Montigny-le-Bretonneux, 10 November 2026
Previously outsourced, the RS105 test under MIL-STD-461 and its NATO equivalent, the NRS03 under AECTP-500, are now carried out by the Emitech Group’s teams in Montigny-le-Bretonneux (Yvelines). This new facility extends the group’s offering, which now covers the full range of MIL-STD-461H tests.
Installed on surface vessels, aircraft or other military platforms, a great deal of equipment is directly exposed to external electromagnetic fields, or housed in structures with minimal shielding. Where the programme specifies an EMP requirement, this equipment must demonstrate that it remains operational when subjected to a very high-amplitude electromagnetic pulse, typically representative of the fast component of a nuclear electromagnetic pulse (NEMP).
The RS105 test replicates this stress in the laboratory: a pulse reaching a peak electric field of 50,000 V/m, with a rise time of around 2 ns and a duration of about 23 ns. The aim is to verify that the equipment continues to operate normally, whatever its orientation relative to the wave.
“This new facility adds another string to our bow: RS105 was the last MIL-STD-461H test that we did not carry out ourselves. Our customers no longer need to split their testing programme across several laboratories: they can have their equipment qualified end-to-end at our facility. We also wanted a modular setup so that we could deploy it wherever the need arises,” explains Julien Floch, EMC, Electrical and Lightning Test Engineer at the Emitech Group.
A demountable test facility
The system combines an 80 kV high-voltage pulse generator, a 6-metre parallel-plate transmission line (stripline) and a measurement chain capable of capturing pulses lasting a few nanoseconds at very high field strengths.
It takes two hours to set up and one hour to dismantle. It is used in the very large shielded chamber at the Montigny-le-Bretonneux site and can be deployed in other shielded chambers of suitable dimensions. The test is offered as a two-day package, including installation and dismantling.
The full MIL-STD-461H scope with a single point of contact
Until now, the Emitech Group had to refer its clients to an external laboratory for this test, with no control over lead times or availability. With the RS105, it now covers all MIL-STD-461H tests and strengthens its AECTP-500 coverage. Defence manufacturers can therefore carry out all their MIL-STD-461H testing in France, through a single point of contact.
The Emitech Group employs 680 staff across 18 sites and forecasts a turnover of 78.1 million euros in 2026. This new facility is part of the group’s accelerating investment in its test capabilities and confirms its ability to support clients with the most demanding qualifications in the defence sector.
Enquiries regarding feasibility (equipment dimensions, required field strength, installation configuration, operating criteria) can now be addressed to Julien Floch (j.floch@emitech-group.com).
