AS/NZS CISPR 16.4.2:2020
Specification for radio disturbance and immunity measuring apparatus and methods, Part 4.2: Uncertainties, statistics and limit modelling - Measurement instrumentation uncertainty
Objective of this document is to specify the method of applying Measurement Instrumentation Uncertainty (MIU) when determining conformance with AS/NZS CISPR disturbance limits. The material is also relevant to any EMC test when interpretation of the results and conclusions reached will be impacted by the uncertainty of the measurement instrumentation used during testing. This document is an adoption with national modifications, and has been reproduced from, CISPR 16-4-2:2011+AMD1:2014+AMD2:2018 CSV, Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-2: Uncertainties, statistics and limit modelling - Measurement instrumentation uncertainty and its Corrigendum 1 (2019) which has been added at the end of the source test. The modifications are additional requirements and are set out in Appendix ZZ, which has been added after Corrigendum 1.
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AS/NZS CISPR 16.4.2:2020 Specification for radio disturbance and immunity measuring apparatus and methods Uncertainties, statistics and limit modelling - Measurement instrumentation uncertainty (CISPR 16-4-2:2011/AMD1:2014/AMD2:2018 CSV (ED 2.2)/COR1:2019, MOD)
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
3.2 Symbols
3.2.1 General symbols
3.2.2 Symbols for measured quantities
3.2.3 Symbols for input quantities common to all disturbance measurements
3.3 Abbreviations
4 Compliance criterion for the MIU
4.1 General
4.2 Compliance assessment
5 Conducted disturbance measurements
5.1 Conducted disturbance measurements at a mains port using a V-AMN (see also B.1)
5.1.1 Measurand for measurements using a V-AMN
5.1.2 Symbols of input quantities specific to measurements using a V-AMN
5.1.3 Input quantities to be considered for conducted disturbance measurements at a mains port using a V-AMN
5.2 Conducted disturbance measurements at a mains port using a VP (see also B.2)
5.2.1 Measurand for measurements using a VP
5.2.2 Symbols of input quantities specific to measurements using a VP
5.2.3 Input quantities to be considered for conducted disturbance measurements at a mains port using a VP
5.3 Conducted disturbance measurements at a telecommunication port using an AAN (Y-network) (see also B.3)
5.3.1 Measurand for measurements using an AAN
5.3.2 Symbols of input quantities specific for measurements using an AAN
5.3.3 Input quantities to be considered for conducted disturbance measurements at a telecommunication port using an AAN
5.4 Conducted disturbance measurements at a telecommunication port using a CVP (see also B.4)
5.4.1 Measurand for measurements using a CVP
5.4.2 Symbols of input quantities specific for measurements using a CVP
5.4.3 Input quantities to be considered for conducted disturbance measurements at a telecommunication port using a CVP
5.5 Conducted disturbance measurements at a telecommunication port using a CP (see also B.5)
5.5.1 Measurand for measurements using a CP
5.5.2 Symbols of input quantities specific for measurements using a CP
5.5.3 Input quantities to be considered for conducted disturbance measurements at a telecommunication port using a CP
5.6 Conducted disturbance measurements using a CDNE (see also B.7)
5.6.1 Measurand for measurements using a CDNE
5.6.2 Symbols of input quantities specific to CDNE measurements
5.6.3 Input quantities to be considered for conducted disturbance measurements at a mains port using a CDNE
5.7 Conducted disturbance measurements at AC mains and other power ports using a Δ-AN
5.7.1 Measurand for measurements using a Δ-AN
5.7.2 Symbols of input quantities specific to measurements using a Δ-AN
5.7.3 Input quantities to be considered for conducted disturbance measurements at AC mains and other power ports using a Δ-AN
6 Disturbance power measurements (see also C.1)
6.1 Measurand for disturbance power measurements
6.2 Symbols of input quantities specific for disturbance power measurements
6.3 Input quantities to be considered for disturbance power measurements
7 Radiated disturbance measurements in the frequency range 30 MHz to 1 000 MHz
7.1 Radiated disturbance measurements at an OATS or in a SAC (see also D.1)
7.1.1 Measurand for radiated disturbance measurements at an OATS or in a SAC
