RS105 NEMP Test System




The MIL-STD461, respectively IEC 61000-4-25, is applicable to equipment or subsystems located outside a shielded facility. The RS105 NEMP test method describes a transient electromagnetic pulse of up to 50 kV/m, double exponential wave with a rise time in the nanosecond range, that is applied to the equipment under test (EUT) at least 5 times. The EUT should not exhibit any signs of performance degradation.

Montena designs and manufactures bounded wave NEMP (Nuclear Electromagnetic Pulse) / HEMP (high altitude NEMP) simulators for radiated susceptibility tests. Mobile systems for indoor use and fixed simulators for outdoor installations have been developed and marketed since 1998.

The simulator setup mainly consists of a high voltage pulse generator connected to a transmission line ended with distributed resistors. A voltage monitor and various field sensors are used to measure the generator output and the electric and magnetic field strengths. The resulting signals are transmitted via fibre optics or coaxial cables to the oscilloscope.

Find more information on Pulsed Measurements.

About Montena technology

Montena is a Swiss company specializing in the generation and measurement of fast voltage, current, and electromagnetic field transients. Since 1978, Montena has designed, manufactured, and supplied systems and test equipment to assess the immunity of electrical and electronic equipment to transient High-Powered Electromagnetics (HPEM), and for many other applications. For the North American market and customers, Montena has a strong partner, HV TECHNOLOGIES, Inc. in Manassas, Virginia that is fully trained and equipped to locally support this product line from sales and applications to the final delivery, commissioning and training. Montena generators and measurement systems are in use in more than 25 countries worldwide. The broad experience of our engineers enables us to develop tailored solutions based on a comprehensive range of standard products adapted to our customers’ specific requirements. Montena is committed to delivering high-quality, reliable products compliant with the most stringent requirements.

RS105 NEMP Test System


  • Proven performance with many systems installed worldwide
  • Triangular transmission line design with distributed load resistors for bounded wave propagation with minimal reflexion
  • Indoor transportable small test systems; outdoor permanent large test installations
  • Automated management and test report generation for simple measurement
  • Low risk of operator’s handling mistakes
  • Other pulse shapes according to other standards such as IEC or national standards on request
  • Expertise in the refurbishment of existing old test installations.

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