Attachment Schedule S document

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

IBFS_SATMOD2007052900075_570358

Table A-13: Next Generation GMR-2 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 Information burst rate (Kbps) plus overhead 361.11 361.11 Modulation 16-QAM 16-QAM FEC code rate 0.67 0.67 Transmission rate (kbps) 541.67 541.67 Allocated bandwidth per carrier (kHz) 200.00 200.00 Required total C/N with margin (dB) 9.58 9.58 Uplink Uplink frequency (GHz) 13.13 13.13 Uplink EIRP (on-axis) (dBW) 47.46 47.65 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) 206.22 206.22 Transponder G/T dBi/K 15.22 15.22 Uplink C/N (dB) 30.27 30.46 C/I adj-channel 22.00 22.00 C/I Crosspole Isolation (including rain depole) (dB) 23.13 23.13 Composite uplink C/I (dB) 19.52 19.52 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) 31.94 34.95 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) 66.84 66.84 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) 19.20 19.20 C/I inter beam (dB) 15.26 15.26 Overall Performance Summary Computed uplink or system margin (dB) 0.00 0.00 Downlink margin (dB) 0.00 0.00 Table A-14: Next Generation GMR-2 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 2.48 2.48 Time slots per burst 32.00 32.00 Information Rate (kbps) per slot 5.64 5.64 Activity factor 0.40 0.40 Number of simultaneous voice channels per beam 198.40 198.40 Information burst rate (kbps) plus overhead 180.56 180.56 Modulation QPSK QPSK FEC code rate 0.67 0.67 Transmission rate (kbps) per burst 270.83 270.83 Noise bandwdith (kHz) 135.42 135.42 Allocated bandwidth per Carrier (kHz) 200.00 200.00 Required total C/N with margin (dB) 3.72 3.72 Uplink Uplink frequency (GHz) 12.88 12.88 Uplink EIRP (on-axis) (dBW) 47.98 51.18 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) 30.80 34.00 C/I adj-channel (dB) 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) 31.42 31.42 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) 52.59 52.59 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) 4.95 4.95 C/I inter beam (dB) 15.26 15.26 Overall Performance Summary Computed uplink or system margin (dB) 0.06 0.07 Downlink margin (dB) 0.08 0.09


Document Created: 2007-05-30 13:32:42
Document Modified: 2007-05-30 13:32:42
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