Attachment Sched S doc LB1

This document pretains to SAT-AMD-20080213-00043 for Amended Filing on a Satellite Space Stations filing.

IBFS_SATAMD2008021300043_622610

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) 37,590 37,590 37,590 37,590 Rx E/S Range to Satellite (km) 38,421 38,421 37,155 37,155 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) 54.6 54.6 53.4 53.4 Downlink: Carrier Frequency (MHz) 17,500 17,500 17,500 17,500 Atmospheric and Other Losses (dB) 0.2 5.4 0.1 4.8 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 10.2 13.1 10.3 System (LNA+Sky) Noise Temperature (K) 200 394 200 382 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) 13.4 5.3 12.6 5.1 C/I - Aggregate uplink ASI (dB) 37.0 37.0 37.0 37.0 C/I - Aggregate downlink ASI (dB) 17.7 17.7 19.8 19.8 C/I - Other Link Degradations (dB) 20.0 20.0 20.0 20.0 C/(N+I) - Total, Actual (dB) 11.3 4.9 11.1 4.8 C/(N+I) - Total, Required (dB) 4.8 4.8 4.8 4.8 Excess Margin (dB) 6.5 0.1 6.3 0.0 Availability (%) N/A 99.87 N/A 99.98 Aggregate Interference Assessment: (C/N) - no ASI (dB) 12.4 5.1 11.8 4.9 Degradation due to aggregate ASI (dB) 1.1 0.2 0.6 0.1


Document Created: 2008-02-20 10:01:06
Document Modified: 2008-02-20 10:01:06
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