Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Evan J. Dutton

Abstract: The previously developed Rice-Holmberg (RR) rainrate model and the Dutton-Dougherty (DD) attenuation model for earth-space links, and their subsequent modifications, are reviewed. Predictions are compared with data observed both from the Communications Technology Satellite (CTS) and from radiometric measurements. Then predictions are made at 12.2 and 14.5 GHz for 75 possible U.S.A.-based earth stations pointing to several potential geostationary satellite locations.

Keywords: microwave frequencies; attenuation; prediction confidence limits; rain-rate distributions; satellite-earth communication links

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