Attachment Schedule S DOC 2

This document pretains to SAT-MOD-20110929-00192 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2011092900192_919264

TABLE 8: Link Budgets for 7 Typical Links - Digital carriers



                                    Digital TV        Digital TV
                                    MCPC              MCPC              Digital TV        Digital TV
                                    40 Mbps           32 Mbps           MCPC 60 Mbps      SCPC
Parameter                           QPSK ¾ RS         QPSK ¾ RS         QPSK ¾ RS         QPSK ¾ RS
Carrier designation                 36M0G7W           27M0G7W           54M0G7W           5M00G1W
Data Rate (dB-Hz)                             76.00             75.00             77.80        67.60
Throughput rate (Mbps)                        39.81             31.62             60.26          5.75
Symbol rate (Msps)                            28.80             22.88             43.59          4.16
Uplinks:
Transmit Power (dBW)                         20.00             20.00              8.90          8.90
Transmit Loss (dB)                           -2.50             -2.50             -2.50         -2.50
Antenna diameter                              6.10              6.10              6.10          3.70
Antenna Gain (dBi)                           57.31             57.31             57.31         52.97
Ground Station EIRP (dBW)                    74.81             74.81             74.80         59.37
Uplink Rain Loss (dB)                        -2.00             -2.00             -2.00         -2.00
Free Space Loss (dB)                       -207.00           -207.00           -207.00       -207.00
Satellite G/T (dB/K)                          3.00              3.00              3.00          3.00
Boltzmann’s Constant (dBW/K-Hz)            -228.60           -228.60           -228.60       -228.60
Eb/N0 (dB)                                   21.41             22.41             19.60         14.37
Eb/I0 (dB)                                   18.00             18.00             16.00         16.00
Total Eb/(N0 + I0) (dB)                      16.37             16.66             14.43         12.10
Downlinks:
Satellite Carrier EIRP (dBW)                 47.00             46.00             47.00         34.30
Interference bandwidth (MHz)                 36.00             27.00             54.00          5.00
Satellite EIRP density (dBW/4KHz)             7.46              7.71              5.70          3.33
Downlink Rain Loss (dB)                      -3.00             -3.00             -3.00         -3.00
Free Space Loss (dB)                       -205.40           -205.40           -205.40       -205.40
Ground station antenna dia, m                 1.20              1.20              1.20          2.40
Ground Station G/T (dB/K)                    20.91             20.91             20.91         26.93
Eb/N0 (dB)                                   12.11             12.11             10.31         13.83
C/IM                                                                             18.00         18.00
Eb/Imo (dB)                                                                      16.60         16.60
C/I                                          15.00             15.00             15.00         15.00
Eb/I0 (ASI) (dB)                             13.59             13.59             13.59         13.59
Eb/I0 (dB)                                   13.59             13.59             13.59         13.59
Eb/(N0 + I0) (dB)                             9.78              9.78              7.99          9.71
Total Up/Down Eb/(N0+Io)(dB)                  8.92              8.97              7.10          7.73
Required Eb/N0                                5.40              5.40              5.40          5.40
Margin                                        3.52              3.57              1.70          2.33


                        Digital TV
             1.544      MCPC
56 Kbps      Mbps       50 Mbps
QPSK ¾ RS    QPSK ¾ RS 8PSK ⅔ RS
100KG1W      1M60G1W 36M0G7W
     47.50        61.89      77.00
      0.06         1.54      50.12
      0.04         1.12      27.19

    -2.00         8.00      20.00
    -2.50        -2.50      -2.50
     1.80         1.80       6.10
    46.71        46.71      57.31
    42.21        52.21      74.81
    -2.00        -2.00      -2.00
  -207.00      -207.00    -207.00
     3.00         3.00       3.00
  -228.60      -228.60    -228.60
    17.31        12.93      20.41
    16.00        16.00      18.00
    13.60        11.19      16.03

    18.50        28.50      47.00
     0.10         1.60      36.00
     4.52         2.48       7.46
    -3.00        -3.00      -3.00
  -205.40      -205.40    -205.40
     1.20         2.40       2.40
    20.91        26.93      26.93
    12.11        13.74      17.13
    18.00        18.00
    16.60        16.60
    15.00        15.00      15.00
    13.59        13.59      12.34
    13.59        13.59      12.34
     8.96         9.67      11.10
     7.67         7.35       9.89
     5.40         5.40       7.20
     2.27         1.95       2.69



Document Created: 2011-09-30 08:58:15
Document Modified: 2011-09-30 08:58:15

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