Attachment Schedule S document

This document pretains to SAT-MOD-20050926-00182 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2005092600182_456652

              Table A.13-4 – Link Budget for Voice-Rate Forward Link to
                     Personal Accessory User Terminal using TDMA

Representative Forw ard Link Budget
UT T ype                                                       Personal Accessory
Carrier Type                                                        TDM A
General Parameters                                U nit
E/S elevation angle                               deg                28.0
M inimum user elevation angle                     deg                 20.0
U plink range                                     km                38792
D ownlink range                                   km                39554
U plink frequency                                 G Hz              29.625
D ownlink frequency                               G Hz               2.200
B andwidth/carrier                                kH z               200.0
U plink
U plink E/S antenna diameter                       m                  11.0
U plink E/S antenna peak gain                     dBi                 68.1
E/S antenna pointing error                        dB                  0.5
Clear-sky uplink EIRP                            dBW                  44.3
Rain faded uplink EIRP                           dBW                  61.1
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
U plink C/N o                                    dB H z              83.5
U plink C/IM o                                   dB H z              91.7
U plink C/I oASI                                 dB H z              82.4
U plink C/I o Intra-system                       dB H z              75.1
Aggregate uplink C/I o                           dB H z              74.4
D ow nlink
Satellite EIRP/carrier                           dBW                  47.5
Free space loss                                   dB                 191.2
Atmospheric loss                                  dB                  0.1
U ser terminal antenna gain                       dB                  3.0
U ser terminal system noise temperature          dB-K                 25.0
U ser terminal G/T                               dB/K                -22.0
D ownlink propagation margin                      dB                  5.0
D ownlink C/N o                                  dB H z               57.8
D ownlink C/IM o                                 dB H z               69.5
D ownlink C/I o Intra-system                     dB H z               65.7
D ownlink C/I o ext                              dB H z               67.8
Aggregate downlink C/I o                         dB H z               63.6
End-to-End Performance
End-to-end C/N o                                 dB H z               57.8
End-to-end aggregate C/I o                       dB H z               63.3
End-to-end C/IM o                                dB H z               69.5
Total aggregate C/(N o +I o +IM o )              dB H z               56.5
Total aggregate C/(N +I+IM )                      dB                  3.4
Required C/N                                      dB                  3.4
System M argin                                    dB                   0.0



Document Created: 2005-09-27 15:39:09
Document Modified: 2005-09-27 15:39:09

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