Attachment ViaSat Attachment

This document pretains to SES-STA-20080711-00928 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2008071100928_682082

Scenario 1a (12.5 W & 0.2 deg) SES AMC-21 Schedule S Link Budget Info Parameters Interferer Victim Victim Victim Victim Victim Victim Victim Victim System 1 - System 1 - System 2 - System 2 - System 3 - System 3 - System 4 - System 4 - No With No With No With No With 56Kbps 1.544 QPSK ¾ MBPS Interferer Interferer Interferer Interferer Interferer Interferer Interferer Interferer Parameter RS QPSK 3/4 UpLink Unit Uplink Unit Carrier designation 100KG1W 1M60G1W Orbital Location W.L. 127 125 125 125 125 125 125 125 125 W.L. Throughput rate, Mbps 0.0562 1.5440 Satellite UL Pattern Disadvantage to E/S dB 0 4 4 4 4 4 4 4 4 dB Symbol rate, MHz 0.0407 1.1 Data Rate kbit/s 256 56.2 56.2 1544 1544 56.2 56.2 1544 1544 kbit/s Uplinks: Symbol Rate / Necessary Bandwidth kBd / kHz 1024 40.7 40.7 1118.2 1118.2 40.7 40.7 1118.2 1118.2 kBd / kHz Transmit Power (dBW) -2 8 Transmitter Power W 12.5 0.65 0.65 5.4 5.4 0.076 0.076 1.97 1.97 W Transmit Loss (dB) -1 -1 Transmit Losses dB 4.71 1 1 1 1 1 1 1 1 dB Antenna diameter 1.8 1.8 Transmit Power to Antenna dBW 6.3 -2.9 -2.9 6.3 6.3 -12.2 -12.2 1.9 1.9 dBW Antenna Gain (dBi) 46.6 46.6 E/S Antenna Gain dBi 33.3 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 dBi Ground Station EIRP (dBW) 43.6 53.6 E/S Uplink EIRP dBW 39.6 43.7 43.7 52.9 52.9 34.4 34.4 48.5 48.5 dBW Uplink Rain Loss (dB) -2 -2 E/S Uplink EIRP Density dBW/Hz -20.5 -2.4 -2.4 -7.6 -7.6 -11.7 -11.7 -11.9 -11.9 dBW/Hz Free Space Loss (dB) -207.5 -207.5 Uplink Rain Loss dB 0 0 0 0 0 0 0 0 0 dB Satellite G/T (dB/K) 0.5 0.5 Off-Axis Angle between Satellites deg 2.00 deg Data Rate (dB-Hz) 47.5 61.9 Off-Axis Gain dBi 19.3 dBi Boltzmann’s Constant (dBW/K-Hz) -228.6 -228.6 Off-Axis EIRP density dBW/Hz -34.6 dBW/Hz Eb/No (dB) 15.7 11.3 Slant Range km 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 km Eb/Io (dB) 16 16 Path and Atmospheric Losses dB 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 dB Total Eb/(No + Io) (dB) For 10-7 12.8 10.0 Satellite Receive Antenna Gain to E/S dBi 33.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 dBi Satellite G/T dB/K 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 dB/K Downlinks: Satellite Noise Temperature K 707.9 707.9 707.9 707.9 707.9 707.9 707.9 707.9 K Satellite Carrier EIRP (dBW) 18.5 28.5 Received Carrier Power, C dBW -134.7 -134.7 -125.5 -125.5 -144.0 -144.0 -129.9 -129.9 dBW Downlink Rain Loss (dB) -3 -3 Thermal Noise Density, No dBW/Hz -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 dBW/Hz Free Space Loss (dB) -206.3 -206.3 Uplink C/No dB-Hz 65.4 65.4 74.6 74.6 56.1 56.1 70.2 70.2 dB-Hz Ground station antenna dia, m 1.2 2.4 Uplink Interference Density, Io dBW/Hz -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 dBW/Hz Ground Station G/T (dB/K) 19.6 25.6 Uplink C/Io dB-Hz 71.6 71.6 80.8 80.8 62.3 62.3 76.4 76.4 dB-Hz Eb/No (dB) 9.9 11.5 Interferer Uplink Interference Density, Io dBW/Hz -209.0 -209.0 -209.0 -209.0 dBW/Hz C/IM 18 18 Interferer Uplink C/Io dB-Hz 74.3 83.5 65.0 79.1 dB-Hz Eb/IModB) 16.6 16.6 Total Uplink C/(No+Io) dB-Hz 64.4 64.0 73.6 73.2 55.1 54.7 69.3 68.8 dB-Hz C/I 15.0 15.0 Total Uplink Eb/No dB 17.0 16.5 11.8 11.3 7.6 7.2 7.4 6.9 dB Eb/Io(ASI) 13.6 13.6 Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Eb/Io (dB) 11.8 11.8 Uplink Margin dB 11.6 11.1 6.4 5.9 2.2 1.8 2.0 1.5 dB Eb/(No + Io) (dB) 7.7 8.7 C/(No+Io) Degradation due to Interferer dB 0.4 0.4 0.4 0.4 dB Total UP/DOWN Eb/(No+Io)(dB) 6.6 6.3 Uplink NTemp Degradation due to Interferer K 90.7 90.7 90.7 90.7 K Required 5.4 5.4 ΔT/T Uplink % 12.8 12.8 12.8 12.8 % Margin 1.2 0.9 Downlink Unit Downlink Unit Satellite Performance Info AMC-21 Satellite DL Pattern Disadvantage to E/S GHz 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 GHz Ant Gain BC 33 Satellite Downlink EIRP dBW 18.7 18.7 27.9 27.9 9.4 9.4 23.5 23.5 dBW Ant Gain EOC 23 Satellite EIRP Density dBW/Hz -27.4 -27.4 -32.6 -32.6 -36.7 -36.7 -37.0 -37.0 dBW/Hz SNT 708 Downlink Rain Loss dB 3 3 3 3 3 3 3 3 dB G/T 4.5 Slant Range km 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 km SFD min -97.5 Path and Atmospheric Losses dB 206.3 206.3 206.3 206.3 206.3 206.3 206.3 206.3 dB ATT Range 21 E/S Antenna Diameter m 1.2 1.2 2.4 2.4 7.3 7.3 7.3 7.3 m Max EIRP 50 E/S Antenna Gain dBi 41.7 41.7 47.7 47.7 57.3 57.3 57.3 57.3 dBi E/S G/T dB/K 19.6 19.6 25.6 25.6 35.3 35.3 35.3 35.3 dB/K E/S Noise Temperature K 160.7 160.7 161.5 161.5 160.1 160.1 160.1 160.1 K Received Carrier Power, C dBW -149.0 -149.0 -133.8 -133.8 -142.6 -142.6 -128.5 -128.5 dBW Downlink Thermal Noise Density, No dBW/Hz -206.5 -206.5 -206.5 -206.5 -206.6 -206.6 -206.6 -206.6 dBW/Hz Downlink C/No dB-Hz 57.6 57.6 72.7 72.7 63.9 63.9 78.1 78.1 dB-Hz DL Intermod Interference Density, IMo dBW/Hz -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 dBW/Hz Downlink C/IMo dB-Hz 64.1 64.1 79.3 79.3 70.5 70.5 84.6 84.6 dB-Hz DL Adj Sat Interference Density, Io (ASI) dBW/Hz -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 dBW/Hz Downlink C/Io (ASI) dB-Hz 58.5 58.5 73.7 73.7 64.9 64.9 79.0 79.0 dB-Hz Downlink C/(No+Io) dB-Hz 54.5 54.5 69.7 69.7 60.9 60.9 75.0 75.0 dB-Hz Downlink Eb/No dB 7.0 7.0 7.8 7.8 13.4 13.4 13.1 13.1 dB Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Downlink Margin dB 1.6 1.6 2.4 2.4 8.0 8.0 7.7 7.7 dB Total Up/Downlink C/(No+Io) dB-Hz 54.1 54.0 68.2 68.1 54.1 53.8 68.2 67.9 dB-Hz Total U/Downlink Eb/No dB 6.6 6.5 6.3 6.2 6.6 6.3 6.3 6.0 dB Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Overall Margin dB 1.2 1.14 0.9 0.82 1.2 0.9 0.9 0.6 dB C/(No+Io) Degradation due to Interferer dB 0.04 0.13 0.3 0.3 dB

