Attachment Schedule S DOC 2

This document pretains to SAT-LOI-20110809-00146 for Letter of Intent on a Satellite Space Stations filing.

IBFS_SATLOI2011080900146_911462

G eneral: Un its Cl ear S ky F aded Em issi on Designator 250M G7W 250M G7W Dat a Rat e M bit/ s 450 450 Modulat ion 8-PS K 8-P S K Codi ng Rate 0. 7470 0. 7470 Carrier Bandwidt h MHz 250 250 Upl ink Frequency GHz 29.75 29.75 Downli nk Frequency GHz 19.95 19.95 Upl ink E levat ion Angle degrees 35 35 Downli nk El evat ion A ngle degrees 35 35 Up lin k: Tx E /S A ntenna Diamet er m 3.5 3.5 Tx E /S P ower to A nt enna W 20. 4 512.9 Tx E /S A ntenna Gain dB i 58. 9 58. 9 Tx E /S E IRP per Carrier dB W 72 86. 0 Tx E /S A ntenna Point ing Loss dB 0.5 0.5 At mos pheric and Rai n Loss es dB 0.5 14. 5 Free S pace Los s dB 213.6 213.6 G/T (-2dB contour) dB/ K 20 20 C/ I - I ntra-system dB 20. 8 20. 8 Do wnl ink: EI RP per Carri er towards Rx E /S (-3dB ) dB W 64 64 At mos pheric and Rai n Loss es dB 0.5 5.1 Free S pace Los s dB 210.1 210.1 Rx E/ S Ant enna P ointi ng Loss dB 0.5 0.5 Rx E/ S Ant enna Diam eter m 0. 74 0. 74 Rx E/ S Ant enna G ai n dB i 42. 1 42. 1 Rx E/ S G/ T dB/ K 18. 6 16. 1 Syst em Noise T emp (LNA +S ky) K 225 397 C/ I - I ntra-system dB 20. 1 20. 1 E nd-to-E nd: C/ N - Thermal Uplink dB 22. 8 22. 8 C/ I Up - AS I dB 19. 6 33. 6 C/ N - Thermal Downlink dB 16. 9 9.8 C/ I Down - A S I dB 17. 2 17. 2 C/ (N+I) - Tot al A ctual dB 11. 3 8.3 C/ N - Requi red dB 8.2 8.2 Excess Margin dB 3.1 0.1


Document Created: 2011-08-10 13:52:02
Document Modified: 2011-08-10 13:52:02
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