Attachment Sched S doc LB1

This document pretains to SAT-AMD-20080213-00042 for Amended Filing on a Satellite Space Stations filing.

IBFS_SATAMD2008021300042_622727

EchoStar 17/24 GHz Link Budget Link Parameters Clear Sky Faded D/L Clear Sky Faded D/L (New York) (New York) (Los Angeles) (Los Angeles) Link Geometry: Tx E/S Range to Satellite (Cheyenne) (km) 37,621 37,621 37,621 37,621 Rx E/S Range to Satellite (km) 38,600 38,600 37,096 37,096 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 Tx E/S Power to Antenna (W) 4.7 4.7 4.7 4.7 Tx E/S Power Density to Antenna (dBW/MHz) -6.5 -6.5 -6.5 -6.5 Tx E/S Antenna Gain (dB) 68.2 68.2 68.2 68.2 Tx E/S EIRP per Carrier (dBW) 74.9 74.9 74.9 74.9 Atmospheric and Other Losses (dB) 0.5 0.5 0.5 0.5 Free Space Loss (dB) 211.9 211.9 211.9 211.9 Satellite: G/T towards Tx E/S (dB/K) 10.3 10.3 10.3 10.3 EIRP per Carrier towards Rx E/S (dBW) 53.4 53.4 51.8 51.8 Downlink: Carrier Frequency (MHz) 17,500 17,500 17,500 17,500 Atmospheric and Other Losses (dB) 0.2 4.4 0.1 3.4 Free Space Loss (dB) 209.0 209.0 208.7 208.7 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 10.4 13.1 10.8 System (LNA+Sky) Noise Temperature (K) 200 370 200 343 Total Link: Bandwidth (dB-Hz) 73.20 73.20 73.20 73.20 C/N - Thermal Uplink (dB) 28.2 28.2 28.2 28.2 C/N - Thermal Downlink (dB) 12.2 5.3 11.0 5.4 C/I - Aggregate uplink ASI (dB) 37.5 37.5 37.5 37.5 C/I - Aggregate downlink ASI (dB) 16.9 16.9 18.7 18.7 C/I - Other Link Degradations (dB) 20.0 20.0 20.0 20.0 C/(N+I) - Total, Actual (dB) 10.3 4.8 9.8 5.0 C/(N+I) - Total, Required (dB) 4.8 4.8 4.8 4.8 Excess Margin (dB) 5.5 0.0 5.0 0.2 Availability (%) N/A 99.79 N/A 99.96 Aggregate Interference Assessment: (C/N) - no ASI (dB) 11.4 5.1 10.4 5.2 Degradation due to aggregate ASI (dB) 1.1 0.3 0.6 0.2


Document Created: 2008-02-20 14:27:45
Document Modified: 2008-02-20 14:27:45
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