Attachment Schedule S DOC 26

This document pretains to SES-LIC-20150402-00188 for License on a Satellite Earth Station filing.

IBFS_SESLIC2015040200188_1082802

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

          User terminal type                         -               Test return carrier
                                                                       GW-GW (HCP)
          Carrier designator                         -                     2M45G7W
                                                                           (TEST-R5)

          Data rate (kbps)                           (kbps)                     2636
          Coding rate                                -                            3/4
          Modulation                                 -                         QPSK
          Occupied bandwidth                         (kHz)                     2041.7
          Allocated bandwidth                        (kHz)                     2450.1
Uplink
          Beam                                                              User-Spot
                                                                               (HCP)
       Frequency                                     (GHz)                      29.25
       EIRP                                          (dBW)                       52.5
       Antenna tx gain                               dBi                         69.1
       Uplink power                                  (dBW)                      -16.6
       Uplink p.s.d.                                 (dBW/Hz)                   -79.7
       Path loss                                     (dB)                       213.5
       Rain loss                                     (dB)                         7.0
       Mean Atmospheric loss                         (dB)                         1.7
       Satellite G/T (EOC)                           (dB/K)                      11.0
       Up-path C/No                                  (dBHz)                      69.8
       Up-path C/N                                   (dB)                         6.7
Downlink
       Beam                                                                    Feeder
       Frequency                                     (GHz)                         18
       Max pfd per crx @ earth surface(beam          (dBW/m2/1MHz)              -134.4
       peak)
       Beam Peak to Edge of Coverage                 (dB)                          3.0
       Max pfd per crx @ earth surface(EOC)          (dBW/m2/1MHz)              -137.4
       Satellite EIRP (EOC)                          (dBW)                        27.7
       Path loss                                     (dB)                        209.3
       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)                          2.6
       Rx terminal Pointing loss                     (dB)                          0.1
       Co-Channel / adj . beam interf. (dn)          (dBHz)                       86.1
       Down-path C/No                                (dBHz)                       79.1
       Down-path C/N                                 (dB)                         16.0
Total
       Mean satellite C/Imo                          (dBHz)                       84.7
       Mean Overall C/No                             (dBHz)                       69.2
       Total C/I (adjacent satellite interference)   (dB)                         20.6
       Mean Overall C/N (incl. a.s.i)                (dB)                          6.0
Margin
       C/N required                                  (dB)                           5.6


          C/N margin                                   (dB)             0.4
          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)        -56.0
           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               21.4
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 gain at 2 deg sep           dBi              21.0
           Inm-Ka C/I dn1                              dB               28.4
Total C/I (adjacent satellite interference)            dB               20.6



Document Created: 2015-04-08 17:07:21
Document Modified: 2015-04-08 17:07:21

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