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Chinese Standard Classification
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| Position: Search | valid to be valid superseded to be superseded abolished to be abolished |
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GB/T 12650-1990 Performance requirements and methods of testing for OMEGA system and differential OMEGA system receiving equipments for ships
Issued on: 1990-01-02 Price(USD): 410.0 |
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GB/T 12639-1990 Methods of in-orbit testing for communication satellite payload performances
Issued on: 1990-1-2 Price(USD): 270.0 |
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GB/T 12572-1990 Frequency tolerance for transmitter
Issued on: 1990-01-02 Price(USD): 160.0 |
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GB/T 12563-1990 Requirements of terrestrial interface for domestic satellite communications earth stations
Issued on: 1990-1-2 Price(USD): 180.0 |
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GB/T 12566-1990 Interface for signal chain of sound and television broadcasting transmitting equipments
Issued on: 1990-1-2 Price(USD): 110.0 |
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QJ 2454-1993
Issued on: 1993-03-20 Price(USD): 90.0 |
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GB 12449-1990 Interface for using dedicated interconnections between sound and television broadcasting transmitting equipment and supervisory equipment
Issued on: 1990-8-2 Price(USD): 180.0 |
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GB/T 12364-1990 Networking technical requirement for the domestic satellite communication systems
Issued on: 1990-06-16 Price(USD): 250.0 |
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GB/T 12185-1990 General specification for exciter used to MW AM broadcast transmitter
Issued on: 1990-2-1 Price(USD): 120.0 |
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GB/T 12193-1990 Methods of measurement for radio receivers employing F3E emission used in the mobile services
Issued on: 1990-02-01 Price(USD): 460.0 |
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GB/T 12192-1990 Methods of measurement for radio transmitters employing F3E emission used in the mobile services
Issued on: 1990-2-1 Price(USD): 480.0 |
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GB/T 12046-1989 Designation of radio emissions and determination of necessary bandwidths
Issued on: 1989-12-29 Price(USD): 250.0 |
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GB/T 11443.1-1989 Domestic satellite communication earth stations-General technical requirements-Part 1: Common performance
Issued on: 1989-6-10 Price(USD): 120.0 |
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GB/T 11444.3-1989 Transmitter, receiver and ground communication equipment used in domestic satellite communication earth stations-Technical requirements-Part 3: Equipment for television/frequency mod
Issued on: 1989-6-10 Price(USD): 210.0 |
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GB 11443.1-1989 Domestic satellite communication earth stations-General technical requirements-Part 1:Common performance
Issued on: 1989-06-10 Price(USD): 150.0 |
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GB/T 11443.4-1989 Domestic satellite communication earth stations-Gereral technical requirements-Part 4:Television/frequency modulation carrier channel
Issued on: 1989-06-10 Price(USD): 160.0 |
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GB 11411-1989 Technical specifications and operational requirements for the systems of promulgation of navigational and meteorological warnings and urgent information
Issued on: 1989-07-04 Price(USD): 180.0 |
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GB 11410-1989 Technical bases of HFBC coverage
Issued on: 1989-07-04 Price(USD): 240.0 |
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GB 11299.10-1989 Methods of measurement for radio equipment used in satellite earth stations; Part 2: Measurements for sub-systems; Section ten:High-power amplifier
Issued on: 1989-03-01 Price(USD): 90.0 |
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GB 11299.2-1989 Methods of measurement for radio equipment used in satellite earth stations; Part 1: Measurements common to sub-systems and combinations of sub-systems; Section two:Measurements in the r.f. range
Issued on: 1989-03-01 Price(USD): 210.0 |
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