3种无线寻呼系统的由来

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无线寻呼系统,按CCIR的定义是一种传送呼叫信号的单向个人选呼系统,它没有语音,在传输过程中也许不带任何信息,也许传输一些简单的报文。寻呼接收机小巧,携带方便且费用低廉,故发展极其迅速。 目前,寻呼信号无一例外地均采用数字编码信号。英国提出的POCSAG码 A radio paging system, as defined by the CCIR, is a one-way, personal selective call system that transmits a call signal. It has no voice and may carry little or no information during transmission and may carry some simple messages. Paging receiver compact, easy to carry and low cost, so the development is extremely rapid. Currently, paging signals are all digitally encoded. POCSAG code presented by the UK
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