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GB/T 12192-2017: Methods of measurement for transmitters employing F3E or G3E emissions used in the mobile services
Status: Valid GB/T 12192: Evolution and historical versions
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Methods of measurement for transmitters employing F3E or G3E emissions used in the mobile services
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GB/T 12192-2017
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| GB/T 12192-1990 | English | RFQ |
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Methods of measurement for radio transmitters employing F3E emission used in the mobile services
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Basic data | Standard ID | GB/T 12192-2017 (GB/T12192-2017) | | Description (Translated English) | Methods of measurement for transmitters employing F3E or G3E emissions used in the mobile services | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M36 | | Classification of International Standard | 33.060.20 | | Word Count Estimation | 66,653 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-07-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 12192-2017: Methods of measurement for transmitters employing F3E or G3E emissions used in the mobile services
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Methods of measurement for transmitters employing F3E or G3E emissions used in the mobile services
ICS 33.060.20
M36
National Standards of People's Republic of China
Replacing GB/T 12192-1990
Mobile communication frequency modulation transmitter measurement method
(IEC 60489-2.1999, Radioequipmentusedinmobileservices-
Methodsofmeasurement-Part 2.transmittersemployingA3E,
Published on.2017-12-29
2018-07-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration released
Directory
Foreword V
1 Scope 1
2 Normative references 1
3 Terms and Definitions, Abbreviations 1
3.1 Terms and Definitions 1
3.2 Abbreviations 1
4 Standard Test Condition 2
4.1 Working Conditions 2
4.2 Standard conditions for basic power supply 2
4.3 Standard atmospheric conditions 3
4.4 Standard day working cycle condition 4
5 Supplementary test conditions 5
5.1 Transmitter Input Signal Configuration, Modulation Limits, and Pre-emphasis 5
5.2 Output Signal Measurement Configuration for Transmitters with Antenna Ports Connected 5
5.3 Output Signal Measurement Configuration for a Transmitter with a Monolithic Antenna 6
5.4 Audio Band Limits 6
5.5 Tested Device Interface Condition 6
5.6 Radiation Measurement Condition 6
6 Requirements for measuring equipment 6
7 Frequency error 7
7.1 Overview 7
7.2 Measurement Method 7
8 Output carrier power 7
8.1 Overview 7
8.2 Measurement Method 7
9 Radiated carrier power 7
9.1 Average radiation carrier power 7
9.2 Maximum Effective Radiated Carrier Power 8
10 Scattering frequency components 9
10.1 Overview 9
10.2 Measurement method for transmitters with antenna ports 9
10.3 Measurement method for a transmitter with a self-contained antenna 10
11 Spurious noise 11
11.1 Overview 11
11.2 Measurement Methods for Transmitters with Connected Antenna Ports 11
11.3 Measurement Method for Transmitters with Monolithic Antennas 13
12 Adjacent channel power 15
12.1 Overview 15
12.2 Measurement Methods Using a Power Measuring Receiver 15
12.3 Measurement Methods Using Non-Digitally Stored Spectrum Analyzers 17
12.4 Measurement Methods Using Digitally Stored Spectrum Analyzers 18
13 Input Power and Total Efficiency 19
13.1 Input Power 19
13.2 Overall efficiency 19
14 Intermodulation conversion loss between transmitters (TIMCL) 20
14.1 Overview 20
14.2 Measurement method for transmitters with antenna ports connected 20
14.3 Measurement method for a transmitter with a self-contained antenna 22
15 Modulation Characteristics 25
15.1 Overview 25
15.2 Measurement Method 25
15.3 Expression of results 25
16 Modulation sensitivity 26
16.1 Overview 26
16.2 Measurement Method 27
17 total distortion factor 27
17.1 The total distortion coefficient of an audio sine wave 27
17.2 The Total Distortion Factor of Two Audio Sine Waves 27
18 relative audio intermodulation product level 27
18.1 Overview 27
18.2 Measurement Method 28
18.3 Results Representation 29
19 Compressor Characteristics 29
19.1 Compressor Total Amplitude Characteristics 29
19.2 Compressor Startup and Recovery Time 30
20 modulation limit 30
20.1 Overview 30
20.2 Measurement Method 30
