Attachment comsearch freq

This document pretains to SES-LIC-20030501-00565 for License on a Satellite Earth Station filing.

IBFS_SESLIC2003050100565_316589

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for AMOCO PRODUCTION COMPANY DBA BP AMOCO NAKIKA, GM Satellite Earth Station PreparedBy: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 09, 2003

TABLE OF CONTENTS 5. CERTIFICATION 3 2. 4. 3. 1. CONCLUSIONS SUMMARY SUPPLEMENTAL EARTH STATION OF RESULTS SHOWING COORDINATION DATA 4 5 6 11 Frequency Coordination and Interference Analysis Report 05/09/2003 Page 2 of 11 =~- ,1;.-,.l,...j."C'~-- -

1. CONCLUSIONS An interference study considering all existing, proposed and prior coordinated microwave facilities within the coordination contours of the proposed earth station demonstrates that this site will operate satisfactorily with the common carrier microwave environment. Further, there will be no restrictions of its operation due to interference considerations. FrequencyCoordinationand InterferenceAnalysisReport 05/09/2003 Page 3 of 11

2. SUMMARY OF RESULTS No great circle interference cases were identified within the coordination contours during the interference study of the proposed earth station. There are no unresolved interference conflicts with this proposed earth station. Frequency Coordination and Interference Analysis Report 05/09/2003 Page 4 of 11

3. SUPPLEMENTAL SHOWING Pursuant to Part 25.203(c)of the FCC Rules and Regulations. the satellite earth station proposed in this application was coordinated by Comsearch using computer techniques and in accordance with Part 25 of the FCC Rules and Regulations. Coordination data for this earth station was sent to the below listed carriers with a letter dated 05/09/2003. Company AT&T COMM. OF THE SOUTH CENTRAL STATES BELLSOUTH TELECOMMUNICATIONS, INC. MCI NE1WORK SERVICES INC STRATOS OFFSHORE SERVICES COMPANY Frequency Coordinationand InterferenceAnalysisReport 05/09/2003 Page 5 of 11

4. EARTH STATION COORDINATION DATA This section presents the data pertinent to frequency coordination of the proposed earth station that was circulated to all carriers within its coordination contours. Frequency Coordinationand InterferenceAnalysisReport 05/09/2003 Page 6 of 11 i" ".! ~M

SATELLITE EARTH STATION FREQUERCY COORDINATION DATA 05/08/2003 Company AMOCO PRODUCTION COMPANY DBA BP AMOCO OWner code SOO048 Earth Station Name, State NAKIKA, GM Latitude (OMS) (HAD83) 28 31 15.9 N Longitude (OMS) (HAD83) 88 17 20.0 W Ground Elevation AMSL (Ft/m) 0.00 / 0.00 Antenna Centerline AGL (Ft/m) 98.43 / 30.00 Receive Antenna Type FCC32 Channel Master Type 243 4.0 GHz Gain (dBi) / Diameter (m) 38.0 / 2.4 3 dB / 15 dB Half Beamwidth 0.25 / 0.50 Transmit Antenna Type FCC32 Channel Master Type 243 6.0 GHz Gain (dBi) / Diameter (m) 42.0 / 2.4 3 dB / lS dB Half Beamwidth 0.40 / 0.80 Operating Mode TRANSMIT AND RECEIVE Modulation DIGITAL Emission / Receive Band (MHz) IM85G7D / 3700.0000 - 4200.0000 Emission / Transmit Band (MHz) lM8SG7D / 5925.0000 - 6425.0000 Available RF Power (dBW)/4 kHz) ~12.70 (dBW)/MHz) 11.30 EIRP (dBW)/4 kHz) 29.30 (dBW)/MHz) 53.30 Max permissible Interference Power 4.0 GHz, 20' (dBW/1 MHz) -156.0 4.0 GHz, 0.0100' (dBW/1 MHz) -14,6.0 6.0 GHz, 20' (dBW/4 kHz) -154.0 6.0 GHz, 0.0025' (dBW/4 kHz) -131.0 Range of Satellite Arc (GeostatiOnary) Degrees Longi tude 60.0 W /143.0 if Azimuth Range (Min/Max) 131.6 / 251.3 Corresponding Elevation Angles 44.5 / 22.5 Radio Climate B Rain Zone 1 Max Great Circle Coordination Distance (Mi/Km) 4.0 GHz 327.4 I 527.0 6.0 GHz 118.2 I 1.90.3 Precipitation Scatter Contour Radius (Mi/Km) 4.0 GHz 356.5 I 573.8 6.0 GHz 62.1 I 100.0 Horizon is less than 0.2 degrees at all azimuths FrequencyCoordination and Interference Analysis Report 05/09/2003 Page 7 of 11 "1.& """,,

