调制解调器编程，用的是AT命令，一个很好的学习例子。

gsm ti35 at指令 用于串口调试-gsm ti35 at command for serial debugging

PN code Generator PN code Generator-PN code Generator PN code Generator PN code Generator

用于电力工业中数据的采集、显示，判断电力故障，可以最大限度地方便用户从采集的数据中获取所需要的信息。并且用到了MODEM通讯，数据远传等。-For the electric power industry in data collection, display, determine the power failure, you can maximize the user-friendly from the data collected to obtain the required information. And used a MODEM communications, data, etc. FarEasTone.

该程序为QPSK解调程序，符号速率2M,采样速率为64M-The program procedures for QPSK demodulation, symbol rate of 2M, the sampling rate of 64M

fpga实现的OFDM和源代码，详细描述了各个部分，有很好的指导作用

通过GSM模块发送接收短消息的程序，可发送免提信息-GSM module send and receive text messages, may send a hands-free information

at命令手册,基本比较详细了,别的就没有什么说的了-at the command manual, the basic detail, and there is nothing else to say on the

这个是TR800 GPRS模块的有关详细资料。里面有用户手册，AT指令。有关与TR800的都有了。-This is the TR800 GPRS module details. There are user manuals, AT commands. With the TR800 have.

CMX868 MODEM 远程通信源码 推荐您参考-CMX868 MODEM remote communication source recommend that you refer to

wavecom AT指令 V9.0 PDF-wavecom AT V9.0 PDF