Attachment Schedule S document

This document pretains to SAT-MOD-20060821-00091 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2006082100091_521923

NOISE BUDGET REFERENCE CALCULATION Uplink Downlink Beam AOR USA Carrier parameters D1 D2 D3 D4 D5 D6 D7 Data Rate (Mbps) 0.064 0.384 1.544 2.048 9.216 45 69.64 FEC 0.682 0.682 0.875 0.682 0.75 0.75 0.795 Modulation QPSK QPSK QPSK QPSK QPSK QPSK QPSK C/(N+I) - Total Required (dB) 7.4 7.4 10.8 7.4 9.9 5.6 8.7 Uplink parameters D1 D2 D3 D4 D5 D6 D7 Uplink Frequency (MHz) 14125 14125 14125 14125 14125 14125 14125 Tx antenna Input power (dBW) 0.48 8.29 13.25 15.55 21.67 28.56 30.22 Input power density (dBW/Hz) -47 -47 -47 -47 -47 -47 -47 Tx Antenna Diameter (Metres) 4.50 1.80 1.20 2.40 2.40 4.50 7.00 Tx Antenna Efficiency 0.65 0.65 0.65 0.65 0.65 0.65 0.65 Tx Antenna Gain (dB) 54.6 46.6 43.1 49.1 49.1 54.6 58.4 Mispointing loss (dB) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Atmospheric loss (dB) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Uplink Path loss (dB) 207.8 207.8 207.8 207.8 207.8 207.8 207.8 Uplink Rain Attenuation (dB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Max. Satellite antenna G/T (dB/K) 3.0 3.0 3.0 3.0 3.0 3.0 3.0

Edge of coverage AOR (dB) 4.0 4.0 4.0 4.0 4.0 4.0 4.0 (C/I)Up-Intrasystem (dB) 30.0 30.0 30.0 30.0 30.0 30.0 30.0 (C/I)Up-ASI (dBW) 32.2 24.2 20.7 26.7 26.7 32.2 36.0 - Boltzmanns constant -228.6 -228.6 228.6 -228.6 -228.6 -228.6 -228.6 (C/N)Uplink Thermal (dB) 26.5 18.6 15.1 21.1 21.1 26.5 30.4 C/(Nthermal+NASI+Nintrasystem) (dB) 24.2 17.3 13.9 19.6 19.6 24.2 26.6 Downlink parameters D1 D2 D3 D4 D5 D6 D7 Downlink Frequency (MHz) 12000 12000 12000 12000 12000 12000 12000 Beam peak EIRP density (dBW/Hz) -26 -26 -26 -26 -26 -26 -26 Downlink EIRP/Carrier (dBW) 21.48 29.29 34.25 36.55 42.67 49.56 51.22 Edge of coverage USA (dB) 3.0 6.0 6.0 6.0 6.0 3.0 6.0 Downlink EIRP/Carrier at EOC (dBW) 18.48 23.29 28.25 30.55 36.67 46.56 45.22 Rx E/S Antenna Diameter (Metres) 0.90 1.80 4.50 1.80 2.40 0.90 1.80 Rx Antenna Efficiency 0.65 0.65 0.65 0.65 0.65 0.65 0.65 Rx Antenna Gain (dB) 39.2 45.2 53.2 45.2 47.7 39.2 45.2 Rx System Noise temp (K) 110.0 110.0 110.0 110.0 110.0 110.0 110.0 Rx E/S G/T (dB/K) 18.8 24.8 32.8 24.8 27.3 18.8 24.8 Antenna mispointing error (dB) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Atmospheric loss (dB) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Downlink Path loss (dB) 206.4 206.4 206.4 206.4 206.4 206.4 206.4 Downlink Rain Attenuation (dB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 (C/I)Dn Intra-system (dB) 30.0 30.0 30.0 30.0 30.0 30.0 30.0 (C/I)Down-ASI (dB) 16.9 22.9 30.9 22.9 25.4 16.9 22.9 - Boltzmanns constant -228.6 -228.6 228.6 -228.6 -228.6 -228.6 -228.6

(C/N)Downlink Thermal 11.1 14.2 22.1 14.2 16.7 11.2 14.2 C/(Nthermal+NASI+Nintrasystem) 10.1 13.5 21.0 13.5 15.9 10.1 13.5 End-to-End D1 D2 D3 D4 D5 D6 D7 (C/N+I) - Total Actual (dB) 9.9 12.0 13.1 12.6 14.4 9.9 13.3 (C/N+I) - Total Required(dB) 7.4 7.4 10.8 7.4 9.9 5.6 8.7 Margin (dB) 2.5 4.6 2.3 5.2 4.5 4.3 4.6


Document Created: 2006-08-23 13:17:24
Document Modified: 2006-08-23 13:17:24
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