Author(s): Abobakr Sultan Ahmed and Abdulaziz Al-Ruwas
Article publication date: 2005-06-01
Vol. 23 No. 2 (yearly), pp. 57-61.
DOI:
139

Keywords

Atmospheric Propagation, Link availability, Non Geostationary, Aridzone.

Abstract

Earth-to-space links are affected by several atmospheric impairments which may have different degrees of correlation or statistical dependence. For non-Geostationary Satellite Orbit (GSO) links operating at Ka-band in the arid climate of the Kingdom of Saudi Arabia (KSA), it is found that attenuation due to rain is the dominant source of propagation impairment (about 78% at 80 elevation and 0.01% time is exceeded). The effect of dust contributes the minimum source (less than 0.2%). However, the contribution of all other sources other than rain cannot be neglected (about 32%).