Path:
Home >
GB/T >
Page735 > GB/T 6113.104-2025
|| Home >
Standard_List >
GB/T >
Page735 > GB/T 6113.104-2025
GB/T 6113.104: Evolution and historical versions
| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| GB/T 6113.104-2025 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements
| Valid |
| GB/T 6113.104-2021 | English | 1145 |
Add to Cart
|
0--9 seconds. Auto-delivery
|
Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements
| Valid |
| GB/T 6113.104-2016 | English | 610 |
Add to Cart
|
0--9 seconds. Auto-delivery
|
Specification for radio disturbance and immunity measuring apparatus and methods -- Part 1-4: Radio disturbance and immunity measuring apparatus -- Antennas and test sites for radiated disturbance measurements
| Obsolete |
| GB/T 6113.104-2008 | English | RFQ |
ASK
|
7 days [Need to translate]
|
Specification for radio disturbance and immunity measuring apparatus and methods -- Part 1-4: Radio disturbance and immunity measuring apparatus -- Ancillary equipment -- Radiated disturbances
| Obsolete |
Basic data
| Standard ID | GB/T 6113.104-2025 (GB/T6113.104-2025) |
| Description (Translated English) | Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | L06 |
| Classification of International Standard | 33.100 |
| Word Count Estimation | 130,144 |
| Date of Issue | 2025-12-31 |
| Date of Implementation | 2026-07-01 |
| Older Standard (superseded by this standard) | GB/T 6113.104-2021 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 6113.104-2025: Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Antennas and test sites for radiated disturbance measurements
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 33.100
CCSL06
National Standards of the People's Republic of China
Replaces GB/T 6113.104-2021
Radio interference and immunity measurement equipment
and measurement method specifications
Parts 1-4.Radio Interference and Immunity Measurement
Antennas and test sites for measuring radiated emissions from equipment
(CISPR16-1-4.2023, IDT)
Released on December 31, 2025; to be implemented on July 1, 2026.
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface V
Introduction VII
1.Scope 1
2 Normative References 1
3.Terms, Definitions, and Abbreviations 2
3.1 Terms and Definitions 2
3.2 Abbreviations 6
4.Antenna for measuring radio radiated interference 7
4.1 General Rules 7
4.2 Physical parameters (measured quantity) for radiated disturbance measurement 7
4.3 Antennas with a frequency range of 9kHz to 150kHz 7
4.4 Antennas with a frequency range of 150kHz to 30MHz 9
4.5 Antennas with a frequency range of 30MHz to 1000MHz 9
4.6 Antennas with a frequency range of 1GHz to 18GHz 13
4.7 Special Antenna Configuration – Large Loop Antenna System 15
5.Test site for measuring radio interference field strength, 9kHz~30MHz 15
5.1 General Rules 15
5.2 Radio Frequency Background Environment of the Test Site 15
5.3 Measurement Distance and Test Space 16
5.4 Test table and antenna mount 16
5.5 Test Site Validation Procedure 16
6.Test site for measuring radio interference field strength, 30MHz~1000MHz 20
6.1 General Rules 20
6.2 Open test site 20
6.3 Applicability to other types of test sites 22
6.4 Test Site Confirmation 23
6.5 Basic Parameters of NSA Method in OATS and SAC 24
6.6 Reference Site Method for OATS and SAC Site Qualification 27
6.7 Use NSA methods to verify OATS 31
6.8 Confirmation of OATS or SAC with Climate Protection Shield 32
6.9 Some possible reasons for exceeding site-acceptable limits 35
6.10 FAR site confirmation 35
6.11 Assessment of the impact of the test bench and antenna tower 42
7 Test sites for measuring radio interference field strength, 1GHz~18GHz 43
7.1 General Rules 43
7.2 Reference Test Site 44
7.3 Confirmation of the test site 44
7.4 Antenna Requirements for SVSWR Standard Test Procedures 45
7.5 Site Validation Test Required Location Points 48
7.6 SVSWR Site Validation – Standard Test Procedure 52
7.7 SVSWR Site Verification – Reciprocal Testing Method Using Omnidirectional Field Strength Probes 53
7.8 Requirements for Conditional Measurement Locations of SVSWR 54
7.9 SVSWR Site Validation Test Report 55
7.10 Limitations of the SVSWR Site Assessment Methodology 56
7.11 Alternative test sites 56
8 Common mode absorption device 56
8.1 Overview 56
8.2 Measurement of S-parameters of CMAD 56
8.3 CMAD Test Fixtures 56
8.4 TRL Calibration Method 57
8.5 Specification for Clamp-on Ferrite CMAD 59
8.6 CMAD performance (degradation) verification using a spectrum analyzer and tracking generator 59
9.Mixing chamber 61 for total radiated power measurement
10 TEM waveguide for radiated disturbance measurement 61
Appendix A (Normative) Antenna Parameters 62
A.1 General Rule 62
A.2 Antenna 62 is the preferred choice.
