Attachment Schedule S DOC 6

This document pretains to SAT-LOA-20080416-00085 for Application to Launch and Operate on a Satellite Space Stations filing.

IBFS_SATLOA2008041600085_799324

EXHIBIT 12: LINK BUDGETS UPLINK BEAM INFORMATION Uplink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Uplink Frequency (MHz) 13750 – 14500 13750 – 14500 13750 – 14500 13750 – 14500 13750 – 14500 13750 - 14500 Uplink Beam Polarization Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Uplink Relative Contour Level (dB) -8 -8 -8 -8 -8 -8 Uplink Contour G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Uplink SFD (dBW/m2) -75.5 -75.5 -75.5 -75.5 -75.5 -75.5 Rain Rate (mm/hr) 95 95 95 95 95 95 DOWNLINK BEAM INFORMATION Downlink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Downlink Frequency (MHz) 11700 – 12200 11700 – 12200 11700 – 12200 11700 – 12200 11700 – 12200 11700 - 12200 Downlink Beam Polarization Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Downlink Relative Contour Level (dB) -4 -4 -4 -4 -4 -4 Downlink Contour EIRP (dBW) 50.2 50.2 50.2 50.2 50.2 50.2 Rain Rate (mm/hr) 95 95 95 95 95 95 ADJACENT SATELLITE 1 Satellite 1 Orbital Location 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 ADJACENT SATELLITE 2 Satellite 2 Orbital Location 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 CARRIER INFORMATION Carrier ID 1 1 1 2 2 2 Emission Designation 36M0F3F 36M0F3F 36M0F3F 36M0G7W 36M0G7W 36M0G7W Information Rate (kbps) n/a n/a n/a 36863 36863 36863 Carrier Modulation TV/FM TV/FM TV/FM QPSK QPSK QPSK Peak to Peak Bandwidth of EDS (MHz) 4 4 4 n/a n/a n/a Code Rate n/a n/a n/a 3/4xRS 3/4xRS 3/4xRS Occupied Bandwidth (kHz) 36000 36000 36000 30133 30133 30133 Allocated Bandwidth (kHz) 36000 36000 36000 36000 36000 36000 Required C/N (dB) 10 10 10 6.1 6.1 6.1 UPLINK EARTH STATION Earth Station Diameter (meters) 6.1 6.1 6.1 6.1 6.1 6.1 Earth Station Gain (dBi) 56.9 56.9 56.9 56.9 56.9 56.9 Earth Station Elevation Angle 20 20 20 20 20 20 DOWNLINK EARTH STATION Earth Station Diameter (meters) 11 11 11 3 3 3 Earth Station Gain (dBi) 60.4 60.4 60.4 49.2 49.2 49.2 Earth Station G/T, Clear Sky (dB/K) 38.0 38.0 34.5 26.7 26.7 23.8 Earth Station Elevation Angle 20 20 20 20 20 20 LINK FADE TYPE Clear Sky Uplink Fade Downlink Fade Clear Sky Uplink Fade Downlink Fade UPLINK PERFORMANCE Uplink Earth Station EIRP (dBW) 72.3 72.3 72.3 74.1 74.1 74.1 Uplink Path Loss, Clear Sky (dB) -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 Uplink Rain Attenutation (dB) 0.0 -3.9 0.0 0.0 -9.2 0.0 Satellite G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -75.6 -75.6 -75.6 -74.8 -74.8 -74.8 Uplink C/N (dB) 21.4 17.4 21.4 23.9 14.8 23.9 DOWNLINK PERFORMANCE Downlink EIRP per Carrier (dBW) 39.0 37.8 39.0 40.8 40.1 40.8 Antenna Pointing Error (dB) -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 Downlink Path Loss, Clear Sky (dB) -205.9 -205.9 -205.9 -205.9 -205.9 -205.9 Downlink Rain Attenuation (dB) 0.0 0.0 -6.8 0.0 0.0 -3.9 Earth Station G/T, Clear Sky (dB/K) 38.0 38.0 34.5 26.7 26.7 23.8 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -75.6 -75.6 -75.6 -74.8 -74.8 -74.8 Downlink C/N (dB) 23.6 22.4 13.3 14.8 14.1 8.1 COMPOSITE LINK PERFORMANCE C/N Uplink (dB) 21.4 17.4 21.4 23.9 14.8 23.9 C/N Downlink (dB) 23.6 22.4 13.3 14.8 14.1 8.1 C/I Intermodulation (dB) n/a n/a n/a n/a n/a n/a C/I Uplink Co-Channel (dB)* 25.9 22.0 25.9 27.0 17.8 27.0 C/I Downlink Co-Channel (dB)* 25.9 24.7 25.9 27.0 26.3 27.0 C/I Uplink Adjacent Satellite 1 (dB) 20.7 16.8 20.7 23.3 14.1 23.3 C/I Downlink Adjacent Satellite 1 (dB) 28.2 26.9 28.2 19.1 18.4 19.1 C/I Uplink Adjacent Satellite 2 (dB) 20.7 16.8 20.7 23.3 14.1 23.3 C/I Downlink Adjacent Satellite 2 (dB) 28.5 27.3 28.5 20.3 19.6 20.3 C/(N+I) Composite (dB) 14.4 11.0 11.0 11.4 7.1 7.1 Required System Margin (dB) -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 Net C/(N+I) Composite (dB) 13.4 10.0 10.0 10.4 6.1 6.1 Minimum Required C/N (dB) -10.0 -10.0 -10.0 -6.1 -6.1 -6.1 Excess Link Margin (dB) 3.4 0.0 0.0 4.3 0.0 0.0 Number of Carriers 1 1 1 1 1 1 Carrier Density Levels Uplink Power Density (dBW/Hz) -50.6 -50.6 -50.6 -57.6 -57.6 -57.6 Downlink EIRP Density At Beam Peak -23.0 -24.2 -23.0 -30.0 -30.7 -30.0 * Note: The C/I level is adjusted depending on the signal level and transponder mode of operation.

EXHIBIT 12: Ku-BAND LINK BUDGETS (continued) UPLINK BEAM INFORMATION Uplink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Uplink Frequency (MHz) 13750 – 14500 13750 – 14500 13750 – 14500 13750 – 14500 13750 – 14500 13750 - 14500 Uplink Beam Polarization Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Uplink Relative Contour Level (dB) -8 -8 -8 -8 -8 -8 Uplink Contour G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Uplink SFD (dBW/m2) -79.5 -79.5 -79.5 -79.5 -79.5 -79.5 Rain Rate (mm/hr) 95 95 95 95 95 95 DOWNLINK BEAM INFORMATION Downlink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Downlink Frequency (MHz) 11700 – 12200 11700 – 12200 11700 – 12200 11700 – 12200 11700 – 12200 11700 - 12200 Downlink Beam Polarization Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Downlink Relative Contour Level (dB) -4 -4 -4 -4 -4 -4 Downlink Contour EIRP (dBW) 50.2 50.2 50.2 50.2 50.2 50.2 Rain Rate (mm/hr) 95 95 95 95 95 95 ADJACENT SATELLITE 1 Satellite 1 Orbital Location 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 ADJACENT SATELLITE 2 Satellite 2 Orbital Location 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 CARRIER INFORMATION Carrier ID 3 3 3 5 5 5 Emission Designation 10M3G7W 10M3G7W 10M3G7W 100KG7W 100KG7W 100KG7W Information Rate (kbps) 6000 6000 6000 64 64 64 Carrier Modulation QPSK QPSK QPSK QPSK QPSK QPSK Peak to Peak Bandwidth of EDS (MHz) n/a n/a n/a n/a n/a n/a Code Rate 1/2xRS 1/2xRS 1/2xRS 1/2xRS 1/2xRS 1/2xRS Occupied Bandwidth (kHz) 6771.1 6771.1 6771.1 75.4 75.4 75.4 Allocated Bandwidth (kHz) 10300 10300 10300 100 100 100 Required C/N (dB) 3.9 3.6 3.6 3.0 2.8 2.8 UPLINK EARTH STATION Earth Station Diameter (meters) 6.1 6.1 6.1 6.1 6.1 6.1 Earth Station Gain (dBi) 56.9 56.9 56.9 56.9 56.9 56.9 Earth Station Elevation Angle 20 20 20 20 20 20 DOWNLINK EARTH STATION Earth Station Diameter (meters) 4.6 4.6 4.6 3.7 3.7 3.7 Earth Station Gain (dBi) 53.5 53.5 53.5 51.1 51.1 51.1 Earth Station G/T, Clear Sky (dB/K) 31.0 31.0 27.3 28.6 28.6 25.0 Earth Station Elevation Angle 20 20 20 20 20 20 LINK FADE TYPE Clear Sky Uplink Fade Downlink Fade Clear Sky Uplink Fade Downlink Fade UPLINK PERFORMANCE Uplink Earth Station EIRP (dBW) 64.9 64.9 64.9 45.3 45.3 45.3 Uplink Path Loss, Clear Sky (dB) -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 Uplink Rain Attenutation (dB) 0.0 -4.3 0.0 0.0 -4.4 0.0 Satellite G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -68.3 -68.3 -68.3 -48.8 -48.8 -48.8 Uplink C/N (dB) 21.2 16.9 21.2 21.1 16.7 21.1 DOWNLINK PERFORMANCE Downlink EIRP per Carrier (dBW) 34.2 30.0 34.2 14.6 10.2 14.6 Antenna Pointing Error (dB) -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 Downlink Path Loss, Clear Sky (dB) -205.9 -205.9 -205.9 -205.9 -205.9 -205.9 Downlink Rain Attenuation (dB) 0.0 0.0 -8.9 0.0 0.0 -7.6 Earth Station G/T, Clear Sky (dB/K) 31.0 31.0 27.3 28.6 28.6 25.0 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -68.3 -68.3 -68.3 -48.8 -48.8 -48.8 Downlink C/N (dB) 19.0 14.8 6.5 16.5 12.1 5.4 COMPOSITE LINK PERFORMANCE C/N Uplink (dB) 21.2 16.9 21.2 21.1 16.7 21.1 C/N Downlink (dB) 19.0 14.8 6.5 16.5 12.1 5.4 C/I Intermodulation (dB) 11.5 7.6 11.5 11.5 7.1 11.5 C/I Uplink Co-Channel (dB)* 19.9 15.6 19.9 20.4 16.0 20.4 C/I Downlink Co-Channel (dB)* 19.9 15.7 19.9 20.4 16.0 20.4 C/I Uplink Adjacent Satellite 1 (dB) 20.6 16.3 20.6 20.5 16.1 20.5 C/I Downlink Adjacent Satellite 1 (dB) 23.5 19.2 23.5 20.9 16.5 20.9 C/I Uplink Adjacent Satellite 2 (dB) 20.6 16.3 20.6 20.5 16.1 20.5 C/I Downlink Adjacent Satellite 2 (dB) 24.3 20.1 24.3 21.9 17.5 21.9 C/(N+I) Composite (dB) 8.6 4.6 4.6 8.2 3.8 3.8 Required System Margin (dB) -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 Net C/(N+I) Composite (dB) 7.6 3.6 3.6 7.2 2.8 2.8 Minimum Required C/N (dB) -3.9 -3.6 -3.6 -3.0 -2.8 -2.8 Excess Link Margin (dB) 3.8 0.0 0.0 4.2 0.0 0.0 Number of Carriers 3.5 3.5 3.5 360 360 360 Carrier Density Levels Uplink Power Density (dBW/Hz) -60.3 -60.3 -60.3 -60.4 -60.4 -60.4 Downlink EIRP Density At Beam Peak -30.1 -34.3 -30.1 -30.2 -34.6 -30.2 * Note: The C/I level is adjusted depending on the signal level and transponder mode of operation.

EXHIBIT 12: Ku-BAND LINK BUDGETS (continued) UPLINK BEAM INFORMATION Uplink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Uplink Frequency (MHz) 13750 – 14500 13750 – 14500 13750 – 14500 13750 – 14500 13750 – 14500 13750 - 14500 Uplink Beam Polarization Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Horizontal/Vertical Uplink Relative Contour Level (dB) -8 -8 -8 -8 -8 -8 Uplink Contour G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Uplink SFD (dBW/m2) -79.5 -79.5 -79.5 -79.5 -79.5 -79.5 Rain Rate (mm/hr) 95 95 95 95 95 95 DOWNLINK BEAM INFORMATION Downlink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Downlink Frequency (MHz) 11700 – 12200 11700 – 12200 11700 – 12200 11700 – 12200 11700 – 12200 11700 - 12200 Downlink Beam Polarization Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Vertical/Horizontal Downlink Relative Contour Level (dB) -4 -4 -4 -4 -4 -4 Downlink Contour EIRP (dBW) 50.2 50.2 50.2 50.2 50.2 50.2 Rain Rate (mm/hr) 95 95 95 95 95 95 ADJACENT SATELLITE 1 Satellite 1 Orbital Location 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 ADJACENT SATELLITE 2 Satellite 2 Orbital Location 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 CARRIER INFORMATION Carrier ID 6 6 6 7 7 7 Emission Designation 1M45G7W 1M45G7W 1M45G7W 400KG7W 400KG7W 400KG7W Information Rate (kbps) 512 512 512 128 128 128 Carrier Modulation BPSK BPSK BPSK BPSK BPSK BPSK Peak to Peak Bandwidth of EDS (MHz) n/a n/a n/a n/a n/a n/a Code Rate 1/2 1/2 1/2 1/2 1/2 1/2 Occupied Bandwidth (kHz) 1229 1229 1229 307 307 307 Allocated Bandwidth (kHz) 1450 1450 1450 400 400 400 Required C/N (dB) 3.4 2.7 2.7 3.4 2.7 2.7 UPLINK EARTH STATION Earth Station Diameter (meters) 6.1 6.1 6.1 3.7 3.7 3.7 Earth Station Gain (dBi) 56.9 56.9 56.9 52.7 52.7 52.7 Earth Station Elevation Angle 20 20 20 20 20 20 DOWNLINK EARTH STATION Earth Station Diameter (meters) 3.7 3.7 3.7 6.1 6.1 6.1 Earth Station Gain (dBi) 51.1 51.1 51.1 55.5 55.5 55.5 Earth Station G/T, Clear Sky (dB/K) 28.6 28.6 25.0 33.1 33.1 29.2 Earth Station Elevation Angle 20 20 20 20 20 20 LINK FADE TYPE Clear Sky Uplink Fade Downlink Fade Clear Sky Uplink Fade Downlink Fade UPLINK PERFORMANCE Uplink Earth Station EIRP (dBW) 57.2 57.2 57.2 50.3 50.3 50.3 Uplink Path Loss, Clear Sky (dB) -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 Uplink Rain Attenutation (dB) 0.0 -4.4 0.0 0.0 -4.1 0.0 Satellite G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -60.9 -60.9 -60.9 -54.9 -54.9 -54.9 Uplink C/N (dB) 21.0 16.5 21.0 20.0 15.9 20.0 DOWNLINK PERFORMANCE Downlink EIRP per Carrier (dBW) 26.5 22.1 26.5 19.6 15.4 19.6 Antenna Pointing Error (dB) -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 Downlink Path Loss, Clear Sky (dB) -205.9 -205.9 -205.9 -205.9 -205.9 -205.9 Downlink Rain Attenuation (dB) 0.0 0.0 -7.5 0.0 0.0 -10.5 Earth Station G/T, Clear Sky (dB/K) 28.6 28.6 25.0 33.1 33.1 29.2 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -60.9 -60.9 -60.9 -54.9 -54.9 -54.9 Downlink C/N (dB) 16.4 12.0 5.3 20.0 15.8 5.7 COMPOSITE LINK PERFORMANCE C/N Uplink (dB) 21.0 16.5 21.0 20.0 15.9 20.0 C/N Downlink (dB) 16.4 12.0 5.3 20.0 15.8 5.7 C/I Intermodulation (dB) 11.3 7.0 11.3 10.4 6.2 10.4 C/I Uplink Co-Channel (dB)* 20.8 16.4 20.8 19.4 15.3 19.4 C/I Downlink Co-Channel (dB)* 20.8 16.4 20.8 19.4 15.3 19.4 C/I Uplink Adjacent Satellite 1 (dB) 20.3 15.9 20.3 19.4 15.3 19.4 C/I Downlink Adjacent Satellite 1 (dB) 20.7 16.3 20.7 24.4 20.3 24.4 C/I Uplink Adjacent Satellite 2 (dB) 20.3 15.9 20.3 19.4 15.3 19.4 C/I Downlink Adjacent Satellite 2 (dB) 21.7 17.3 21.7 25.0 20.9 25.0 C/(N+I) Composite (dB) 8.1 3.7 3.7 7.8 3.7 3.7 Required System Margin (dB) -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 Net C/(N+I) Composite (dB) 7.1 2.7 2.7 6.8 2.7 2.7 Minimum Required C/N (dB) -3.4 -2.7 -2.7 -3.4 -2.7 -2.7 Excess Link Margin (dB) 3.7 0.0 0.0 3.4 0.0 0.0 Number of Carriers 24.8 24.8 24.8 90 90 90 Carrier Density Levels Uplink Power Density (dBW/Hz) -60.6 -60.6 -60.6 -57.3 -57.3 -57.3 Downlink EIRP Density At Beam Peak -30.4 -34.8 -30.4 -31.3 -35.5 -31.3 * Note: The C/I level is adjusted depending on the signal level and transponder mode of operation

EXHIBIT 12: LINK BUDGETS (continued) UPLINK BEAM INFORMATION Uplink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Uplink Frequency (MHz) 14000 – 14260 14000 – 14260 14000 – 14260 14000 – 14260 14000 – 14260 14000 - 14260 Uplink Beam Polarization Horizontal Horizontal Horizontal Horizontal Horizontal Horizontal Uplink Relative Contour Level (dB) -8 -8 -8 -8 -8 -8 Uplink Contour G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Uplink SFD (dBW/m2) -75.5 -75.5 -75.5 -75.5 -75.5 -75.5 Rain Rate (mm/hr) 95 95 95 95 95 95 DOWNLINK BEAM INFORMATION Downlink Beam Name MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 Downlink Frequency (MHz) 11700 – 11960 11700 – 11960 11700 – 11960 11700 – 11960 11700 – 11960 11700 - 11960 Downlink Beam Polarization Vertical Vertical Vertical Vertical Vertical