A thorough and fully annotated discussion of Near Vertical Incidence Skywave (NVIS) is available in the research paper, “Radio Communication via Near Vertical Incidence Skywave Propagation: An Overview,” by Ben A. Witvliet, PE5B/5R8DS, and Rosa Ma Alsina-Pagès.
First investigated in the 1920s, NVIS propagation was rediscovered during World War II as “an essential means to establish communication...
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First investigated in the 1920s, NVIS propagation was rediscovered during World War II as “an essential means to establish communication...
Continue reading...