Attachment Schedule S DOC 2

This document pretains to SES-MOD-20141022-00808 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2014102200808_1066253

EchoStar-3 Link Budgets
(QPSK2)
           Link Parameters                            Antofagasta   Santiago   Puerto Montt

Link Geometry:
  Tx E/S Range to Satellite                 (km)        37,232      37,232       37,232
  Rx E/S Range to Satellite                 (km)        36,670      37,232       37,760
Uplink (per carrier):
  Carrier Frequency                         (MHz)       17,500      17,500       17,500
  Tx E/S Antenna Diameter                   (m)          13.2         13.2         13.2
  Tx E/S Power to Antenna                   (dBW)         7.8          7.8          7.8
  Tx E/S Antenna Gain                       (dB)         65.8         65.8         65.8
  Tx E/S EIRP per Carrier                   (dBW)        73.6         73.6         73.6
  Atmospheric and Other Losses              (dB)          0.2          0.2          0.2
  Free Space Loss                           (dB)        208.7        208.7        208.7
Satellite:
  G/T towards Tx E/S                        (dB/K)        4.8          4.8          4.8
  Peak EIRP                                 (dBW)        54.7         54.7         54.7
  EIRP towards Rx E/S                       (dBW)        47.2         51.7         48.2
Downlink (per carrier):
  Carrier Frequency                         (MHz)       12,500      12,500       12,500
  Atmospheric Losses                        (dB)          0.1          0.1          0.1
  Free Space Loss                           (dB)        205.7        205.8        205.9
  Rain Attenuation                          (dB)          1.0          2.9          4.3
  Rx E/S Antenna Diameter                   (m)          0.45         0.45         0.76
  Antenna Mis-pointing Error                (dB)         0.40         0.40         0.40
  Rx E/S Antenna Gain                       (dB)         34.0         34.0         38.5
  Rx E/S G/T                                (dB/K)       13.2         13.2         17.7
  Noise Temperature - Clear Sky             (K)          120          120          120
  Noise Temperature - Rain                  (K)          179          255          292
Total Link:
  Noise Bandwidth                           (dB-Hz)       73.0        73.0         73.0
  (C/N) - Thermal Uplink                    (dB)          25.0        25.0         25.0
  (C/N) - Thermal Downlink - Clear Sky      (dB)           9.8        14.2         15.1
  (C/N) - Thermal Downlink - Rain Down      (dB)           7.0         8.0          7.0
  (C/I) - Adjacent Satellite Interference   (dB)          18.6        23.0         23.9
  (C/N+I) - Clear Sky                       (dB)           9.1        13.2         14.1
  (C/N+I) - Rain Down                       (dB)           6.7         7.8          6.8
  (C/N+I) - Total Required                  (dB)           6.6         6.6          6.6
  Downlink Margin - Clear Sky               (dB)           2.5         6.6          7.5
  Downlink Margin - Rain Down               (dB)           0.1         1.2          0.2
  Downlink Availability                     (%)          99.98       99.98        99.98



Document Created: 2014-10-28 11:38:06
Document Modified: 2014-10-28 11:38:06

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