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MIL-STD-461G: Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment

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Advanced Test Equipment Rentals provides application support for all of MIL-STD-461 testing. We work with manufacturers like Solar, HV Technologies/EMC Partner and Agilent to provide labs custom solutions for meeting any portion of MIL-STD-461 testing.

 

PDFDownload MIL-STD-461



Background of MIL-STD-461

 

In 1960 [7] the US Department of Defense (DoD) enacted a comprehensive Defense Radio Frequency Compatibility Program (later renamed Electromagnetic Compatibility Program) that focused the Military Services R&D programs "to provide a means whereby electromagnetic compatibility should be 'built into' military communications-electronics equipment in the research and development stage". In 1966, EMC personnel of the three military departments jointly drafted standards addressing the interference reduction needs of the entire Department of Defense. That effort culminated in 1967 in the issuance of Military Standards 461, 462 and 463.
 

As a result, approximately 20 basic and subsidiary specifications were superseded. The 461 document focused on requirements and the 462 standard prescribed measurement methodology. Definitions and acronyms were contained in 463.Considerable revision was required and MIL-STD-461A was issued in August 1968. MIL-STD-461 was accepted by the joint services and was also used by many other countries. Eventually, the different military agencies (Army, Air Force, and Navy) found many items to their dissatisfaction, and thus many revisions were issued by each of the three services until 1989. The most noted difference was the "Pink Copy" issued by the Army.

MIL-STD 461 also takes care of High Intensity Radiated Fields (HIRF) testing for equipment for almost all military systems by increased levels for the radiation susceptibility test and also the “Bulk Current Injection”-test.
 

MIL-STD-461E - Emission and Susceptibility Requirements

Requirement Type of Test Description Frequency Range
CE101 Conducted Emissions Power Leads 30Hz - 10kHz
CE102 Conducted Emissions Power Leads 10kHz - 10MHz
CE106 Conducted Emissions Antenna Terminal 10kHz - 40GHz
CS101 Conducted Susceptibility Power Leads 30Hz - 150kHz
CS103 Conducted Susceptibility Antenna Port Intermodulation, 15kHz - 10GHz
CS104 Conducted Susceptibility Antenna Port Signal Rejection, 30Hz - 20GHz
CS105 Conducted Susceptibility Antenna Port Cross-modulation, 30Hz - 20GHz
CS109 Conducted Susceptibility Structure Current 60Hz - 100kHz
CS114 Conducted Susceptibility Bulk Cable Injection 10kHz - 400MHz
CE105 Conducted Susceptibility Ground - Bulk Cable Injection Impulse Excitation
CS116 Conducted Susceptibility Power & I/O Damped Sinusoid Transients, 10kHz - 100MHz
CS117 Conducted Susceptibility Power & I/O Lightning Induced Transients
CS118 Conducted Susceptibility Electrical Subsystems &
Man-Machine Interface
Personnel Borne Electrostatic Discharge
RE101 Radiated Emissions Magnetic Field 30Hz - 100kHz
RE102 Radiated Emissions Electric Field 10kHz - 18GHz
RE103 Radiated Emissions Antenna Spurious & Harmonic Outputs 10kHz - 40GHz
RS101 Radiated Susceptibility Magnetic Field 30Hz - 100kHz
RS103 Radiated Susceptibility Electric Field 10kHz - 40GHz
RS105 Radiated Susceptibility Transient Electromagnetic Field Pulsed EMI - EMP

 

Requirement Matrix

Equipment CE101 CE102 CE106 CS101 CS103 CS104 CS105 CS109 CS114
Surface Ships A A L A S L S L A
Submarines A A L A S L S L A
Aircraft, Army A A L A S S S   A
Aircraft, Navy L A L A S S S   A
Aircraft, Air Force   A L A S S S   A
Space Systems   A L A S S S   A
Ground, Army   A L A S S S   A
Ground, Navy   A L A S S S   A
Ground, Air Force   A L A S S S   A
A = Applicable L = Limited applicability S = Specified in procurement Blank = Not Applicable

 

 

Requirement Matrix

Equipment CS115 CS116 CS117 CS118 RE101 RE102 RE103 RS101 RS103 RS105
Surface Ships S A L S A A L L A L
Submarines S L S S A A L L A L
Aircraft, Army A A L A A A L A A L
Aircraft, Navy A A L A L A L L A L
Aircraft, Air Force A A L A   A L   A  
Space Systems A A L     A L   A  
Ground, Army A A S A   A L L A  
Ground, Navy A A S A   A L L A L
Ground, Air Force A A   A   A L   A  
A = Applicable L = Limited applicability S = Specified in procurement Blank = Not Applicable