| MIL-STD-461G Testing | 
| 
			 | 
 REQUIREMENTS FOR THE CONTROL OF 
 | MIL-STD-461G Approved for use by all United States Departments Agencies of the Department of Defense | 
| Standard (.pdf) | MIL-STD-461G Testing for Emissions & Immunity | 
| Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment. | |
| Measurement of Radio Frequency Spectrum Characteristics, Superseded by MIL-STD-461E | |
| Electromagnetic Environmental Effects Requirements for Systems. | |
| Radar Engineering Interface Requirements, Electromagnetic Compatibility Metric | |
| Electromagnetic Compatibility and Grounding Requirements for Space System Facilities | 
| MIL-STD-461G - Emission & Immunity 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 Immunity | Power Leads | 30Hz - 150kHz | 
| CS103 | Conducted Immunity | Antenna Port | Intermodulation, 15kHz - 10GHz | 
| CS104 | Conducted Immunity | Antenna Port | Signal Rejection, 30Hz - 20GHz | 
| CS105 | Conducted Immunity | Antenna Port | Cross-modulation, 30Hz - 20GHz | 
| CS109 | Conducted Immunity | Structure Current | 60Hz - 100kHz | 
| CS114 | Conducted Immunity | Bulk Cable Injection | 10kHz - 400MHz | 
| CS115 | Conducted Immunity | Ground - Bulk Cable Injection | Impulse Excitation | 
| CS116 | Conducted Immunity | Power & I/O | Damped Sinusoid Transients, 10kHz - 100MHz | 
| 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 Immunity | Magnetic Field | 30Hz - 100kHz | 
| RS103 | Radiated Immunity | Electric Field | 10kHz - 40GHz | 
| RS105 | Radiated Immunity | Transient Electromagnetic Field | Pulsed EMI - EMP | 
| Requirement Matrix | |||||||||||||||||
| Application | CE | CE | CE | CS | CS | CS | CS | CS | CS | CS | CS | RE | RE | RE | RS | RS | RS | 
| Surface Ships | A | A | L | A | S | S | S | A | A | A | A | L | A | A | L | ||
| Submarines | A | A | L | A | S | S | S | L | A | A | A | A | L | A | A | L | |
| Aircraft, Army | A | A | L | A | S | S | S | A | A | L | A | A | L | A | A | L | |
| Aircraft, Navy | L | A | L | A | S | S | S | A | A | A | L | A | L | L | A | L | |
| Aircraft, Air Force | A | L | A | S | S | S | A | A | A | A | L | A | |||||
| Space Systems | A | L | A | S | S | S | A | A | A | A | L | A | |||||
| Ground, Army | A | L | A | S | S | S | A | L | L | A | L | L | A | ||||
| Ground, Navy | A | L | A | S | S | S | A | A | A | L | L | A | L | ||||
| Ground, Air Force | A | L | A | S | S | S | A | L | A | A | L | A | |||||
| A = Applicable | L = Limited applicability | S = Specified in procurement | Blank = Not Applicable | 
Test Equipment Required
(In most cases a MIL-STD-461G Semi-anechoic Chamber is required)
| CE101 Test Equipment | CE102 Test Equipment | CE106 Test Equipment | 
| b. Current probes e. Oscilloscope f.  Resistor (R) g. LISNs | a. 
	Measurement 
	Receiver | b. Attenuators, 50 ohm c. Rejection Networks 
 
	d. 
    Directional Couplers e. Dummy Loads, 50 ohm f.  Signal Generators. For amplifier testing, a signal generator is 
    required to drive the
    amplifier that provides the modulation used in the intended application and 
    that has
    spurious and harmonic outputs that are down at least 6 dB greater than the 
    applicable
    limit. | 
| CS101 Test Equipment | CS103 Test Equipment | CS104 Test Equipment | 
| c. Oscilloscope d. Coupling Transformer e. Capacitor, 10 pF f.  Isolation Transformer g. Resistor, 0.5 ohm h. LISNs | 
 b. Signal Generators (up to 3 ea) 
 c. Three Port Network (up to 3 ea) 
 d. Attenuators 
 e. Filters 
 See Appendix 50.8 | 
 b. Signal Generators (up to 2 ea) 
 c. Three Port Network (up to 2 ea) 
 d. Attenuators 
 e. Filters 
 See Appendix 50.9 
 | 
| CS105 Test Equipment | CS109 Test Equipment | CS114 Test Equipment | 
| 
 b. Signal Generators (up to 2 ea) 
 c. Three Port Network (up to 2 ea) 
 d. Attenuators 
 e. Filters See Appendix 50.10 
 | 
	c. Isolation Transformers 
	d. Current Probe 
	e. Measurement Receiver 
	f.  Resistor, 0.5 ohm g. Coupling Transformer | 
	  
	c. Current Probes 
	d. Calibration fixture: coaxial transmission line with 50 ohm characteristic 
    impedance, 
	e. Directional Couplers 
	g. Plotter/Printer 
	h. Attenuators, 50 ohm 
	i.  Coaxial loads, 50 ohm | 
| CS115 Test Equipment | CS116 Test Equipment | |
| a. Pulse Generator, 50 ohm, charged line (coaxial) 
	  
	c. Drive cable, 50 ohm, 2 meters, 0.5 dB or less insertion loss at 500 MHz 
	d. Current Probe 
	e. Calibration fixture: coaxial transmission line with 50 ohm characteristic 
    impedance, 
	f.  Oscilloscope, 50 ohm input impedance 
	g. Attenuators, 50 ohm 
	h. Coaxial loads, 50 ohm i. LISNs | a. Damped sinusoid transient generator, 100 ohm output impedance   c. Oscilloscope, 50 ohm input impedance d. Calibration fixture: Coaxial transmission line with 50 ohm characteristic 
    impedance, e. Current probes f.  Waveform recording device g. Attenuators, 50 ohm j.  Coaxial loads, 50 ohm l. Directional couplers 
 m. LISNs | 
 | 
| RE101 Test Equipment | RE102 Test Equipment | RE103 Test Equipment | 
| 
	c. Loop sensor having the following specifications: 
	d. LISNs 
	e. Ohmmeter | c. Antennas 
 
	e. 
    Stub Radiator f. Capacitor, 10 pF 
	  | 
	  
	c. Antennas 
	d. Rejection Networks f. Power Monitor | 
| RS101 Test Equipment | RS103 Test Equipment | RS105 Test Equipment | 
| a. Signal source 
	 
	c. Loop sensor having the following specifications: 
	d. Measurement 
	Receiver or narrowband voltmeter 
	e. Current Probe f. LISNs |   c. Receive Antennas d. Transmit Antennas e. Electric field sensors (physically small - electrically short) g. Power Meter h. Directional Coupler 
 
	i.  
    Attenuator k. LISNs | a. Transverse Electromagnetic (TEM) cell, parallel plate transmission line or equivalent 
	  
	c. Storage oscilloscope, 500 MHz, single-shot bandwidth (minimum), variable 
    sampling 
	d. Terminal protection devices 
	e. High-voltage probe, 1 GHz bandwidth (minimum) 
	f.  B-dot sensor probe 
	g. D-dot sensor probe 
	h. LISNs i. Integrator, time constant ten times the overall pulse width | 
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