Scenario 2a (10 W & 0.2 deg) SES AMC-21 Schedule S Link Budget Info Parameters Interferer Victim Victim Victim Victim Victim Victim Victim Victim System 1 - System 1 - System 2 - System 2 - System 5 - System 5 - System 6 - System 6 - No With No With No With No With 56Kbps 1.544 QPSK ¾ MBPS Interferer Interferer Interferer Interferer Interferer Interferer Interferer Interferer Parameter RS QPSK 3/4 UpLink Unit Uplink Unit Carrier designation 100KG1W 1M60G1W Orbital Location W.L. 127 125 125 125 125 125 125 125 125 W.L. Throughput rate, Mbps 0.0562 1.5440 Satellite UL Pattern Disadvantage to E/S dB 0 4 4 4 4 4 4 4 4 dB Symbol rate, MHz 0.0407 1.1 Data Rate kbit/s 256 56.2 56.2 1544 1544 256 256 512 512 kbit/s Uplinks: Symbol Rate / Necessary Bandwidth kBd / kHz 1024 40.7 40.7 1118.2 1118.2 256.0 256.0 512.0 512.0 kBd / kHz Transmit Power (dBW) -2 8 Transmitter Power W 10 0.65 0.65 5.4 5.4 0.16 0.16 0.3 0.3 W Transmit Loss (dB) -1 -1 Transmit Losses dB 4.71 1 1 1 1 1 1 1 1 dB Antenna diameter 1.8 1.8 Transmit Power to Antenna dBW 5.3 -2.9 -2.9 6.3 6.3 -9.0 -9.0 -6.2 -6.2 dBW Antenna Gain (dBi) 46.6 46.6 E/S Antenna Gain dBi 33.3 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 dBi Ground Station EIRP (dBW) 43.6 53.6 E/S Uplink EIRP dBW 38.6 43.7 43.7 52.9 52.9 37.6 37.6 40.4 40.4 dBW Uplink Rain Loss (dB) -2 -2 E/S Uplink EIRP Density dBW/Hz -21.5 -2.4 -2.4 -7.6 -7.6 -16.4 -16.4 -16.7 -16.7 dBW/Hz Free Space Loss (dB) -207.5 -207.5 Uplink Rain Loss dB 0 0 0 0 0 0 0 0 0 dB Satellite G/T (dB/K) 0.5 0.5 Off-Axis Angle between Satellites deg 2.00 deg Data Rate (dB-Hz) 47.5 61.9 Off-Axis Gain dBi 19.3 dBi Boltzmann’s Constant (dBW/K-Hz) -228.6 -228.6 Off-Axis EIRP density dBW/Hz -35.5 dBW/Hz Eb/No (dB) 15.7 11.3 Slant Range km 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 km Eb/Io (dB) 16 16 Path and Atmospheric Losses dB 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 dB Total Eb/(No + Io) (dB) For 10-7 12.8 10.0 Satellite Receive Antenna Gain to E/S dBi 33.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 dBi Satellite G/T dB/K 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 dB/K Downlinks: Satellite Noise Temperature K 707.9 707.9 707.9 707.9 707.9 707.9 707.9 707.9 K Satellite Carrier EIRP (dBW) 18.5 28.5 Received Carrier Power, C dBW -134.7 -134.7 -125.5 -125.5 -140.8 -140.8 -138.1 -138.1 dBW Downlink Rain Loss (dB) -3 -3 Thermal Noise Density, No dBW/Hz -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 dBW/Hz Free Space Loss (dB) -206.3 -206.3 Uplink C/No dB-Hz 65.4 65.4 74.6 74.6 59.3 59.3 62.0 62.0 dB-Hz Ground station antenna dia, m 1.2 2.4 Uplink Interference Density, Io dBW/Hz -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 dBW/Hz Ground Station G/T (dB/K) 19.6 25.6 Uplink C/Io