Fixed Radio Systems; Point-to-point equipment; Parameters for radio systems for the transmission of STM-1 digital signals operating in the 18 GHz frequency band with channel spacing of 55 MHz and 27,5 MHz
固定无线电系统;点对点设备;在18GHz频带上传输STM-1数字信号的无线电系统参数 信道间隔为55MHz和27.5MHz
The present document specifies parameters for high capacity STM-1 digital radio-relay systems designed to operate in
the 17,7 GHz to 19,7 GHz band. The channel spacing between adjacent co-polar channels shall be 55 MHz or
27,5 MHz. Operation in the Adjacent Channel Co-Polarization (ACCP) mode for class 4 systems and class 5 systems as
defined below with orthogonal polarizations or in the alternated cross-polar mode is foreseen. Additionally for class
4 systems, operation in the Co-Channel Dual Polarized (CCDP) mode with orthogonal polarization is also foreseen. The
present document covers both single and multi-channel systems.