MIL-STD 461

Why a Certified Military-grade Computer/ Server is Crucial for Ground Vehicles, Maritime Vessels, and Aircraft Deployment

The main reasons are as follows:

Reliability in Extreme Environments
Protection from Electromagnetic Interference (EMI)
Data Security & Encryption
Real-Time Processing
Redundancy and Fail-Safes
Long Lifespan & Support
Resistance to Physical Damage
Interoperability
Mission Continuity

MIL-STD-461 is a military standard that establishes the control of electromagnetic interference (EMI) emissions and susceptibility characteristics of electronic, electrical & electromechanical equipment and subsystems for military equipment.

EMI encompasses any undesired signals, “noise”, generated by electronic equipment. Keeping EMI under control is crucial for military applications, because if it’s out of control, the military will be detected by the enemy and it might cause a great loss. To design a product that meets strict requirements, engineers should possess extensive knowledge of both electrical and mechanical design to avoid unintentional generation, propagation and reception of electromagnetic energy, which may cause unwanted effects, for example, physical damage in operational equipment.

BlockDiagram

Why EMI Control Matters in Military Computers and Servers

Military platforms like aircraft, ground vehicles, and naval vessels are packed with sensitive electronics — radar, communication, navigation, weapons systems. EMI can cause:

Signal collision
System malfunctions
Mission failure
Safety hazards

Overall Protection Benefits

System Integrity: Ensures equipment functions as designed, free from signal collision, for secure and uninterrupted performance.

Interoperability: Enables multiple systems to operate in harmony without cross-interference, ensuring efficient coordination and communication across platforms.

Stealth & Security: Reduces EM emissions to minimize detection risks and enhance operational secrecy against enemy SIGINT or EW threats.

Survivability in EM Warfare: With RS103 compliance, systems can resist hostile jamming and RF attacks, ensuring reliable performance in high-threat environments.

Test	Category	What It Measures	How It Protects Military Assets
CE102	Conducted Emissions (Power Leads)	Measures RF energy (10 kHz – 10 MHz) emitted through power lines	- Prevents electrical noise from interfering with nearby equipment via power systems - Ensures quiet operation in shared power environments like aircraft or armored vehicles
RE102	Radiated Emissions	Measures radiated RF signals from equipment (10 kHz – 18 GHz)	- Prevents unintentional radiation from interfering with nearby sensitive equipment (e.g., sensors, comms) - Reduces risk of electronic detection by adversaries (important for stealth and SIGINT protection)
RS103	Radiated Susceptibility	Assesses how well equipment withstands external RF energy (2 MHz – 40 GHz)	- Ensures systems can operate reliably in EM-intense environments (e.g., radar, jammers) - Prevents mission-critical systems from being disabled or degraded by external sources

In short, CE102, RE102, and RS103 are essential to maintaining operational readiness, survivability, and mission assurance in the electromagnetic battlefield.

Standard	CE102		RE102		RS103
Test Type	Conducted Emissions , Power Leads Test		Radiated Emissions, Electric Field Test		Radiated Susceptibility, Electric Field Test
Frequency Range	10KHz - 10MHz	10KHz -30MHz	2MHz - 18GHz	10Hz - 18GHz	80MHz - 3GHz	1.5MHz - 5GHz
HORUS200		V		V		V
SR800		V		V		V
SR800-D21A20	V		V
>AV800	V		V
AV800-D27		V		V
AV600-RH-A45	V				V