~l.. of Earth Station Coordination Value. 05/08/2003 Earth Station Name NAKIKA OM Owner AMOCOPRODUcrIONCOMPANY DBA BP AMOCO Latitude (DMS) (HAD83) 28 31 15.'9 N Longitude (DMS) (HAD83) 88 17 20.0 W Ground Elevation (Ft/m) 0.00 1 0.00 AMSL Antenna Centerline (Ft/m) 98.43 1 30.00 AGL Antenna Model Channel Master 2.4 Meter Objectives: Receive -156.0 (dBW 11 MHz) Transmit -154.0 (dBW 14 kHz) TX Power -12.7 (dBW/4 kHz) Azimuth Horizon Antenna 4.0 GHz 6.0 GHz (Deg) Elevation Disc. Antenna Coordination Antenna Coordination Angle Angle Gain Distance Gain Distance (Deg) (Deg) (dBi) (KIn) (dBi) (Km) 0 0.00 107. ..21 -14-00 412.2 -10. 00 1Sl.1 5 0..00 1.11. .78 -10.00 412.2 -10. 00 151.1 10 0.00 111. .94 -lct.OO 412.2 -10. 00 151.1 15 0.00 108, .61 -lQ.OO 412.2 -10. 00 151.1 20 0.00 10S. ;21 -10.00 412.2 -10. 00 151.1 25 0.00 101. .15 -10.00 412.2 -10. 00 151.1 30 0.00. ~8. .23 -l~.OO 412.2 -10. 00 151.1 35 0.00 94. ..69 -lQ..OO 412.2 -10. 00 151.1 40 0.00 91. .13 -1,.00 412.2 -10. .00 151.1 45 0.00 87. ...56 -1$.00 .~2..2 -10. 00 151.1 50 0.00 84. .01 -1+.00 4-U.2 -10. 00 151.1 55 0.00 80. .41 -1'~00 .12..2 -10. 00 151.1 60 0.00 76. .98 -1,.00 "12..2 -10. 00 151.1 6'5 Q.OO 73. .53 -10.00 , 4-12.2 -10. 00 151.1 70 0.00 70. .16 -10.00 .12.2 -~O.. 00 1:51.1. 7S 0..00 66. .87 -lQ.OO 412.2 ",10:. 00 15];.1 80 0.00 63. .69 -10.00 "12.2 -10. 00 151..1 85 0.00 60 .64 -1,.00 412.2 -10. 00 151.1 90 0.00, 57 .75 -It.OO 4-12.2 -10.. 00 151.1 95 0.00 55 .06 -1..00 412.2 .1. 0 .00 1Sl.1 1.00 0.00 52 .58 -1..00 412.2 -10. .00 151.1 105 0.00 50 .36 -1..00 412.2 .10. .00 151.1 110 0.00 48 .45 -1..00 412.2 -10. ,00 151.1 115 0.00 46 .87 -t.17 415.0 -,.. .77 152.1 120 0.00 45 .67 -t.4' "18.5 -9. ,4.9 153.2 125 0.00 44 .88 -'.30 .20..9 -9. .30 154.0 130 0.00 4. .52 -t.21 "22.0 -9. .21 154.4 1.JS 0.00 44 .SO -'.23 .21.8 -9. ,23 154.3 140 0.00 4;5 .12 -..36 .20.2 -9. .36 153.8 145 0.00 4;6 .07 -'.58 411.3 -9. ,58 152.8 150 0.00 4;7 .41 -'.90 4-13.. -9. ,90 151.5 155 0.00 49 .11 -10.00 412.2 -10. ,00 151.1 160 0.00 51 .15 -10.00 412.2 -10. .00 151.1 165 0.00 53 .39 -10.00: 412.2 -~G, .00 151.1 170 0.00 55 .19 -10.00 412.2 -10, .00 151.1 175 0.00 56 .33 -10.00 412.2 -10. .00 151.1 180 0.00 56 .72 -10.00 412.2 "10, .00 151.1 Frequency Coordination and Interference Analysis Report 05/09/2003 Page 8 of 11

