短波是指3～30MHz的无线电波,短波在传输过程中受到传输介质等多方面的限制,而影响到其传播距离和信号强度。本文论述了影响短波传输的因素以及怎样提高短波的传输效果。 Shortwave refers to 3 ~ 30MHz radio waves, shortwave transmission media in the transmission process and other aspects of the restrictions, which affect its propagation distance and signal strength. This article discusses the factors that affect shortwave transmission and how to improve shortwave transmission.