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

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 S.354

Video bandwidth and permissible noise level in the hypothetical reference circuit for the fixed-satellite service
固定卫星业务假设参考电路中的视频带宽和允许噪声级

1974-07-01

现行

ITU-R S.354

Video bandwidth and permissible noise level in the hypothetical reference circuit for the fixed-satellite service
固定卫星业务假设参考电路中的视频带宽和允许噪声级

1974-07-01

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 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.393

Allowable noise power in the hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex
使用频分复用的电话无线中继系统的假设参考电路中的允许噪声功率

1982-07-01

现行

ITU-R F.393

Allowable noise power in the hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex
使用频分复用的电话无线中继系统的假设参考电路中的允许噪声功率

1982-07-01

现行

ITU-T G.441

Permissible circuit noise on frequency-division multiplex radio-relay systems
频分多路无线电中继系统的允许电路噪声

1988-11-25

现行

ITU-T G.441

Permissible circuit noise on frequency-division multiplex radio-relay systems
频分多路无线电中继系统的允许电路噪声

1988-11-25

现行

ITU-R F.392

Hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex with a capacity of more than 60 telephone channels
使用频分多路复用（容量超过60个电话信道）的电话用无线电中继系统的假想参考电路

1963-07-01

现行

ITU-R F.392

Hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex with a capacity of more than 60 telephone channels
使用频分多路复用（容量超过60个电话信道）的电话用无线电中继系统的假想参考电路

1963-07-01