Attachment Schedule S document

This document pretains to SAT-MOD-20070529-00075 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2007052900075_570357

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 pattern 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 176 176 Information burst rate (kbps) plus overhead 35.10 35.10 Modulation QPSK QPSK FEC code rate 0.75 0.75 Transmission rate (kbps) 46.80 46.80 Noise bandwidth (kHz) 23.40 23.40 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 C/I adj-channel 22.00 22.00 C/I Crosspole Isolation (including rain depole) (dB) 23.01 23.01 Composite uplink C/I (dB) 19.47 19.47 Satellite Transponder Power control error (dB)-per user 0.50 0.50 Power control error (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 12.50 12.50 (dB) Downlink Downlink frequency (GHz) 2.19 2.19 Satellite EIRP per carrier (dBW) 46.43 46.43 Downlink free space pathloss (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 C/I inter beam (dB) 15.00 15.00 Overall Performance Summary Computed uplink or system margin (dB) 0.08 0.08

Downlink margin (dB) 0.11 0.12 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 12.00 12.00 Beam pitch (deg) 0.25 0.25 Number of beams 280.00 280.00 Number of carriers per beam 1.00 1.00 Information burst rate (Kbps) 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 pathloss (dB) 206.05 206.05 Transponder G/T dBi/K 15.06 15.06 Uplink C/N (dB) 32.36 35.56 C/I adj-channel 22.00 22.00 C/I Crosspole Isolation (including rain depole) (dB) 23.01 23.01 Composite uplink C/I (dB) 19.47 19.47 Satellite Transponder Power control error (dB)-per user 0.50 0.50 Power control error (dB)-per uplink 1.00 1.00 Per carrier output backoff (dB) 27.47 27.47 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) 72.11 72.11 Downlink free space pathloss (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) 22.09 22.09 C/I inter beam (dB) 15.00 15.00 Overall Performance Summary Computed uplink or system margin (dB) 0.16 0.18

Downlink margin (dB) 2.20 2.33


Document Created: 2007-05-30 13:32:00
Document Modified: 2007-05-30 13:32:00
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