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ITU-R International Telecommunication Union / Radio communication Sector
استانداردهاي اتحاديه بين المللي مخابرات/ ارتباطات راديويي
ITU-R The ITU Radiocommunication Sector (ITU-R) plays a vital role in the global management of the radio-frequency spectrum and satellite orbits - limited natural resources which are increasingly in demand from a large and growing number of services such as fi xed mobile broadcasting amateur space research emergency telecommunications meteorology global positioning systems environmental monitoring and communication services - that ensure safety of life on land at sea and in the skies.
Year : 2018 Count :1862 Category :Electronic Subscribe :Subscribe Explore Documents >>


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