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1.前言目前,以一般民众为对象的移动通信业务有船舶电话、无线电传呼(采用微型无线电传呼接收机)、列车电话及汽车电话等。无线电传呼业务自1968年以来,已有约124万用户(截至1982年3月底),其普及率居世界第一。船舶、汽车电话也进展顺利。船舶电话网截
1. Introduction At present, mobile communications targeting the general public are ship calls, radio paging (using miniature radio paging receivers), train phones and car phones. There have been about 1.24 million subscribers to the radio paging service since 1968 (up to the end of March 1982), ranking the first in the world in terms of penetration rate. Ship, car phone is also progressing well. Ship telephone network cut