GA/T 1255-2016 PDF English


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GA/T 1255-2016490 Add to Cart Auto, < 3 mins Police digital trunking communication system Technical requirements and measurement methods for radio frequency equipment Valid

GA/T1255-2016 (GAT1255-2016): PDF in English

GA/T 1255-2016 GA PUBLIC SECURITY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 33.060.01 A 90 Police Digital Trunking Communication System - Technical Requirements and Measurement Methods for Radio Frequency Equipment ISSUED ON: SEPTEMBER 8, 2016 IMPLEMENTED ON: SEPTEMBER 8, 2016 Issued by: The Ministry of Public Security of the People’s Republic of China Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Terms, Definitions, Symbols and Abbreviations ... 7 3.1 Terms and Definitions ... 7 3.2 Symbols and Abbreviations ... 10 4 Classification ... 10 5 Requirements ... 11 5.1 RF Performance Requirements ... 11 5.2 Electromagnetic Compatibility Requirements ... 13 5.3 Electrical Safety Requirements ... 14 5.4 Environmental Adaptability Requirements ... 14 6 RF Performance Parameter Test Conditions and Test Methods ... 17 6.1 RF Performance Parameter Test Conditions ... 17 6.2 Transmitter RF Performance Parameter Test Methods... 19 6.3 Receiver RF Performance Parameter Test Methods ... 26 7 Electromagnetic Compatibility Test Methods ... 34 7.1 Conducted Disturbance ... 34 7.2 Radiated Disturbance ... 34 7.3 Electrostatic Discharge Immunity ... 34 7.4 RF Electromagnetic Field Radiation Immunity ... 34 7.5 Electrical Fast Transient Pulse Group (Power Port) Immunity ... 35 7.6 Surge (Power Port) (Impact) Immunity ... 35 7.7 Conducted Disturbance Immunity of RF Induction (Power Port) ... 35 7.8 Immunity to Voltage Sags, Short Interruptions and Voltage Variations (Power Port) ... 35 8 Electrical Safety Test Methods ... 35 9 Environmental Adaptability Test Methods ... 35 9.1 Test Methods for Mechanical Environmental Adaptability ... 35 9.2 Test Methods for Climate and Environmental Adaptability ... 37 9.3 Test Methods for Enclosure Protection Level ... 40 9.4 Test Methods for Adaptability to Hazardous Environments ... 40 Appendix A (normative) Test Sites and Site Layout Guide for Radiation Test ... 41 Appendix B (normative) General Test Methods for Radiated Spurious Emissions... 44 Police Digital Trunking Communication System - Technical Requirements and Measurement Methods for Radio Frequency Equipment 1 Scope This Standard stipulates the terms, definitions, symbols and abbreviations, classification, requirements and measurement methods for radio frequency equipment of the police digital trunking communication system. This Standard is applicable to the transceiver stations, mobile stations and portable stations of the police digital trunking communication system, as well as their related systems and other equipment. 2 Normative References The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 2423.1-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Tests A: Cold GB/T 2423.2-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Tests B: Dry Heat GB/T 2423.3-2006 Environmental Testing for Electric and Electronic Products - Part 2: Testing Method - Test Cab: Damp Heat, Steady State GB/T 2423.5-1995 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ea and Guidance: Shock GB/T 2423.8-1995 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ed: Free Fall GB/T 2423.10-2008 Environmental Testing for Electric and Electronic Products - Part 2: Tests Methods - Test Fc: Vibration (Sinusoidal) GB/T 2423.17-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ka: Salt Mist The electrical fast transient pulse group (power port) immunity of the transceiver station shall comply with the requirements of test level 3 in GB/T 17626.4-2008. During the test, the transceiver station allows temporary loss or reduction of functions or performance. After the test is stopped, the transceiver station shall be able to resume normal operating state by itself without human intervention. 5.2.6 Surge (power port) (impact) immunity The surge (impact) immunity of the transceiver station using AC power supply shall comply with the requirements of test level 3 in GB/T 17626.5-2008. The surge (impact) immunity of the transceiver station using DC power supply shall comply with the requirements of test level 2 in GB/T 17626.5-2008. During the test, the transceiver station allows temporary loss or reduction of functions or performance. After the test is stopped, the transceiver station shall be able to resume normal operating state by itself without human intervention. The surge (impact) immunity of the mobile station shall comply with the requirements of test level 2 in GB/T 17626.5-2008. During the test, the mobile station allows temporary loss or reduction of functions or performance. After the test is stopped, the mobile station shall be able to resume normal operating state by itself without human intervention. 