ITU member countries were asked to approve studies on five new qu...
ITU member countries were asked to approve studies on five new questions for new ITU-R reports and recommendations dealing with bandwidth requirements for deep space research, emergency communications for human space flight, navigation systems and two-way satellite time and…
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frequency transfer, according to a letter circulated by the Radiocommunication Bureau. The ITU-R study group on science services gave preliminary approval to the new work a meeting Oct. 6 to 14. Spectrum requirements for future deep-space research may outstrip current allocations, said a draft proposal. Studies to be completed by 2012 will gauge how much bandwidth is needed for deep-space research missions through 2030 and compare the figure to current allocations. Interference criteria for wideband deep space to earth downlinks also will be studied. Study results will go to new ITU-R reports and recommendations. A third proposal suggests studying until 2012 timing information from Global Navigation Satellite Systems. The number of GNSS and their augmentations, relying on precise time to meet operational requirements, is increasing. The results will be included in a new ITU-R report. Time and frequency information from “enhanced” LORAN also will be studied until 2012, according to another proposal. The group also will study two-way satellite and frequency transfer with an eye toward updating the existing ITU-R recommendation, said another proposal.