dB-Hz 71.6 71.6 80.8 80.8 65.5 65.5 68.2 68.2 dB-Hz Eb/No (dB) 9.9 11.5 Interferer Uplink Interference Density, Io dBW/Hz -210.0 -210.0 -210.0 -210.0 dBW/Hz C/IM 18 18 Interferer Uplink C/Io dB-Hz 75.3 84.5 69.2 71.9 dB-Hz Eb/IModB) 16.6 16.6 Total Uplink C/(No+Io) dB-Hz 64.4 64.1 73.6 73.3 58.4 58.0 61.1 60.7 dB-Hz C/I 15.0 15.0 Total Uplink Eb/No dB 17.0 16.6 11.8 11.4 4.3 3.9 4.0 3.7 dB Eb/Io(ASI) 13.6 13.6 Required Eb/No dB 5.4 5.4 5.4 5.4 2.1 2.1 2.1 2.1 dB Eb/Io (dB) 11.8 11.8 Uplink Margin dB 11.6 11.2 6.4 6.0 2.2 1.8 1.9 1.6 dB Eb/(No + Io) (dB) 7.7 8.7 C/(No+Io) Degradation due to Interferer dB 0.3 0.3 0.3 0.3 dB Total UP/DOWN Eb/(No+Io)(dB) 6.6 6.3 Uplink NTemp Degradation due to Interferer K 72.6 72.6 72.6 72.6 K Required 5.4 5.4 ΔT/T Uplink % 10.2 10.2 10.2 10.2 % Margin 1.2 0.9 Downlink Unit Downlink Unit Satellite Performance Info AMC-21 Satellite DL Pattern Disadvantage to E/S GHz 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 GHz Ant Gain BC 33 Satellite Downlink EIRP dBW 18.7 18.7 27.9 27.9 12.6 12.6 15.3 15.3 dBW Ant Gain EOC 23 Satellite EIRP Density dBW/Hz -27.4 -27.4 -32.6 -32.6 -41.5 -41.5 -41.8 -41.8 dBW/Hz SNT 708 Downlink Rain Loss dB 3 3 3 3 3 3 3 3 dB G/T 4.5 Slant Range km 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 km SFD min -97.5 Path and Atmospheric Losses dB 206.3 206.3 206.3 206.3 206.3 206.3 206.3 206.3 dB ATT Range 21 E/S Antenna Diameter m 1.2 1.2 2.4 2.4 7.3 7.3 7.3 7.3 m Max EIRP 50 E/S Antenna Gain dBi 41.7 41.7 47.7 47.7 57.3 57.3 57.3 57.3 dBi E/S G/T dB/K 19.6 19.6 25.6 25.6 35.3 35.3 35.3 35.3 dB/K E/S Noise Temperature K 160.7 160.7 161.5 161.5 160.1 160.1 160.1 160.1 K Received Carrier Power, C dBW -149.0 -149.0 -133.8 -133.8 -139.4 -139.4 -136.7 -136.7 dBW Downlink Thermal Noise Density, No dBW/Hz -206.5 -206.5 -206.5 -206.5 -206.6 -206.6 -206.6 -206.6 dBW/Hz Downlink C/No dB-Hz 57.6 57.6 72.7 72.7 67.2 67.2 69.9 69.9 dB-Hz DL Intermod Interference Density, IMo dBW/Hz -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 dBW/Hz Downlink C/IMo dB-Hz 64.1 64.1 79.3 79.3 73.7 73.7 76.4 76.4 dB-Hz DL Adj Sat Interference Density, Io (ASI) dBW/Hz -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 dBW/Hz Downlink C/Io (ASI) dB-Hz 58.5 58.5 73.7 73.7 68.1 68.1 70.8 70.8 dB-Hz Downlink C/(No+Io) dB-Hz 54.5 54.5 69.7 69.7 64.1 64.1 66.8 66.8 dB-Hz Downlink Eb/No dB 7.0 7.0 7.8 7.8 10.0 10.0 9.7 9.7 dB Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Downlink Margin dB 1.6 1.6 2.4 2.4 4.6 4.6 4.3 4.3 dB Total Up/Downlink C/(No+Io) dB-Hz 54.1 54.0 68.2 68.1 57.3 57.1 60.1 59.8 dB-Hz Total U/Downlink Eb/No dB 6.6 6.5 6.3 6.2 3.3 3.0 3.0 2.7 dB Required Eb/No dB 5.4 5.4 5.4 5.4 2.1 2.1 2.1 2.1 dB Overall Margin dB 1.2 1.15 0.9 0.84 1.2 0.9 0.9 0.6 dB C/(No+Io) Degradation due to Interferer dB 0.03 0.10 0.3 0.3 dB

