Diversity reception of COMSTAR 19/29 GHz satellite beacons in convective rain climate of Florida, 1978 - 1981
Abstract
Tampa, Florida has about 90 thunderstorm days per year, nearly all in summer, dominated by events tending to occur in afternoon or early evening. Results of 19 GHz downlink rain attenuation diversity studies are reported for a period of 29 months, which includes three rainy seasons. Despite marked month to month differences, long term measurements with the two larger spacings indicates that for separations above about 15 km diversity performance is not sensitive to spacing or orientation. During a fourth rainy season, using a 29 GHz beacon and the 16 km spacing, performance was similar to that predicated by scaling the 19-GHz results of the previous seasons. For rain climates like Tampa's, some form of site diversity will be required for high reliability SHF satellite links.
- Publication:
-
In AGARD Propagation Aspects of Frequency Sharing
- Pub Date:
- March 1983
- Bibcode:
- 1983pafs.agarS....D
- Keywords:
-
- Annual Variations;
- Beacons;
- Convection Clouds;
- Florida;
- Frequency Assignment;
- Rain;
- Thunderstorms;
- Wavelengths;
- Air Currents;
- Beacon Satellites;
- Climate;
- Comstar Satellites;
- Communications and Radar