Teseq NSG 4070C-80 Test System for Conducted and Radiated Immunity

MIL-STD-461G CS114 applies from 10 kHz to 200 MHz for all interconnecting cables, including power cables. For EUTs intended to be installed on ships or submarines, an additional common mode limit of 77 dBμA applies from 4 kHz to 1 MHz on complete power cables (highs and returns - common mode test). MIL-STD-461G CS114 does not apply to coaxial cables to antenna ports of antenna-connected receivers except for surface ships and submarines.  MIL-STD-461G CS114 is used to verify the ability of the EUT to withstand RF signals coupled onto EUT associated cabling.   Test Equipment The test equipment shall be as follows: Measurement receivers Current injection probes (maximum and recommended minimum insertion loss shown in Figure CS114-2) Current probes Calibration fixture: coaxial transmission line with 50 ohm characteristic impedance, coaxial connections on both ends, and space for an injection probe around the center conductor. Directional couplers Signal generators Plotter Attenuators, 50 ohm Coaxial loads, 50 ohm Power amplifiers k. LISNs   Procedures The test procedures shall be as follows: a. Turn on the measurement equipment and allow sufficient time for stabilization. b. Calibration. Perform the following procedures using the calibration setup. (1) Set the signal generator to 10 kHz, unmodulated. (2) Increase the applied signal until measurement receiver A indicates the current level specified in the applicable limit exists in the center conductor of the calibration fixture. (3) Record the "forward power" to the injection probe indicated on measurement receiver B. (4) Scan the frequency band from 10 kHz to 200 MHz and record the forward power needed to maintain the required current amplitude. c. Verification. With the probes still in the calibration setup, configure the verification of the test system using Figure CS114-4. Conduct a scan as though this

MIL-STD-461G is the military test standard that establishes requirements for the electromagnetic compatibility (EMC) of devices and systems created for and used by the United States Department of Defense (DoD). In the pages of MIL-STD-461G, a comprehensive set of test procedures are defined to fulfill the DoD’s electromagnetic emissions and susceptibility regulations. The test procedures are broken up into four groups: radiated emissions (RE), conducted emissions (CE), radiated susceptibility (RS) and conducted susceptibility (CS). Procedures are named with one of the two-letter abbreviations followed by a code; for example, RE103, a radiation emissions test procedure specific to antenna spurious and harmonic outputs.  Detecting rogue signals and electromagnetic interference is crucial to the military, as everything from a cellphone to a navigation component on a stealth jet produces an electromagnetic field and can potentially threaten safety, efficiency or secret communications. The DoD created an Electromagnetic Compatibility Program to address the growing concern that EMI was affecting military operations with the goal of integrating electromagnetic compatibility into defense industry R&D. Ever since, the three branches of the military have collaborated to produce updated and expanded versions, culmunating in the most recent edition of the standard: MIL-STD-461G. The changes made between MIL-STD-461F and MIL-STD-461G can be seen below. Major differences include the removal of CS106 and the addition of CS117 and CS118. View the differences between MIL-STD-461F and MIL-STD-461G.   Requirement Matrix Equipment CE101 CE102 CE106 CS101 CS103 CS104 CS105 CS109 CS114 Surface Ships A A L A S L S L A Submarines A A L A S L S L A Aircraft,