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ITU proposes that the fraction of time during which a pre-selected threshold is exceeded in the worst-month within a year is referred to as “the annual worst-month time fraction of excess”. This relates directly to situation where accumulation of outages at a specific threshold in one specific month has the worse effect on the transmission link than if compared to the accumulation that were distributed...
Measurements of 26 GHz attenuation due to rain were acquired from a microwave link set-up in Malaysia, a country in one of the most extreme weather with regard to rainfall rates. The data were analyzed with particular interest assessing the performance of Time Diversity as a conceivable fade mitigation technique in broadcast applications. The technique entails a process of retransmission of signals...
Links both terrestrial and Earth-space operating at bands higher than 10GHz inevitably suffer severe signal degradation due to rain fade particularly in the tropics. The study had investigated the likely impacts of rain fading on the links performance at 26GHz frequency, where rain attenuation at 26GHz had been measured for a period of over one year in Malaysia. Studies include in the attempt to quantify...
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