【摘要】 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，增加沟通率的目的更多还原

【Abstract】 As respects seismic short wave communication network in Liaoning,propagation characteristics and frequency selection of electromagnetic wave in radio communication have never been made a research in theory.It is the purpose to select the best frequency and to increase link rate that we made theoretically reseach on the problems like propagation characteristics and frequency selection and so on.更多还原