Attachment Schedule S DOC 4

This document pretains to SAT-LOI-20130319-00044 for Letter of Intent on a Satellite Space Stations filing.

IBFS_SATLOI2013031900044_994819

                                                        CLEAR    FADED
                                                          SKY
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: 2013-04-30 11:12:46
Document Modified: 2013-04-30 11:12:46

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