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Standard

Upper Frequency Measurement Boundary for Evaluation of Shielding Effectiveness in Cylindrical Systems

2020-01-30

CURRENT

AIR1700A

This AIR points out that above a frequency called the “transition frequency,” variances associated with the shielding effectiveness measurements can become large. It includes the derivations to demonstrate this. This fact should be taken into account when designing shielding for use above the transition frequency.

Standard

UPPER FREQUENCY MEASUREMENT BOUNDARY FOR EVALUATION OF SHIELDING EFFECTIVENESS IN CYLINDRICAL SYSTEMS

1986-01-01

HISTORICAL

AIR1700

Standard

Test Procedure to Measure the R.F. Shielding Characteristics of E.M.I. Gaskets

2013-03-25

CURRENT

ARP1173A

Standard

Test Procedure to Measure the R.F. Shielding Characteristics of E.M.I. Gaskets

2004-08-18

HISTORICAL

ARP1173

Standard

Stripline Test Method to Characterize the Shielding Effectiveness of Conductive EMI Gaskets up to 40 GHz

2022-01-21

CURRENT

ARP6248

The purpose of this procedure is to establish a technique for reliably and repeatedly measuring the RF shielding characteristics of EMI conductive gasket materials and EMI conductive gaskets. Depending on the materials used for the construction of the measuring setup, the EMI conductive gaskets can be characterized against various joint surfaces. This standard will directly provide shielding effectiveness values up to 40 GHz, and will also be applicable for small samples of conductive EMI gaskets.

Standard

Spectrum Analyzers for Electromagnetic Interference Measurements

2009-11-22

CURRENT

AIR1255

This AIR was prepared to inform the aerospace industry about the electromagnetic interference measurement capability of spectrum analyzers. The spectrum analyzers considered are of the wide dispersion type which are electronically tuned over an octave or wider frequency range. The reason for limiting the AIR to this type of spectrum analyzer is that several manufacturers produce them as general-purpose instruments, and their use for EMI measurement will give significant time and cost savings. The objective of the AIR is to give a description of the spectrum analyzers, consider the analyzer parameters, and describe how the analyzers are usable for collection of EMI data. The operator of a spectrum analyzer should be thoroughly familiar with the analyzer and the technical concepts reviewed in this AIR before performing EMI measurements.

Standard

SUGGESTED EMI CONTROL PLAN OUTLINE

1991-12-26

HISTORICAL

ARP935

Include a brief discussion covering the scope of the EMI Control Program with respect to contractual Electromagnetic Compatibility (EMC) requirements.

Standard

Recommended Measurement Practices and Procedures for EMC Testing

2012-08-10

CURRENT

ARP1972A

Standard

Recommended Measurement Practices and Procedures for EMC Testing

2003-09-09

HISTORICAL

ARP1972

Standard

Recommended Insertion Loss Test Methods for EMI Power Line Filters

2004-08-18

HISTORICAL

ARP4244

This document presents standard methods to evaluate the common mode and differential mode insertion loss of passive electromagnetic interference power line filters from 10 kHz through 10 GHz. Insertion loss test methods for both quality assurance and performance prediction purposes are described. The performance prediction tests are selected to more closely approximate operating impedances. They are not intended to be inclusive or to represent worst case conditions. However, the methodology of this document can be used to determine the performance in an arbitrary impedance circuit.

Standard

Recommended Insertion Loss Test Methods for EMI Power Line Filters

2012-08-10

CURRENT

ARP4244A

This document presents standard methods to evaluate the common mode and differential mode insertion loss of passive electromagnetic interference power line filters from 10 kHz through 10 GHz. Insertion loss test methods for both quality assurance and performance prediction purposes are described. The performance prediction tests are selected to more closely approximate operating impedances. They are not intended to be inclusive or to represent worst case conditions. However, the methodology of this document can be used to determine the performance in an arbitrary impedance circuit.

Standard

Jet Engine Electromagnetic Interference Test Requirements and Test Method

2002-12-16

CURRENT

ARP937

Standard

Historical Rationale for Military EMI Limits

2016-06-16

CURRENT

EMCB1_1

Standard

Filters, Conventional, Electromagnetic Interference Reduction General Specification For

2023-09-18

CURRENT

ARP1172A

This specification covers the general requirements for conventional AC and/or DC current carrying filter networks for the reduction of electromagnetic interference. A conventional filter is defined herein as a component containing definitive, lumped, R-L-C components and not employing distributed parameters as a required characteristic.