Vertical Downlink Relative Contour Level (dB) -6 -6 -6 -6 -6 -6 Downlink Contour EIRP (dBW) 51.2 51.2 51.2 51.2 51.2 51.2 Rain Rate (mm/hr) 95 95 95 95 95 95 ADJACENT SATELLITE 1 Satellite 1 Orbital Location 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 ADJACENT SATELLITE 2 Satellite 2 Orbital Location 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 CARRIER INFORMATION Carrier ID 1 1 1 2 2 2 Emission Designation 36M0F3F 36M0F3F 36M0F3F 36M0G7W 36M0G7W 36M0G7W Information Rate (kbps) n/a n/a n/a 36863 36863 36863 Carrier Modulation TV/FM TV/FM TV/FM QPSK QPSK QPSK Peak to Peak Bandwidth of EDS (MHz) 4 4 4 n/a n/a n/a Code Rate n/a n/a n/a 3/4xRS 3/4xRS 3/4xRS Occupied Bandwidth (kHz) 36000 36000 36000 30133 30133 30133 Allocated Bandwidth (kHz) 36000 36000 36000 36000 36000 36000 Required C/N (dB) 10 10 10 6.1 6.1 6.1 UPLINK EARTH STATION Earth Station Diameter (meters) 6.1 6.1 6.1 6.1 6.1 6.1 Earth Station Gain (dBi) 56.9 56.9 56.9 56.9 56.9 56.9 Earth Station Elevation Angle 20 20 20 20 20 20 DOWNLINK EARTH STATION Earth Station Diameter (meters) 11 11 11 4.6 4.6 4.6 Earth Station Gain (dBi) 60.4 60.4 60.4 53.5 53.5 53.5 Earth Station G/T, Clear Sky (dB/K) 38.0 38.0 35.9 31.0 31.0 27.7 Earth Station Elevation Angle 20 20 20 20 20 20 LINK FADE TYPE Clear Sky Uplink Fade Downlink Fade Clear Sky Uplink Fade Downlink Fade UPLINK PERFORMANCE Uplink Earth Station EIRP (dBW) 69.4 69.4 69.4 71.1 71.1 71.1 Uplink Path Loss, Clear Sky (dB) -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 Uplink Rain Attenutation (dB) 0.0 -0.7 0.0 0.0 -5.9 0.0 Satellite G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -75.6 -75.6 -75.6 -74.8 -74.8 -74.8 Uplink C/N (dB) 18.5 17.8 18.5 20.9 15.1 20.9 DOWNLINK PERFORMANCE Downlink EIRP per Carrier (dBW) 37.1 36.7 37.1 38.8 35.4 38.8 Antenna Pointing Error (dB) -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 Downlink Path Loss, Clear Sky (dB) -205.9 -205.9 -205.9 -205.9 -205.9 -205.9 Downlink Rain Attenuation (dB) 0.0 0.0 -2.2 0.0 0.0 -5.6 Earth Station G/T, Clear Sky (dB/K) 38.0 38.0 35.9 31.0 31.0 27.7 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -75.6 -75.6 -75.6 -74.8 -74.8 -74.8 Downlink C/N (dB) 21.7 21.3 17.4 17.1 13.8 8.3 COMPOSITE LINK PERFORMANCE C/N Uplink (dB) 18.5 17.8 18.5 20.9 15.1 20.9 C/N Downlink (dB) 21.7 21.3 17.4 17.1 13.8 8.3 C/I Intermodulation (dB) n/a n/a n/a n/a n/a n/a C/I Uplink Co-Channel (dB)* 23.0 22.3 23.0 24.7 18.8 24.7 C/I Downlink Co-Channel (dB)* 23.0 22.6 23.0 24.7 21.3 24.7 C/I Uplink Adjacent Satellite 1 (dB) 17.8 17.1 17.8 20.3 14.4 20.3 C/I Downlink Adjacent Satellite 1 (dB) 26.3 25.8 26.3 21.6 18.2 21.6 C/I Uplink Adjacent Satellite 2 (dB) 17.8 17.1 17.8 20.3 14.4 20.3 C/I Downlink Adjacent Satellite 2 (dB) 26.6 26.2 26.6 22.4 19.0 22.4 C/(N+I) Composite (dB) 11.6 11.0 11.0 11.8 7.1 7.1 Required System Margin (dB) -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 Net C/(N+I) Composite (dB) 10.6 10.0 10.0 10.8 6.1 6.1 Minimum Required C/N (dB) -10.0 -10.0 -10.0 -6.1 -6.1 -6.1 Excess Link Margin (dB) 0.6 0.0 0.0 4.7 0.0 0.0 Number of Carriers 1 1 1 1 1 1 Carrier Density Levels Uplink Power Density (dBW/Hz) -53.5 -53.5 -53.5 -57.6 -57.6 -57.6 Downlink EIRP Density At Beam Peak -23.0 -23.3 -23.0 -30.0 -30.7 -30.0 * Note: The C/I level is adjusted depending on the signal level and transponder mode of operation.

