Attachment Schedule S document

This document pretains to SAT-MOD-20041008-00196 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2004100800196_406342

Table A.13-6 – Downlink Link Budget for 65 cm antenna (115MG7W) Link Parameters Clear Sky Faded (- 3dB Contour) (-3 dB Contour) Carrier: Uncoded Data Rate (kbps) 117,760 117,760 Modulation QPSK QPSK FEC 0.69 0.69 Carrier Bandwidth (kHz) 115,000 115,000 Link Geometry: Elevation Angle (degrees) 30.0 30.0 Rx E/S Range to Satellite (km) 38,612 38,612 Downlink: Carrier Frequency (MHz) 20,000 20,000 Saturated EIRP (dBW) 64.5 64.5 EIRP per Carrier towards Rx E/S (dBW) 61.5 61.5 Atmospheric and Other Losses (dB) 0.6 5.0 99.7% availability Free Space Loss (dB) 210.2 210.2 Rx E/S Antenna Diameter (m) 0.65 0.65 Antenna Mis-pointing Error (dB) 0.50 0.50 Rx E/S Antenna Gain (dB) 40.5 40.5 Rx E/S G/T (dB/K) 17.5 15.0 System (LNA+Sky) Noise Temp. (K) 200 354 (Eb/No) - Thermal Downlink (dB) 15.5 8.7 (Eb/Io) - (Adjacent satellite interference) (dB) 16.0 16.0 (Eb/No+Io) - Total Actual (dB) 12.8 7.9 (Eb/No+Io) - Total Required (dB) 7.0 7.0 Excess Margin (dB) 5.8 0.9


Document Created: 2004-11-24 14:27:54
Document Modified: 2004-11-24 14:27:54
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