A.3 Simple Dipole Antenna 63
A.4 Broadband Antenna Parameters 65
Appendix B 68
Appendix C (Normative) Large Loop Antenna System for Measuring Magnetic Field Induced Current in the Frequency Range of 9kHz to 30MHz 69
C.1 Introduction 69
C.2 Composition of LLAS 69
C.3 Structure of LLA 69
C.4 Confirmation of LLAS 73
C.5 LLAS verification of the structure of the dipole antenna 75
C.6 Conversion factor 76
C.7 Example 79
Appendix D (Normative) Detailed structure of OATS, frequency range 30MHz~1000MHz (see Chapter 6) 81
D.1 Overview 81
D.2 Construction of Grounding Plate 81
D.3 Facilities providing services to the EUT 82
D.4 Construction of the Climate Shield 82
D.5 Turntable and Test Table 83
D.6 Installation of the receiving antenna mount 83
Appendix E 84
Appendix F (Informative) Basis for ±4dB Site Acceptability Criteria (see Chapter 6) 85
F.1 Overview 85
F.2 Error Analysis 85
Appendix G (Informative) Example of Preliminary Uncertainty Assessment for COMTS Site Validation using RSM (see 6.6) 87
G.1 Input quantities to consider when calibrating antenna attenuation to a reference site using averaging techniques 87
G.2 Input quantities to consider for antenna attenuation calibration relative to reference site when using REFTS 87
G.3 Inputs to consider when verifying COMTS using antenna attenuation at a reference site 88
Appendix H (Informative) Definition of Uncertainty in Cross-Polarization Response Measurements 90
H.1 Overview 90
H.2 Uncertainty Evaluation Example 91
H.3 The principle of input quantity estimates in Tables H.1 and H.3 92
H.4 XPR 93 measured below 100MHz in OATS
Appendix I (Informative) Measurement uncertainty of COMTS validation results from 9kHz to 30MHz. 95%
I.1 Amounts to Consider When Using the NSIL Method for COMTS Validation (95)
I.2 Amounts to Consider When Using the RSM Method for COMTS Validation 96
Appendix J (Normative) Derivation of NSIL values from 9kHz to 30MHz 99
J.1 General Rule 99
J.2 Magnetic field antenna coefficient 99
J.3 Field insertion loss 100
J.4 Normalized Site Insertion Loss (NSIL) 102
J.5 NSIL Table 104
Appendix K (Informative) Design Recommendations for Test Sites from 9kHz to 30MHz 109
K.1 Overview 109
K.2 Dimensions and mass of the grounding plane 109
K.3 Barrier-free area 110
K.4 No-resonance region 110
Appendix L (Informative) Accuracy of NSIL values from 9kHz to 30MHz 111
L.1 Overview 111
L.2 Cross-check NEC 111 using analytical formulas
L.3 Recommended NEC version 112
L.4 Low-frequency instability 112
L.5 Extrapolation Method for Solving Instability 113
L.6 Reducing the number of segments to resolve instability 113
Appendix M (Informative) Measurement Uncertainty in a 10m Semi-Anechoic Chamber for 9kHz~30MHz Without Satisfying the ±4dB Criterion
Calculation Example 114
Appendix N (Normative) Calibration of Antenna Factors and Magnetic Fields for Antennas from 9kHz to 30MHz 117
N.1 Overview 117
N.2 Calibration Procedure 117
N.3 Measurement uncertainty 118
References 119
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
GB/T (Z)6113, "Specification for Radio Interference and Immunity Measurement Equipment and Methods", is a fundamental standard for electromagnetic compatibility.
This document is Parts 1-4 of GB/T (Z)6113.The following parts of GB/T (Z)6113 have been published.
Part 1.Radio Interference and Immunity Measurement Equipment
---Part 1-1.Radio Interference and Immunity Measurement Equipment;
---Part 1-2.Coupling devices for conducted interference measurements of radio disturbance and immunity measurement equipment;
---Parts 1-3.Radio Interference and Immunity Measurement Equipment and Auxiliary Equipment Interference Power;
---Parts 1-4.Radio Interference and Immunity Measurement Equipment, Antennas for Radiated Interference Measurement, and Test Sites;
---Parts 1-5.Radio Interference and Immunity Measurement Equipment, 5MHz~18GHz Antenna Calibration Site and Reference Test
site;
---Parts 1-6.EMC antenna calibration for radio disturbance and immunity measurement equipment.