20.3 Result Expression 30
21 remaining modulation 30
21.1 Remaining FM 30
21.2 Remaining AM 31
22 Transmitter startup time 31
22.1 Overview 31
22.2 Transmitter carrier startup time 31
22.3 Transmitter frequency conversion time 32
Appendix A (Normative) Test Site Usage Guide 32
A.1 Overview 32
A.2 Open Field (OATS) 32
A.3 Low Reflectance Test Site (LRTS) 41
A.4 Anechoic Chamber (AC) 47
Appendix B (Normative Appendix) Recommended Features of Measuring Equipment 52
B.1 Frequency Deviation and Modulation Depth Measurers 52
B.2 True RMS Voltage Table 52
B.3 distortion factor and SINAD meter 52
B.4 frequency measuring instrument 52
B.5 Audio band limiting filter 52
B.6 Standard Test Receiver 53
B.7 Power Measurement Receiver 54
B.8 Spectrum Analyzer 54
Appendix C (Informative Appendix) Example of Transmission Line Impedance Stabilization Network 57
C.1 Introduction 57
C.2 Measurement method of interference voltage 57
Figure 1 Measurement configuration for input signal 5
Figure 2 Output signal configuration with a self-contained antenna transmitter relative measurement
Figure 3 Measurement configuration of a stray frequency component of a transmitter with an antenna port connected 9
Figure 4 Measurement configuration with spurious noise connected to antenna port transmitters (using test receiver) 12
Figure 5 Measurement configuration with spurious noise connected to antenna port transmitters (using a spectrum analyzer) 13
Figure 6 Measurement configuration of spurious noise with a fully-armed antenna transmitter (using a test receiver) 14
Figure 7 Measurement configuration of spurious noise with monolithic antenna transmitters (using a spectrum analyzer) 15
Figure 8 Measurement of adjacent channel power configuration (using a power measurement receiver) 16
Figure 9 Measurement of adjacent channel power configuration (using a spectrum analyzer) 18
Figure 10 Measurement configuration of intermodulation conversion loss between transmitters with connected antenna ports (using circulators and transmission line extenders) 21
Figure 11 Measurement configuration of intermodulation conversion loss between transmitters with connected antenna ports (using resistive or capacitive couplers) 22
Figure 12 Measurement configuration of intermodulation conversion loss between transmitters with self-contained antennas (using circulators and transmission line extenders) 23
Figure 13 Measurement configuration of intermodulation conversion loss between transmitters with self-contained antennas (using resistive or capacitive couplers) 24
Figure 14 Measurement configuration for modulation characteristics 26
Figure 15 Measurement configuration for relative audio intermodulation product levels 28
Figure 16 Measurement configuration for compressor characteristics 29
Figure 17 Measurement setup for transmitter start-up time 32
Figure A.1 Measurement configuration for open field RF emissions 35
Figure A.2 Measurement configuration for open field RF reception 36
Figure A.3 3m site size 38 in the grid
Figure A.4 LRTS RF emission measurement configuration using radio wave absorbers 42
Figure A.5 LRTS RF Receive Measurement Configuration Using Radio Wave Absorbers
Figure A.6 Ground reflected wave suppression 45
Figure A.7 Higher position to reduce ground reflections 46
Figure A.8 Example of anechoic chamber 50
Figure C.1 Transmission line impedance stabilization network (also called simulated transmission network) 57
Figure C.2 Interference voltage vector diagram 57
Figure C.3 Example of transmission line impedance stabilization network 58
Table 1 Voltage of Each Cell 2
Table 2 Standard Test Voltages for Different Operating Currents 3
Table 3 Standard atmospheric conditions for arbitration test 4
Table 4 Channel spacing and specified bandwidth and their respective frequency increments Δf 16
Table 5 Weighted characteristic values 26
Table A.1 Comparison of the advantages and disadvantages of the test site 33
Table A.2 3m test site characteristics 34
Table A.3 30m test site characteristics 34
Table A.4 Characteristics of 5m×5m×10m anechoic chambers
Table B.1 Measures noise filter characteristics 53
Table B.2 Power measurement receiver selectivity requirements 54
Table C.1 Figure C.3 corresponding resistance, attenuation, and impedance values 58
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard supersedes GB/T 12192-1990 "Measuring Method for Mobile Communication FM Radio Transmitter".
