September 1973 | Sponsor Report FAA-RD-73-103
Computer Programs for Air/Ground Propagation and Interference Analysis (0.1 to 20 GHz)
Cite This Publication
G. D. Gierhart and M. E. Johnson, “Computer Programs for Air/Ground Propagation and Interference Analysis (0.1 to 20 GHz),” Sponsor Report FAA-RD-73-103, U.S. Department of Commerce, Office of Telecommunications, Institute for Telecommunication Sciences, September 1973.
G. D. Gierhart and M. E. Johnson
Abstract: This report describes three computer programs for use in predicting the service coverage associated with air/ ground radio systems operating in the frequency band from 0.1 to 20 GHz. Power density, station separation, and service volume programs are used to obtain computer-generated microfilm plots. These are: (1) power density available at a particular altitude versus distance from a groundbased transmitting facility; (2) the desired-to-undesired signal ratio, D/U, available at an isotropic receiving antenna versus the distance separating desired and undesired facilities; and (3) constant D/U contours in the altitude versus distance space between the desired and undesired facilities. A detailed discussion of the propagation model involved and program listings are included in the appendices.
Keywords: interference; computer program; air-to-ground propagation; propagation model; transmission loss; DME; frequency sharing; Instrument Landing System (ILS); navigation aids; Tactical Air Navigation (TACAN); VQR
For technical information concerning this report, contact:
Paul M. McKenna
Institute for Telecommunication Sciences
(303) 497-3474
pmckenna@ntia.doc.gov
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