Long Distance Propagation of Hf Radio Waves (Paperback)
The study of very long-distance and around-the-world propagation of HF radio waves becomes more urgent in connection with the problems of longĀ distance ground-based radio communications,communications with spaceĀ crafts and satellites,satellite-to-satellite communications,around-the-world radar scanning,around-the-world sounding of the ionosphere,etc. At preĀ sent,these investigations have acquired particular interest because transmitĀ ters which make it possible to intentionally modify the ionospher