MIL-STD-464 details the US military’s requirements for electromagnetic environmental effects on the interfaces of sea, space, ground and airborne systems. To safeguard the operation and performance of these systems, each should be compatible with equipment within the system and related subsystems. MIL-STD-464 primarily consists of design requirements and verification methods necessary to prevent or resolve these electromagnetic compatibility issues. Throughout the standard, Data Item Descriptions (DID) are referenced to determine problem areas early on in system design, minimize risks going forward and document testing results.
The current version of MIL-STD-464 is MIL-STD-464C.
The following are brief summaries of the standard's requirements:
Margins should be offered based on system performance requirements, tolerances and uncertainties.
5.2 Intra-system electromagnetic compatibility (EMC)
The system should be electromagnetically compatible with its own components.
5.3 External RF EME
The system should be electromagnetically compatible with a specified external electromagnetic environment to the extent that operational performance standards are met.
5.4 High-power microwave (HPM) sources
The system should meet its own requirements after exposure to narrowband and wideband HPM environments.
The system should possess the appropriate resistance to both direct and indirect lightning effects.
5.6 Electromagnetic pulse (EMP)
The system should meet performance standards after exposure to the EMP environment.
5.7 Subsystems and equipment electromagnetic interference (EMI)
Individual components, equipment and subsystems must meet radiated immunity, radiated emissions, conducted immunity and conducted emissions test requirements.
5.8 Electrostatic charge control
The system should be able to both control and disperse electrostatic discharge (ESD) triggered by static effects, air flow, fluid flow, exhaust gas flow, personnel charging, launch vehicle charging and other causes.
5.9 Electromagnetic radiation hazards (EMRADHAZ)
The system should defend personnel, fuels and ordnance from electromagnetic radiation.
5.10 Life cycle, E3 hardness
System performance and EMC requirements of MIL-STD-464 should be met throughout the rated lifecycle of the system, including repair, maintenance, surveillance and corrosion control.
5.11 Electrical bonding
The system should include the relevant bonding to meet electromagnetic compatibility standards set forth in MIL-STD-464.
5.12 External grounds
The system and its related subsystems should offer external grounding provisions to help with controlling current flow and static .
Distribution of materials should not lead to compromising national security information.
5.14 System radiated emissions
The system should control RF fields that are needed to operate with other, co-located systems and limit the capability of threats to locate and track the system.
5.15 EM spectrum supportability
Systems dependent on spectrums should adhere to DoD, national and international spectrum regulations.
Products Used in Testing:
Haefely ONYX 30 kV Electrostatic Discharge ESD Simulator
The Haefely ONYX 30 kV Electrostatic Discharge ESD Simulator is an ergonomic ESD gun without an additional base control unit that can be battery or mains operated. An easy to use touch screen, ergonomic design, modular RC units...
M Precision Laboratories
M Precision Laboratories MZ-15/EC MiniZap ESD Simulator
The M Precision Laboratories MiniZap MZ-15/EC ESD Simulator operates over a frequency range of .5 to 15 kV in air discharge mode and can be used for direct, indirect and diagnostic ESD testing. With the MiniZap, manufacturers...
Teseq INA Custom Discharge Networks
All models are used with the Teseq NSG-438
Discharge network, 150 pF/330 Ω, per: IEC 61000-4-2 (2008), ISO 10605 (2001), (2008)
Discharge network, 150 pF/2 kΩ, per: ISO...
Teseq NSG 438 30 kV ESD Gun Simulator System
The NSG 438 30 kV ESD Gun by Schaffner / Teseq fulfills the requirements of all known ESD standards. The basic model is type approved and calibrated in conformity with IEC 61000-4-2. By adding appropriate network modules, other...