现行

ITU-T G.215

Hypothetical reference circuit of 5000 km for analogue systems
模拟系统5000 km的假设参考电路

1988-11-25

现行

ITU-T G.215

Hypothetical reference circuit of 5000 km for analogue systems
模拟系统5000 km的假设参考电路

1988-11-25

现行

ITU-R S.352

Hypothetical reference circuit for systems using analogue transmission in the fixed-satellite service
固定卫星业务中使用模拟传输系统的假设参考电路

1982-07-01

现行

ITU-R S.352

Hypothetical reference circuit for systems using analogue transmission in the fixed-satellite service
固定卫星业务中使用模拟传输系统的假设参考电路

1982-07-01

现行

ITU-R F.390

Definitions of terms and references concerning hypothetical reference circuits and hypothetical reference digital paths for radio-relay systems
无线电中继系统的假想参考电路和假想参考数字路径的术语和参考文献的定义

1982-07-01

现行

ITU-R F.390

Definitions of terms and references concerning hypothetical reference circuits and hypothetical reference digital paths for radio-relay systems
无线电中继系统的假想参考电路和假想参考数字路径的术语和参考文献的定义

1982-07-01

现行

ITU-R F.557

Availability objective for radio-relay systems over a hypothetical reference circuit and a hypothetical reference digital path
假设参考电路和假设参考数字路径上无线电中继系统的可用性目标

1997-09-30

现行

ITU-R F.557

Availability objective for radio-relay systems over a hypothetical reference circuit and a hypothetical reference digital path
假设参考电路和假设参考数字路径上无线电中继系统的可用性目标

1997-09-30

现行

ITU-T J.11

Hypothetical reference circuits for sound-programme transmissions
声音节目传输的假想参考电路

1988-11-25

现行

ITU-T J.11

Hypothetical reference circuits for sound-programme transmissions
声音节目传输的假想参考电路

1988-11-25

现行

ITU-R F.555

Permissible noise in the hypothetical reference circuit of radio-relay systems for television
电视无线电中继系统假想参考电路中的容许噪声

1997-05-28

现行

ITU-T G.431

Hypothetical reference circuits for frequency-division multiplex radio-relay systems
频分多路无线电中继系统的假设参考电路

1988-11-25

现行

ITU-T G.431

Hypothetical reference circuits for frequency-division multiplex radio-relay systems
频分多路无线电中继系统的假设参考电路

1988-11-25

现行

ITU-R F.555

Permissible noise in the hypothetical reference circuit of radio-relay systems for television
电视无线电中继系统假想参考电路中的容许噪声

1997-05-28

现行

ITU-T G.223

Assumptions for the calculation of noise on hypothetical reference circuits for telephony
电话用假想参考电路噪声计算的假设

1988-11-25

现行

ITU-T G.223

Assumptions for the calculation of noise on hypothetical reference circuits for telephony
电话用假想参考电路噪声计算的假设

1988-11-25

现行

ITU-R M.547

Noise objectives in the hypothetical reference circuit for systems in the maritime mobile-satellite service
海上移动卫星服务系统假设参考电路中的噪声目标

1978-07-01

现行

ITU-R M.547

Noise objectives in the hypothetical reference circuit for systems in the maritime mobile-satellite service
海上移动卫星服务系统假设参考电路中的噪声目标

1978-07-01

现行

ITU-T G.442

Radio-relay system design objectives for noise at the far end of a hypothetical reference circuit with reference to telegraphy transmission
无线电中继系统参考电报传输的假设参考电路远端噪声的设计目标

1988-11-25

现行

ITU-T G.442

Radio-relay system design objectives for noise at the far end of a hypothetical reference circuit with reference to telegraphy transmission
无线电中继系统参考电报传输的假设参考电路远端噪声的设计目标

1988-11-25