Attachment Schedule S DOC 4

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

IBFS_SATLOI2011080900146_911458

G eneral: Uni ts Clear Sky Fad ed Em iss ion Designator 1M 22G7W 1M 22G 7W Data Rat e Mbit /s 1.95 1.95 Modulat ion 8-P SK 8-P SK Coding Rat e 0.6642 0.6642 Carrier Bandwidt h M Hz 1. 2 1. 2 Uplink F requency G Hz 29. 75 29. 75 Downl ink Frequency G Hz 19. 95 19. 95 Uplink E lev ation Angle degrees 35 35 Downl ink E levat ion Angle degrees 35 35 Up lin k: Tx E /S A ntenna Diam eter m 0.74 0.74 Tx E /S P ower t o A ntenna W 2. 0 2. 0 Tx E /S A ntenna Gain dBi 45.6 45.6 Tx E /S E IRP per Carrier dBW 48.6 48.6 Tx E /S A ntenna Poi nting Loss dB 0. 5 0. 5 At mos pheric and Rain Losses dB 0. 5 9. 5 Free S pace Loss dB 213. 6 213. 6 G/T t oward Tx E / S dB/ K 19 19 C/I - I ntra-s ys tem dB 20.9 20.9 Do wnl ink: EI RP per Carrier towards Rx E /S dBW 38.8 29.8 At mos pheric and Rain Losses dB 0. 5 6. 2 Free S pace Loss dB 210. 1 210. 1 Rx E/ S A ntenna P oint ing Los s dB 0. 5 0. 5 Rx E/ S A ntenna Di am et er m 3. 5 3. 5 Rx E/ S A ntenna G ain dBi 55.3 55.3 Rx E/ S G/ T dB/ K 31.3 28.8 System Noise T emp (LNA+S ky) K 250 445 C/I - I ntra-s ys tem dB 16.0 16.0 E nd-to-E nd: C/N - Therm al Uplink dB 21.8 12.8 C/I Up - AS I dB 19.4 19.4 C/N - Therm al Downlink dB 27.8 10.6 C/I Down - AS I dB 28.4 19.4 C/(N+I) - Tot al Ac tual dB 12.7 7. 1 C/N - Required dB 7. 1 7. 1 Excess Margin dB 5. 6 0. 0


Document Created: 2011-08-10 13:51:17
Document Modified: 2011-08-10 13:51:17
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