January 1974 | Technical Memorandum OT TM 174
January 1975 radio propagation predictions for United States Information Agency Voice of America broadcast coverage, Volume I
Cite This Publication
Margo Leftin, “January 1975 radio propagation predictions for United States Information Agency Voice of America broadcast coverage, Volume I,” Technical Memorandum OT TM 174, U.S. Department of Commerce, Office of Telecommunications, Institute for Telecommunication Sciences, January 1974.
Margo Leftin
Abstract: HF radio propagation predictions are calculated for Voice of America circuits using the OT/ITS prediction program. Some of the parameters given are maximum usable frequency, the optimum traffic frequency, the lowest useful frequency, available signal-to-noise ratio, and circuit reliability.
Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.
For questions or information on this or any other NTIA scientific publication, contact the ITS Publications Office at ITSinfo@ntia.gov or 303-497-3572.