Attachment Schedule S document

This document pretains to SAT-MOD-20051021-00206 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2005102100206_461499

      Table A.13-6 – 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                 57.2
Rain faded uplink EIRP                            dBW                 74.0
Free space loss                                    dB                213.7
Rain attenuation                                   dB                 16.8
Effective satellite antenna peak gain              dBi                58.0
Satellite antenna pointing error                   dB                  0.3
Satellite antenna receive system noise temp.      dB-K                32.9
Effective satellite antenna G/T                   dB/K                24.8
Uplink C/N o                                      dBHz                96.4
Uplink C/IM o                                     dBHz               104.6
Uplink C/I oASI                                   dBHz                95.3
Uplink C/I o Intra-system                         dBHz               199.0
Aggregate uplink C/I o                            dBHz                95.3
Downlink
Satellite EIRP/carrier                            dBW                 60.4
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                 32.6
Downlink C/N o                                    dBHz                43.1
Downlink C/IM o                                   dBHz                54.8
Downlink C/I o Intra-system                       dBHz               199.0
Downlink C/I o ext                                dBHz                53.1
Aggregate downlink C/I o                          dBHz                53.1
End-to-End Performance
End-to-end C/N o                                  dBHz                43.1
End-to-end aggregate C/I o                        dBHz                53.1
End-to-end C/IM o                                 dBHz                54.8
Total aggregate C/(N o +I o +IM o )               dBHz                42.5
Total aggregate C/(N+I+IM)                         dB                  3.4
Required C/N                                       dB                  3.4
System Margin                                      dB                 0.0



Document Created: 2005-10-25 12:24:16
Document Modified: 2005-10-25 12:24:16

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