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xun hu ji de gai pin
Author(s): 
Pages: 230
Year: Issue:  8
Journal: Communications Today

Keyword:  寻呼机射频滤波器接收频率晶振频率接收方式中频滤波器振荡频率改频天线板二倍频;
Abstract: 寻呼机的改频郭建中随着寻呼业务的开放与普及,寻呼台的常规业务中几乎都有“带机入户”这一项。在带机入户的业务里,关键技术就是寻呼机的改频。所谓“改频”,就是改变寻呼机的接收频率。而寻呼机的接收部分就是天线板,只要能收到所需频率上的信号,其后的鉴频、解码...
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