave presentation device includes a class specifying processer circuitry configured to specify a class to which a reference interference wave, which is a referenced interference wave, belongs, using a learned model generated by machine learning of sample data including interference waves to specify a class to which an interference wave belongs based on feature values of the interference wave, a related interference wave information generator configured to retrieve the sample data based on the class to which the reference interference wave belongs and generate related interference wave information which is information about a related interference wave; and a presentation controller configured to perform control to present the related interference wave information in part or in whole.

A two-terminator RF adapter for background noise measurement in a test environment comprises a system test port comprising a system test port termination and a system test port connector to connect to a system under test; and a data acquisition port, comprising a data acquisition port termination and a data acquisition port connector to connect to a data acquisition system.

A measurement module receives a defined system topology and system component characteristics information for a system. The measurement module calculates an expected system impedance for the defined system topology. The measurement module collects one or more impedance measurements using a high frequency voltage stimulus. Finally, the measurement module compares the one or more impedance measurements with the expected system impedance to determine adequacy of protective grounding of the system.

A method and apparatus for testing shield continuity are provided. In the method and apparatus, a transmitter transmits a first signal in common mode over a plurality of conductors of a cable or cabling installation having a shield. The first signal is transmitted in the common mode at a first end of the plurality of conductors. A receiver receives a plurality of second signals representative of the first signal at a second end of the plurality of conductors, respectively, and outputs data representative of the plurality of second signals. A processor receives the data representative of the plurality of second signals, determines a common mode insertion loss for the cable or cabling installation based on the plurality of second signals, determines, based on the common mode insertion loss, whether the shield is continuous or discontinuous and outputs data representative of whether the shield is continuous or discontinuous.

A horn antenna configured for use in a radio frequency (RF) anechoic test chamber is provided. The horn antenna includes one or more conductive radiating elements. The horn antenna further includes an electromagnetic interference (EMI) suppressing material covering at least a portion of a surface of the one or more conductive radiating elements such that the EMI suppressing material at least partially suppresses a surface current associated with the surface of the one or more conductive radiating elements during a test operation.

A radio wave measurement method used in a transmitter and a receiver, includes transmitting a radio wave from the transmitter, receiving the radio wave by the receiver through a scatterer, measuring, a plurality of times, reception qualities of the radio waves received by the reception antenna of the main reception surface and received respectively by the reception antennas of the plurality of sub-reception surfaces while changing a position of the receiver, and determining a position of the receiver when the reception quality of the radio wave corresponding to the reception antenna of the main reception surface and the reception qualities of the radio waves corresponding to the plurality of sub-reception surfaces satisfy a predetermined condition as a measurement position used for derivation of a material constant of the scatterer.

The radio frequency (RF) probe socket is disclosed. The probe socket includes a conductive noise shielding body configured to accommodate the plurality of signal probes to be parallel with one another while exposing opposite ends thereof, and shield noise; upper and lower noise shielding walls configured to be extended from the noise shielding body to some areas between the exposed opposite ends of the plurality of signal probes; and upper and lower holding members configured to be arranged on top and bottom sides of the noise shielding body, support the exposed opposite ends of the plurality of signal probes, and comprise accommodating grooves accommodate the noise shielding walls, respectively. With this, the noise shielding wall extended from the shielding block makes a shield between the signal probe pins passing through the upper and lower holding member, thereby preventing crosstalk between the signal probe pins.

A test and measurement device measures an insertion loss of a material under test. The test and measurement device includes a reference device in contact with a first surface of a material under test, the reference device including a reflective component and an absorbing component. A testing device is in contact with a second surface of the material under test, opposite the first surface. The testing device includes a first transmitter to output a first signal at a predetermined frequency to the reflective component of the reference device through the material under test, a first receiver to receive a first reflected signal from the reflective component, a second transmitter output a second signal at the predetermined frequency to the absorbing component of the reference device through the material under test, and a second receiver to receive a second reflected signal from the material under test.