Attachment Schedule S DOC 11

This document pretains to SAT-MOD-20110504-00085 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2011050400085_891577

EchoStar 17/24 GHz Link Budget Link Parameters Clear Sky Faded D/L Clear Sky Faded D/L Clear Sky Faded D/L Clear Sky Faded D/L (Los Angeles) (Los Angeles) (New York) (New York) (Miami) (Miami) (Puerto Rico) (Puerto Rico) Link Geometry: Tx E/S Range to Satellite (km) 37,944 37,944 37,891 37,891 37,098 37,098 37,944 37,944 Rx E/S Range to Satellite (km) 38,362 38,362 37,577 37,577 36,528 36,528 36,319 36,319 Uplink: Carrier Frequency (MHz) 25,000 25,000 25,000 25,000 25,000 25,000 25,000 25,000 Tx E/S Antenna Diameter (m) 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.0 Max. Tx E/S Power to Antenna (W) 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 Max. Tx E/S Power Density to Antenna (dBW/MHz) -7.1 -7.1 -7.1 -7.1 -7.1 -7.1 -7.1 -7.1 Tx E/S Antenna Gain (dB) 68.2 68.2 68.2 68.2 68.2 68.2 68.2 68.2 Tx E/S EIRP per Carrier (dBW) 79.9 79.9 79.9 79.9 79.9 79.9 79.9 79.9 Atmospheric and Other Losses (dB) 0.5 0.5 0.7 0.7 0.5 0.5 0.7 0.5 Free Space Loss (dB) 212.0 212.0 212.0 212.0 211.8 211.8 212.0 212.0 Satellite: G/T towards Tx E/S (dB/K) 18.6 18.6 15.0 15.0 18.7 18.7 18.6 18.6 EIRP per Carrier towards Rx E/S (dBW) 59.6 59.6 62.5 62.5 65.5 65.5 64.8 64.8 Downlink: Carrier Frequency (MHz) 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 Atmospheric and Other Losses (dB) 0.3 2.5 0.2 4.9 0.2 7.6 0.2 7.3 Free Space Loss (dB) 209.0 209.0 208.8 208.8 208.6 208.6 208.5 208.5 Rx E/S Antenna Diameter (m) 0.45 0.45 0.45 0.45 0.45 0.45 0.45 0.45 Rx E/S Antenna Gain (dB) 36.1 36.1 36.1 36.1 36.1 36.1 36.1 36.1 Pointing Error (dB) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Rx E/S G/T (dB/K) 13.1 11.2 13.1 10.3 13.1 9.8 13.1 9.8 System (LNA+Sky) Noise Temperature (K) 200 311 200 382 200 427 200 423 Total Link: Bandwidth (dB-Hz) 78.9 78.9 78.9 78.9 78.9 78.9 78.9 78.9 C/N - Thermal Uplink (dB) 35.7 35.7 32.0 32.0 36.0 36.0 35.5 35.7 C/N - Thermal Downlink (dB) 12.6 8.5 15.8 8.3 19.0 8.4 18.4 8.0 C/I - Aggregate uplink ASI (dB) 37.2 37.2 37.0 37.0 37.4 37.4 37.0 37.2 C/I - Aggregate downlink ASI (dB) 20.9 20.9 20.9 20.9 21.2 21.2 20.5 20.5 C/I - Other Link Degradations (dB) 15.6 15.6 18.0 18.0 15.9 15.9 21.6 21.6 C/(N+I) - Total, Actual (dB) 10.4 7.5 12.9 7.7 13.4 7.5 15.1 7.6 C/(N+I) - Total, Required (dB) 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 Excess Margin (dB) 2.9 0.0 5.4 0.2 5.9 0.0 7.6 0.1 Availability (%) N/A 99.87 N/A 99.87 N/A 99.79 N/A 99.72 Aggregate Interference Assessment: (C/N) - no ASI (dB) 10.8 7.7 13.7 7.9 14.2 7.7 16.6 7.8 Degradation due to aggregate ASI (dB) 0.4 0.2 0.8 0.2 0.8 0.2 1.5 0.2


Document Created: 2011-06-02 10:48:12
Document Modified: 2011-06-02 10:48:12
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