Attachment Schedule S document

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

IBFS_SATMOD2007052900075_570351

Table A-1: CDMA 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) 36.10 36.10 Carrier Information Reuse plan 4 4 Beam pitch (deg) 0.25 0.25 Number of beams 1 1 Number of CDMA carriers per beam 1 1 Number of traffic channels per CDMA carrier 1 1 CDMA carrier bandwidth (MHz) 1.25 1.25 Information rate (kbps) plus overhead 64 64 Pilot signal (dB below traffic channel) 3.75 3.75 Modulation QPSK QPSK FEC code rate 0.2 0.2 Required total C/N with margin (dB) -2.98 -2.98 Uplink Uplink frequency (GHz) 2.01 2.01 Uplink EIRP (not including pilot) (dBW) -7.55 -7.55 Uplink atmospheric loss (dB) 0.06 0.06 Fade + head loss (dB) 3 3 Uplink free space pathloss (dB) 190.12 190.12 Transponder G/T dBi/K 21.50 21.50 Polarization loss (dB) 0 0 Uplink C/N (dB) -2.37 -2.62 C/I inband ATC (dB) 100 100 C/I inter-beam (dB) 14.05 14.05 C/I self Interference (Intra-beam) 100 100 C/I adj-channel 33.91 33.91 Composite uplink C/I (dB) 14.01 14.01 Satellite Transponder C/I ATC affecting amplifier backoff(dB) -42.55 -42.55 Power control error (dB) 1 1 Per carrier output backoff (dB) 48.55 48.55 Expected C/IM in digital carrier bandwidth at satellite (dB) 19 19 Downlink Downlink frequency (GHz) 11 11 Satellite EIRP per carrier (dBW) 6.95 6.95 Downlink free space pathloss (dB) 204.69 204.69 Downlink atmospheric loss (dB) 0.09 0.09 Rain availability (%) 99.99 99.99 Downlink rain fade (dB) 2.2 2.2 Pointing + line losses (dB) 1 1 Earth station on-axis G/T (dBi/K) 31.36 34.46 Downlink C/N (dB) 6.89 10.00

C/I Crosspole Isolation (including rain depolarization) (dB) 25.29 25.29 Overall Performance Summary Computed uplink or system margin (dB) 0.00 0.01 Downlink margin (dB) 0.04 0.17 Table A-2: CDMA 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) -111.10 -111.10 Uplink elevation angle (degrees) 36.10 36.10 Carrier Information Reuse plan 4.00 4.00 Beam pitch (deg) 0.25 0.25 Number of beams 280.00 280.00 Number of CDMA carriers per beam 2.00 2.00 Number of traffic channels per CDMA carrier 129.00 135.00 CDMA carrier bandwidth (MHz) 1.25 1.25 Information rate (kbps) plus overhead 5.64 5.64 Voice activity factor 0.40 0.40 Number of voice channels per beam 645.00 675.00 Pilot signal (dB below traffic channel) 3.75 3.75 Modulation QPSK QPSK FEC code rate 0.20 0.20 Required total C/N with margin (dB) -2.98 -2.98 Uplink Uplink frequency (GHz) 2.01 2.01 Uplink EIRP (not including pilot) (dBW) -7.55 -7.55 Uplink atmospheric loss (dB) 0.06 0.06 Fade + head loss (dB) 9.00 9.00 Uplink free space pathloss (dB) 190.12 190.12 Transponder G/T dBi/K 21.50 21.50 Polarization loss (dB) 0.00 0.00 Uplink C/N (dB) 1.88 1.88 C/I inband ATC (dB) 100.00 100.00 C/I inter-beam (dB) 3.49 3.30 C/I self Interference (Intra-beam) 1.38 1.19 C/I adjacent-channel 23.35 23.15 Composite uplink C/I (dB) -0.72 -0.91 Satellite Transponder C/I ATC affecting amplifier backoff(dB) -42.55 -42.55 Power control error (dB) 1.00 1.00 Per carrier output backoff (dB) 56.82 56.99 Expected C/IM in digital carrier bandwidth at satellite 19.00 19.00 (dB) Downlink Downlink frequency (GHz) 11.00 11.00 Satellite EIRP per carrier (dBW) -1.32 -1.49 Downlink free space pathloss (dB) 204.69 204.69 Downlink atmospheric loss (dB) 0.09 0.09 Rain availability (%) 99.99 99.99 Downlink rain fade (dB) 2.20 2.20 Pointing + line losses (dB) 1.00 1.00 Earth station on-axis G/T (dBi/K) 31.36 34.46

Downlink C/N (dB) 9.17 12.11 C/I Crosspole Isolation (including rain depole) (dB) 25.29 25.29 Overall Performance Summary Computed uplink or system margin (dB) 0.05 0.06 Downlink margin (dB) 0.73 1.55


Document Created: 2007-05-30 13:27:40
Document Modified: 2007-05-30 13:27:40
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