Attachment Schedule S DOC 8

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

IBFS_SATAMD2011040800070_891606

EchoStar 17/24 GHz Link Budget

              Link Parameters                           Clear Sky     Faded D/L      Clear Sky    Faded D/L   Clear Sky   Faded D/L     Clear Sky     Faded D/L
                                                      (Los Angeles) (Los Angeles)   (New York)   (New York)    (Miami)     (Miami)    (Puerto Rico) (Puerto Rico)


Link Geometry:
   Tx E/S Range to Satellite              (km)           39,080        39,080         37,910       37,910      37,948      37,948        39,080        39,080
   Rx E/S Range to Satellite              (km)           39,610        39,610         37,670       37,670      36,853      36,853        36,172        36,172
Uplink:
   Carrier Frequency                      (MHz)          25,000        25,000         25,000       25,000      25,000      25,000        25,000        25,000
   Tx E/S Antenna Diameter                (m)             12.0          12.0           12.0         12.0        12.0        12.0          12.0          12.0
   Max. Tx E/S Power to Antenna           (W)             15.0          15.0           15.0         15.0        15.0        15.0          15.0          15.0
   Max. Tx E/S Power Density to Antenna   (dBW/MHz)        -7.1         -7.1           -7.1          -7.1       -7.1        -7.1           -7.1         -7.1
   Tx E/S Antenna Gain                    (dB)            68.2          68.2           68.2         68.2        68.2        68.2          68.2          68.2
   Tx E/S EIRP per Carrier                (dBW)           79.9          79.9           79.9         79.9        79.9        79.9          79.9          79.9
   Atmospheric and Other Losses           (dB)             0.5          0.5             0.5          0.5        0.5          0.5           0.5          0.5
   Free Space Loss                        (dB)            212.2        212.2          212.0         212.0      212.0       212.0          212.2        212.2
Satellite:
   G/T towards Tx E/S                     (dB/K)          18.5          18.5           15.8         15.8        18.2        18.2          18.5          18.5
   EIRP per Carrier towards Rx E/S        (dBW)           59.2          59.2           61.4         61.4        65.0        65.0          65.4          65.4
Downlink:
   Carrier Frequency                      (MHz)          17,500        17,500         17,500       17,500      17,500      17,500        17,500        17,500
   Atmospheric and Other Losses           (dB)             0.4          1.8             0.2          3.9        0.2          7.1           0.2          7.1
   Free Space Loss                        (dB)            209.3        209.3          208.8         208.8      208.6       208.6          208.5        208.5
   Rx E/S Antenna Diameter                (m)             0.45          0.45           0.45         0.45        0.45        0.45          0.45          0.45
   Rx E/S Antenna Gain                    (dB)            36.1          36.1           36.1         36.1        36.1        36.1          36.1          36.1
   Pointing Error                         (dB)             0.5          0.5             0.5          0.5        0.5          0.5           0.5          0.5
   Rx E/S G/T                             (dB/K)          13.1          11.7           13.1         10.6        13.1         9.9          13.1          10.0
   System (LNA+Sky) Noise Temperature     (K)              200          277            200           359        200         420            200          405
Total Link:
   Bandwidth                              (dB-Hz)         78.9          78.9           78.9        78.9         78.9        78.9          78.9          78.9
   C/N - Thermal Uplink                   (dB)            35.4          35.4           33.0        33.0         35.3        35.3          35.4          35.4
   C/N - Thermal Downlink                 (dB)            11.8           9.0           14.7         8.4         18.5         8.4          19.0           9.0
   C/I - Aggregate uplink ASI             (dB)            36.9          36.9           37.2        37.2         37.2        37.2          36.9          36.9
   C/I - Aggregate downlink ASI           (dB)            20.2          20.2           19.8        19.8         20.6        20.6          21.2          21.2
   C/I - Other Link Degradations          (dB)            14.0          14.0           16.6        16.6         17.0        17.0          21.6          14.0
   C/(N+I) - Total, Actual                (dB)            9.4            7.5           11.7         7.5         13.6         7.6          15.6           7.6
   C/(N+I) - Total, Required              (dB)            7.5            7.5            7.5         7.5         7.5          7.5          7.5            7.5
   Excess Margin                          (dB)            1.9            0.0            4.2         0.0         6.1          0.1          8.1            0.1
   Availability                           (%)             N/A           99.36          N/A         99.80        N/A         99.76         N/A           99.70
Aggregate Interference Assessment:
   (C/N) - no ASI                         (dB)             9.8           7.8           12.5         7.8         14.6         7.8          17.1           7.8
   Degradation due to aggregate ASI       (dB)             0.4           0.2            0.7         0.3         1.0          0.2          1.5            0.2



Document Created: 2011-06-02 10:57:14
Document Modified: 2011-06-02 10:57:14

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