Translate The Website (Starts on Home Page)

Follow Us On LinkedIn
RA Mayes EMC Test
PayPal, Visa, MasterCard, American Express, Discover Cards Accepted
USA Flag and Cannon EMC Test Systems   R A Mayes Logo and Home Page Call Nationwide 1-800-742-9447

 

MIL-STD-461G Testing

DOD Symbol

 

REQUIREMENTS FOR THE CONTROL OF
ELECTROMAGNETIC INTERFERENCE
CHARACTERISTICS OF SUBSYSTEMS AND
EQUIPMENT

 

MIL-STD-461G

Approved for use by all United States Departments

Agencies of the Department of Defense

Standard (.pdf)

MIL-STD-461G - Emission and Susceptibility Standards

MIL-STD-461G

Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment.

MIL-STD-462D

Measurement of Radio Frequency Spectrum Characteristics, Superseded by MIL-STD-461E

MIL-STD-464

Electromagnetic Environmental Effects Requirements for Systems.

MIL-STD-469

Radar Engineering Interface Requirements, Electromagnetic Compatibility Metric

MIL-STD-1542B

Electromagnetic Compatibility and Grounding Requirements for Space System Facilities

 

MIL-STD-461G - 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

CS115

Conducted Susceptibility

Ground - Bulk Cable Injection

Impulse Excitation

CS116

Conducted Susceptibility

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 Susceptibility

Magnetic Field

30Hz - 100kHz

RS103

Radiated Susceptibility

Electric Field

10kHz - 40GHz

RS105

Radiated Susceptibility

Transient Electromagnetic Field

Pulsed EMI - EMP

 

Requirement Matrix

Application

CE
101

CE
102

CE
106

CS
101

CS
103

CS
104

CS
105

CS
109

CS
114

CS
115

CS
116

RE
101

RE
102

RE
103

RS
101

RS
103

RS
105

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

a. Measurement Receivers
 

b. Current probes
 

c. Signal Generator
 

d. Data recording device
 

e. Oscilloscope
 

f.  Resistor (R)
 

g. LISNs

a. Measurement Receiver
 
b. Data recording device
 
c. Signal Generator
 
d. Attenuator, 20 dB, 50 ohm
 
e. Oscilloscope
 
f.  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.
 

g. Data recording device

 

CS101 Test Equipment

CS103 Test Equipment

CS104 Test Equipment

a. Signal Generator
 

b. Power Amplifier
 

c. Oscilloscope
 

d. Coupling Transformer
 

e. Capacitor, 10 µF
 

f.  Isolation Transformer
 

g. Resistor, 0.5 ohm
 

h. LISNs

a. Measurement Receiver

  

b. Signal Generators (up to 3 ea)

  

c. Three Port Network (up to 3 ea)

  

d. Attenuators

  

e. Filters

  

See Appendix 50.8

a. Measurement Receiver

  

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

a. Measurement Receiver

  

b. Signal Generators (up to 2 ea)

  

c. Three Port Network (up to 2 ea)

  

d. Attenuators

  

e. Filters

 

See Appendix 50.10

 

a. Signal Generator

 
b. Amplifier (if required)
 

c. Isolation Transformers
 

d. Current Probe
 

e. Measurement Receiver
 

f.  Resistor, 0.5 ohm
 

g. Coupling Transformer

a. Measurement Receivers

 
b. Current injection probes (maximum insertion loss shown in Figure CS114-2, minimum
insertion loss is recommended, not required)
 

c. Current Probes
 

d. Calibration fixture: coaxial transmission line with 50 ohm characteristic impedance,
coaxial connections on both ends, and space for an injection probe around the center
conductor.
 

e. Directional Couplers
 

f.  Signal Generator
 

g. Plotter/Printer
 

h. Attenuators, 50 ohm
 

i.  Coaxial loads, 50 ohm
 

j.  Power Amplifiers

CS115 Test Equipment

CS116 Test Equipment

a. Pulse Generator, 50 ohm, charged line (coaxial)

 
b. Current Injection Probe
 

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,
coaxial connections on both ends, and space for an injection probe around the center
conductor.
 

