August 1980 | Sponsor Report NTIA FAA-RD-80-1
An Atlas of Basic Transmission Loss For 0.125 to 15.5 GHz
Cite This Publication
M. E. Johnson and G. D. Gierhart, “An Atlas of Basic Transmission Loss For 0.125 to 15.5 GHz,” Sponsor Report NTIA FAA-RD-80-1, U.S. Department of Commerce, National Telecommunications and Information Administration, Institute for Telecommunication Sciences, August 1980.
Abstract: This report provides an atlas of air/ground and air/air basic transmission loss predictions made with the IF-77 (ITS-FAA-1977) propagation model. Sets of predictions are provided for each of six frequencies; i.e., 0.125, 0.3, 1.2, 5.1, 9.4, and 15.5 GHz. Each set contains curves for 90 antenna height combinations where one antenna height varies from 3 to 30,000 m, and the other varies from 300 to 30,000 m. Each height combination is repeated for three time availabilities: 0.05, 0.5, and 0.95. Hence, 1620 transmission loss versus distance curves are provided. The maximum d1stance used iS 1800 km. Propagation factors and application considerations are discussed. Example problems are used to illustrate the various application methods provided.
Keywords: interference; computer program; air-to-ground propagation; propagation model; transmission loss; air/air; frequency sharing; navigation aids
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pmckenna@ntia.doc.gov
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