Compared with GB/T 12192-1990, the main technical changes except editorial modification are as follows.
---Modified the standard name;
--- Increased normative references (see Chapter 2);
--- Modify the measurement method of radiation carrier power (see Chapter 9, Chapter 8 of the.1990 edition);
--- Modified method of measuring the frequency components of stray scattering (see 10.2 and 10.3, 9.2, 9.3 and 9.4 of the.1990 edition);
--- Modified method of measurement of adjacent channel power (see 12.2, 12.3 and 12.4,.1990 version 11.2 and 11.3);
--- Modify the measurement method of intermodulation conversion loss between transmitters (see Chapter 14, Chapter 13 of the.1990 edition);
--- Modify the measurement method of the total distortion coefficient (see Chapter 17, Chapter 17 of the.1990 edition);
--- Modify the measuring method of transmitter start-up time (see Chapter 22, Chapter 21 of the.1990 edition);
--- Modify the recommended characteristics of the spectrum analyzer in the Appendix (see B.8, A5 of the.1990 edition);
--- Added measurement method for compressor characteristics (see Chapter 19);
--- Adds a normative appendix -- Guidelines for the use of test sites (see Appendix A);
--- Removed the method of measuring the frequency offset of transmission at high modulation frequencies (see Chapter 15 of the.1990 edition).
This standard uses the redrafted method to refer to IEC 60489-2.1999 "Measuring methods for wireless equipment in mobile services Part 2. A3E,
F3E, or G3E Transmitter Transmitters, is not equivalent to IEC 60489-2.1999.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of China Electronics Standardization Institute.
This standard is mainly drafted by. China Electronics Technology Group Corporation Seventh Institute.
Participated in the drafting of this standard. Guangdong Radio Monitoring Station, Mobile Communications National Engineering Research Center, Keli Communications Communication Co., Ltd.
Company, Motorola (China) Electronics Co., Ltd., Kenwood Co., Ltd., Wetex Communications (Suzhou) Co., Ltd., Shenzhen Youxun Technology Co., Ltd.
Exhibition Co., Ltd., Fujian Beifeng Telecommunications Technology Co., Ltd.
The main drafters of this standard. Zhang Jinan and Liu Zhendong.
Participate drafters of this standard. Xie Huiqun, Liu Xiaolan, Xiong Xiong, Xie Xing, Duan Lifeng, Huang Jie, Menao Guangping, Xu Yijian, Cui Tao, Du Qinghai,
Yao Lei and Teng Huanglong.
The previous versions of the standard replaced by this standard are.
--- GB/T 12192-1990.
Mobile communication frequency modulation transmitter measurement method
1 Scope
This standard specifies the performance, terminology and definitions, measurement conditions and measurement methods for mobile communications FM transmitters (hereinafter referred to as transmitters).
This standard applies to the operating frequency of 25MHz ~ 1000MHz, transmission of single-channel voice and other types of signals, the audio bandwidth is not super
10kHz mobile communications FM transmitter.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 12193-2017 mobile communication FM receiver measurement method
3 Terms and Definitions, Abbreviations
3.1 Terms and Definitions
The following terms and definitions apply to this document.
3.1.1
Input analog network inputsimulationnetwork
A weighted network (see Figure 1) that changes the output characteristics of an audio signal generator to simulate the actual required amplitude-frequency characteristics of the device under test
input signal. Aiming at simulating the input signal of the actual required amplitude-frequency characteristics of the device under test, changing the output characteristics of the audio signal generator
Weighted network.
3.1.2
Rated RF output power ratedradio-frequencyoutputpower
The power that should be obtained when the transmitter is connected to the specified load under the specified operating conditions.
3.1.3
Maximum allowed frequency deviation maximumpermissiblefrequencydeviation
For a particular type of service, the value of the peak frequency offset that should be limited by a consistent agreement.
3.1.4
Compressor compressor
A device that has a non-linear gain characteristic that compresses the dynamic range of the audio input amplitude of the transmitter.
3.1.5
Standard input signal voltage standardinput-signalvoltage
Generates the input signal voltage required for standard test modulation.
3.2 Abbreviations
The following abbreviations apply to this document.
AC. Anechoic Chamber
LRTS. LowReflectionTestSite
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