Attachment Schedule S document

This document pretains to SAT-STA-20050608-00116 for Special Temporal Authority on a Satellite Space Stations filing.

IBFS_SATSTA2005060800116_435542

             Table A.13-2 –Link Budget for 72 MHz carrier. (72M0G7W)


Representative Link Budget

               Link Parameters                           Clear Sky     Faded D/L



Carrier:
   Uncoded Data Rate                            (kbps)   82942.0        82942.0
   Modulation                                             QPSK           QPSK
   FEC                                                    0.691          0.691
   Carrier Bandwidth                            (MHz)      72.0           72.0
Link Geometry:
   Tx E/S Range to Satellite (Honolulu beam)    (km)      37,646        37,646
   Rx E/S Range to Satellite (Phoenix beam)     (km)      37,078        37,078
Uplink (per carrier):
   Carrier Frequency                            (MHz)     29,400        29,400
   Tx E/S Antenna Diameter                      (m)         4.5           4.5
   Tx E/S Power to Antenna                      (dBW)      19.0          19.0
   Tx E/S Antenna Gain                          (dB)       61.0          61.0
   Tx E/S EIRP per Carrier                      (dBW)      80.0          80.0
   Atmospheric and Other Losses                 (dB)        0.3           0.3
   Free Space Loss                              (dB)       213.3         213.3
Satellite:
   G/T towards Tx E/S                           (dB/K)     3.3           3.3
   Satellite EIRP (-3 dB Contour)               (dBW)      50.6          50.6
Downlink (per carrier):
   Carrier Frequency                            (MHz)     18,400        18,400
   Atmospheric and Rain Losses                  (dB)        0.2           6.7
   Free Space Loss                              (dB)       209.1         209.1
   Rx E/S Antenna Diameter                      (m)         1.80          1.80
   Antenna Mis-pointing Error                   (dB)       0.50          0.50
   Rx E/S Antenna Gain                          (dB)       48.9           48.9
   Rx E/S G/T                                   (dB/K)     25.9           22.8
   System (LNA+Sky) Noise Temperature           (K)         200           414
Total Link:
   (C/N) - Thermal Uplink                       (dB)       19.7          19.7
   (C/N) - Thermal Downlink                     (dB)       16.7           7.1
   (C/I) - Intra-system                         (dB)       20.0          20.0
   (C/I) up - Adjacent Satellite Interference   (dB)       33.9           33.9
   (C/I) dn - Adjacent Satellite Interference   (dB)       15.0           15.0
   (C/N) - Total Actual                         (dB)       11.3           6.1
   (C/N) - Total Required                       (dB)        6.1           6.1
   Excess Margin                                (dB)        5.2           0.0
   Availability                                 (%)        N/A           99.96



Document Created: 2005-06-09 13:27:42
Document Modified: 2005-06-09 13:27:42

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