GY/T 130-2010.Specification and measurement methods for outdoor optical fiber ca...

行业标准2023.08.01

GY/T 5039-2011.Requi rements for site of satellite earth station transmitting vi...

行业标准2023.08.01

GY/T 124-1995.Specification and mothods of measurement on trunk amplifior used i...

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GY/T 181一2002.Protecting distance of radio radiation interference from AC electr...

行业标准2023.08.01

GY/T 239-2009.Operation and maintenance regulations for radio & TV optical f...

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GY/T 240-2009.Technical requirements and measurement methods of digital cable te...

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GY/T 241-2009.Technical requirements and measurement methods of digital cable te...

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GY/T 123-1995.Specifieation and mothods of measurement on procossor used in CATV...

行业标准2023.08.01

GY/T 220. 5一2008.Mobile multimedia broadcasting一Part 5: Data broadcasting.GY/T 2...

行业标准2023.08.01

GY/T 220. 4-2007.Mobile multimedia broadcasting一Part 4: Emergency broadcasting.G...

行业标准2023.08.01