Attachment Schedule S DOC 1

This document pretains to SAT-MOD-20120814-00130 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2012081400130_964294

EchoStar-15 Link Budgets (QPSK Normal Mode) Link Parameters Rio de Janeiro Manaus Recife Link Geometry: Tx E/S Range to Satellite (km) 40,522 40,522 40,522 Rx E/S Range to Satellite (km) 36,371 36,055 35,848 Uplink (per carrier): Carrier Frequency (MHz) 17,500 17,500 17,500 Tx E/S Antenna Diameter (m) 13.2 13.2 13.2 Tx E/S Power to Antenna (dBW) 11.2 11.2 11.2 Tx E/S Antenna Gain (dB) 65.8 65.8 65.8 Tx E/S EIRP per Carrier (dBW) 77.0 77.0 77.0 Atmospheric and Other Losses (dB) 0.5 0.5 0.5 Free Space Loss (dB) 209.5 209.5 209.5 Satellite: G/T towards Tx E/S (dB/K) 9.7 9.7 9.7 Peak EIRP (dBW) 56.5 56.5 56.5 EIRP towards Rx E/S (dBW) 54.7 53.0 53.5 Downlink (per carrier): Carrier Frequency (MHz) 12,500 12,500 12,500 Atmospheric Losses (dB) 0.1 0.1 0.1 Free Space Loss (dB) 205.6 205.5 205.5 Rain Attenuation (dB) 7.4 7.5 7.5 Rx E/S Antenna Diameter (m) 0.60 0.60 0.60 Antenna Mis-pointing Error (dB) 0.40 0.40 0.40 Rx E/S Antenna Gain (dB) 36.5 36.5 36.5 Rx E/S G/T (dB/K) 15.7 15.7 15.7 Noise Temperature - Clear Sky (K) 120 120 120 Noise Temperature - Rain (K) 346 346 347 Total Link: Noise Bandwidth (dB-Hz) 73.2 73.2 73.2 (C/N) - Thermal Uplink (dB) 32.1 32.1 32.1 (C/N) - Thermal Downlink - Clear Sky (dB) 19.7 18.1 18.6 (C/N) - Thermal Downlink - Rain Down (dB) 7.6 6.0 6.5 (C/I) - Adjacent Satellite Interference (dB) 31.5 29.9 30.4 (C/N+I) - Clear Sky (dB) 18.8 17.4 17.9 (C/N+I) - Rain Down (dB) 7.6 5.9 6.4 (C/N+I) - Total Required (dB) 5.8 5.8 5.8 Downlink Margin - Clear Sky (dB) 13.0 11.6 12.1 Downlink Margin - Rain Down (dB) 1.8 0.1 0.6 Downlink Availability (%) 99.98 99.89 99.95


Document Created: 2012-08-22 16:12:18
Document Modified: 2012-08-22 16:12:18
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