2024-11-22 3.128.226.128
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB 12638-1990 Safety requirements of radiation for microwave and ultrashort wave communication equipment 294.0 via email in 1~3 business day valid,,1991-10-1
GB 14391-1993 Performance requirement for satellite emergency position indicating radio beacon 100.0 via email in 1~3 business day abolished2010-09-01,2010-9-1,1993-12-1
GB 14391-2009 requirements for satellite emergency position - Indicating radio beacons 180.0 via email in 1~3 business day superseded,2022-3-1,2010-9-1
GB 14391-2021 Performance requirements for satellite emergency position indicating radio beacons 285.0 via email in 1~3 business day valid,,2022-3-1
GB 9051-1988 Technical specification for 2GHz band transceivers used in analogue radio-relay systems 255.0 via email in 1~3 business day valid,,1989-1-1
GB 9404-1988 Technical specifications for 4GHz feeder systems 75.0 via email in 1~3 business day superseded,2000-3-1,1989-1-1
GB 9405.1-1988 General specification for electrodynamic cone loudspeaker of direct radiator type 180.0 via email in 1~3 business day superseded,1995-12-1,1989-1-1
GB 9406-1988 Specifications for 960 telephone channel modulation equipment--Used in long-haul terestrial analog radio-relay systems 165.0 via email in 1~3 business day valid,,1989-1-1
GB 9407-1988 Specifications for 960 telephone channel demodulation equipment--Equipment used in long-haul terestrial analog radio-relay systems 135.0 via email in 1~3 business day valid,,1989-1-1
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,,1991-10-1
GB/T 13159-1991 Networking specifications for digital radio-relay sy-stems 250.0 via email in 1~3 business day abolished2009-05-01,2009-5-1,1992-6-1
GB/T 13159-2008 Networking specifications for digital radio systems 300.0 via email in 1~5 business day valid,,2009-5-1
GB/T 13503-1992 Generic specification for digital microwave radio relay communication equipment 240.0 via email in 1~3 business day valid,,1993-5-1
GB/T 13856-1992 for 4GHz band microwave service channel equipment 150.0 via email in 1~3 business day abolished2017-12-15,,1993-5-1
GB/T 13857-1992 for microwave communication system remote supervisory and control equipment 120.0 via email in 1~3 business day abolished2017-12-15,,1993-5-1
GB/T 13858.1-1992 for colour TV modulation and demodulation equipment(1TV+4 sound program)used in middle distance terrestrial analog radio - Relay systems 210.0 via email in 1~3 business day abolished2017-12-15,,1993-5-1
GB/T 13858.2-1992 Specification for 300 telephone channels modulation and demodulation equipment used in middle distance terrestrial analog radio-relay systems 120.0 via email in 1~3 business day abolished2005-10-14,,1993-5-1
GB/T 15841-1995 Networking specification for digitalmicrowave communication equipments2~8GHz digital microwave transceiver 150.0 via email in 1~3 business day valid,,1996-6-1
GB/T 16650-1996 General specification for microwave communication systems with TDM/FDMA point-to-multipoint 160.0 via email in 1~3 business day valid,,1997-7-1
GB/T 29239-2012 Energy efficiency metrics and measurement method for mobile communication equipment—Base station 360.0 via email in 1~5 business day superseded,2021-7-1,2013-6-1
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GB 12638-1990 Safety requirements of radiation for microwave and ultrashort wave communication equipment 
  Issued on: 1990-12-28   Price(USD): 294.0
GB 14391-1993 Performance requirement for satellite emergency position indicating radio beacon 
  Issued on: 1993-04-20   Price(USD): 100.0
GB 14391-2009 requirements for satellite emergency position - Indicating radio beacons 
  Issued on: 2009-11-15   Price(USD): 180.0
GB 14391-2021 Performance requirements for satellite emergency position indicating radio beacons  
  Issued on: 2021-08-10   Price(USD): 285.0
GB 9051-1988 Technical specification for 2GHz band transceivers used in analogue radio-relay systems 
  Issued on: 1988-12-10   Price(USD): 255.0
GB 9404-1988 Technical specifications for 4GHz feeder systems 
  Issued on: 1988-03-28   Price(USD): 75.0
GB 9405.1-1988 General specification for electrodynamic cone loudspeaker of direct radiator type 
  Issued on:   Price(USD): 180.0
GB 9406-1988 Specifications for 960 telephone channel modulation equipment--Used in long-haul terestrial analog radio-relay systems 
  Issued on: 1988-06-23   Price(USD): 165.0
GB 9407-1988 Specifications for 960 telephone channel demodulation equipment--Equipment used in long-haul terestrial analog radio-relay systems 
  Issued on: 1988-03-28   Price(USD): 135.0
GB/T 12640-1990 Methods of measurement for the digital microwave radio relay communication equipments 
  Issued on: 1990-1-2   Price(USD): 450.0
GB/T 13159-1991 Networking specifications for digital radio-relay sy-stems 
  Issued on: 1991-09-16   Price(USD): 250.0
GB/T 13159-2008 Networking specifications for digital radio systems 
  Issued on: 2008-10-29   Price(USD): 300.0
GB/T 13503-1992 Generic specification for digital microwave radio relay communication equipment 
  Issued on: 1992-6-20   Price(USD): 240.0
GB/T 13856-1992 for 4GHz band microwave service channel equipment 
  Issued on: 1992-10-6   Price(USD): 150.0
GB/T 13857-1992 for microwave communication system remote supervisory and control equipment 
  Issued on: 1992-10-6   Price(USD): 120.0
GB/T 13858.1-1992 for colour TV modulation and demodulation equipment(1TV+4 sound program)used in middle distance terrestrial analog radio - Relay systems 
  Issued on: 1992-10-6   Price(USD): 210.0
GB/T 13858.2-1992 Specification for 300 telephone channels modulation and demodulation equipment used in middle distance terrestrial analog radio-relay systems 
  Issued on: 1992-10-06   Price(USD): 120.0
GB/T 15841-1995 Networking specification for digitalmicrowave communication equipments2~8GHz digital microwave transceiver 
  Issued on: 1995-01-02   Price(USD): 150.0
GB/T 16650-1996 General specification for microwave communication systems with TDM/FDMA point-to-multipoint 
  Issued on: 1996-01-02   Price(USD): 160.0
GB/T 29239-2012 Energy efficiency metrics and measurement method for mobile communication equipment—Base station 
  Issued on: 2012-12-31   Price(USD): 360.0
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