provincial public telephone communication system,

PSK31方式通信C++编写的原代码,可以通过声音传递数据.-PSK31 way communication C++ Prepared the original code, you can transfer data through the voice.

采用labview编写的I2C通信程序，几乎可以通用的喔-prepared by the I2C communications procedures, almost generic oh

VC6 下用Mscomm控件，可以实现对DTR的控制-VC6 using Mscomm control can be achieved for the control of DTR

用VHDL语言编写的异步通信控制器源代码程序-ASCC Communication Control System Compiled With VHDL

网口扫描分析软件,可以帮助初学网络编程的人了解TCP/IP协议栈-Network port scanning analysis software, can help people to understand the beginner Network Programming TCP/IP protocol stack

通过添加MapObjects组建,完成图层添加,图层管理,图层操作等一些最基本的功能-MapObjects formed by adding to complete the added layer, layer management, layer operations, such as some of the most fundamental function of

LAPB协议的实现源码，是x.25的基础。也可以作为LAPM纠错协议的参考-LAPB protocol implemented source is the basis of X.25. LAPM also can be used as a reference FEC agreement

J2ME开发指南，伟大的技术总结

用vb写的移动测距，效率很高的，希望大家喜欢-Using vb to write mobile location, efficient, and I hope you like

移动通信基本知识:从通信网的角度看，移动网可以看成是有线通信网的延伸，它由无线和有线两部分组成。无线部分提供用户终端的接入，利用有限的频率资源在空中可靠地传送话音和数据；有线部分完成网络功能，包括交换、用户管理、漫游、鉴权等，构成公众陆地移动通信网PLMN。从陆地移动通信的具体实现形式来分主要有模拟移动通信和数字移动通信这两部种。-Basic knowledge of mobile communications: From the perspective of communication networks, mobile networks can be seen as an extension of wired communication network, which is both wireless and wired components. Part of user terminals to provide wireless access, frequency of use of limited resources in the air and reliable transmission of voice and data wired part of the completion of network functions, including switching, subscriber management, roaming, authentication and so on, constitute a public land mobile communication network PLMN. From land-based mobile communications to the specific forms of the main points have analog and digital mobile communications that two kinds of mobile communication.