Attachment Schedule S DOC 4

This document pretains to SAT-AMD-20110408-00070 for Amended Filing on a Satellite Space Stations filing.

IBFS_SATAMD2011040800070_891614

EchoStar 17/24 GHz Link Budget Link Parameters Clear Sky Faded D/L Clear Sky Faded D/L (New York) (New York) (Miami) (Miami) Link Geometry: Tx E/S Range to Satellite (Cheyenne) (km) 38,983 38,983 38,983 38,983 Rx E/S Range to Satellite (km) 37,670 37,670 36,853 36,853 Uplink: Carrier Frequency (MHz) 25,000 25,000 25,000 25,000 Tx E/S Antenna Diameter (m) 12.0 12.0 12.0 12.0 Max. Tx E/S Power to Antenna (W) 5.0 5.0 5.0 5.0 Max. Tx E/S Power Density to Antenna (dBW/MHz) -6.6 -6.6 -6.6 -6.6 Tx E/S Antenna Gain (dB) 68.2 68.2 68.2 68.2 Tx E/S EIRP per Carrier (dBW) 75.2 75.2 75.2 75.2 Atmospheric and Other Losses (dB) 0.5 0.5 0.5 0.5 Free Space Loss (dB) 212.2 212.2 212.2 212.2 Satellite: G/T towards Tx E/S (dB/K) 17.2 17.2 17.2 17.2 EIRP per Carrier towards Rx E/S (dBW) 55.2 55.2 59.0 59.0 Downlink: Carrier Frequency (MHz) 17,500 17,500 17,500 17,500 Atmospheric and Other Losses (dB) 0.2 3.5 0.2 6.8 Free Space Loss (dB) 208.8 208.8 208.6 208.6 Rx E/S Antenna Diameter (m) 0.45 0.45 0.45 0.45 Rx E/S Antenna Gain (dB) 36.1 36.1 36.1 36.1 Pointing Error (dB) 0.5 0.5 0.5 0.5 Rx E/S G/T (dB/K) 13.1 10.7 13.1 9.9 System (LNA+Sky) Noise Temperature (K) 200 349 200 416 Total Link: Bandwidth (dB-Hz) 73.6 73.6 73.6 73.6 C/N - Thermal Uplink (dB) 34.6 34.6 34.6 34.6 C/N - Thermal Downlink (dB) 13.8 8.0 17.8 8.0 C/I - Aggregate uplink ASI (dB) 37.5 37.5 37.5 37.5 C/I - Aggregate downlink ASI (dB) 18.9 18.9 19.9 19.9 C/I - Other Link Degradations (dB) 22.0 22.0 22.0 22.0 C/(N+I) - Total, Actual (dB) 12.1 7.5 14.7 7.6 C/(N+I) - Total, Required (dB) 7.5 7.5 7.5 7.5 Excess Margin (dB) 4.6 0.0 7.2 0.1 Availability (%) N/A 99.68 N/A 99.74 Aggregate Interference Assessment: (C/N) - no ASI (dB) 13.1 7.8 16.3 7.8 Degradation due to aggregate ASI (dB) 1.0 0.3 1.6 0.3


Document Created: 2011-06-02 10:59:32
Document Modified: 2011-06-02 10:59:32
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