Attachment Schedule S document

This document pretains to SAT-LOA-20061222-00163 for Application to Launch and Operate on a Satellite Space Stations filing.

IBFS_SATLOA2006122200163_540899

EchoStar 17 GHz RBW DBS Link Budget

                 Link Parameters                      Clear Sky     Faded D/L    Faded D/L
                                                     (Anchorage)   (Anchorage)   (Honolulu)


Link Geometry:
     Tx E/S Range to Satellite (Cheyenne)   (km)       39,007        39,007       39,007
     Rx E/S Range to Satellite              (km)       39,480        39,480       36,409
Uplink (per carrier):
     Carrier Frequency                      (MHz)      25,000        25,000       25,000
     Tx E/S Antenna Diameter                (m)         12.0          12.0         12.0
     Tx E/S Power to Antenna                (W)          53.7          53.7        53.7
     Tx E/S Antenna Gain                    (dB)        68.2          68.2         68.2
     Tx E/S EIRP per Carrier                (dBW)        85.5          85.5         85.5
     Atmospheric and Other Losses           (dB)         0.5           0.5          0.5
     Free Space Loss                        (dB)        212.2         212.2        212.2
Satellite:
     G/T towards Tx E/S                     (dB/K)      10.3          10.3          10.3
     EIRP per Carrier towards Rx E/S        (dBW)       56.7          56.7          54.4
Downlink:
     Carrier Frequency                      (MHz)      17,500        17,500       17,500
     Atmospheric and Other Losses           (dB)         0.3           2.7          4.6
     Free Space Loss                        (dB)        209.2         209.2        208.5
     Rx E/S Antenna Diameter                (m)         0.45          0.45         0.45
     Rx E/S Antenna Gain                    (dB)        36.1          36.1         36.1
     Rx E/S G/T                             (dB/K)       13.1          11.0        10.4
     System (LNA+Sky) Noise Temp.           (K)          200           326          374
Total Link:
     Carrier Noise Bandwidth                (kHz)      24,000        24,000       24,000
     (C/N) - Thermal Uplink                 (dB)        37.8          37.8         37.8
     (C/N) - Thermal Downlink               (dB)        15.1          10.5          6.4
     (C/I) - Other Link Degradations        (dB)        20.0          20.0         20.0
     (C/N) - Total Actual                   (dB)        13.8           10.1         6.3
     (C/N) - Total Required                 (dB)         4.8           4.8          4.8
     Excess Margin                          (dB)         9.0           5.3          1.5
     Availability                           (%)         N/A           99.80        99.80



Document Created: 2006-12-28 11:54:34
Document Modified: 2006-12-28 11:54:34

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