Attachment Schedule S document

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

IBFS_SESAMD2007030900336_557795

LB7 – LINK BUDGETS GMR1F TABLE A-9: NEXT GENERATION GMR-1 FORWARD VOICE LINK BUDGET Satellite and Earth Station Information Uplink name Las Vegas, (6.3 m) Las Vegas, (9.3 m) Satellite longitude (degrees) (- = West) -111.10 -111.10 Downlink elevation angle (degrees) 36.10 36.10 Carrier Information Frequency reuse plan 12.00 12.00 Beam pitch (deg) 0.25 0.25 Number of beams 280.00 280.00 Number of carriers per beam 8.80 8.80 Traffic channels per carrier 8.00 8.00 Information rate (kbps) 4.39 4.39 Activity factor 0.40 0.40 Number of simultaneous voice channels per beam 176.00 176.00 Information burst rate (kKbps) plus overhead 35.10 35.10 Modulation QPSK QPSK FEC code rate 0.75 0.75 Transmission rate (kbps) 46.80 46.80 Allocated bandwidth per carrier (kHz) 31.25 31.25 Required total C/N with margin (dB) 4.76 4.76 Uplink Uplink frequency (GHz) 12.88 12.88 Uplink EIRP (on-axis) (dBW) 42.48 45.68 Uplink atmospheric loss (dB) 0.11 0.11 Rain availability (%) 99.99 99.99 Uplink rain fade (dB) 3.37 3.37 Uplink free space pathloss (dB) 206.05 206.05 Transponder G/T (dBi/K) 15.06 15.06 Uplink C/N (dB) 32.92 36.12 Composite uplink C/I (dB) 17.66 17.66 Satellite Transponder Power control tolerance (dB)-per user 0.50 0.50 Power control tolerance (dB)-per uplink 1.00 1.00 Per carrier output backoff (dB) 36.92 36.92 Expected C/IM in digital carrier bandwidth at satellite (dB) 12.50 12.50 Downlink Downlink frequency (GHz) 2.19 2.19 Satellite EIRP per carrier (dBW) 46.43 46.43 Downlink free space path loss (dB) 190.87 190.87 Downlink atmospheric loss (dB) 0.06 0.06 Average shadowing + fading (dB) 3.00 3.00 Earth station on-axis G/T (dBi/K) -28.00 -28.00 Polarization loss (dB) 3.00 3.00 Downlink C/N (dB) 6.41 6.41

Expected composite downlink C/I (dB) 15.00 15.00 Overall Performance Summary Computed uplink or system margin (dB) 0.00 0.01 Downlink margin (dB) 0.00 0.01 TABLE A-10: NEXT GENERATION GMR-1 FORWARD DATA LINK BUDGET Satellite and Earth Station Information Uplink name Las Vegas, (6.3 m) Las Vegas, (9.3 m) Satellite longitude (degrees) (- = West) -111.10 -111.10 Downlink elevation angle (degrees) 36.10 36.10 Carrier Information Frequency reuse plan 12.00 12.00 Beam pitch (deg) 0.25 0.25 Information burst rate (kKbps) plus overhead 623.99 623.99 Modulation 16-QAM 16-QAM FEC code rate 0.67 0.67 Transmission rate (kbps) 935.98 935.98 Allocated bandwidth per carrier (kHz) 312.50 312.50 Required total C/N with margin (dB) 9.58 9.58 Uplink Uplink frequency (GHz) 12.88 12.88 Uplink EIRP (on-axis) (dBW) 51.93 55.13 Uplink atmospheric loss (dB) 0.11 0.11 Rain availability (%) 99.99 99.99 Uplink rain fade (dB) 3.37 3.37 Uplink free space path loss (dB) 206.05 206.05 Transponder G/T (dBi/K) 15.06 15.06 Uplink C/N (dB) 32.36 35.56 Composite uplink C/I (dB) 17.66 17.66 Satellite Transponder Power control tolerance (dB)-per user 0.50 0.50 Power control tolerance (dB)-per uplink 1.00 1.00 Per carrier output backoff (dB) 28.97 29.27 Expected C/IM in digital carrier bandwidth at satellite (dB) 12.50 12.50 Downlink Downlink frequency (GHz) 2.19 2.19 Satellite EIRP per carrier (dBW) 73.61 73.31 Downlink free space path loss (dB) 190.87 190.87 Downlink atmospheric loss (dB) 0.06 0.06 Average fade and head loss (dB) 3.00 3.00 Earth station on-axis G/T (dBi/K) -28.00 -28.00 Polarization loss (dB) 3.00 3.00 Downlink C/N (dB) 23.59 23.29 Expected composite downlink C/I (dB) 15.00 15.00 Overall Performance Summary Computed uplink or system margin (dB) 0.05 0.07

Downlink margin (dB) 0.06 0.05


Document Created: 2007-03-27 16:59:13
Document Modified: 2007-03-27 16:59:13
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