Part 2.Methods for Measuring Radio Interference and Immunity
---Part 2-1.Radio Interference and Immunity Measurement Methods - Conducted Interference Measurement;
---Part 2-2.Radio Interference and Immunity Measurement Methods - Interference Power Measurement;
---Parts 2-3.Methods for Measuring Radio Interference and Immunity; Radiated Interference Measurement;
---Parts 2-4.Radio Interference and Immunity Measurement Methods; Immunity Measurement;
---Parts 2-5.On-site measurements of large equipment disturbance launches.
Part 3.Technical Report on Radio Interference and Immunity Measurement
---Part 3.Technical Report on Radio Interference and Immunity Measurement
Part 4.Uncertainty, Statistics, and Limit Modeling
---Part 4-1.Uncertainty, Statistics and Limit Modeling - Uncertainty in Standardized EMC Tests;
---Part 4-2.Uncertainty, Statistics and Limit Modeling. Uncertainty of Measurement Equipment and Facilities;
---Part 4-3.Uncertainty, Statistics, and Limit Modeling. Statistical Considerations for Determining EMC Compliance of Batch Products;
---Part 4-4.Uncertainty, Statistics, and Limit Modeling; Statistical Analysis of Complaints and Limit Calculation Models for Protecting Radio Services;
---Parts 4-5.Uncertainty, Statistics and Limits Modeling. Conditions for Using Alternative Experimental Methods
This document replaces GB/T 6113.104-2021 "Specifications for Radio Interference and Immunity Measurement Equipment and Methods - Parts 1-4".
"Radio Interference and Immunity Measurement Equipment. Antennas and Test Sites for Radiated Interference Measurement", compared with GB/T 6113.104-2021, except for...
Aside from structural adjustments and editorial changes, the main technical changes are as follows.
---The terms "antenna insertion loss to reference site" and "feed point of shielded loop antenna" have been added (see 3.1.30, 3.1.31);
---The "General Rules for Magnetic Field Antennas" have been amended (see 4.3.2.1, 2021 version 4.3.2.1);
---Added "Considerations for Active Antennas" (see 4.3.2.2);
---The "Special Antenna Configuration---Large Loop Antenna System" has been changed (see 4.7, 2021 version 4.7);
---Added "Test sites for measuring radio interference field strength, 9kHz~30MHz" (see Chapter 5);
---The content related to reverberation chambers has been removed; IEC 61000-4-21 is directly referenced (see Chapter 9 of the 2021 edition).
---The relevant content regarding the large loop antenna system has been revised (see Appendix C, Appendix C of the 2021 edition);
---Added "Derivation of NSIL values from 9kHz to 30MHz" (see Appendix J);
---Added "Calibration of the sum of the magnetic field antenna coefficients for the 9kHz~30MHz antenna" (see Appendix N).
This document is equivalent to CISPR 16-1-4.2023, "Specifications for apparatus and methods of measuring radio disturbances and immunity, Parts 1-4".
Part 1.Radio interference and immunity measurement equipment, antennas for radiated interference measurement, and test sites.
The following minimal editorial changes have been made to this document.
---The figures and formulas in the main text have been renumbered.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the National Technical Committee on Radio Interference Standardization (SAC/TC79).
This document was drafted by. China Electronics Technology Standardization Institute, Zhejiang Nuoyi Technology Co., Ltd., Ningbo Customs Technology Center, and China Computing Technology Center.
Institute of Quantitative Science, Xiamen Hainoda Scientific Instruments Co., Ltd., Guangzhou Chengzhen Electronic Technology Co., Ltd., Southeast University, Beiqi Foton Motor
Joint-stock company, Xiangyang Da'an Automobile Testing Center Co., Ltd., Guangzhou Saibao Metrology and Testing Center Service Co., Ltd., Shanghai Metrology and Testing Center
Test Technology Research Institute Co., Ltd., Beijing University of Posts and Telecommunications, Alto Radio Frequency Technology (Shanghai) Co., Ltd., Jiangsu Provincial Electronic Information Product Quality Supervision Bureau
Supervision and Inspection Institute (Jiangsu Provincial Information Security Evaluation Center), Shanghai Electrical Equipment Testing Institute Co., Ltd., China Electric Power Research Institute Co., Ltd.