Scenario 1b (12.5 W & 0.75 deg) SES AMC-21 Schedule S Link Budget Info Parameters Interferer Victim Victim Victim Victim Victim Victim Victim Victim System 1 - System 1 - System 2 - System 2 - System 3 - System 3 - System 4 - System 4 - No With No With No With No With 56Kbps 1.544 QPSK ¾ MBPS Interferer Interferer Interferer Interferer Interferer Interferer Interferer Interferer Parameter RS QPSK 3/4 UpLink Unit Uplink Unit Carrier designation 100KG1W 1M60G1W Orbital Location W.L. 127 125 125 125 125 125 125 125 125 W.L. Throughput rate, Mbps 0.0562 1.5440 Satellite UL Pattern Disadvantage to E/S dB 0 4 4 4 4 4 4 4 4 dB Symbol rate, MHz 0.0407 1.1 Data Rate kbit/s 256 56.2 56.2 1544 1544 56.2 56.2 1544 1544 kbit/s Uplinks: Symbol Rate / Necessary Bandwidth kBd / kHz 1024 40.7 40.7 1118.2 1118.2 40.7 40.7 1118.2 1118.2 kBd / kHz Transmit Power (dBW) -2 8 Transmitter Power W 12.5 0.65 0.65 5.4 5.4 0.076 0.076 1.97 1.97 W Transmit Loss (dB) -1 -1 Transmit Losses dB 4.71 1 1 1 1 1 1 1 1 dB Antenna diameter 1.8 1.8 Transmit Power to Antenna dBW 6.3 -2.9 -2.9 6.3 6.3 -12.2 -12.2 1.9 1.9 dBW Antenna Gain (dBi) 46.6 46.6 E/S Antenna Gain dBi 33.3 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 dBi Ground Station EIRP (dBW) 43.6 53.6 E/S Uplink EIRP dBW 39.6 43.7 43.7 52.9 52.9 34.4 34.4 48.5 48.5 dBW Uplink Rain Loss (dB) -2 -2 E/S Uplink EIRP Density dBW/Hz -20.5 -2.4 -2.4 -7.6 -7.6 -11.7 -11.7 -11.9 -11.9 dBW/Hz Free Space Loss (dB) -207.5 -207.5 Uplink Rain Loss dB 0 0 0 0 0 0 0 0 0 dB Satellite G/T (dB/K) 0.5 0.5 Off-Axis Angle between Satellites deg 1.45 deg Data Rate (dB-Hz) 47.5 61.9 Off-Axis Gain dBi 27.7 dBi Boltzmann’s Constant (dBW/K-Hz) -228.6 -228.6 Off-Axis EIRP density dBW/Hz -26.1 dBW/Hz Eb/No (dB) 15.7 11.3 Slant Range km 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 km Eb/Io (dB) 16 16 Path and Atmospheric Losses dB 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 dB Total Eb/(No + Io) (dB) For 10-7 12.8 10.0 Satellite Receive Antenna Gain to E/S dBi 33.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 dBi Satellite G/T dB/K 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 dB/K Downlinks: Satellite Noise Temperature K 707.9 707.9 707.9 707.9 707.9 707.9 707.9 707.9 K Satellite Carrier EIRP (dBW) 18.5 28.5 Received Carrier Power, C dBW -134.7 -134.7 -125.5 -125.5 -144.0 -144.0 -129.9 -129.9 dBW Downlink Rain Loss (dB) -3 -3 Thermal Noise Density, No dBW/Hz -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 dBW/Hz Free Space Loss (dB) -206.3 -206.3 Uplink C/No dB-Hz 65.4 65.4 74.6 74.6 56.1 56.1 70.2 70.2 dB-Hz Ground station antenna dia, m 1.2 2.4 Uplink Interference Density, Io dBW/Hz -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 dBW/Hz Ground Station G/T (dB/K) 19.6 25.6 Uplink C/Io dB-Hz 71.6 71.6 80.8 80.8 62.3 62.3 76.4 76.4 dB-Hz Eb/No (dB) 9.9 11.5 Interferer