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

 
b. Current injection probe
 

c. Oscilloscope, 50 ohm input impedance
 

d. Calibration fixture: Coaxial transmission line with 50 ohm characteristic impedance,
coaxial connections on both ends, and space for an injection probe around the center
conductor
 

e. Current probes
 

f.  Waveform recording device
 

g. Attenuators, 50 ohm
 

h. Measurement Receivers
 

i.  Power Amplifiers
 

j.  Coaxial loads, 50 ohm
 

k. Signal Generators
 

l.  Directional couplers

  

m. LISNs

 

 

RE101 Test Equipment

RE102 Test Equipment

RE103 Test Equipment

a. Measurement Receivers

 
b. Data recording device
 

c. Loop sensor having the following specifications:
(1) Diameter: 13.3 cm
(2) Number of turns: 36
(3) Wire: 7-41 Litz wire (7 strand, No. 41 AWG)
(4) Shielding: Electrostatic
(5) Correction factor: See manufacturer’s data for factors to convert measurement receiver readings to decibels above one picotesla (dBpT).
 

d. LISNs
 

e. Ohmmeter
 

f.  Signal Generator

a. Measurement Receivers

 
b. Data recording device
 

c. Antennas
(1) 10 kHz to 30 MHz, 104 cm rod with impedance matching network
(a) When the impedance matching network includes a preamplifier (active rod),observe the overload precautions in 4.3.7.3.
(b) Use a square counterpoise measuring at least 60 cm on a side.
(2) 30 MHz to 200 MHz, Biconical, 137 cm tip to tip
(3) 200 MHz to 1 GHz, Double ridge horn, 69.0 by 94.5 cm opening
(4) 1 GHz to 18 GHz, Double ridge horn, 24.2 by 13.6 cm opening
 

d. Signal Generator

  

e. Stub Radiator
 

f.  Capacitor, 10 pF

 
g. LISNs

a. Measurement Receiver

 
b. Attenuators, 50 ohm
 

c. Antennas
 

d. Rejection Networks
 

e. Signal Generators
 

f.  Power Monitor

 

RS101 Test Equipment

RS103 Test Equipment

RS105 Test Equipment

a. Signal source


b. Radiating loop having the following specifications:
(1) Diameter: 12 cm
(2) Number of turns: 20
(3) Wire: No. 12 insulated copper
(4) Magnetic flux density: 9.5x107 pT/ampere of applied current at a distance of 5 cm from the plane of the loop.
 

c. Loop sensor having the following specifications:
(1) Diameter: 4 cm
(2) Number of turns: 51
(3) Wire: 7-41 Litz wire (7 Strand, No. 41 AWG)
(4) Shielding: Electrostatic
(5) Correction Factor: See manufacturer’s data for factors to convert measurement receiver readings to decibels above one picotesla (dBpT).
 

d. Measurement Receiver or narrowband voltmeter
 

e. Current Probe
 

f.  LISNs

a. Signal Generators

 
b. RF Power Amplifiers Microwave Power Amplifiers
 

c. Receive Antennas
(1) 1 GHz to 10 GHz, double ridge horns
(2) 10 GHz to 40 GHz, other antennas as approved by the procuring activity
 

d. Transmit Antennas
 

e. Electric field sensors (physically small - electrically short)
 

f.  Measurement Receiver
 

g. Power Meter
 

h. Directional Coupler

  

i.  Attenuator
 

j.  Data recording device
 

k. LISNs

a. Transverse Electromagnetic (TEM) cell, parallel plate transmission line or equivalent

 
b. Transient pulse generator, mono-pulse output, plus and minus polarity
 

c. Storage oscilloscope, 500 MHz, single-shot bandwidth (minimum), variable sampling
rate up to 1gigasample per second (Gsa/s)
 

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

 


Copyright © 2001-2022  R. A. Mayes Company, Inc.
An Electro Mechanical Research and Development (EMRAD) Corporation, Company

See our Privacy Policy    All the data files on our website require Adobe Acrobat Reader!