Attachment Schedule S DOC 10

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

IBFS_SATAMD2011040800070_891603

EchoStar 17/24 GHz Link Budget

                 Link Parameters                          Clear Sky      Faded D/L
                                                        (Mexico City)   (Mexico City)


Link Geometry:
     Tx E/S Range to Satellite              (km)           38,983          38,983
     Rx E/S Range to Satellite              (km)           37,592          37,592
Uplink:
     Carrier Frequency                      (MHz)          25,198          25,198
     Tx E/S Antenna Diameter                (m)              12.0            12.0
     Max. Tx E/S Power to Antenna           (W)              15.0            15.0
     Max. Tx E/S Power Density to Antenna   (dBW/MHz)        -7.1            -7.1
     Tx E/S Antenna Gain                    (dB)             68.2            68.2
     Tx E/S EIRP per Carrier                (dBW)            80.0            80.0
     Atmospheric and Other Losses           (dB)              0.5             0.5
     Free Space Loss                        (dB)            212.3           212.3
Satellite:
     G/T towards Tx E/S                     (dB/K)          17.2            17.2
     EIRP per Carrier towards Rx E/S        (dBW)           62.8            62.8
Downlink:
     Carrier Frequency                      (MHz)          17,748          17,748
     Atmospheric and Other Losses           (dB)              0.2             5.1
     Free Space Loss                        (dB)            208.9           208.9
     Rx E/S Antenna Diameter                (m)              0.45            0.45
     Rx E/S Antenna Gain                    (dB)             36.2            36.2
     Pointing Error                         (dB)              0.5             0.5
     Rx E/S G/T                             (dB/K)           13.2            10.4
     System (LNA+Sky) Noise Temperature     (K)              200             387
Total Link:
     Bandwidth                              (dB-Hz)        78.90           78.90
     C/N - Thermal Uplink                   (dB)            34.1            34.1
     C/N - Thermal Downlink                 (dB)            16.1             8.3
     C/I - Aggregate uplink ASI             (dB)            36.9            36.9
     C/I - Aggregate downlink ASI           (dB)            18.2            18.2
     C/I - Other Link Degradations          (dB)            22.0            22.0
     C/(N+I) - Total, Actual                (dB)            13.3             7.7
     C/(N+I) - Total, Required              (dB)             7.5             7.5
     Excess Margin                          (dB)             5.8             0.2
     Availability                           (%)             N/A            99.96
Aggregate Interference Assessment:
     (C/N) - no ASI                         (dB)            15.0             8.1
     Degradation due to aggregate ASI       (dB)             1.7             0.4



Document Created: 2011-06-02 10:56:24
Document Modified: 2011-06-02 10:56:24

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