Attachment Schedule S document SAT-MOD-20050110-00004

Attachment Schedule S document

This document pretains to SAT-MOD-20050110-00004 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2005011000004_413066

Table A.13-7 – Link Budget for Voice-Rate Return Link from
Handheld User Terminal using FDMA

Representative Return Link Budget
UT Type Handheld Terminal
Carrier Type FDMA
General Parameters Unit
E/S elevation angle deg 28.0
Minimum user elevation angle deg 20.0
Uplink range km 39554
Downlink range km 38792
Uplink frequency GHz 2.020
Downlink frequency GHz 19.700
Bandwidth/carrier kHz 8.0
Uplink
Uplink EIRP dBW 0.0
Free space loss dB 190.5
Atmospheric loss dB 0.1
Uplink propagation margin dB 11.9
Effective satellite antenna gain dBi 43.0
Satellite receive system noise temperature dB-K 26.0
Effective satellite antenna G/T dB/K 17.0
Uplink C/N o dBHz 43.1
Uplink C/I o Intra-system dBHz 48.2
Uplink C/I o ext dBHz 53.1
Aggregate uplink C/I o dBHz 47.0
Downlink
Satellite EIRP dBW 8.5
Free space loss dB 210.1
Atmospheric attenuation dB 0.5
Rain attenuation dB 8.1
E/S antenna gain dB 64.5
E/S antenna pointing error dB 0.3
Nominal system noise temperature dB-K 23.9
Nominal E/S G/T dB/K 40.3
System noise temperature degradation in rain dB 2.6
Rain-degraded system noise temperature dB-K 26.5
Rain-degraded E/S G/T dB/K 37.7
Downlink C/No dBHz 56.1
Downlink C/IM o dBHz 64.7
Downlink C/I o Intra-system dBHz 60.5
Downlink C/I o ASI dBHz 63.7
Aggregate downlink C/I o dBHz 58.8
End-to-End Performance
End-to-end C/N o dBHz 42.9
End-to-end aggregate C/I o dBHz 46.7
End-to-end C/IM o dBHz 64.7
Total aggregate C/(N o +I o +IM o ) dBHz 41.4
Total aggregate C/(N+I+IM) dB 2.3
Required C/N dB 2.3
System Margin dB 0.0

Document Created: 2005-01-12 14:56:17
Document Modified: 2005-01-12 14:56:17

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