Attachment Schedule S document

This document pretains to SAT-LOA-20061222-00157 for Application to Launch and Operate on a Satellite Space Stations filing.

IBFS_SATLOA2006122200157_540784

EchoStar 17 GHz RBW DBS Link Budget

               Link Parameters                      Clear Sky    Faded D/L   Faded D/L
                                                   (New York)   (New York)    (Atlanta)


Link Geometry:
   Tx E/S Range to Satellite (Cheyenne)   (km)       39,005       39,005      39,005
   Rx E/S Range to Satellite              (km)       37,675       37,675      39,630
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)       57.4         57.4         58.5
Downlink:
   Carrier Frequency                      (MHz)      17,500       17,500      17,500
   Atmospheric and Other Losses           (dB)         0.3          3.8         5.5
   Free Space Loss                        (dB)        208.8        208.8      209.3
   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          10.8       10.3
   System (LNA+Sky) Noise Temp.           (K)          200          341        380
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)        16.2         10.4         8.8
   (C/I) - Other Link Degradations        (dB)        20.0          20.0       20.0
   (C/N) - Total Actual                   (dB)        14.6          9.9         8.5
   (C/N) - Total Required                 (dB)        4.8           4.8         4.8
   Excess Margin                          (dB)         9.8          5.1         3.7
   Availability                           (%)         N/A          99.80       99.80



Document Created: 2006-12-28 11:47:32
Document Modified: 2006-12-28 11:47:32

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