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人类利用无线电技术已有100多年的历史,但从来没有象今天这样迅速发展。据了解,我国无线电台站数量,每年以20%以上的速度迅速增长,到1994年底,全国各类无线电台站总数已达400万左右,即使这样仍然满足不了国民经济发展和社会生活各方面的需要。无线电通信的重要组成部分是移动通信,主要包括:蜂窝移动电话系统、无线寻呼系统、无绳电话系统、无线集群系统、无中心选址系统以及卫星移动通信系统等,其中以无线寻呼业务使用最为广泛、目前
Humankind has been using radio technology for more than 100 years, but it has never experienced such rapid development as it is today. It is understood that the number of radio stations in our country increases rapidly by more than 20% each year. By the end of 1994, the total number of all kinds of radio stations in the country had reached about 4 million. Even so, it still can not meet the requirements of national economic development and all aspects of social life need. An important part of radio communication is mobile communication, which mainly includes cellular mobile phone system, radio paging system, cordless telephone system, wireless trunking system, centerless location system and satellite mobile communication system. Among them, the radio paging service The most extensive, at the moment