Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 746-1995 Technical Requirement and Measuring Method for Point-To-Multipoint Microwave Communication Systems 330.0 via email in 1~3 business day valid
GB/T 4958.12-1988 Methods of measurement for equipment used in terrestrial radio-relay systems-Part 3:Simulated systems-Section Four Measurements for f.d.m. transmission 120.0 via email in 1~3 business day valid
YD/T 745-1995 Technical Requirements and Test Method for Large-capacity Digital Microwave Relay Communication System at 6GHz140Mbit/s 375.0 via email in 1~5 business day abolished
GB/T 4958.2-1988 Methods of measurement for equipment used in terrestrial radio-relay systems-Part 3: Simulated systems-Section Two Measurements in the basehand 30.0 via email in 1~3 business day valid
GB/T 9408-1988 Specifications for colour TV modulation equipment(1TV+1 sound program)-Used in long-haul terestrial analog radio-relay systems 150.0 via email in 1~3 business day valid
YD/T 828.27-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 2 Measurement of Terrestrial Radio-relay Systems Section 7: Diversity Rearrange and Synthesis Equipment 270.0 via email in 1~3 business day valid
YD/T 828.13-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 1 General Measurement of Terrestrial Radio-relay Systems and Satellite Communication Earth Stations Section 3: Transmission Characteristics 195.0 via email in 1~3 business day valid
GB/T 9404-1999 Technical specifications of feeder systems for microwaverelay communication 150.0 via email in 1~3 business day valid
GB/T 13857-1992 for microwave communication system remote supervisory and control equipment 120.0 via email in 1~3 business day valid
GB/T 16650-1996 General specification for microwave communication systems with TDM/FDMA point-to-multipoint 165.0 via email in 1~3 business day valid
YD/T 828.29-1997 Methods of measurement for equipment used in digital microwave transmission systems Part 2: Measurements on terrestrial radio-relay systems 135.0 via email in 1~3 business day valid
GB/T 4958.11-1988 Methods of measurement for equipment used in terestrial radio-relay systems-Part 3:Simulated systems-Section Three Measurements for monochrome and colour television transmission 360.0 via email in 1~3 business day valid
YD/T 792-1995 Technical Requirement and Measuring Method for Networking of 8ghz Small-Capacity Digital Microwave Communication Equipment 210.0 via email in 1~3 business day abolished
GB/T 4958.10-1988 Methods of measurement for equipment used in terrestrial radio-relay systems-Part 3:Simulated systems-Section One General 90.0 via email in 1~3 business day valid
YD/T 830-1996 Technical Requirement and Measuring Method for 2×34Mbit/S Digital Microwave Relay Communication System 270.0 via email in 1~3 business day abolished
YD/T 828.26-1997 Methods of measurement for equipment used in digital microwave transmission systems Part 2:Measurements on terrestrial radio-relay systems 150.0 via email in 1~3 business day valid
YD/T 828.21-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 2 Measurement of Terrestrial Radio-Relay Systems Section 1: General Rules 60.0 via email in 1~3 business day valid
GB/T 12640-1990 Methods of measurement for the digital microwave radio relay communication equipments 450.0 via email in 1~3 business day valid
GB 14391-2009 requirements for satellite emergency position - Indicating radio beacons 180.0 via email in 1~3 business day valid
YD/T 828.22-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 2 Measurement of Terrestrial Radio-Relay Systems Section 2: Antenna 210.0 via email in 1~3 business day valid
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