Attachment Link Budget 2

This document pretains to SES-AMD-20100416-00448 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMD2010041600448_810960

ANTOD 202 TRANSMISSION PLAN FORM FORM-1 TELECOMMUNICATION LINK BUDGET Customer Name: C03A: USA,Hawaii: Honolulu (13 s(8PSK, TPC FEC=0.75, RS=No) - From USA,Hawaii: Honolulu to SOLOMON ISLANDS: Honiara A. Satellite Characteristics Parameter 1. Satellite name Apstar-VI 2. Orbit location (deg.E) 134.00 3. Transponder number C03A 4. Transponder gain step 35 4.1 Transponder Attenuation (dB) 14.5 5. Saturation EIRPS (dBw) 32.75 6. SFD (dBw/m^2) -84.28 7. G/T (dB/k) -4.38 8. Output backoff (dB) 2.50 9. Input backoff (dB) 5.50 10. Uplink frequency (MHz) 5945.00 11. Downlink frequency (MHz) 3720.00 12. Transponder bandwidth (MHz) 36.00 B. Earth Station Characteristics 1. Transmit Station Information a. Antenna diameter (m) 13.00 b. Earth Station Location USA,Hawaii: Honolulu c. Longitude (deg.E) -157.86 e. Latitude (deg.N) 21.31 f . Distance to satellite (km) 40395.59 g. Antenna elevation (deg) 11.80 h. Antenna azimuth (deg) 261.75 i . Feed loss (dB) 0.20 j . HPA to Feed waveguide loss (dB) 1.00 k. HPA type (KHPA or TWTA) TWTA l . HPA required output power(dBw) 18.93 l' HPA required output power (Watts) 78.18 l'' HPA required output power (Watts) (Including 1dB Backoff) 98.42 m. HPA Max output power (dBw) 30.00 m'' Margin of HPA Output power(dB) 11.07

n. Antenna efficiency (%) 60.00 o. Antenna Gain (dB) 55.94 p. Tracking capability Manual q. Antenna type Fixed 2. Receive a. Antenna diameter (meter) 4.50 b. E.S.Location SOLOMON ISLANDS: Honiara c. Longitude (deg. E) 159.95 d. Latitude (deg. N) -9.43 e. Distance to satellite (km) 36624.47 f. Antenna elevation (deg) 57.91 g. Antenna azimuth (deg) 288.49 h. Antenna efficiency (%) 65.00 i. Antenna Gain (dB) 43.00 j. Receive system noise temp. (dBK) 19.48 k. System G/T (dB/k) 23.52 l. Tracking capability Manual m. Antenna type Fixed C. Misc Losses 1. Uplink rain Attn (dB) ITU P.618-8 2.87 2. Downlink rain Attn (dB) ITU P.618-8 0.37 3. Uplink path loss (dB) 200.06 4. Downlink path loss (dB) 195.14 D. Carrier Characteristics 1. Carrier type Digital 2. Modulation technique 8PSK 3. Carrier info. rate (kbps) 29000.00 4. Reed Solomon No 4.1 FEC Coding TPC 5. FEC code rate 0.750 6. Carrier transmission rate (kbps) 38666.67 7. Overhead(%) 0.0% 8. Carrier noise bandwidth (kHz) 15466.67 9. Rolloff Factor (%) 40% 10. Carrier allocated bandwidth(kHz) 18044.44 11. Threshold Eb/N0 (dB) 6.80 12. Bit Error Rate Required 1x10e-8

E. Link budget 1. Uplink C/T a. Uplink EIRPE (dBw) 73.67 b. Uplink pass loss (dB) 200.06 c. Antenna point error (dB) 0.13 d. Gain of 1m^2 antenna (dB/m^2) 36.93 e. Carrier PFD at satellite (dBw/m^2) -92.45 f. Transponder SFD (dBw/m^2) -84.28 g. Carrier input backoff (dB) 8.17 h. Satellite G/T (dB/k) -4.38 i. Uplink C/T (dBw/k) -133.76 2. Downlink C/T a. Saturation EIRPS (dBw) 32.75 b. Carrier output backoff (dB) 5.17 d. Carrier downlink EIRPS (dBw) 27.58 e. Downlink path loss (dB) 195.14 f. Receive antenna point error (dB) 0.13 g. Receive System G/T (dB/k) 23.52 h. Downlink C/T (dBw) -144.54 3. C/T co-ch. interference (dBw/k) -130.71 4. C/T IM interference (dBw/k) -125.71 5. C/T adj. sat. interference ( dBw/k) -127.65 6. C/T and C/N total a. C/T total (dBw/k) -145.18 b. Bolzmann's constant (dBw/k-Hz) -228.60 c. Receive noise bandwidth (dB-Hz) 71.89 d. C/N total (dB) 11.53 e. Threshold Eb/N0 (dB) 6.80 f. Threshold C/N (dB) 9.53 g. Link margin (dB) 2.00 F. Off-axis emission EIRP density at 30 1. Transmit antenna diameter (m) 13.00 2. Carrier EIRPE (dBw) 73.67

3. Transmit antenna gain (dB) 55.94 4. Power at antenna feed (dBw) 17.93 5. Sidelobe envelope formula 29-25*log(q) 6. Off-axis antenna gain (dB) 17.07 7. Off-axis EIRP density(dBw/4kHz) -0.87 8. Off-axis EIRP criteria (dBw/4kHz) 32-25*log(q) 9. Off-axis EIRP constraint (dBw/4kHz) 20.07 10. Margin (dB) 20.94 G. Summary 1. Occupied transponder power (dBw) 27.58 2. Percentage occupied transponder power(%) 54.05 3. Percentage occupied bandwidth(%) 50.12 4. Power equivalent bandwidth usage (kHz) 19457.59 5. Occupied bandwidth (kHz) 18044.44 6. Link margin (dB) 2.00 7. Total percentage occupied transponder power (%) 8. Total percentage occupied bandwidth (%) 9. Total power equivalent bandwidth usage (kHz) 10. Total oocupied bandwidth (kHz)

3m) - SOLOMON ISLANDS: Honia 10500kbps(8PSK, TPC FEC=0.87 SOLOMON ISLANDS: Honiara USA,Hawaii: Honolulu Parameter Apstar-VI 134.00 C03A 35 14.5 37.51 -78.30 -10.36 2.50 5.50 5945.00 3720.00 36.00 4.50 SOLOMON ISLANDS: Honiara 159.95 -9.43 36624.47 57.91 288.49 0.20 0.30 TWTA 19.68 92.85 116.90 20.00 0.32

60.00 46.73 Manual Fixed 13.00 USA,Hawaii: Honolulu -157.86 21.31 40395.59 11.80 261.75 65.00 52.22 21.42 30.80 Manual Fixed 2.10 0.64 199.21 195.99 Digital 8PSK 10500.00 No TPC 0.875 12000.00 0.0% 4800.00 40% 5600.00 7.20 1x10e-8

65.91 199.21 0.13 36.93 -98.60 -78.30 20.30 -10.36 -145.89 37.51 17.30 20.21 195.99 0.13 30.80 -145.75 -135.79 -131.79 -131.04 -149.19 -228.60 66.81 12.60 7.20 10.60 2.00 4.50 65.91

46.73 19.38 29-25*log(q) 17.07 5.66 32-25*log(q) 20.07 14.41 20.21 3.31 15.56 1192.52 5600.00 2.00 57.36 65.68 20650.10 23644.44


Document Created: 2010-03-16 16:08:17
Document Modified: 2010-03-16 16:08:17
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