Attachment Schedule S document

This document pretains to SAT-AMD-20060727-00083 for Amended Filing on a Satellite Space Stations filing.

IBFS_SATAMD2006072700083_516097

     Table 6 – Link Budget for High-Power Notification Forward Link to
                  Personal Accessory User Terminal (SCPC)

Representative Forward Link Budget
UT Type                                                 Personal Accessory
Carrier Type                                          High Power Notification
General Parameters                             Unit
E/S elevation angle                            deg              28.0
Minimum user elevation angle                   deg              20.0
Uplink range                                   km             38792
Downlink range                                 km             39554
Uplink frequency                               GHz            29.625
Downlink frequency                             GHz             2.200
Bandwidth/carrier                              kHz              8.0
Uplink
Uplink E/S antenna diameter                      m             11.0
Uplink E/S antenna peak gain                    dBi           68.1
E/S antenna pointing error                      dB             0.5
Clear-sky uplink EIRP                          dBW            56.1
Rain faded uplink EIRP                         dBW            72.9
Free space loss                                 dB            213.7
Rain attenuation                                dB            16.8
Satellite antenna pointing error                dB             0.3
Satellite antenna receive system noise temp.   dB-K            30.9
Effective satellite antenna G/T                dB/K            24.8
Uplink C/No                                    dBHz           95.3
Uplink C/IMo                                   dBHz           103.5
Uplink C/IoASI                                 dBHz            94.2
Uplink C/Io Intra-system                       dBHz           199.0
Aggregate uplink C/Io                          dBHz            94.2
Downlink
Satellite EIRP/carrier                         dBW             59.3
Free space loss                                 dB            191.2
Atmospheric loss                                dB             0.1
User terminal antenna gain                      dB              3.0
User terminal system noise temperature         dB-K            25.0
User terminal G/T                              dB/K           -22.0
Downlink propagation margin                     dB             31.5
Downlink C/No                                  dBHz            43.1
Downlink C/IMo                                 dBHz            54.8
Downlink C/Io Intra-system                     dBHz           199.0
Downlink C/Io ext                              dBHz            53.1
Aggregate downlink C/Io                        dBHz            53.1
End-to-End Performance
End-to-end C/No                                dBHz            43.1
End-to-end aggregate C/Io                      dBHz            53.1
End-to-end C/IMo                               dBHz            54.8
Total aggregate C/(No+Io+IMo)                  dBHz            42.4
Total aggregate C/(N+I+IM)                      dB              3.4
Required C/N                                    dB              3.4
System Margin                                   dB              0.0



Document Created: 2006-07-31 14:43:52
Document Modified: 2006-07-31 14:43:52

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