辽宁区域地震短波通信网对电磁波在无线通信中的传播特性及频率选择等问题，没有进行深入的理论研究和探讨。笔者将通信工作的实践经验升至理论的高度，研究探讨辽宁区域地震短波通信传播特性和频率选择办法，达到在短波数据通信中，选择最佳频率，增加沟通率的目的 Liaoning Regional Earthquake Shortwave Communication Network has not conducted deep theoretical research and discussion on the propagation characteristics and frequency selection of electromagnetic waves in wireless communications. The author raised the practical experience of communication work to the theoretical height, studied the propagation characteristics and frequency selection methods of short-range earthquake in Liaoning area, and achieved the purpose of selecting the best frequency and increasing the communication rate in short-wave data communication