Attachment Schedule S DOC 3

This document pretains to SAT-LOI-20110809-00150 for Letter of Intent on a Satellite Space Stations filing.

IBFS_SATLOI2011080900150_911343

                                                        CLEAR SKY    FADED

General                                    Unit
    Data rate (kbps)                       (kbps)            4112     3616
    Coding rate                            -                  0.68     0.60
    Modulation                             -                QPSK     QPSK
    Carrier bandwidth                      (kHz)             3780     3780
Uplink
    Frequency                              (GHz)             29.75    29.75
    User Terminal EIRP                     (dBW)              49.3     54.1
    Antenna diameter                       m                  0.60     0.60
    Antenna tx gain                        dBi                43.6     43.6
    Uplink power                           (dBW)               5.7     10.5
    Uplink p.s.d.                          (dBW/Hz)          -60.0    -55.2
    Path loss                              (dB)              213.6    213.6
    Rain loss                              (dB)                0.0      4.8
    Mean Atmospheric loss                  (dB)                0.4      0.4
    Satellite G/T (EOC)                    (dB/K)              9.0      9.0
    Boltzmann Constant                     (dBW/K/Hz)       -228.6   -228.6
    Up-path C/No                           (dBHz)             72.9     72.9
Downlink
    Frequency                              (GHz)              18.8     18.8
    Satellite EIRP (EOC)                   (dBW)              33.8     33.8
    Path loss                              (dB)              209.6    209.6
    Rain loss                              (dB)                0.0      8.6
    Mean Atmospheric loss                  (dB)                0.4      0.4
    Earth Station G/T                      (dB/K)             36.2     36.2
    T (clear sky)                          K                 300.0    300.0
    G/T degradation due to rain            (dB)                0.0      2.4
    Boltzmann Constant                     (dBW/K/Hz)       -228.6   -228.6
    Rx terminal Pointing loss              (dB)                0.1      0.1
    Down-path C/No                         (dBHz)             88.5     77.5
Total
    Mean satellite C/Imo                   (dBHz)            90.8      90.8
    Co-Channel Interference                (dBHz)            84.0      84.0
    Other system interference allocation   (dB)               1.0       1.0
    Mean Overall C/No                      (dBHz)            71.4      70.3
    Mean Overall C/N                       (dB)               5.6       4.5
Margin
    C/N required                           (dB)                4.0      2.9
    Margin                                 (dB)                1.6      1.7
    Availability                           (%)                 n/a   99.0%



Document Created: 2011-08-10 12:02:46
Document Modified: 2011-08-10 12:02:46

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