Attachment Schedule S DOC 5

This document pretains to SAT-MOD-20130503-00066 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2013050300066_997014

EchoStar-15 Link Budgets
(8PSK Normal Mode)
           Link Parameters                            Rio de Janeiro   Manaus   Recife

Link Geometry:
  Tx E/S Range to Satellite                 (km)         40,504        40,504   40,504
  Rx E/S Range to Satellite                 (km)         36,372        36,048   35,977
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)         11.2          11.2     11.2
  Tx E/S Antenna Gain                       (dB)          65.8          65.8     65.8
  Tx E/S EIRP per Carrier                   (dBW)         77.0          77.0     77.0
  Atmospheric Losses                        (dB)           0.5           0.5      0.5
  Free Space Loss                           (dB)         209.5          209.5    209.5
Satellite:
  G/T towards Tx E/S                        (dB/K)         9.7           9.7      9.7
  Peak EIRP                                 (dBW)         56.5          56.5     56.5
  EIRP towards Rx E/S                       (dBW)         54.7          53.0     53.5
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)         205.6          205.5    205.5
  Rain Attenuation                          (dB)           6.3           5.8      6.2
  Rx E/S Antenna Diameter                   (m)           0.60          0.60     0.60
  Antenna Mis-pointing Error                (dB)          0.40          0.40     0.40
  Rx E/S Antenna Gain                       (dB)          36.5          36.5     36.5
  Rx E/S G/T                                (dB/K)        15.7          15.7     15.7
  Noise Temperature - Clear Sky             (K)           120            120      120
  Noise Temperature - Rain                  (K)           331            322      329
Total Link:
  Noise Bandwidth                           (dB-Hz)       73.6         73.6     73.6
  (C/N) - Thermal Uplink                    (dB)          31.7         31.7     31.7
  (C/N) - Thermal Downlink - Clear Sky      (dB)          19.3         17.7     18.2
  (C/N) - Thermal Downlink - Rain Down      (dB)           8.6          7.6      7.6
  (C/I) - Adjacent Satellite Interference   (dB)          31.1         29.5     30.0
  (C/N+I) - Clear Sky                       (dB)          18.5         17.0     17.5
  (C/N+I) - Rain Down                       (dB)           8.5          7.6      7.5
  (C/N+I) - Total Required                  (dB)           7.5          7.5      7.5
  Downlink Margin - Clear Sky               (dB)          11.0          9.5     10.0
  Downlink Margin - Rain Down               (dB)           1.0          0.1      0.0
  Downlink Availability                     (%)           99.97        99.81    99.92



Document Created: 2013-05-14 14:11:08
Document Modified: 2013-05-14 14:11:08

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