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.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-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-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-T G.212

Hypothetical reference circuits for analogue systems
模拟系统的假想参考电路

1988-11-25

现行

ITU-T G.212

Hypothetical reference circuits for analogue systems
模拟系统的假想参考电路

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-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.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.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.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