5.2.7 Immunity to conducted disturbances induced by RF field (power port) The immunity to conducted disturbances induced by RF field of the transceiver station and mobile station shall comply with the requirements of test level 3 in GB/T 17626.6-2008. During the test, the transceiver station and mobile station allow temporary loss or reduction of functions or performance. After the test is stopped, the transceiver station and mobile station shall be able to resume normal operating state by themselves without human intervention. 5.2.8 Immunity to voltage sags, short interruptions and voltage variations The transceiver station powered by AC power grid is subjected to 40% voltage sag for 10 cycles, 70% voltage sag for 25 cycles and short interruption for 250 cycles. During the test, the transceiver station allows temporary loss or reduction of functions or performance. After the test is stopped, the transceiver station shall be able to resume normal operating state by itself without human intervention. 5.3 Electrical Safety Requirements It shall comply with the requirements of Chapter 12 of GA/T 1056-2013. 5.4 Environmental Adaptability Requirements 5.4.1 Test criteria and configuration requirements In the environmental adaptability test, basic electrical performance (carrier output power, carrier frequency error and static sensitivity) is used as the performance criterion after the test. In the environmental adaptability test of the portable station, the basic electrical performance test uses the portable station’s standard battery. 5.4.2 Mechanical environmental adaptability 5.4.2.1 Impact After the mobile station, portable station and transceiver station are tested according to the method specified in 9.1.1, the appearance of the mobile station, portable station and transceiver station and their internal structural units shall not produce permanent structural deformation, mechanical damage, electrical failure and loose fastening parts. The internal circuits, circuit boards, interfaces and other plug-ins of the mobile station, portable station and transceiver station shall not fall off, become loose or have poor contact. After the test, the mobile station and portable station shall be able to communicate normally, the transceiver station shall be able to transmit and receive normally, and the basic electrical performance shall not change. 5.4.2.2 Free fall After the portable station is tested according to the method specified in 9.1.2, the appearance of the portable station and its internal structural units shall not produce permanent structural deformation or mechanical damage. During the test, the portable station battery is allowed to fall off or become loose. After the test, the portable station can operate normally, and the basic electrical performance will not change. 5.4.2.3 Vibration After the transceiver station, mobile station and portable station are tested according to the method specified in 9.1.3, the appearance of the transceiver station and mobile station and the portable station and its internal structural units shall not produce permanent structural deformation, mechanical damage, electrical failure and loose fastening parts. The internal circuits, circuit boards, interfaces and other plug-ins of the transceiver station, mobile station and portable station shall not fall off, become loose or have poor contact. After the test, the mobile station and portable station shall be able to communicate normally, and the basic electrical performance shall not change. The transceiver station shall be able to transmit and receive normally, and the basic electrical performance shall not change. 5.4.3 Climate and environmental adaptability The transceiver station, mobile station and portable station shall be tested for climate and environmental adaptability as specified in Table 3. During the test, there shall be no state change, the transceiver station shall be able to transmit and receive normally, and the mobile station and portable station shall be able to communicate normally in digital direct mode. After the test, the transceiver station, mobile station and portable station shall be able to start up normally, the transceiver station shall be able to transmit and receive normally, and the mobile station and portable station shall be able to communicate normally in digital trunking mode and digital direct mode. After the salt spray test, there shall be no rust on the surface of the transceiver station, mobile station and portable station, the transceiver station shall be able 6 RF Performance Parameter Test Conditions and Test Methods 6.1 RF Performance Parameter Test Conditions 6.1.1 Test condi.......
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