Company, Beijing Dechen Technology Co., Ltd., State Grid Electric Power Research Institute Co., Ltd., Jiangsu Provincial Institute of Metrology (Jiangsu Provincial Energy Measurement)
Data Center), Aerospace Quality Measurement (Xi'an) Technology Co., Ltd., Suzhou Maidate Technology Co., Ltd., Beijing Kehuan Century Electromagnetic Compatibility Technology Co., Ltd.
Limited Liability Company, Shenzhen Magson Technology Co., Ltd., Nanjing Rongce Testing Technology Co., Ltd., and the Fifth Research Institute of Electronics of the Ministry of Industry and Information Technology
Institute, China Household Electric Appliance Research Institute (Beijing) Testing and Certification Co., Ltd., Shanghai Haojing Automotive Testing Technology Co., Ltd., Guangdong Provincial Institute of Metrology (South China)
National Institute of Metrology and Testing (NIRT), China Automotive Engineering Research Institute Co., Ltd., Beijing Jiaotong University, Beijing Radio Metrology and Testing Institute,
Liaoning Provincial Institute for Medical Device Testing and Inspection, China Academy of Information and Communications Technology, Wuxi Jingren Electronic Materials Technology Co., Ltd., and Vivo Mobile Communications Co., Ltd.
Limited Company, Jiashan Franknia Electromagnetic Compatibility Co., Ltd., Siemens Sensors & Communications Co., Ltd., Chongqing Shiyi Product Quality Testing Co., Ltd.
Limited Liability Company, Guangdong Zhongren South China Testing Technology Co., Ltd., Bodin Shihua (Beijing) Technology Co., Ltd., Beijing Tonghe Shiyi Telecom Science
Technology Research Institute Co., Ltd., Guangdong Product Quality Supervision and Inspection Institute, China Household Electric Appliance Research Institute, Shenzhen Beize Testing Technology Co., Ltd.
The company, Beijing Daze Technology Co., Ltd., Henan Provincial Institute of Electronic Information Product Quality Inspection and Technology, Tianjin Aerospace Ruilai Technology Co., Ltd.
Shaanxi Xingyi Space Technology Co., Ltd., Shenzhen Jiachen Technology Co., Ltd., Hunan Aike Nuowei Technology Co., Ltd., and Shenzhen Boxin Technology Co., Ltd.
Limited Liability Company, Zhejiang Longchuang Testing Technology Co., Ltd., Jiangyin Tiande Electromagnetic Shielding Equipment Co., Ltd., Jiangsu Dongxu Communication Technology Co., Ltd.
Limited Liability Company, Hangzhou Wanlong Communication Technology Co., Ltd.
The main drafters of this document are. Cui Qiang, Zheng Yimin, He Peng, Huang Pan, Chen Zhengyu, Meng Donglin, Fu Jun, Liu Xiao, Li Nan, Zhou Zhongyuan, and Wang Zetang.
Liu Ketao, Chen Yan, Li Jinlong, Shi Dan, Huang Minchang, Zhu Mingxing, Zhang Fengxian, Yang Zhichao, Ma Lin, Ju Wenjing, Feng Tieying, Li Haiyang, He Xiaohu
Liang Liang, Shen Yangbin, Yi Pufei, Chu Rui, Zhou Haibin, Zhao Xiaohong, Chang Zhifang, Huang Xuemei, Xiao Jianjun, Li Ni, Yuan Yanxing, Wei Jingfeng, Zang Jiawei
Liang Jiming, Guo Dong, Kang Dao, Zhou Lei, Kang Wei, Xu Dan, Liu Yang, Lu Yanhan, Liu Baodian, Li Xiucheng, Zhong Yuansheng, Zhang Yanyan, Li Guanghua, Zhang Libo
Shi Xinrong, Li Lijia, Li Bo, Yang Manjun, Wang Zheng, Wu Lianbao, Zhou Ziwei, Wang Yabin, Shi Lei, Song Lin, Liu Jingxuan, Wen Na, Yu Xinghong.
The release history of this document and the document it replaces is as follows.
---First published in.2008 as GB/T 6113.104-2008, revised for the first time in.2016, and revised for the second time in 2021;
---This is the third revision.
Introduction
To standardize electromagnetic compatibility (EMC) measurements, consider measurement uncertainties, provide relevant background information, and classify EMC products...
