Attachment Schedule S DOC 2

This document pretains to SES-MOD-20141022-00805 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2014102200805_1065975

EchoStar-3 Link Budgets (QPSK2) Link Parameters Antofagasta Santiago Puerto Montt Link Geometry: Tx E/S Range to Satellite (km) 37,232 37,232 37,232 Rx E/S Range to Satellite (km) 36,670 37,232 37,760 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) 7.8 7.8 7.8 Tx E/S Antenna Gain (dB) 65.8 65.8 65.8 Tx E/S EIRP per Carrier (dBW) 73.6 73.6 73.6 Atmospheric and Other Losses (dB) 0.2 0.2 0.2 Free Space Loss (dB) 208.7 208.7 208.7 Satellite: G/T towards Tx E/S (dB/K) 4.8 4.8 4.8 Peak EIRP (dBW) 54.7 54.7 54.7 EIRP towards Rx E/S (dBW) 47.2 51.7 48.2 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) 205.7 205.8 205.9 Rain Attenuation (dB) 1.0 2.9 4.3 Rx E/S Antenna Diameter (m) 0.45 0.45 0.76 Antenna Mis-pointing Error (dB) 0.40 0.40 0.40 Rx E/S Antenna Gain (dB) 34.0 34.0 38.5 Rx E/S G/T (dB/K) 13.2 13.2 17.7 Noise Temperature - Clear Sky (K) 120 120 120 Noise Temperature - Rain (K) 179 255 292 Total Link: Noise Bandwidth (dB-Hz) 73.0 73.0 73.0 (C/N) - Thermal Uplink (dB) 25.0 25.0 25.0 (C/N) - Thermal Downlink - Clear Sky (dB) 9.8 14.2 15.1 (C/N) - Thermal Downlink - Rain Down (dB) 7.0 8.0 7.0 (C/I) - Adjacent Satellite Interference (dB) 18.6 23.0 23.9 (C/N+I) - Clear Sky (dB) 9.1 13.2 14.1 (C/N+I) - Rain Down (dB) 6.7 7.8 6.8 (C/N+I) - Total Required (dB) 6.6 6.6 6.6 Downlink Margin - Clear Sky (dB) 2.5 6.6 7.5 Downlink Margin - Rain Down (dB) 0.1 1.2 0.2 Downlink Availability (%) 99.98 99.98 99.98


Document Created: 2014-10-24 12:57:12
Document Modified: 2014-10-24 12:57:12
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