Uplink Interference Density, Io dBW/Hz -200.6 -200.6 -200.6 -200.6 dBW/Hz C/IM 18 18 Interferer Uplink C/Io dB-Hz 65.9 75.1 56.6 70.7 dB-Hz Eb/IModB) 16.6 16.6 Total Uplink C/(No+Io) dB-Hz 64.4 62.1 73.6 71.3 55.1 52.8 69.3 66.9 dB-Hz C/I 15.0 15.0 Total Uplink Eb/No dB 17.0 14.6 11.8 9.4 7.6 5.3 7.4 5.0 dB Eb/Io(ASI) 13.6 13.6 Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Eb/Io (dB) 11.8 11.8 Uplink Margin dB 11.6 9.2 6.4 4.0 2.2 -0.1 2.0 -0.4 dB Eb/(No + Io) (dB) 7.7 8.7 C/(No+Io) Degradation due to Interferer dB 2.4 2.4 2.4 2.4 dB Total UP/DOWN Eb/(No+Io)(dB) 6.6 6.3 Uplink NTemp Degradation due to Interferer K 631.8 631.8 631.8 631.8 K Required 5.4 5.4 ΔT/T Uplink % 89.3 89.3 89.3 89.3 % Margin 1.2 0.9 Downlink Unit Downlink Unit Satellite Performance Info AMC-21 Satellite DL Pattern Disadvantage to E/S GHz 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 GHz Ant Gain BC 33 Satellite Downlink EIRP dBW 18.7 18.7 27.9 27.9 9.4 9.4 23.5 23.5 dBW Ant Gain EOC 23 Satellite EIRP Density dBW/Hz -27.4 -27.4 -32.6 -32.6 -36.7 -36.7 -37.0 -37.0 dBW/Hz SNT 708 Downlink Rain Loss dB 3 3 3 3 3 3 3 3 dB G/T 4.5 Slant Range km 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 km SFD min -97.5 Path and Atmospheric Losses dB 206.3 206.3 206.3 206.3 206.3 206.3 206.3 206.3 dB ATT Range 21 E/S Antenna Diameter m 1.2 1.2 2.4 2.4 7.3 7.3 7.3 7.3 m Max EIRP 50 E/S Antenna Gain dBi 41.7 41.7 47.7 47.7 57.3 57.3 57.3 57.3 dBi E/S G/T dB/K 19.6 19.6 25.6 25.6 35.3 35.3 35.3 35.3 dB/K E/S Noise Temperature K 160.7 160.7 161.5 161.5 160.1 160.1 160.1 160.1 K Received Carrier Power, C dBW -149.0 -149.0 -133.8 -133.8 -142.6 -142.6 -128.5 -128.5 dBW Downlink Thermal Noise Density, No dBW/Hz -206.5 -206.5 -206.5 -206.5 -206.6 -206.6 -206.6 -206.6 dBW/Hz Downlink C/No dB-Hz 57.6 57.6 72.7 72.7 63.9 63.9 78.1 78.1 dB-Hz DL Intermod Interference Density, IMo dBW/Hz -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 dBW/Hz Downlink C/IMo dB-Hz 64.1 64.1 79.3 79.3 70.5 70.5 84.6 84.6 dB-Hz DL Adj Sat Interference Density, Io (ASI) dBW/Hz -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 dBW/Hz Downlink C/Io (ASI) dB-Hz 58.5 58.5 73.7 73.7 64.9 64.9 79.0 79.0 dB-Hz Downlink C/(No+Io) dB-Hz 54.5 54.5 69.7 69.7 60.9 60.9 75.0 75.0 dB-Hz Downlink Eb/No dB 7.0 7.0 7.8 7.8 13.4 13.4 13.1 13.1 dB Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Downlink Margin dB 1.6 1.6 2.4 2.4 8.0 8.0 7.7 7.7 dB Total Up/Downlink C/(No+Io) dB-Hz 54.1 53.8 68.2 67.4 54.1 52.1 68.2 66.3 dB-Hz Total U/Downlink Eb/No dB 6.6 6.3 6.3 5.5 6.6 4.6 6.3 4.4 dB Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Overall Margin dB 1.2 0.9 0.9 0.1 1.2 -0.8 0.9 -1.0 dB C/(No+Io) Degradation due to Interferer dB 0.3 0.8 2.0 2.0 dB