The formulation and revision of standards laid the technical foundation. GB/T (Z)6113 "Specification for Measurement Equipment and Methods for Radio Interference and Immunity" stipulates the requirements for radio interference and immunity measurement.
The model for measuring electrical disturbance and immunity, including measurement equipment, methods, technical requirements for measurement uncertainty, and calculation limits, consists of four parts, the first of which is...
Part 1 is the specification for radio interference and immunity measurement equipment; Part 2 is the specification for radio interference and immunity measurement methods; Part 3 is...
Technical report on radio interference and immunity measurement; Part 4 covers uncertainty, statistics, and limit modeling.
Part 1 is planned to be divided into 6 parts.
---Part 1-1.Measurement Equipment for Radio Interference and Immunity. The purpose is to specify the measurement equipment for radio interference.
Performance and characteristic requirements for measuring equipment and specialized equipment for intermittent disturbance measurement.
---Part 1-2.Coupling devices for conducted interference measurements using radio interference and immunity measurement equipment. The purpose is to specify radio frequency...
Characteristics and performance requirements of auxiliary equipment used for measuring disturbance voltage and disturbance current.
---Parts 1-3.Radio Interference and Immunity Measurement Equipment and Auxiliary Equipment Interference Power. The purpose is to specify radio interference...
Requirements for the characteristics and calibration methods of the absorption clamp used for interference power measurement.
---Parts 1-4.Radio Interference and Immunity Measurement Equipment; Antennas and Test Sites for Radiated Interference Measurement. The purpose is to regulate...
Characteristics and performance requirements of the radiated emissions measurement antenna and test site.
---Parts 1-5.Radio Interference and Immunity Measurement Equipment, 5MHz~18GHz Antenna Calibration Sites and Reference Test Fields
The purpose is to specify the requirements for antenna calibration sites and reference test sites.
---Parts 1-6.EMC Antenna Calibration for Radio Interference and Immunity Measurement Equipment. The purpose is to specify the calibration of radiated interference measurement antennas.
The calibration procedure and related requirements for the antenna coefficient of the line.
Radio interference and immunity measurement equipment
and measurement method specifications
Parts 1-4.Radio Interference and Immunity Measurement
Antennas and test sites for measuring radiated emissions from equipment
1 Scope
This document specifies the characteristics and performance requirements of radiated emissions measurement equipment, applicable to a frequency range of 9 kHz to 18 GHz.
This includes specifications for measurement antennas and test sites.
Note. According to IEC Guide 107, CISPR 16-1-4 is the basic electromagnetic compatibility (EMC) standard used by the IEC product committees. As per IEC Guide 107...
The product committee is responsible for determining the applicability of EMC standards. CISPR and its subcommittees (corresponding to the domestic SAC/TC79 technical committee)
The committee and its subcommittees collaborate with these product committees in evaluating the value of specific tests for their particular products. The aforementioned technical committees...
The meeting and product committee correspond to the relevant domestic product technology committee.
The requirements of this document apply to all frequencies and levels of radiated disturbances within the CISPR indication range of the measuring equipment.
The measurement methods for radiated emissions are specified in CISPR 16-2-3.More information on radio emissions can be found in section 3 of CISPR 16.
The details are given in Part 4 of CISPR 16.Uncertainty, statistics, and limit modeling are presented in Part 4 of CISPR 16.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 6113.101-2021 Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 1-1.Radio Interference
Immunity measurement equipment (CISPR 16-1-1.2019, IDT)
GB/T 6113.106-2024 Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 1-6.Radio Interference
EMC antenna calibration for immunity measurement equipment (CISPR16-1-6.2022, IDT)
GB/T 6113.203-2025 Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 2-3.Radio Interference
Immunity measurement methods for radiated disturbance measurement (CISPR 16-2-3.2023, IDT)
Note. GB/T 4365-2024 Electromagnetic compatibility (IEC 60050-161.2021, MOD)
IEC 61000-4-20 Electromagnetic compatibility testing and measurement techniques - Emission and immunity tests in transverse electromagnetic (TEM) waveguides
Note. GB/T 17626.20-2014 Electromagnetic Compatibility Testing and Measurement Techniques - Emission and Immunity Testing in Transverse Electromagnetic Waveguides (TEM)
(IEC 61000-4-20.2010, IDT)
Note. GB/T 17626.21-2014 Electromagnetic compatibility testing and measurement techniques - Mixing chamber test method (IEC 61000-4-21.2011, IDT)
CISPR 16-1-1 Specification for apparatus and methods of measurement of radio disturbances and immunity - Part 1-1.Radio disturbances and immunity
