June 1975 | NTIA Technical Report OT 75-66

Atmospheric Considerations in Radio System Engineering at 10 to 30 GHz

Charles A. Samson

Abstract: The effects of the atmosphere on radio propagation at frequencies of 10 GHz to 30 GHZ include attenuation and depolarization by precipitation, absorption by water vapor and oxygen, and multipath fading related to refractivity gradients in stratified layers. Information is presented on the probable magnitude of the various weather-related effects, considering the differences in radio frequency, geographical location, and climate. The limitations of climatological data are discussed, as well as methods of using the available data in system engineering.

Keywords: precipitation attentuation; microwave relays; radio climatology

For technical information concerning this report, contact:

Charles A. Samson
Institute for Telecommunication Sciences

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.

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