Attachment Schedule S document

This document pretains to SES-AMD-20070309-00336 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMD2007030900336_557790

LB2 – LINK BUDGETS – GMR1R Table A-5: Next Generation GMR-1 Return Link Voice Budget Satellite and Earth Station Information Downlink name Las Vegas, (6.3 m) Las Vegas, (9.3 m) Satellite longitude (degrees) (- = West) -111.1 -111.1 Uplink elevation angle (degrees) 36.1 36.1 Carrier Information Frequency reuse pattern 12.0 12.0 Beam pitch (deg) 0.25 0.25 Number of beams 280.0 280.0 Number of carriers per beam 26.7 26.7 Traffic channels per carrier 8.0 8.0 Information rate (kbps) plus overhead 4.4 4.4 Number of simultaneous voice channels per beam 213.3 213.3 Information burst rate (kbps) 35.1 35.1 Modulation QPSK QPSK FEC code rate 0.75 0.75 Transmission rate (kbps) 46.8 46.8 Allocated bandwidth per carrier (kHz) 31.25 31.25 Required total C/N with margin (dB) 5.5 5.5 Uplink Uplink frequency (GHz) 2.0 2.0 Uplink EIRP (on-axis) (dBW) 0.0 0.0 Uplink atmospheric loss (dB) 0.1 0.1 Uplink free space loss (dB) 190.1 190.1 Fade + head loss(dB) 9.0 9.0 Transponder G/T dBi/K 21.5 21.5 Polarization loss (dB) or dual polarization gain (-) 0.0 0.0 Uplink C/N (dB) 7.2 7.2 C/I inband ATC (dB) 100.0 100.0 C/I inter-beam (dB) 14.8 14.8 C/I adj-channel (dB) 16.0 16.0 Composite uplink C/I (dB) 12.3 12.3 Satellite Transponder C/I ATC affecting amplifier backoff(dB) -35.0 -35.0 Power control tolerance (dB) 1.0 1.0 Per carrier output backoff (dB) 45.3 45.3 Expected C/IM in digital carrier bandwidth at satellite (dB) 19.0 19.0 Downlink Downlink frequency (GHz) 11.0 11.0 Satellite EIRP per carrier (dBW) 9.2 9.2 Downlink free space pathloss (dB) 204.7 204.7 Downlink atmospheric loss (dB) 0.1 0.1 Rain availability (%) 99.99 99.99

Downlink rain fade (dB) 2.2 2.2 Pointing + line losses (dB) 1.0 1.0 Earth station on-axis G/T (dBi/K) 31.4 34.5 Downlink C/N (dB) 17.5 20.6 Expected composite downlink C/I (dB) 28.9 28.9 Overall Performance Summary Computed uplink or system margin (dB) 0.0 0.2 Downlink margin (dB) 0.6 3.7 Table A-6: Next Generation GMR-1 Return Link Data Budget Satellite and Earth Station Information Downlink name Las Vegas, (6.3 m) Las Vegas, (9.3 m) Satellite longitude (degrees) (- = West) -111.1 -111.1 Uplink elevation angle (degrees) 36.1 36.1 Carrier Information Frequency reuse pattern 12.0 12.0 Beam pitch (deg) 0.3 0.3 Number of carriers per beam 1.0 1.0 Information burst rate (kbps) 156.0 156.0 Modulation QPSK QPSK FEC code rate 0.67 0.67 Transmission rate (kbps) 234.0 234.0 Allocated bandwidth per carrier (kHz) 156.3 156.3 Required total C/N with margin (dB) 4.3 4.3 Uplink Uplink frequency (GHz) 2.0 2.0 Uplink EIRP (on-axis) (dBW) 0.0 0.0 Uplink atmospheric loss (dB) 0.1 0.1 Uplink free space loss (dB) 190.1 190.1 Fade + head loss(dB) 3.0 3.0 Transponder G/T dBi/K 21.5 21.5 Polarization loss (dB) or dual polarization gain (-) 0.0 0.0 Uplink C/N (dB) 6.2 6.2 C/I inband ATC (dB) 100.0 100.0 C/I inter-beam (dB) 14.8 14.8 C/I adj-channel (dB) 16.0 16.0 Composite uplink C/I (dB) 12.3 12.3 Satellite Transponder C/I ATC affecting amplifier backoff(dB) -35.0 -35.0 Power control tolerance (dB) 1.0 1.0 Per carrier output backoff (dB) 40.0 40.0 Expected C/IM in digital carrier bandwidth at satellite (dB) 19.0 19.0 Downlink Downlink frequency (GHz) 11.0 11.0 Satellite EIRP per carrier (dBW) 14.5 14.5

Downlink free space pathloss (dB) 204.7 204.7 Downlink atmospheric loss (dB) 0.1 0.1 Rain availability (%) 99.99 99.99 Downlink rain fade (dB) 2.2 2.2 Pointing + line losses (dB) 1.0 1.0 Earth station on-axis G/T (dBi/K) 31.4 34.5 Downlink C/N (dB) 15.8 18.9 Expected composite downlink C/I (dB) 28.9 28.9 Overall Performance Summary Computed uplink or system margin (dB) 0.4 0.6 Downlink margin (dB) 3.5 6.7


Document Created: 2007-03-27 16:55:41
Document Modified: 2007-03-27 16:55:41
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