As shown by the results of experiments, the communication procedures worked out between SW MODEM and computer serial port can realize data transmission in factual channel.
实验结果表明：编制短波MODEM的通信程序，实现实际信道数据对通，解决了短波数传中存在的几个问题。
WIN32API communication procedures using multithreading in the form driven process for the multi-port serial communications, serial data is sent and received.
WIN32 API通讯程序采用多线程的形式进行驱动，程序中采用多串口进行通讯，有串口数据接受和发送。
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