Scenario 2b (10 W & 0.75 deg) SES AMC-21 Schedule S Link Budget Info Parameters Interferer Victim Victim Victim Victim Victim Victim Victim Victim System 1 - System 1 - System 2 - System 2 - System 5 - System 5 - System 6 - System 6 - No With No With No With No With 56Kbps 1.544 QPSK ¾ MBPS Interferer Interferer Interferer Interferer Interferer Interferer Interferer Interferer Parameter RS QPSK 3/4 UpLink Unit Uplink Unit Carrier designation 100KG1W 1M60G1W Orbital Location W.L. 127 125 125 125 125 125 125 125 125 W.L. Throughput rate, Mbps 0.0562 1.5440 Satellite UL Pattern Disadvantage to E/S dB 0 4 4 4 4 4 4 4 4 dB Symbol rate, MHz 0.0407 1.1 Data Rate kbit/s 256 56.2 56.2 1544 1544 256 256 512 512 kbit/s Uplinks: Symbol Rate / Necessary Bandwidth kBd / kHz 1024 40.7 40.7 1118.2 1118.2 256.0 256.0 512.0 512.0 kBd / kHz Transmit Power (dBW) -2 8 Transmitter Power W 10 0.65 0.65 5.4 5.4 0.16 0.16 0.3 0.3 W Transmit Loss (dB) -1 -1 Transmit Losses dB 4.71 1 1 1 1 1 1 1 1 dB Antenna diameter 1.8 1.8 Transmit Power to Antenna dBW 5.3 -2.9 -2.9 6.3 6.3 -9.0 -9.0 -6.2 -6.2 dBW Antenna Gain (dBi) 46.6 46.6 E/S Antenna Gain dBi 33.3 46.6 46.6 46.6 46.6 46.6 46.6 46.6 46.6 dBi Ground Station EIRP (dBW) 43.6 53.6 E/S Uplink EIRP dBW 38.6 43.7 43.7 52.9 52.9 37.6 37.6 40.4 40.4 dBW Uplink Rain Loss (dB) -2 -2 E/S Uplink EIRP Density dBW/Hz -21.5 -2.4 -2.4 -7.6 -7.6 -16.4 -16.4 -16.7 -16.7 dBW/Hz Free Space Loss (dB) -207.5 -207.5 Uplink Rain Loss dB 0 0 0 0 0 0 0 0 0 dB Satellite G/T (dB/K) 0.5 0.5 Off-Axis Angle between Satellites deg 1.45 deg Data Rate (dB-Hz) 47.5 61.9 Off-Axis Gain dBi 27.7 dBi Boltzmann’s Constant (dBW/K-Hz) -228.6 -228.6 Off-Axis EIRP density dBW/Hz -27.1 dBW/Hz Eb/No (dB) 15.7 11.3 Slant Range km 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 39500.0 km Eb/Io (dB) 16 16 Path and Atmospheric Losses dB 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 207.5 dB Total Eb/(No + Io) (dB) For 10-7 12.8 10.0 Satellite Receive Antenna Gain to E/S dBi 33.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 29.0 dBi Satellite G/T dB/K 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 dB/K Downlinks: Satellite Noise Temperature K 707.9 707.9 707.9 707.9 707.9 707.9 707.9 707.9 K Satellite Carrier EIRP (dBW) 18.5 28.5 Received Carrier Power, C dBW -134.7 -134.7 -125.5 -125.5 -140.8 -140.8 -138.1 -138.1 dBW Downlink Rain Loss (dB) -3 -3 Thermal Noise Density, No dBW/Hz -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 -200.1 dBW/Hz Free Space Loss (dB) -206.3 -206.3 Uplink C/No dB-Hz 65.4 65.4 74.6 74.6 59.3 59.3 62.0 62.0 dB-Hz Ground station antenna dia, m 1.2 2.4 Uplink Interference Density, Io dBW/Hz -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 -206.3 dBW/Hz Ground Station G/T (dB/K) 19.6 25.6 Uplink C/Io dB-Hz 71.6 71.6 80.8 80.8 65.5 65.5 68.2 68.2 dB-Hz Eb/No (dB) 9.9 11.5 Interferer Uplink Interference Density, Io dBW/Hz -201.6 -201.6 -201.6 -201.6 