Simultaneous rain attenuation observations in the three Sirio Italian stations: statistical results after five years´ activity

The simultaneity of rain attenuation experienced by very distant Earth terminals was recently recognised as an important topic to be investigated in view of future planning of advanced satellite systems using a common on-board resource (extra on-board power, steerable spot beams, burst length control etc.). Results obtained from the analysis of simultaneous fadings at 11.6 GHz, during the SIRIO SHF experiment, by the three Italian earth stations are presented here and briefly discussed.