GB/T 25003-2010 English PDF

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GB/T 25003-2010: Electromagnetic environment protection requirements and measurement methods for VHF/UHF band radio monitoring station
Status: Valid

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Basic data

Standard ID: GB/T 25003-2010 (GB/T25003-2010)
Description (Translated English): Electromagnetic environment protection requirements and measurement methods for VHF/UHF band radio monitoring station
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L06
Classification of International Standard: 33.100
Word Count Estimation: 9,937
Date of Issue: 2010-08-09
Date of Implementation: 2010-12-01
Quoted Standard: GB 13614; GB 13617; GJB 72A; GJB 2080
Regulation (derived from): Announcement of Newly Approved National Standards No. 3, 2010 (No. 158 overall)
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 VHF/UHF radio stations quite paragraph electromagnetic environmental interference permissible value limits and surrounding obstructions, provides electromagnetic environmental interference field strength testing methods, and clearly the VHF/UHF band radio stations around the high-power transmitter the minimum spacing requirements to protect the source of this standard applies to working at 30 MHz ~ 3 000 MH: band radio stations.

GB/T 25003-2010: Electromagnetic environment protection requirements and measurement methods for VHF/UHF band radio monitoring station

---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.
Electromagnetic enviromennt protection requirements and measurement methods for VHF/UHF band radio monitoring station ICS 33.100 L06 National Standards of People's Republic of China VHF/UHF bands electromagnetic Radio Stations Environmental protection requirements and test methods Issued on. 2010-08-09 2010-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms, definitions, symbols and abbreviations 1 4 electromagnetic interference environment surrounding the allowable value and obstacle limitation requirements 1 5 electromagnetic environment interference field strength measurement method Reference 5 Figure 1 VHF/UHF band radio station electromagnetic interference environment permit requirements limit value 2 2 test system connection diagram in Figure 3 Table 1 emission power source to protect the minimum spacing requirements 2

Foreword

This standard by the National Standardization Technical Committee on Radio Interference (SAC/TC79) proposed. This standard by the National Standardization Technical Committee on Radio Interference. This standard was drafted. SRMC. The main drafters of this standard. Zhou Hongshun, put Xiao Dai, Shen Qin, Cui Man. VHF/UHF bands electromagnetic Radio Stations Environmental protection requirements and test methods

1 Scope

This standard specifies the VHF/UHF band radio station electromagnetic interference environment surrounding the allowable value and obstacle limitation requirements, the provisions Electromagnetic environment interference field strength test methods, and clearly the VHF/UHF band radio stations surrounding the minimum guaranteed power transmission source Support spacing requirements. This standard applies to work in the 30MHz ~ 3000MHz band radio stations.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 13614 shortwave radio direction finding station (station) Electromagnetic environment requirements GB 13617 shortwave radio receiving station (station) Electromagnetic environment requirements GJB72A electromagnetic interference and electromagnetic compatibility terminology GJB2080 receiving point field strength measurement in general 3 Terms, definitions, symbols and abbreviations GB 13614, GB 13617, GJB72A, GJB2080 define the following terms and definitions apply to this document. 3.1 VHF/UHF 30MHz ~ 300MHz and 300MHz ~ 3000MHz frequency range of. 3.2 VHF/UHF band radio stations VHF/UHFbandradiomonitoringstation Set up in a high ground, near the area of \u200b\u200ba certain memory in a variety of VHF/UHF band radio signal and the interference signal, Monitoring and measurement of radio signals to a receiving station. It is mainly undertake quality monitoring VHF/UHF band spectral parameters of the radio station, no Monitoring of radio spectrum efficiency, and the specified signal demodulation designated categories of the modulation signal of radio direction positioning tasks. Its main Unattended mode has two kinds of someone on duty. 3.3 Allowed values \u200b\u200bpermissibleinterferencelimit interference Interference value prediction or testing, the interference value meets or meet international radio interference limit value rules or national standards provisions Claim. 3.4 Protection spacing protectiondistance To protect the radio VHF/UHF band radio stations work properly prescribed launch pad and other kinds of electromagnetic radiation interference Source to the minimum distance VHF/UHF band radio station antenna edge.

4 electromagnetic interference environment in and around the allowable limit value of the obstacle requirements

4.1 Electromagnetic interference environment allowable value requirements To prevent the VHF/UHF band radio stations and reduce false signals appear to performance measurement, environmental monitoring stations can not exceed the electrical field Magnetic interference environment allowed limit value requirements. FIG. 1 is a VHF/UHF band radio station electromagnetic interference environment requirements limit the allowable value. ......

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