Table of Earth Station Coordination Values 05/08/2003 Earth Station Name NAKlKA GM Owner AMOCOPRODUc-fION COMPANY DBA BP AMOCO Latitude (DMS) (NAD83) 28 31 15.9 N Longitude (DMS) (NAD83) 88 17 20.0 W Ground Elevation (Ft/m) 0.00 / 0.00 AMSL Antenna Centerline (Ft/m) 98.43 / 30.00 AGL Antenna Model Channel Master 2.4 Meter Objectives: Receive -156.0 (dBW /1 MHz) Transmit -154.0 (dBW /4 kHz) TX Power -12.7 (dBW/4 kHz) Azimuth Horizon Antenna 4.0 GHz 6.0 GHz (Deg) Elevation Disc. Antenna Coordination Antenna Coordination Angle Angle Gain Distance Gain Distance (Deg) (Deg) (dBi) (KIn) (dBi) (b) 185 0.00 56. 33 -10.00 412.2 -10.00 151.1 1.90 0.00 55. 20 -10.00 412.2 -10.00 151.1 1.95 0.00 53. 39 -10.00 412.2 -10.00 1.51.1. 200 0.00 51. 02 -10.00 412.2 -10.00 1.51.1. 205 0.00 48. 19 -10.00 412.2 -10.00 151.1 , 210 0.00 45. 01 -'..33 420.5 -.9.33 153.9 21.5 0.00 41. 54 -8.46 431.7 -8..6 157.7 220 O~Oft 37. 85 -1.45 445.0 -7.45 162.1 225 0..00 34. 08 -S.31 460.6 -6.31 167.. 230 0.00 30. 59 -$.14 476.5 -5.14 173.0 235 0.00 27. 52 -).99 493.3 -3.99 178.8 240 0.00 25. 03 -a.96 508.9 -2.96 184.1 245 0.00 23. 30 -2.18 521.0 -2.18 188.2 250 0.00 22. 51 -1,.81 527.0 -1.81 190.3 255 O.OfJ 22. 75 -1.93 525.1 -1.93 1.89.6 260 0.00 24. 01 -2.51 516.0 -2.51 186.5 265 0.00 26. 12 -1.42 501.9 -3.42 1.81.7 270 fJ.OO 28. .90 -4.52 485.5 -4.52 176.1 275 0.00 32. 19 -5.69 468..7 -5.69 170.4 280 0.00 35. 83 -6.86 453.1 -6.86 164.9 285 0.00 39. 73 -7.98 438.0 -7.t8 159.8 290 0.00 43. 83 -'.04 42..2 -9.0. 155.1 295 0.00 48. 06 -10.00 412.2 -10.00 lSl.1 300 0.00 52. 40 -10.00 412.2 -10.00 151.1. 305 0.00 56. 81 -10.00 .12.2 -10.00 151.1 310 0.00 61. 29 -10.00 .12.2 -10.00 1.51.1 315 0.00 65. 81 -10.00 .12.2 -10.00 151.1 320 0.00 70. 36 -10.00 .U.2 -10.00 151.1 325 0.00 74. 94 -16.00 .12.2 -10.00 151.1 330 0.00 79. 54 -10.00 .12.2 -10.00 151.1 335 0.00 84. 16 -10.00 .12.2 -10.00 151.1 340 0.00 88. 77 ..10.00 .12.2 -10.00 151.1 345 0.00 93. 39 -1'.00 412.2 -10.00 151.1 350 0..00 98. 01 -1,.00 .12.2 -10.&0 151.1 355 0.00 102. 62 -10.00 .12.2 -10..00 151.1 Frequency Coordination and Interference Analysis Report 05/09/2003 Page 9 of 11

~III Aun... ~"'~J SQltI c.dI Al8b8m8 G801gi1 ppi ~ . ~ " i ..~JA .. ,r FIojda \ ~ ~<-~~ Legend: Scale: 1:10,000,000 Great Circle: 6.1 GHz 4.0 GHz COM SEA RCHe 19700 Janelia Farm Boulevard PrecipitationScatter: 6.1 GHz Ashburn, VA 20147 4.0 GHz Frequency Coordination and Interference Analysis Report 05/09/2003 Page 10 of 11 ~-~

5. CERTIFICATION I HEREBY CERTIFY T HAT I AM THE T ECHNICALLY QUALIFIED PERSON RESPONSIBLE FOR THE PREPARATION OF THE FREQUENCY COORDINATION DATA CONTAINED IN THIS APPLICATION, THAT I AM FAMILIAR WITH PARTS 101 AND 25 OF THE FCC RULES AND REGULATIONS, THAT I HAVE EITHER PREPARED OR REVIEWED THE FREQUENCY COORDINATION DATA SUBMITTED WITH THIS APPLICATION, AND THAT IT IS COMPLETE AND CORRECT TO THE BEST OF MY KNOWLEDGE AND BELIEF. BY: ,~;:k .~~::~=::::~ - GARY K. EDWARDS SENIOR MANAGER COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: May 09.2003 Frequency Coordination and Interference Analysis Report 05/09/2003 Page 11 of 11


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