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2GHz频带数字无线电系统(2S-P3方式),是为使用于需要话务量小的汇接中心与终端局(TC-EO)之间及内航船舶电话基地局的中继电路等研制的,1978年已结束研制工作。今后计划在汇接中心以下的电路中广泛地引入使用。
The 2GHz frequency band digital radio system (2S-P3 method) is designed for use in a trunk circuit between a tandem terminal and a terminal station (TC-EO) requiring a small amount of traffic, and a ship phone base station of the aircraft carrier 1978 has ended its research work. In the future, it is planned to introduce and use it widely in the circuits below the junction center.