7.1.2 Symbols of input quantities specific for radiated disturbance measurements
7.1.3 Input quantities to be considered for radiated disturbance measurements at an OATS or in a SAC
7.2 Radiated disturbance measurements in a FAR (see also D.2)
7.2.1 Measurand for radiated disturbance measurements in a FAR
7.2.2 Symbols of input quantities specific for radiated disturbance measurements
7.2.3 Input quantities to be considered for radiated disturbance measurements in a FAR
8 Radiated disturbance measurements in the frequency range 1 GHz to 18 GHz (see also E.1)
8.1 Measurand for radiated disturbance measurements in a FAR (FSOATS)
8.2 Symbols of input quantities specific for radiated disturbance measurements
8.3 Input quantities to be considered for radiated disturbance measurements in a FAR
9 Radiated disturbance measurements in the frequency range 9 kHz to 30 MHz
9.1 Magnetic field disturbance measurements using the LLAS in the frequency range 9 kHz to 30 MHz (see also Clause F.1)
9.1.1 Measurand for LLAS measurements
9.1.2 Symbols of input quantities specific for LLAS measurements
9.1.3 Input quantities to be considered for LLAS measurements
9.2 Magnetic field disturbance measurement in the frequency range 9 kHz to 30 MHz using a loop antenna at various distances from the EUT
Annexes
Annex A (informative) Basis for Ucispr values in Table 1, general information and rationale for input quantities common to all measurement methods
Annex B (informative) Basis for Ucispr values in Table 1, uncertainty budgets and rationale for conducted disturbance measurements
Annex C (informative) Basis for Ucispr values in Table 1 – Disturbance power measurements
Annex D (informative) Basis for Ucispr values in Table 1 – Radiated disturbance measurements from 30 MHz to 1 000 MHz
Annex E (informative) Basis for Ucispr values in Table 1 – Radiated disturbance measurements from 1 GHz to 18 GHz
Annex F (informative) Basis for Ucispr values in Table 1 – Radiated disturbance measurements from 9 kHz to 30 MHz (LLAS)
Bibliography
Figures
Figure A.1 – Deviation of the QP detector level indication from the signal level at receiver input for two cases, a sine-wave signal and an impulsive signal (PRF 100 Hz)
Figure A.2 – Deviation of the peak detector level indication from the signal level at receiver input for two cases, a sine-wave signal and an impulsive signal (PRF 100 Hz)
Figure A.3 – Illustration of system noise figure
Figure D.1 – Effect of antenna directivity without tilting
Figure D.2 – Effect of antenna directivity with optimum tilting
Tables
Table 1 – Values of Ucispr
Table B.1 – Conducted disturbance measurements from 9 kHz to 150 kHz using a 50 Ω/50 μH + 5 Ω V-AMN
Table B.2 – Conducted disturbance measurements from 150 kHz to 30 MHz using a50 Ω/50 μH V-AMN
Table B.3 – Conducted disturbance measurements from 9 kHz to 30 MHz using a VP
Table B.4 – Conducted disturbance measurements from 150 kHz to 30 MHz using an AAN
Table B.5 – Conducted disturbance measurements from 150 kHz to 30 MHz using a capacitive voltage probe (CVP)
Table B.6 – Conducted disturbance measurements from 9 kHz to 30 MHz using a CP
Table B.7 – Uncertainty budget for conducted disturbance measurements from 30 MHz to 300 MHz
Table B.8 − Conducted disturbances measurements from 150 kHz to 30 MHz using a 150 Ω Δ-AN
Table C.1 – Disturbance power from 30 MHz to 300 MHz
Table D.1 – Horizontally polarized radiated disturbances from 30 MHz to 200 MHz using a biconical antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.2 – Vertically polarized radiated disturbances from 30 MHz to 200 MHz using a biconical antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.3 – Horizontally polarized radiated disturbances from 200 MHz to 1 GHz using an LPDA antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.4 – Vertically polarized radiated disturbances from 200 MHz to 1 GHz using an LPDA antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.5 – Radiated disturbance measurements from 30 MHz to 200 MHz using a biconical antenna in a FAR at a distance of 3 m
Table D.6 – Radiated disturbance measurements from 200 MHz to 1 000 MHz using an LPDA antenna in a FAR at a distance of 3 m
Table D.7 – Horizontally polarized radiated disturbances from 30 MHz to 1 000 MHz using a hybrid antenna at an OATS/SAC at a distance of 3 m, 10 m, or 30 m
Table D.8 – Vertically polarized radiated disturbances from 30 MHz to 1 000 MHz using a hybrid antenna at an OATS/SAC at a distance of 3 m, 10 m, or 30 m
