Attachment Schedule S DOC 9

This document pretains to SAT-A/O-20100203-00019 for Authority to Operate on a Satellite Space Stations filing.

IBFS_SATAO2010020300019_799510

ECHOSTAR-6 Link Budgets High Power Mode Link Parameters 1 2 3 13 meter Feeder Link E/S 13 meter Feeder Link E/S 13 meter Feeder Link E/S Nominal Feeder Link Site Nominal Feeder Link Site Nominal Feeder Link Site to to to 45 cm Receive-Only 45 cm Receive-Only 45 cm Receive-Only Modulation Parameters: Information Bit Rate per Carrier (kbps) 27,647 27,647 27,647 FEC Rate 3/4 3/4 3/4 Reed-Solomon Ratio (188/204, None) 188/204 188/204 188/204 Overall Coding Overhead (%) 44.7% 44.7% 44.7% Modulation Type (BPSK/QPSK/8PSK/16QAM) QPSK QPSK QPSK Filter Roll-off Factor ("alpha") (%) 20 20 20 Link Geometry: Tx E/S City Location (name) Cheyenne Cheyenne Cheyenne Tx E/S Longitude (°East) -104.7 -104.7 -104.7 Tx E/S Latitude (°North) 41.1 41.1 41.1 Tx E/S Range to Satellite (Km) 39,021 39,021 39,021 Tx E/S Elevation to Satellite (°) 25.5 25.5 25.5 Tx E/S Altitude (m) 1876.0 1876.0 1876.0 Rx E/S City Location (name) Miami New York Chicago Rx E/S Longitude (°East) -80.3 -74.0 -87.8 Rx E/S Latitude (°North) 25.9 40.8 41.8 Rx E/S Range to Satellite (km) 36,876 37,689 38,192 Rx E/S Elevation to Satellite (°) 53.3 41.2 34.9 Rx E/S Altitude (m) 1.0 15.0 182.0 Uplink (per carrier): Carrier Frequency (MHz) 17,550 17,550 17,550 HPA Power Level (to give required PFD at satellite) (W) 67.1 67.1 67.1 HPA Power in dBW (dBW) 18.3 18.3 18.3 Post-HPA Losses (dB) 2.0 2.0 2.0 Tx E/S Power to Antenna in dBW (dBW) 16.3 16.3 16.3 Tx E/S Antenna Diameter (m) 13.0 13.0 13.0 Antenna Efficiency (%) 65 65 65 Tx E/S Antenna Gain (dB) 65.7 65.7 65.7 Tx E/S EIRP (dBW) 82.0 82.0 82.0 E/S Pointing Loss (dB) 0.1 0.1 0.1 Atmospheric Loss (dB) 0.44 0.44 0.44 Availability up (%) 99.9 99.9 99.9 Rain attenuation (dB) 3.9 3.9 3.9 Free Space Loss (dB) 209.2 209.2 209.2 Satellite: 2 Resulting PFD at Satellite (dBW/m ) -85.3 -85.3 -85.3 Transponder Gain Setting (dB) 10 10 10 G/T towards Tx E/S (dB/K) 3.5 3.5 3.5 EIRP towards Rx E/S (dBW) 52.2 53.5 51.4 Downlink: Carrier Frequency (MHz) 12,450 12,450 12,450 Atmospheric Loss (dB) 0.09 0.11 0.13 Availability down (%) 99.8 99.9 99.9 Rain attenuation (dB) 3.50 2.60 2.80 E/S Pointing Loss (dB) 0.5 0.5 0.5 Free Space Loss (dB) 205.7 205.9 206.0 Rx E/S Antenna Diameter (m) 0.45 0.45 0.45 Rx E/S Antenna Gain (dB) 34.0 34.0 34.0 Rx E/S G/T (dB/K) 13.2 13.2 13.2 System (LNA+Sky) Noise Temp. (K) 120 120 120 Increase in Noise Temp due to rain (K) 150 120 127 Total Link: Carrier Noise Bandwidth (kHz) 24,000 24,000 24,000 (C/N) - Thermal Uplink (dB) 30.6 30.6 30.6 (C/N) - Thermal Downlink - CLEAR SKY (dB) 13.9 15.0 12.8 (C/N) - Thermal Downlink - RAIN DOWN (dB) 6.9 9.4 6.9 (C/I) - Other Link Degradations (dB) 20.0 20.0 20.0 (C/N) - Total Actual - CLEAR SKY (dB) 12.9 13.7 12.0 (C/N) - Total Actual - RAIN DOWN (dB) 6.7 9.0 6.6 (C/N) - Total Required (dB) 5.7 5.7 5.7 Excess Margin - CLEAR SKY (dB) 7.2 8.0 6.3 Excess Margin - RAIN DOWN (dB) 1.0 3.3 0.9


Document Created: 2010-02-04 10:52:04
Document Modified: 2010-02-04 10:52:04
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