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Choice of standard medium temperature for tropical and equatorial climates: Comparison between radiometric and satellite beacon attenuation data on two 12 GHz links in Brazil

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4 Author(s)
E. Couto de Miranda ; Centre for Telecommun. Studies, Pontificia Univ. Catolica do Rio de Janeiro, Brazil ; M. S. Pontes ; L. A. R. da Silva Mello ; M. P. de Almeida

Results are presented for two years of satellite beacon and radiometric attenuation measurements on two 12 GHz Earth-space links located in Rio de Janeiro, south-eastern Brazil and Belem, northern Brazil. Results suggest that the choice of 285 K for the standard medium temperature, to be used in the calculation of attenuation from radiometric measurements of sky temperature, may underestimate the conditions for tropical and equatorial environments

Published in:

Electronics Letters  (Volume:34 ,  Issue: 21 )