Attachment Schedule S DOC 3

This document pretains to SES-MOD-20141022-00804 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2014102200804_1065987

EchoStar-3 Link Budgets (8PSK) 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 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) 0.5 2.4 3.5 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 16.1 Noise Temperature - Clear Sky (K) 120 120 173 Noise Temperature - Rain (K) 148 237 272 Total Link: Noise Bandwidth (dB-Hz) 73.3 73.3 73.3 (C/N) - Thermal Uplink (dB) 24.7 24.7 24.7 (C/N) - Thermal Downlink - Clear Sky (dB) 9.5 13.9 13.2 (C/N) - Thermal Downlink - Rain Down (dB) 8.1 8.5 7.7 (C/I) - Adjacent Satellite Interference (dB) 18.3 22.7 23.6 (C/N+I) - Clear Sky (dB) 8.8 12.9 12.5 (C/N+I) - Rain Down (dB) 7.6 8.2 7.5 (C/N+I) - Total Required (dB) 7.5 7.5 7.5 Downlink Margin - Clear Sky (dB) 1.3 5.4 5.0 Downlink Margin - Rain Down (dB) 0.1 0.7 0.0 Downlink Availability (%) 99.91 99.97 99.97


Document Created: 2014-10-24 13:47:06
Document Modified: 2014-10-24 13:47:06
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