SPS Effects on Optical and Radio Astronomy

Deep space communications frequencies at 2300 MHz and a radio astronomy band at 2700 MHz are other frequencies where there would be great danger of satellite-generated interference. The radio astronomy band at 5 GHz would be endangered by the second harmonic of the satellite power signal. The Committee on Radio Frequencies concludes that the potential for harmful interference to radio astronomy is so great that protection from satellite-generated radio interference must be a major design consideration even for the earliest low-powered prototypes of the power satellite system. There may well be other radio services that share these concerns. The proposers of a new program such as this must perform adequate and realistic analyses and that work must be independently confirmed to assure that the public interest is served.

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