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tion. e shi to the south-east direction was already re-ported from the analysis of initial-checkout[7], but the magnitude fell well within the required specications. e shi is assumed to have grown larger with time. By the same token, the center of the Kinki beam has presumably shied to the south-west direction from its nominal posi-tion. is estimation is derived from the observation that the deviation between measured and forecast values is found greater in the Shikoku measurement points than in the Kinki area.Table 3 summarizes the data obtained in the Kyushu area, and Table 4 shows those obtained in West Japan along the coast of the Sea of Japan. e measured values at all points in these two areas also showed that the link margins are positive values. ese data conrm the feasibility of 24 Mbps mode communication.TabT4　Results from link margin measurement (West Japan - along the coast of Sea of Japan)Measurement pointTottori(Amarube)Amanohashi-dateKyoutangoWakasa(Mikata goko)FukuiKyoutangoFukuiKanazawaWajima(Senmaida)ToyamaBeam Kinki BeamChubu BeamBeam center and measurement point elongation [deg]0.16140.1610.18080.21850.28990.32730.23520.15980.23520.1435Up-linkAntenna gain [dBi]at measurement point45.845.844.943.238.637.746.947.744.148.2Link margin [dB](predictive)4.714.823.92.22-2.4-3.255.956.763.157.24Link margin [dB](measured)4.94.161.5-0.8-0.175.22.28.4Deviation(measured - predictive)0.19-0.722.1-0.721.63.151.05-1.56-0.951.16Down-linkAntenna gain [dBi]at measurement point46.846.846.445.643.842.24646.344.846.6Link margin [dB](predictive)7.027.637.26.444.63.16.97.215.77.5Link margin [dB](measured)11.4118.69.95.32.97.4107.77.1Deviation(measured - predictive)4.383.371.43.460.7-0.20.52.792-0.4TabT3　Results from link margin measurement (Kyushu area)Measurement pointShikokuChuoBeppuBeppuHyugaMiyazakiKanoyaYamakawaIchikiKushikinoIzumiBeam Chu-Shikoku beamKyushuBeam center and measurement point elongation [deg]0.1983 0.1635 0.2590 0.2044 0.1597 0.1262 0.1339 0.0694 0.0143 Up-linkAntenna gain [dBi]at measurement point45.4 47.0 40.7 43.8 45.7 46.9 46.6 48.2 48.8 Link margin [dB](predictive)4.466.06-0.20 2.914.826.025.737.327.91Link margin [dB](measured)5.86.80.33.15.85.77.29.39.3Deviation(measured - predictive)1.340.740.50.190.98-0.321.471.981.39Down-linkAntenna gain [dBi]at measurement point45.4 46.0 44.4 45.7 46.5 47.0 46.9 47.6 47.8 Link margin [dB](predictive)6.346.945.346.667.477.977.878.568.76Link margin [dB](measured)8.7 9.3 7.0 8.4 9.7 10.6 11.4 11.8 12.1 Deviation(measured - predictive)2.362.361.661.742.232.633.533.243.343 Ultra-High-Speed Satellite Communication Technology164　　　Journal of the National Institute of Information and Communications Technology Vol. 64 No. 2 (2017)