DIURNAL VARITIONS OF 11.2 GHZ ATTENUATION ON A SATELLITE PATH IN INDONESIA

Three sets of data, each representing the annual statistics of diurnal variation of rain attenuation, are presented for a three year K(u)-ba nd satellite beacon propagation experiment in Surabaya, Indonesia. The experiment was carried out by the Eindhoven University of Technology and the Institute of Technology Sepuluh Nopember in a co-operative pro gram with INTELSAT. The results show that a substantially higher perce ntage of excess attenuation falls in the afternoon (17.00 - 23.00 loca l time) than would be given by the average distribution. These data ha ve implications for satellite business services, broadcasting, and tel ephony services, where it is of interest to know whether there is a si gnificantly enhanced, or reduced, risk of link degradations in any giv en clock hour.