产生OFDM信号,能量是100watts，2048 个载波，512个cycle prefix

用vc编的短消息收发，小巧实用，欢迎大家查看。注明：是用mfc遍的。-with vc series of the Short Message transceiver, a small and practical, welcoming everyone to see. Annotated : is the mfc times.

RFC3026:ENUM与IETF/ISOC的联络

一个典型的modbus应用，它是主设备程序，值得一看-Modbus a typical application, it is the main equipment procedures, see

QAM调制的基本原理 QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数 字的组合。QAM的优点是具有更大的符号率，从而可获得更高的系统效率。通常由符号率 确定占用带宽。因此每个符号的比特（基本信息单位）越多，效率就越高。-QAM modulation of the basic principles are in fact QAM modulation amplitude modulation and phase modulation of the portfolio. Phase+ margin status defines a combination of numbers or figures. The advantage of QAM symbols are greater rate, thus the system efficiency will be higher. Symbol rate is usually determined by the occupied bandwidth. Thus each bit symbols (basic units of information) the more the higher the efficiency.

目前网上只能搜集到skype的英文或繁体中文开发文档，我转换出了简体中文文档以方便大家阅读！-At present, only collected skype online in English or Traditional Chinese to develop the document, I convert a document to facilitate English reading everyone!

OBD2 SAE Protocol J1979 Doc

省公话通讯系统,-provincial public telephone communication system,

AnyDATA的CDMA模块AT指令集，很有用的AnyDATA CDMA modem AT CMD-v32-AnyDATA

FSK调制,采用直接查表法,生成一个周期的正弦波-FSK modulation, the use of direct look-up table method, to generate a sine wave cycle

这是关于短信协议的电子书，我费了老大劲才找到的资料，供大家分享。希望能对搞GPRS通信和嵌入式的朋友有所帮助-This is the agreement on the text message e-books, I charge the oldest frozen find information for everyone to share. The hope is to engage GPRS communications and embedded friends help