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YD/T 828.28-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 2 Measurement of Terrestrial Radio-Relay Systems Section 8: Adaptive Equalizer 174.0 via email in 1~3 business day valid
YD/T 828.25-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 2 Measurement of Terrestrial Radio-Relay Systems Section 5: Digital Signal Processing Subsystem 174.0 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
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 234.0 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 174.0 via email in 1~3 business day valid
GB/T 4958.6-1988 Methods of measurement for equipment used in terrestrial radio-relay systems-Part 2:Measurements for sub-systems-Section Five Frequency demodulators 110.0 via email in 1~3 business day abolished
GB/T 9040-1988 General specifications for 4GHz 960 telephone channel/colour TV analog radio relay communication equipments 650.0 via email in 1~3 business day abolished
YD 2012-1994 Technical specification of microwave relay communication equipment installation and acceptance 1290.0 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 345.0 via email in 1~3 business day abolished
YD/T 744-1995 Technical Requirement and Test Method for Mid-Capacity Digital Microwave Relay Communication System at 34Mbit/S 180.0 via email in 1~3 business day valid
GB/T 13159-2008 Networking specifications for digital radio systems 300.0 via email in 1~5 business day valid
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
YD/T 633-1993 IF Modem Equipment Operating at 34Mbit/S 240.0 via email in 1~3 business day abolished
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 4958.7-1988 Methods of measurement for equipment used in terrestrial radio-relay systems-Part 2:Measurements for sub-systems-Section Seven Radio transmitters 110.0 via email in 1~3 business day abolished
YD/T 1010-1999 General technical specifications of STM-0 microwave communication system 300.0 via email in 1~3 business day abolished
T/ITS 0022-2015 Electronic toll collection―Dedicated short range communication via email in business day valid
GB 12638-1990 Safety requirements of radiation for microwave and ultrashort wave communication equipment 90.0 via email in 1~3 business day valid
YD/T 828.210-1996 Measuring Method of Equipments Used in Digital Microwave Transmission System Part 2 Measurement of Terrestrial Radio-Relay Systems Section 10: Total System Performances 120.0 via email in 1~3 business day valid
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 abolished
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