EXHIBIT 12: Ku-BAND LINK BUDGETS (continued) UPLINK BEAM INFORMATION Uplink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Uplink Frequency (MHz) 14000 – 14260 14000 – 14260 14000 – 14260 14000 – 14260 14000 – 14260 14000 - 14260 Uplink Beam Polarization Horizontal Horizontal Horizontal Horizontal Horizontal Horizontal Uplink Relative Contour Level (dB) -8 -8 -8 -8 -8 -8 Uplink Contour G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Uplink SFD (dBW/m2) -78.5 -78.5 -78.5 -78.5 -78.5 -78.5 Rain Rate (mm/hr) 95 95 95 95 95 95 DOWNLINK BEAM INFORMATION Downlink Beam Name MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 Downlink Frequency (MHz) 11700 – 11960 11700 – 11960 11700 – 11960 11700 – 11960 11700 – 11960 11700 - 11960 Downlink Beam Polarization Vertical Vertical Vertical Vertical Vertical Vertical Downlink Relative Contour Level (dB) -6 -6 -6 -6 -6 -6 Downlink Contour EIRP (dBW) 51.2 51.2 51.2 51.2 51.2 51.2 Rain Rate (mm/hr) 95 95 95 95 95 95 ADJACENT SATELLITE 1 Satellite 1 Orbital Location 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 ADJACENT SATELLITE 2 Satellite 2 Orbital Location 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 CARRIER INFORMATION Carrier ID 3 3 3 5 5 5 Emission Designation 10M3G7W 10M3G7W 10M3G7W 100KG7W 100KG7W 100KG7W Information Rate (kbps) 6000 6000 6000 64 64 64 Carrier Modulation QPSK QPSK QPSK QPSK QPSK QPSK Peak to Peak Bandwidth of EDS (MHz) n/a n/a n/a n/a n/a n/a Code Rate 1/2xRS 1/2xRS 1/2xRS 1/2xRS 1/2xRS 1/2xRS Occupied Bandwidth (kHz) 6771.1 6771.1 6771.1 75.4 75.4 75.4 Allocated Bandwidth (kHz) 10300 10300 10300 100 100 100 Required C/N (dB) 3.9 3.6 3.6 3.0 2.8 2.8 UPLINK EARTH STATION Earth Station Diameter (meters) 6.1 6.1 6.1 6.1 6.1 6.1 Earth Station Gain (dBi) 56.9 56.9 56.9 56.9 56.9 56.9 Earth Station Elevation Angle 20 20 20 20 20 20 DOWNLINK EARTH STATION Earth Station Diameter (meters) 4.6 4.6 4.6 3.7 3.7 3.7 Earth Station Gain (dBi) 53.5 53.5 53.5 51.1 51.1 51.1 Earth Station G/T, Clear Sky (dB/K) 31.0 31.0 27.4 28.6 28.6 25.2 Earth Station Elevation Angle 20 20 20 20 20 20 LINK FADE TYPE Clear Sky Uplink Fade Downlink Fade Clear Sky Uplink Fade Downlink Fade UPLINK PERFORMANCE Uplink Earth Station EIRP (dBW) 61.7 61.7 61.7 42.3 42.3 42.3 Uplink Path Loss, Clear Sky (dB) -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 Uplink Rain Attenutation (dB) 0.0 -4.8 0.0 0.0 -5.0 0.0 Satellite G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -68.3 -68.3 -68.3 -48.8 -48.8 -48.8 Uplink C/N (dB) 18.0 13.1 18.0 18.2 13.2 18.2 DOWNLINK PERFORMANCE Downlink EIRP per Carrier (dBW) 32.0 27.1 32.0 12.6 7.6 12.6 Antenna Pointing Error (dB) -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 Downlink Path Loss, Clear Sky (dB) -205.9 -205.9 -205.9 -205.9 -205.9 -205.9 Downlink Rain Attenuation (dB) 0.0 0.0 -7.3 0.0 0.0 -6.3 Earth Station G/T, Clear Sky (dB/K) 31.0 31.0 27.4 28.6 28.6 25.2 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -68.3 -68.3 -68.3 -48.8 -48.8 -48.8 Downlink C/N (dB) 16.8 12.0 5.9 14.6 9.6 4.9 COMPOSITE LINK PERFORMANCE C/N Uplink (dB) 18.0 13.1 18.0 18.2 13.2 18.2 C/N Downlink (dB) 16.8 12.0 5.9 14.6 9.6 4.9 C/I Intermodulation (dB) 21.8 17.5 21.8 22.0 17.0 22.0 C/I Uplink Co-Channel (dB)* 19.7 14.8 19.7 20.5 15.5 20.5 C/I Downlink Co-Channel (dB)* 19.7 14.9 19.7 20.5 15.5 20.5 C/I Uplink Adjacent Satellite 1 (dB) 17.3 12.5 17.3 17.6 12.6 17.6 C/I Downlink Adjacent Satellite 1 (dB) 21.2 16.4 21.2 18.9 13.9 18.9 C/I Uplink Adjacent Satellite 2 (dB) 17.3 12.5 17.3 17.6 12.6 17.6 C/I Downlink Adjacent Satellite 2 (dB) 22.1 17.2 22.1 20.0 15.0 20.0 C/(N+I) Composite (dB) 9.4 4.6 4.6 8.8 3.8 3.8 Required System Margin (dB) -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 Net C/(N+I) Composite (dB) 8.4 3.6 3.6 7.8 2.8 2.8 Minimum Required C/N (dB) -3.9 -3.6 -3.6 -3.0 -2.8 -2.8 Excess Link Margin (dB) 4.5 0.0 0.0 4.8 0.0 0.0 Number of Carriers 3.5 3.5 3.5 360 360 360 Carrier Density Levels Uplink Power Density (dBW/Hz) -63.6 -63.6 -63.6 -63.3 -63.3 -63.3 Downlink EIRP Density At Beam Peak -30.4 -35.2 -30.4 -30.1 -35.2 -30.1 * Note: The C/I level is adjusted depending on the signal level and transponder mode of operation.

EXHIBIT 12: Ku-BAND LINK BUDGETS (continued) UPLINK BEAM INFORMATION Uplink Beam Name MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 MEXICO 1 Uplink Frequency (MHz) 14000 – 14260 14000 – 14260 14000 – 14260 14000 – 14260 14000 – 14260 14000 - 14260 Uplink Beam Polarization Horizontal Horizontal Horizontal Horizontal Horizontal Horizontal Uplink Relative Contour Level (dB) -8 -8 -8 -8 -8 -8 Uplink Contour G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Uplink SFD (dBW/m2) -78.5 -78.5 -78.5 -78.5 -78.5 -78.5 Rain Rate (mm/hr) 95 95 95 95 95 95 DOWNLINK BEAM INFORMATION Downlink Beam Name MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 MEXICO 2 Downlink Frequency (MHz) 11700 – 11960 11700 – 11960 11700 – 11960 11700 – 11960 11700 – 11960 11700 - 11960 Downlink Beam Polarization Vertical Vertical Vertical Vertical Vertical Vertical Downlink Relative Contour Level (dB) -6 -6 -6 -6 -6 -6 Downlink Contour EIRP (dBW) 51.2 51.2 51.2 51.2 51.2 51.2 Rain Rate (mm/hr) 95 95 95 95 95 95 ADJACENT SATELLITE 1 Satellite 1 Orbital Location 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL 56.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 ADJACENT SATELLITE 2 Satellite 2 Orbital Location 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL 60.1 WL Uplink Power Density (dBW/Hz) -50 -50 -50 -50 -50 -50 Uplink Polarization Advantage (dB) 0 0 0 0 0 0 Downlink EIRP Density (dBW/Hz) -26 -26 -26 -26 -26 -26 Downlink Polarization Advantage (dB) 0 0 0 0 0 0 CARRIER INFORMATION Carrier ID 6 6 6 7 7 7 Emission Designation 1M45G7W 1M45G7W 1M45G7W 400KG7W 400KG7W 400KG7W Information Rate (kbps) 512 512 512 128 128 128 Carrier Modulation BPSK BPSK BPSK BPSK BPSK BPSK