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Provides telephone system managers, telecommunications sales professionals, and students with nontechnical, easy-to-understand explanations of the major aspects of today s telecommunications systems. DLC: Telephone.

delphi开发的基于TCP协议的文件传输程序。包含服务器端和客户端程序，可以互相传送。(delphi development based on the TCP protocol file transfer program. Includes server and client program, you can send each other.)

udp协议介绍 是一个无连接的协议，快速等(udp protocol described is a connectionless protocol, fast, etc.)

线性调频信号的时域 频域 模糊度函数的设计(The design of the chirp signal time domain frequency domain ambiguity function)

软件无线电体系结构规范。软件无线电开发设计者必备的资料！(Specification for SW arch in SDR)

虚拟串口服务程序V1.26VCOM1.26，用于对串口通讯的学习。(Virtual Serial Port service program V1.26VCOM1.26, serial communication for learning.)

Test for DatagramChannel Source Code for Andriod.

说明：  GPS串口通信程序，新建了一个数据库ACCESS，在显示当前GPS信息的同时可以存储以前记录过的信息，保存在数据库中，便于以后查阅。当前GPS信息包括：时间，经度，纬度，速度，真实航向以及磁偏移(GPS serial port communication program, a database of new ACCESS, show the current GPS information can be stored at the same time the information previously recorded, stored in a database for easy access later. The current GPS information including: time, longitude, latitude, speed, true course and magnetic offset)

this is for calculate qam and it is very good to practice so good u can play

PDA 电表IEC62056应用开发原程序代码,应该有较大参考价值,可以直接运行.(PDA IEC62056 CODE CAN RUN ,HAVE VERY MUCH VALUE TO IEC62056 DEVELOPER USE BY C#.)