Table D.9 – Radiated disturbance measurements from 30 MHz to 1 000 MHz using a hybrid antenna in a FAR at a distance of 3 m
Table E.1 – Radiated disturbance measurements from 1 GHz to 6 GHzin a FAR (FSOATS) at a distance of 3 m
Table E.2 – Radiated disturbance measurements from 6 GHz to 18 GHzin a FAR (FSOATS) at a distance of 3 m
Table F.1 – Radiated disturbance measurements from 9 kHz to 30 MHz in a LLAS of any diameter
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AS/NZS CISPR 16.4.2:2020 Specification for radio disturbance and immunity measuring apparatus and methods Uncertainties, statistics and limit modelling - Measurement instrumentation uncertainty (CISPR 16-4-2:2011/AMD1:2014/AMD2:2018 CSV (ED 2.2)/COR1:2019, MOD)
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
3.2 Symbols
3.2.1 General symbols
3.2.2 Symbols for measured quantities
3.2.3 Symbols for input quantities common to all disturbance measurements
3.3 Abbreviations
4 Compliance criterion for the MIU
4.1 General
4.2 Compliance assessment
5 Conducted disturbance measurements
5.1 Conducted disturbance measurements at a mains port using a V-AMN (see also B.1)
5.1.1 Measurand for measurements using a V-AMN
5.1.2 Symbols of input quantities specific to measurements using a V-AMN
5.1.3 Input quantities to be considered for conducted disturbance measurements at a mains port using a V-AMN
5.2 Conducted disturbance measurements at a mains port using a VP (see also B.2)
5.2.1 Measurand for measurements using a VP
5.2.2 Symbols of input quantities specific to measurements using a VP
5.2.3 Input quantities to be considered for conducted disturbance measurements at a mains port using a VP
5.3 Conducted disturbance measurements at a telecommunication port using an AAN (Y-network) (see also B.3)
5.3.1 Measurand for measurements using an AAN
5.3.2 Symbols of input quantities specific for measurements using an AAN
5.3.3 Input quantities to be considered for conducted disturbance measurements at a telecommunication port using an AAN
5.4 Conducted disturbance measurements at a telecommunication port using a CVP (see also B.4)
5.4.1 Measurand for measurements using a CVP
5.4.2 Symbols of input quantities specific for measurements using a CVP
5.4.3 Input quantities to be considered for conducted disturbance measurements at a telecommunication port using a CVP
5.5 Conducted disturbance measurements at a telecommunication port using a CP (see also B.5)
5.5.1 Measurand for measurements using a CP
5.5.2 Symbols of input quantities specific for measurements using a CP
5.5.3 Input quantities to be considered for conducted disturbance measurements at a telecommunication port using a CP
5.6 Conducted disturbance measurements using a CDNE (see also B.7)
5.6.1 Measurand for measurements using a CDNE
5.6.2 Symbols of input quantities specific to CDNE measurements
5.6.3 Input quantities to be considered for conducted disturbance measurements at a mains port using a CDNE
5.7 Conducted disturbance measurements at AC mains and other power ports using a Δ-AN
5.7.1 Measurand for measurements using a Δ-AN
5.7.2 Symbols of input quantities specific to measurements using a Δ-AN
5.7.3 Input quantities to be considered for conducted disturbance measurements at AC mains and other power ports using a Δ-AN
6 Disturbance power measurements (see also C.1)
6.1 Measurand for disturbance power measurements
6.2 Symbols of input quantities specific for disturbance power measurements
6.3 Input quantities to be considered for disturbance power measurements
7 Radiated disturbance measurements in the frequency range 30 MHz to 1 000 MHz
7.1 Radiated disturbance measurements at an OATS or in a SAC (see also D.1)
7.1.1 Measurand for radiated disturbance measurements at an OATS or in a SAC
7.1.2 Symbols of input quantities specific for radiated disturbance measurements
7.1.3 Input quantities to be considered for radiated disturbance measurements at an OATS or in a SAC
7.2 Radiated disturbance measurements in a FAR (see also D.2)
7.2.1 Measurand for radiated disturbance measurements in a FAR
7.2.2 Symbols of input quantities specific for radiated disturbance measurements
7.2.3 Input quantities to be considered for radiated disturbance measurements in a FAR
8 Radiated disturbance measurements in the frequency range 1 GHz to 18 GHz (see also E.1)
8.1 Measurand for radiated disturbance measurements in a FAR (FSOATS)
