短波通信是一种传统的远程通信，也是唯一的一种廉价、机动、灵活、顽存性好的远程通信手段。短波通信从徘徊到发展，直到至今，一改过去那种仅能传输模拟报、话，无抗干扰能力，固定频率工作，固定传输速率，单一调制体制等陈旧落后的状态，而成为融话音、数据、图像等通信业 Shortwave communication is a kind of traditional long-distance communication, it is the only kind of cheap, maneuvering, flexible, perseverance long-range communication means. Shortwave communications have been hovering from development to development so far, changing the old state of the past that only analog messages, speech, anti-interference ability, fixed-frequency operation, fixed transmission rate and single modulation system can be transmitted, Data, images and other communications