Fade rates at 13 GHz on earth-space paths

Fade rate distributions for 13 GHz signals on earth-space paths have been compiled from the equivalent of 15 station-years of radiometer data that were recorded in Canada. Fade rates of up to 0.42 dB per second were found with the high fade rates tending to occur when the attenuation was also high. As with attenuation statistics, fade rate statistics for earth-space paths are determined mainly by the climate that is local to the ground station.