Attachment Schedule S DOC 16

This document pretains to SES-LIC-20120426-00397 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012042600397_951163

INM-KA TEST RETURN LINK BUDGET (COMMS. GP)
General                                               Unit                    SEATEL 100cm

          User terminal type                          -               Test return carrier GW-
                                                                                    GW (GP)
          Carrier designator                          -               2M45G7W (TEST-R2)
          Data rate (kbps)                            (kbps)                       1674
          Coding rate                                 -                              1/2
          Modulation                                  -                           QPSK
          Occupied bandwidth                          (kHz)                      2041.7
          Allocated bandwidth                         (kHz)                      2450.1
Uplink
        Beam                                                                     User-Spot
        Frequency                                     (GHz)                          29.75
        EIRP                                          (dBW)                           52.5
        Antenna tx gain                               dBi                             69.3
        Uplink power                                  (dBW)                          -16.8
        Uplink p.s.d.                                 (dBW/Hz)                       -79.9
        Path loss                                     (dB)                           213.6
        Rain loss                                     (dB)                             7.0
        Mean Atmospheric loss                         (dB)                             1.7
        Satellite G/T (EOC)                           (dB/K)                           9.6
        Up-path C/No                                  (dBHz)                          68.2
        Up-path C/N                                   (dB)                             5.1
Downlink
        Beam                                                                         Feeder
        Frequency                                     (GHz)                            18.95
        Max pfd per crx @ earth surface(beam          (dBW/m2/1MHz)                   -139.6
        peak)
        Beam Peak to Edge of Coverage                 (dB)                               3.0
        Max pfd per crx @ earth surface(EOC)          (dBW/m2/1MHz)                   -142.6
        Satellite EIRP (EOC)                          (dBW)                             22.6
        Path loss                                     (dB)                             209.7
        Rain loss                                     (dB)                               5.6
        Mean Atmospheric loss                         (dB)                               0.7
        Earth Station G/T                             (dB/K)                            42.0
        G/T degradation due to rain                   (dB)                               2.4
        Rx terminal Pointing loss                     (dB)                                 0
        Co-Channel / adj . beam interf. (dn)          (dBHz)                           163.1
        Down-path C/No                                (dBHz)                            74.8
        Down-path C/N                                 (dB)                              11.7
Total
        Mean satellite C/Imo                          (dBHz)                            79.5
        Mean Overall C/No                             (dBHz)                            67.1
        Total C/I (adjacent satellite interference)   (dB)                              19.7
        Mean Overall C/N (incl. a.s.i)                (dB)                               3.9
Margin
        C/N required                                  (dB)                               2.0
        C/N margin                                    (dB)                               1.9
        Availability                                  (%)                               98.6


C/I calculations

Orbital separation (interferor 1)                       degree           2.0
Worst case topocentric angle (1)                        degree          2.09

Uplink C/I
Interferor 1
            Max. uplink p.s.d                           (dBW/Hz)        -56.5
            Other's sidelobe at 2 deg. sep X-25log(t)                    29.0
            Tx Sidelobe gain at 2 deg sep               dBi              21.0
            Inm-Ka C/I up1                              dB               21.9
Downlink C/I
Interferor 1
            Max. ground PFD                             (dBW/m2/MHz)   -121.1
            Max. downlink EIRP s.d                      (dBW/Hz)        -19.0
            Inm rx sidelobe at 2 deg. sep                                29.0
            Inm Rx sidelobe gain at 2 deg sep           dBi              21.0
            Inm-Ka C/I dn1                              dB               23.7
Total C/I (adjacent satellite interference)             dB               19.7



Document Created: 2012-05-08 12:05:23
Document Modified: 2012-05-08 12:05:23

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