The Satellite Industry Assn. (SIA) urged the FCC to adopt the -10...
The Satellite Industry Assn. (SIA) urged the FCC to adopt the -10 dB interference-to-noise (I/N) ratio that it proposed instead of a 0 dB I/N ratio put forward by XtremeSpectrum for ultra-wideband systems. While Xtreme’s ratio came from the…
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ITU’s Radio Regulations, that ratio is only for short-term interference to determine the coordination distance from terrestrial fixed stations, SIA said. It said Xtreme’s technical statement actually supported a ratio of -6 dB and a correction of methodological errors actually brought the number closer to SIA: “Xtreme’s satellite link degradation calculation was erroneous, because it failed to take international interference standards into account… Taken into account, Xtreme’s analysis would yield an I/N ratio between -10 and -20 dB -- the same I/N ratio that the SIA supports.”