Standard

FILTERS, CONVENTIONAL, ELECTROMAGNETIC INTERFERENCE REDUCTION GENERAL SPECIFICATION FOR

1972-05-01

HISTORICAL

ARP1172

This specification covers the general requirements for conventional AC and/or DC current carrying filter networks for the reduction of electromagnetic interference. A conventional filter is defined herein as a component containing definitive, lumped, R-L-C components and not employing distributed parameters as a required characteristic.

Standard

Electromagnetic Interference Measurement Impulse Generators: Standard Calibration Requirements and Techniques

2023-09-18

CURRENT

ARP1267A

This Aerospace Recommended Practice (ARP) describes a standard method and means for measuring or calibrating the "Spectrum Amplitude" output of an impulse generator.

Standard

Electromagnetic Interference Measurement Antennas; Standard Calibration Method

2003-02-12

HISTORICAL

ARP958D

This SAE Aerospace Recommended Practice (ARP) outlines a standard method for the checkout and calibration of electromagnetic interference measurement antennas. Its primary application is for use when measuring a source 1 m from the antenna in a shield room versus a source at a greater distance (far field). This is the typical distance used in performing military EMC testing. Thus, this is a method of calibration. Shield room characteristics are not considered. It does not address an unknown distributed source. Yet it is close to reality since it is based on another antenna that represents a distributed source. This document presents a technique to determine antenna factors for antennas used primarily in performing measurements in accordance with 2.1 and 2.2. The purpose of Revision B is to include the calibration of other antennas, such as small loop antennas that are also specified for use in these same references.

Standard

Electromagnetic Compatibility Control Requirements Systems

2013-03-25

CURRENT

ARP4242A

This SAE Aerospace Recommended Practice (ARP) establishes overall system electromagnetic compatibility (EMC) control requirements. EMC includes the following: a Electromagnetic Environmental Effects (E3) b Electrostatic Discharge (ESD) c Electromagnetic Interference (EMI) d Electromagnetic Vulnerability (EMV) e Electromagnetic Pulse (EMP) f Hazards of Electromagnetic Radiation to Ordnance (HERO) g Hazards of Electromagnetic Radiation to Personnel (HERP) h Hazards of Electromagnetic Radiation to Fuels (HERF) i High Intensity Radiated Fields (HIRF) j Lightning Protection k Static Electricity I TEMPEST This document is intended to be used for the procurement of land, sea, air, or space systems by any procurement activity. Tailoring of specific requirements is necessary and Appendix A has been provided for guidance.

Standard

Electromagnetic Compatibility Control Requirements Systems

1999-08-01

HISTORICAL

ARP4242

This SAE Aerospace Recommended Practice (ARP) establishes overall system electromagnetic compatibility (EMC) control requirements. EMC includes the following: a Electromagnetic Environmental Effects (E3) b Electrostatic Discharge (ESD) c Electromagnetic Interference (EMI) d Electromagnetic Vulnerability (EMV) e Electromagnetic Pulse (EMP) f Hazards of Electromagnetic Radiation to Ordnance (HERO) g Hazards of Electromagnetic Radiation to Personnel (HERP) h Hazards of Electromagnetic Radiation to Fuels (HERF) i High Intensity Radiated Fields (HIRF) j Lightning Protection k Static Electricity l TEMPEST This document is intended to be used for the procurement of land, sea, air, or space systems by any procurement activity. Tailoring of specific requirements is necessary and Appendix A has been provided for guidance.

Standard

ELECTROMAGNETIC INTERFERENCE MEASUREMENT ANTENNAS; STANDARD CALIBRATION METHOD

1996-03-01

HISTORICAL

ARP958B

This SAE Aerospace Recommended Practice (ARP) outlines a standard method for the checkout and calibration of electromagnetic interference measurement antennas. Its primary application is for use when measuring a source 1 m from the antenna in a shield room versus a source at a greater distance (far field). This is the typical distance used in performing military EMC testing. Thus, this is a method of calibration. Shield room characteristics are not considered. It does not address an unknown distributed source. Yet it is close to reality since it is based on another antenna that represents a distributed source. This document presents a technique to determine antenna factors for antennas used primarily in performing measurements in accordance with 2.1 and 2.2. The purpose of Revision B is to include the calibration of other antennas, such as small loop antennas that are also specified for use in these same references.