dBW/Hz C/IM 18 18 Interferer Uplink C/Io dB-Hz 66.8 76.0 60.8 63.5 dB-Hz Eb/IModB) 16.6 16.6 Total Uplink C/(No+Io) dB-Hz 64.4 62.5 73.6 71.7 58.4 56.4 61.1 59.1 dB-Hz C/I 15.0 15.0 Total Uplink Eb/No dB 17.0 15.0 11.8 9.8 4.3 2.3 4.0 2.0 dB Eb/Io(ASI) 13.6 13.6 Required Eb/No dB 5.4 5.4 5.4 5.4 2.1 2.1 2.1 2.1 dB Eb/Io (dB) 11.8 11.8 Uplink Margin dB 11.6 9.6 6.4 4.4 2.2 0.2 1.9 -0.1 dB Eb/(No + Io) (dB) 7.7 8.7 C/(No+Io) Degradation due to Interferer dB 2.0 2.0 2.0 2.0 dB Total UP/DOWN Eb/(No+Io)(dB) 6.6 6.3 Uplink NTemp Degradation due to Interferer K 505.5 505.5 505.5 505.5 K Required 5.4 5.4 ΔT/T Uplink % 71.4 71.4 71.4 71.4 % Margin 1.2 0.9 Downlink Unit Downlink Unit Satellite Performance Info AMC-21 Satellite DL Pattern Disadvantage to E/S GHz 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 GHz Ant Gain BC 33 Satellite Downlink EIRP dBW 18.7 18.7 27.9 27.9 12.6 12.6 15.3 15.3 dBW Ant Gain EOC 23 Satellite EIRP Density dBW/Hz -27.4 -27.4 -32.6 -32.6 -41.5 -41.5 -41.8 -41.8 dBW/Hz SNT 708 Downlink Rain Loss dB 3 3 3 3 3 3 3 3 dB G/T 4.5 Slant Range km 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 41400.0 km SFD min -97.5 Path and Atmospheric Losses dB 206.3 206.3 206.3 206.3 206.3 206.3 206.3 206.3 dB ATT Range 21 E/S Antenna Diameter m 1.2 1.2 2.4 2.4 7.3 7.3 7.3 7.3 m Max EIRP 50 E/S Antenna Gain dBi 41.7 41.7 47.7 47.7 57.3 57.3 57.3 57.3 dBi E/S G/T dB/K 19.6 19.6 25.6 25.6 35.3 35.3 35.3 35.3 dB/K E/S Noise Temperature K 160.7 160.7 161.5 161.5 160.1 160.1 160.1 160.1 K Received Carrier Power, C dBW -149.0 -149.0 -133.8 -133.8 -139.4 -139.4 -136.7 -136.7 dBW Downlink Thermal Noise Density, No dBW/Hz -206.5 -206.5 -206.5 -206.5 -206.6 -206.6 -206.6 -206.6 dBW/Hz Downlink C/No dB-Hz 57.6 57.6 72.7 72.7 67.2 67.2 69.9 69.9 dB-Hz DL Intermod Interference Density, IMo dBW/Hz -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 -213.1 dBW/Hz Downlink C/IMo dB-Hz 64.1 64.1 79.3 79.3 73.7 73.7 76.4 76.4 dB-Hz DL Adj Sat Interference Density, Io (ASI) dBW/Hz -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 dBW/Hz Downlink C/Io (ASI) dB-Hz 58.5 58.5 73.7 73.7 68.1 68.1 70.8 70.8 dB-Hz Downlink C/(No+Io) dB-Hz 54.5 54.5 69.7 69.7 64.1 64.1 66.8 66.8 dB-Hz Downlink Eb/No dB 7.0 7.0 7.8 7.8 10.0 10.0 9.7 9.7 dB Required Eb/No dB 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 dB Downlink Margin dB 1.6 1.6 2.4 2.4 4.6 4.6 4.3 4.3 dB Total Up/Downlink C/(No+Io) dB-Hz 54.1 53.9 68.2 67.6 57.3 55.7 60.1 58.4 dB-Hz Total U/Downlink Eb/No dB 6.6 6.4 6.3 5.7 3.3 1.6 3.0 1.3 dB Required Eb/No dB 5.4 5.4 5.4 5.4 2.1 2.1 2.1 2.1 dB Overall Margin dB 1.2 1.0 0.9 0.3 1.2 -0.5 0.9 -0.8 dB C/(No+Io) Degradation due to Interferer dB 0.2 0.7 1.6 1.6 dB


Document Created: 2008-12-09 11:22:05
Document Modified: 2008-12-09 11:22:05
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