Attachment Schedule S document

This document pretains to SES-MFS-20051202-01665 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2005120201665_469054

Table A.12-12 – Link Budget for Signaling Return Link from Class-3 User Terminal
                      (25 kHz bandwidth; Regional Beam)

    General                                          Unit
        User terminal type                           -                      Class-3
        Modulation ID / Designator                   -            C3R3 / 25K0G7W
        Data rate (kbps)                             (kbps)                      20
        Coding rate                                  -                         0.73
        Modulation                                   -                   pi/4 QPSK
        Carrier bandwidth                            (kHz)                       21
        Allocated bandwidth                          (kHz)                       25
    Uplink
        Frequency                                    (GHz)                      1.6
        User terminal elevation angle                (deg)                       90
        User terminal EIRP towards satellite         (dBW)                     11.0
        Path loss                                    (dB)                     188.9
        Atmospheric loss                             (dB)                       0.1
        Satellite G/T                                (dB/K)                     2.2
        Boltzmann Constant                           (dBW/K/Hz)              -228.6
        Adjacent Channel Interference                (dB)                       0.2
        Up-path C/No                                 (dBHz)                    52.6
    Downlink
        Frequency                                    (GHz)                      3.6
        SAS elevation angle                          (deg)                        5
        Satellite EIRP                               (dBW)                     -3.5
        Path loss                                    (dB)                     195.7
        Atmospheric loss                             (dB)                       0.4
        SAS G/T                                      (dB/K)                    32.3
        Boltzmann Constant                           (dBW/K/Hz)              -228.6
        Random Loss (99%)                            (dB)                       0.5
        Down-path C/No                               (dBHz)                    60.8
    Total
        Mean satellite C/IMo                         (dBHz)                   65.0
        Co-Channel Interference                      (dBHz)                   63.2
        Adjacent satellite interference allocation   (dB)                      1.0
        Mean Overall C/No                            (dBHz)                   50.5
        Mean Overall C/N                             (dB)                      7.3
    Margin
        C/N objective                                (dB)                       4.4
        C/N margin                                   (dB)                       2.8



Document Created: 2005-12-05 13:46:07
Document Modified: 2005-12-05 13:46:07

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