Attachment Schedule S document

This document pretains to SES-AMD-20070426-00517 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMD2007042600517_563247

      Table A.12-3 – Link Budget for Communication Forward Link to
             Class-3 User Terminal (200 kHz carrier; Spot Beam)

General                                          Unit
    User terminal type                           -                     Class-3
    Modulation ID / Designator                   -            C3F2/ 200KD7W
    Data rate (kbps)                             (kbps)                    384
    Coding rate                                  -                       0.642
    Modulation                                   -                    16-QAM
    Carrier bandwidth                            (kHz)                     189
    Allocated bandwidth                          (kHz)                     200
Uplink
    Frequency                                    (GHz)                     6.5
    SAS elevation angle                          (deg)                     5.0
    SAS EIRP towards satellite                   (dBW)                    57.3
    Path loss                                    (dB)                    200.9
    Mean Atmospheric loss                        (dB)                      0.4
    Satellite G/T                                (dB/K)                  -10.4
    Boltzmann Constant                           (dBW/K/Hz)             -228.6
    Up-path C/No                                 (dBHz)                   74.2
Downlink
    Frequency                                    (GHz)                     1.5
    User terminal elevation angle                (deg)                    90.0
    Satellite EIRP                               (dBW)                    44.5
    Path loss                                    (dB)                    188.4
    Mean Atmospheric loss                        (dB)                      0.1
    User terminal G/T                            (dB/K)                  -16.9
    Boltzmann Constant                           (dBW/K/Hz)             -228.6
    Down-path C/No                               (dBHz)                   67.7
Total
    Mean satellite C/IMo                         (dBHz)                  71.9
    Co-Channel Interference                      (dBHz)                  74.0
    Adjacent satellite interference allocation   (dB)                     1.0
    Mean Overall C/No                            (dBHz)                  64.1
    Mean Overall C/N                             (dB)                    11.3
Margin
    C/N objective                                (dB)                      9.1
    C/N margin                                   (dB)                      2.2



Document Created: 2007-04-27 13:05:43
Document Modified: 2007-04-27 13:05:43

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