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Standards GB - Chinese national standards - Page 104
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB/T 11299.14-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 3:Methods of measurements for combination of sub-systems--Section four:Measurement for monochrome and colour television transmission
Standard published on 31.3.1989
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GB/T 11299.15-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 3:Methods of measurement for combinations of sub-systems--Section five:Antenna tracking and control
Standard published on 31.3.1989
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GB/T 11299.2-1989
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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
Standard published on 31.3.1989
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GB/T 11299.3-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 1:Measurements common to sub-systems and combinations of sub-systems--Section three:Measurements in the i.f.range
Standard published on 31.3.1989
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GB/T 11299.4-1989
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Methods of measurement for radio equipment used in satelliteearth stations--Part 1:Measurements common to sub-systems and combinations of sub-systems--Section four:Measurements in the base band
Standard published on 31.3.1989
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GB/T 11299.5-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 1:Measurements common to sub-systems and combinationsof sub-systems--Section five:Noise temperature measurements
Standard published on 31.3.1989
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GB/T 11299.6-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 2:Measurements for sub-systems--Section one:General--Section two:Antenna(inculuding feed network)
Standard published on 31.3.1989
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GB/T 11299.7-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 2:Sub-systems measurements--Section three:Low noise amplifier
Standard published on 31.3.1989
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GB/T 11299.8-1989
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Methods of measuremant for radio equipment used in satellite earth stations--Part 2:Measurements for sub-systems--Section four:Up and down converters
Standard published on 31.3.1989
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GB/T 11299.9-1989
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Methods of measurement for radio equipment used in satellite earth stations--Part 2:Measurements for sub-systems--Section seven:Frequency demodulators--Section eight:Frequency demodulators
Standard published on 31.3.1989
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