Attachment Schedule S DOC 8

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

IBFS_SATLOA2008041600085_799322

                                                                   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 15:47:30
Document Modified: 2010-02-03 15:47:30

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