本文通过介绍具体的小型电台框图,叙述微机在信令和信道控制方面的各种功能及原理,并给出实现频率(信道)扫描和数字信令传输的程序流程及框图。 This article introduces the specific small radio block diagram, describes the microcomputer in signaling and channel control of the various functions and principles, and gives the frequency (channel) scan and digital signaling transfer program flow and block diagram.