GY/T 135 - 1998.Specifications and methods of measurement on coaxial cable with...

行业标准2023.08.01

GY/T 136-1998.Specifications and methods of measurement on coaxial cable with ba...

行业标准2023.08.01

GY/T 137-1999.Specifications and methods of measurement on system outlets (5~ 10...

行业标准2023.08.01

GY/T 138一1999.Specification and methods of measurement on Combiners ( 5~ 1000MHz...

行业标准2023.08.01

GY/T 139-1999.Specifications and methods of measurement on demodulator used in C...

行业标准2023.08.01

GY/T 140-1999.Specifications and methods of measurement on system outlets (5~100...

行业标准2023.08.01

GY/T 141-1999.Specifications and methods of measurement on scramble/descramble s...

行业标准2023.08.01

GY/T 142-1999.Technical specifications for VHF and UHF terrestrial television br...

行业标准2023.08.01

GY/T 143-2000.Specifications and methods of measurement on AM optical transmitte...

行业标准2023.08.01

GY/T 149-2000.Methods of measurement for satellite digital television receive一on...

行业标准2023.08.01