GB/T 33778-2017 English PDF

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GB/T 33778-2017: RF technical requirements and testing methods for the wireless transceiver of video monitoring system
Status: Valid

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GB/T 33778-2017	439	Add to Cart	4 days	RF technical requirements and testing methods for the wireless transceiver of video monitoring system	Valid

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Basic data

Standard ID: GB/T 33778-2017 (GB/T33778-2017)
Description (Translated English): RF technical requirements and testing methods for the wireless transceiver of video monitoring system
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M36
Classification of International Standard: 33.060.20
Word Count Estimation: 22,290
Date of Issue: 2017-05-31
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 9254-2008
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
Summary: This standard specifies the main RF technical parameters, limit requirements and test methods for wireless transmission equipment operating in the video surveillance system at 336 MHz to 344 MHz or 1 785 MHz to 1 805 MHz. This standard applies to wireless transmission equipment operating in the video surveillance system of 336 MHz to 344 MHz or 1 785 MHz to 1 805 MHz, including equipment such as base stations, repeater stations and portable stations.

GB/T 33778-2017: RF technical requirements and testing methods for the wireless transceiver of video monitoring system

---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.
RF technical requirements and testing methods for the wireless transceiver of video monitoring system ICS 33.060.20 M36 National Standards of People's Republic of China Video surveillance system wireless transmission equipment RF technology Indicators and test methods 2017-05-31 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface I 1 Scope 1 2 normative reference document 1 3 terms and definitions, abbreviations 1 3.1 Terms and definitions 1 3.2 Abbreviations 2 4 technical requirements 2 4.1 General technical requirements 2 4.2 RF performance requirements 3 4.3 Environmental Adaptability Requirements 5 5 RF performance test method 6 5.1 Test conditions 6 5.2 Transmitter RF performance test method 7 5.3 Receiver RF performance test method 10 Appendix A (normative) Site layout of test sites and radiation testing Appendix B (Normative Appendix) General Test Method for Radiation Spurs 17 References 19

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents. This standard is owned by the Ministry of Industry and Information Technology (communications) of the People's Republic of China. The drafting unit of this standard. National Radio Monitoring Center, Beijing Xinwei Communication Technology Co., Ltd. The main drafters of this standard. Song Qizhu, Wang Junfeng, Chen Guocheng, Zhang Junchi, Li Xiaofan, Liu Xiaoyong, Peng Xiao, Wang Hao, Guo Yu, Fu Jing Video surveillance system wireless transmission equipment RF technology Indicators and test methods

1 Scope

This standard specifies the work in the 336MHz ~ 344MHz or 1785MHz ~ 1805MHz frequency band video surveillance system wireless transmission The main RF technical parameters, limit requirements and test methods for the equipment. This standard applies to work in 336MHz ~ 344MHz or 1785MHz ~ 1805MHz frequency band video surveillance system in the Line transmission equipment, including base stations, relay stations and portable stations and other equipment.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Limits and methods of measurement of radio disturbance in information technology equipment GB/T 9254-2008 3 terms and definitions, abbreviations 3.1 Terms and definitions The following terms and definitions apply to this document. 3.1.1 Video surveillance system videomonitoringsystem The video/audio signals collected by the video/audio acquisition device are transmitted to the monitoring center via wired or wireless transmission system. 3.1.2 Wireless transmission equipment wirelesstransceiver Video monitoring system through the wireless transmission, transmission of video/audio signal equipment. 3.1.3 Base station basestation A wireless transmission device that acts as a central station or fixed station in a video surveillance system. 3.1.4 Repeater repeater A device for relaying and forwarding the audio and video signals transmitted by the portable station. The relay station can be installed in vehicles, boats or airplanes The tool can also be used in a fixed position. 3.1.5 Portlet portablestation Easy to carry (portable or wear), by the internal power supply equipment, the use of self-antenna, in the monitoring of the scene of audio and video signals into Line acquisition, processing and wireless transmission of mobile video wireless transmission equipment. ......

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