8.2 Symbols of input quantities specific for radiated disturbance measurements
8.3 Input quantities to be considered for radiated disturbance measurements in a FAR
9 Radiated disturbance measurements in the frequency range 9 kHz to 30 MHz
9.1 Magnetic field disturbance measurements using the LLAS in the frequency range 9 kHz to 30 MHz (see also Clause F.1)
9.1.1 Measurand for LLAS measurements
9.1.2 Symbols of input quantities specific for LLAS measurements
9.1.3 Input quantities to be considered for LLAS measurements
9.2 Magnetic field disturbance measurement in the frequency range 9 kHz to 30 MHz using a loop antenna at various distances from the EUT
Annexes
Annex A (informative) Basis for Ucispr values in Table 1, general information and rationale for input quantities common to all measurement methods
Annex B (informative) Basis for Ucispr values in Table 1, uncertainty budgets and rationale for conducted disturbance measurements
Annex C (informative) Basis for Ucispr values in Table 1 – Disturbance power measurements
Annex D (informative) Basis for Ucispr values in Table 1 – Radiated disturbance measurements from 30 MHz to 1 000 MHz
Annex E (informative) Basis for Ucispr values in Table 1 – Radiated disturbance measurements from 1 GHz to 18 GHz
Annex F (informative) Basis for Ucispr values in Table 1 – Radiated disturbance measurements from 9 kHz to 30 MHz (LLAS)
Bibliography
Figures
Figure A.1 – Deviation of the QP detector level indication from the signal level at receiver input for two cases, a sine-wave signal and an impulsive signal (PRF 100 Hz)
Figure A.2 – Deviation of the peak detector level indication from the signal level at receiver input for two cases, a sine-wave signal and an impulsive signal (PRF 100 Hz)
Figure A.3 – Illustration of system noise figure
Figure D.1 – Effect of antenna directivity without tilting
Figure D.2 – Effect of antenna directivity with optimum tilting
Tables
Table 1 – Values of Ucispr
Table B.1 – Conducted disturbance measurements from 9 kHz to 150 kHz using a 50 Ω/50 μH + 5 Ω V-AMN
Table B.2 – Conducted disturbance measurements from 150 kHz to 30 MHz using a50 Ω/50 μH V-AMN
Table B.3 – Conducted disturbance measurements from 9 kHz to 30 MHz using a VP
Table B.4 – Conducted disturbance measurements from 150 kHz to 30 MHz using an AAN
Table B.5 – Conducted disturbance measurements from 150 kHz to 30 MHz using a capacitive voltage probe (CVP)
Table B.6 – Conducted disturbance measurements from 9 kHz to 30 MHz using a CP
Table B.7 – Uncertainty budget for conducted disturbance measurements from 30 MHz to 300 MHz
Table B.8 − Conducted disturbances measurements from 150 kHz to 30 MHz using a 150 Ω Δ-AN
Table C.1 – Disturbance power from 30 MHz to 300 MHz
Table D.1 – Horizontally polarized radiated disturbances from 30 MHz to 200 MHz using a biconical antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.2 – Vertically polarized radiated disturbances from 30 MHz to 200 MHz using a biconical antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.3 – Horizontally polarized radiated disturbances from 200 MHz to 1 GHz using an LPDA antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.4 – Vertically polarized radiated disturbances from 200 MHz to 1 GHz using an LPDA antenna at an OATS/SAC at a distance of 3 m, 10 m or 30 m
Table D.5 – Radiated disturbance measurements from 30 MHz to 200 MHz using a biconical antenna in a FAR at a distance of 3 m
Table D.6 – Radiated disturbance measurements from 200 MHz to 1 000 MHz using an LPDA antenna in a FAR at a distance of 3 m
Table D.7 – Horizontally polarized radiated disturbances from 30 MHz to 1 000 MHz using a hybrid antenna at an OATS/SAC at a distance of 3 m, 10 m, or 30 m
Table D.8 – Vertically polarized radiated disturbances from 30 MHz to 1 000 MHz using a hybrid antenna at an OATS/SAC at a distance of 3 m, 10 m, or 30 m
Table D.9 – Radiated disturbance measurements from 30 MHz to 1 000 MHz using a hybrid antenna in a FAR at a distance of 3 m
Table E.1 – Radiated disturbance measurements from 1 GHz to 6 GHzin a FAR (FSOATS) at a distance of 3 m
Table E.2 – Radiated disturbance measurements from 6 GHz to 18 GHzin a FAR (FSOATS) at a distance of 3 m
Table F.1 – Radiated disturbance measurements from 9 kHz to 30 MHz in a LLAS of any diameter
Previous versions
AS/NZS CISPR 16.4.2:2020
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Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.