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MIL-STD 461 (RS-105)

½ m EUT test system

Part Number: RS105-0.5

APELC supports the EMI/EMC testing community with a lightweight, portable test electromagnetic pulse (EMP) simulator that has an array of extra features convenient in the field. The system uses APELC’s compact Marx Generator technology to generate a pulse in accordance with MIL-STD 461, test procedure RS-105.

The pulse propagates from the source (Marx Generator), down a tapered transmission line, and into a parallel plate test volume. In this region, the electronic equipment under test (EUT) can be subjected to field strengths as high as 55 kV/m and as low as 5 kV/m, in the form of a 1.8 – 2.8 ns rise-time, and 23 (+/- 5) ns pulse. The remaining energy in the system is dissipated into a matched load.

Constructed using lightweight materials and a novel rod geometry, the Portable RS-105 Vertical EMP Simulator allows for homogeneous fields and stringent adherence to the MIL-STD in a lightweight, portable package.

This system is easy to ship and set up at different locations, with the typical setup time being approximately 1 hour. The system is free-standing, so anchoring is not needed.

The system is powered from standard 120 VAC, 10 Amp service and uses pressurized, dry breathable air for high voltage insulation.


The Portable RS-105 Vertical EMP Simulator can be transported in a 10’ x 4’ x 5’ crate and assembled with simple tools in less than 2 hours. Testing equipment that fits in the 0.5m EUT volume, the system can also test in multiple locations or on equipment with restricted transport access.

  • Lightweight and portable makes for easy shipping to different locations
  • Assembled with simple tools in ~1 hour
  • Convenient testing among multiple locations or on equipment with restricted transport access
  • Free-standing system (no anchor needed)
  • Maximum EUT height: 0.5 m
  • Exceeds MIL-STD 461G (RS-105) requirements
  • Pulse rise-time (10% – 90%): 1.8 – 2.8 ns
  • Pulse-width (FWHM): 18 – 28 ns
  • Peak electric field strength: 5 – 55 kV/m
  • Transported in a 10’ x 4’ x 5’ crate


The following items are included with the Portable RS-105 Vertical EMP Simulator:

  • RS-105 test system, including pulsed power and guided wave structure
  • Compressed dry-air tank and regulator
  • Voltage reference probe

The following items are required for proper implementation of the Portable RS-105 Vertical EMP Simulator:

  • Ability to fill the dry-air tank either through a gas supplier or SCUBA shop
  • A facility to use the RS-105 system that has no conducting boundary closer than 2X the width of the system
  • 120 VAC, 10 Amp service
Parameter Description Value Unit
Ve Erected voltage range 16 – 80 kV
Ce Erected capacitance 313 pF
Vch Operating charge voltage range 8 – 40 kV
Pres. Operating pressure range Atm – 150 psi
Z Impedance 100 Ohms
L Length of structure 5.56 m
W Width of structure 5.4 m
H Maximum height of structure 2.3 m
L Length 0.5 m
W Width 0.5 m
H Height 0.5 m
Emax Maximum electric field 60 kV/m
Emin Minimum electric field 5 kV/m


Please exercise caution when operating near electronic equipment other than the EUT. Unhardened electronics can be harmed by the EMP generated by the RS-105 test system. Take precautions to isolate or protect sensitive electronics from exposure to high-EMI environments. It is not recommended to take personal electronics devices such as phones near the system when in use.

Persons with personal electronics or medical devices should not operate the Vertical EMP Simulator, nor should they be proximate to the operation of this system.


APELC’s selection of add-on features for high-voltage components are designed to increase safety and usability.


Rugged high-voltage quick disconnect cable connectors for voltages up to 700kV.


Integrated high-speed current diagnostics in high-voltage quick disconnects.


Software to increase user safety and reduce time spent in testing.


Termination and monitoring capability for a high-voltage, high-power pulse without radiating equipment.


Providing the trigger pulse to a Marx generator through a pulse forming circuit.


Fully integrated power and control units to deliver a turn-key package for our pulsed power systems.


For more information or to discuss a custom or turnkey system, complete the form below and we will contact you within 24 hours.

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