Peak to Peak Bandwidth of EDS (MHz) n/a n/a n/a n/a n/a n/a Code Rate 1/2 1/2 1/2 1/2 1/2 1/2 Occupied Bandwidth (kHz) 1229 1229 1229 307 307 307 Allocated Bandwidth (kHz) 1450 1450 1450 400 400 400 Required C/N (dB) 3.4 2.7 2.7 3.4 2.7 2.7 UPLINK EARTH STATION Earth Station Diameter (meters) 6.1 6.1 6.1 3.7 3.7 3.7 Earth Station Gain (dBi) 56.9 56.9 56.9 52.7 52.7 52.7 Earth Station Elevation Angle 20 20 20 20 20 20 DOWNLINK EARTH STATION Earth Station Diameter (meters) 3.7 3.7 3.7 6.1 6.1 6.1 Earth Station Gain (dBi) 51.1 51.1 51.1 55.5 55.5 55.5 Earth Station G/T, Clear Sky (dB/K) 28.6 28.6 25.2 33.1 33.1 29.4 Earth Station Elevation Angle 20 20 20 20 20 20 LINK FADE TYPE Clear Sky Uplink Fade Downlink Fade Clear Sky Uplink Fade Downlink Fade UPLINK PERFORMANCE Uplink Earth Station EIRP (dBW) 54.3 54.3 54.3 46.6 46.6 46.6 Uplink Path Loss, Clear Sky (dB) -207.5 -207.5 -207.5 -207.5 -207.5 -207.5 Uplink Rain Attenutation (dB) 0.0 -5.0 0.0 0.0 -4.7 0.0 Satellite G/T (dB/K) 3.5 3.5 3.5 3.5 3.5 3.5 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -60.9 -60.9 -60.9 -54.9 -54.9 -54.9 Uplink C/N (dB) 18.0 13.0 18.0 16.4 11.6 16.4 DOWNLINK PERFORMANCE Downlink EIRP per Carrier (dBW) 24.6 19.6 24.6 16.9 12.2 16.9 Antenna Pointing Error (dB) -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 Downlink Path Loss, Clear Sky (dB) -205.9 -205.9 -205.9 -205.9 -205.9 -205.9 Downlink Rain Attenuation (dB) 0.0 0.0 -6.2 0.0 0.0 -8.4 Earth Station G/T, Clear Sky (dB/K) 28.6 28.6 25.2 33.1 33.1 29.4 Boltzman Constant (dBW/K-Hz) 228.6 228.6 228.6 228.6 228.6 228.6 Carrier Noise Bandwidth (dB-Hz) -60.9 -60.9 -60.9 -54.9 -54.9 -54.9 Downlink C/N (dB) 14.5 9.4 4.8 17.3 12.6 5.2 COMPOSITE LINK PERFORMANCE C/N Uplink (dB) 18.0 13.0 18.0 16.4 11.6 16.4 C/N Downlink (dB) 14.5 9.4 4.8 17.3 12.6 5.2 C/I Intermodulation (dB) 21.9 17.0 21.9 20.2 15.5 20.2 C/I Uplink Co-Channel (dB)* 20.9 15.8 20.9 18.7 14.0 18.7 C/I Downlink Co-Channel (dB)* 20.9 15.8 20.9 18.7 14.0 18.7 C/I Uplink Adjacent Satellite 1 (dB) 17.4 12.4 17.4 15.7 11.0 15.7 C/I Downlink Adjacent Satellite 1 (dB) 18.8 13.8 18.8 21.7 17.0 21.7 C/I Uplink Adjacent Satellite 2 (dB) 17.4 12.4 17.4 15.7 11.0 15.7 C/I Downlink Adjacent Satellite 2 (dB) 19.8 14.8 19.8 22.3 17.6 22.3 C/(N+I) Composite (dB) 8.7 3.7 3.7 8.4 3.7 3.7 Required System Margin (dB) -1.0 -1.0 -1.0 -1.0 -1.0 -1.0 Net C/(N+I) Composite (dB) 7.7 2.7 2.7 7.4 2.7 2.7 Minimum Required C/N (dB) -3.4 -2.7 -2.7 -3.4 -2.7 -2.7 Excess Link Margin (dB) 4.3 0.0 0.0 4.0 0.0 0.0 Number of Carriers 24.8 24.8 24.8 90 90 90 Carrier Density Levels Uplink Power Density (dBW/Hz) -63.5 -63.5 -63.5 -61.0 -61.0 -61.0 Downlink EIRP Density At Beam Peak -30.3 -35.3 -30.3 -32.0 -36.7 -32.0 * Note: The C/I level is adjusted depending on the signal level and transponder mode of operation


Document Created: 2010-02-03 15:47:44
Document Modified: 2010-02-03 15:47:44
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