Attachment Schedule S DOC 3

This document pretains to SAT-AMD-20100514-00101 for Amended Filing on a Satellite Space Stations filing.

IBFS_SATAMD2010051400101_817422

                   MSAT GC-S Carrier EOC Link Budget
                                              FORWARD         RETURN
PARAMETER                         UNITS      (Hub to User)     (User to
                                                                Hub)
Noise Bandwidth                    kHz                    4            4
Boltzmann’s constant             dBW/Hz·ºK           -228.6       -228.6
              UPLINK                                  Clear        Clear
Frequency                           GHz                  13         1.64
Earth Station EIRP                 dBW                 54.5           12
Body Shielding Loss                 dB                    x            0
Polarization Loss                   dB                    x         -0.5
Free Space Loss                     dB               -206.7       -188.8
Uplink Fade                         dB                    0            0
Satellite Antenna Gain, EOC         dBi                  29           29
Received Carrier Power             dBW               -123.2       -148.3
Satellite G/T                      dB/ºK                 -1            5
Intersystem Interference            dB                  0.5            1
Allowance
C/No                               dB·Hz               74.9         55.3

C/Imo                              dB·Hz               58.0         60.0

Satellite C/(No+Io)                dB·Hz               57.9         54.0
             DOWNLINK
Frequency                           GHz                1.55           11
Satellite Active Gain               dB                123.3          122
Satellite Antenna Gain, EOC         dBi                  29           29
Satellite EOC EIRP                 dBW                 29.1          2.7
Free Space Loss                     dB               -188.5       -205.2
Downlink Fade                       dB                    x            0
Earth Station G/T                  dB/ºK                -16         36.5
Interference Allowance              dB                    1          0.5
C/No                               dB·Hz               52.2         62.1
                LINK
Link C/(No+Io)                     dB·Hz               51.2         53.4
Required C/No                      dB-Hz               45.0         45.0
 Margin                             dB                  6.2          8.4



Document Created: 2010-05-18 09:04:24
Document Modified: 2010-05-18 09:04:24

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