Attachment Frequency Coordinati

This document pretains to SES-STA-20140107-00008 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2014010700008_1032079

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Anadarko Petroleum Corporation Lucius Spar, Gulf of Mexico (Oil Platform) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 December 17, 2013

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................ 3 2. SUMMARY OF RESULTS ............................................................................................................................ 4 3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5 4. EARTH STATION COORDINATION DATA .................................................................................................. 6 5. CERTIFICATION ......................................................................................................................................... 10 Frequency Coordination and Interference Analysis Report 12/17/2013 Page 2 of 10

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. Frequency Coordination and Interference Analysis Report 12/17/2013 Page 3 of 10

2. SUMMARY OF RESULTS A number of great circle interference cases were identified during the interference study of the proposed earth station. Each of the cases, which exceeded the interference objective on a line-of-sight basis, was profiled and the propagation losses estimated using NBS TN101 (Revised) techniques. The losses were found to be sufficient to reduce the signal levels to acceptable magnitudes in every case. The following companies reported potential great circle interference conflicts that did not meet the objectives on a line-of-sight basis. When over-the-horizon losses are considered on the interfering paths, sufficient blockage exists to negate harmful interference from occurring with the proposed transmit-receive earth station. Company None No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 12/17/2013 Page 4 of 10

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. Expedited coordination data for this earth station was faxed and sent to the below listed carriers with a letter dated November 22, 2013. An expedited revised coordination notice was faxed and sent on December 13, 2013. Company Comsearch Frequency Coordination and Interference Analysis Report 12/17/2013 Page 5 of 10

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 Coordination and Interference Analysis Report 12/17/2013 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 12/17/2013 Job Number: 131213COMSJC10 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code S04815 Licensee Name Anadarko Petroleum Corporation Site Information LUCIUS SPAR, GULF of MEXICO Venue Name Oil Platform Latitude (NAD 83) 26° 7' 54.8" N Longitude (NAD 83) 92° 2' 25.1" W Climate Zone B Rain Zone 1 Ground Elevation (AMSL) 0.0 m / 0.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 32° W to 139° West Longitude Azimuth Range 104.2° to 247.6° Corresponding Elevation Angles 18.4° / 30.3° Antenna Centerline (AGL) 33.53 m / 110.0 ft Antenna Information Receive Transmit Manufacturer Sea Tel Sea Tel Model 9797 9797 Gain / Diameter 38.5 dBi / 2.4 m 41.7 dBi / 2.4 m 3-dB / 15-dB Beamwidth 2.04° / 3.80° 1.40° / 2.64° Max Available RF Power (dBW/4 kHz) -22.8 (dBW/MHz) 1.2 Maximum EIRP (dBW/4 kHz) 18.9 (dBW/MHz) 42.9 Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Frequency Information Receive 4.0 GHz Transmit 6.1 GHz Emission / Frequency Range (MHz) 2M29G7W - 7M66G7W / 3700.0 - 4200.0 2M29G7W - 7M66G7W / 5925.0 - 6425.0 Max Great Circle Coordination Distance 562.8 km / 349.7 mi 152.3 km / 94.6 mi Precipitation Scatter Contour Radius 585.0 km / 363.4 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 12/17/2013 Page 7 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values LUCIUS SPAR, GM Licensee Name Anadarko Petroleum Corporation Latitude (NAD 83) 26° 7' 54.8" N Longitude (NAD 83) 92° 2' 25.1" W Ground Elevation (AMSL) 0.0 m / 0.0 ft Antenna Centerline (AGL) 33.53 m / 110.0 ft Antenna Model Sea Tel 9797 Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -22.8 (dBW/4 kHz) Receive 4.0 GHz Transmit 6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 103.51 -10.00 412.20 -10.00 117.35 5 0.00 98.77 -10.00 412.20 -10.00 117.35 10 0.00 94.03 -10.00 412.20 -10.00 117.35 15 0.00 89.29 -10.00 412.20 -10.00 117.35 20 0.00 84.54 -10.00 412.20 -10.00 117.35 25 0.00 79.80 -10.00 412.20 -10.00 117.35 30 0.00 75.07 -10.00 412.20 -10.00 117.35 35 0.00 70.35 -10.00 412.20 -10.00 117.35 40 0.00 65.65 -10.00 412.20 -10.00 117.35 45 0.00 60.97 -10.00 412.20 -10.00 117.35 50 0.00 56.33 -10.00 412.20 -10.00 117.35 55 0.00 51.72 -10.00 412.20 -10.00 117.35 60 0.00 47.17 -9.84 414.16 -9.84 117.77 65 0.00 42.70 -8.76 427.87 -8.76 120.69 70 0.00 38.33 -7.59 443.25 -7.59 124.06 75 0.00 34.11 -6.32 460.52 -6.32 127.94 80 0.00 30.09 -4.96 479.17 -4.96 132.37 85 0.00 26.37 -3.53 500.33 -3.53 137.33 90 0.00 23.11 -2.09 522.49 -2.09 142.61 95 0.00 20.51 -0.80 543.28 -0.80 147.64 100 0.00 18.85 0.11 558.40 0.11 151.22 105 0.00 18.40 0.38 562.83 0.38 152.32 110 0.00 19.24 -0.10 554.76 -0.10 150.33 115 0.00 21.21 -1.16 537.38 -1.16 146.21 120 0.00 24.03 -2.52 515.81 -2.52 141.01 125 0.00 27.45 -3.97 493.79 -3.97 135.79 130 0.00 31.27 -5.38 473.15 -5.38 130.98 135 0.00 35.34 -6.71 455.20 -6.71 126.74 140 0.00 39.35 -7.87 439.47 -7.87 123.23 145 0.00 43.20 -8.89 426.24 -8.89 120.34 150 0.00 46.85 -9.77 415.09 -9.77 117.96 155 0.00 50.23 -10.00 412.20 -10.00 117.35 160 0.00 53.25 -10.00 412.20 -10.00 117.35 165 0.00 55.81 -10.00 412.20 -10.00 117.35 170 0.00 57.78 -10.00 412.20 -10.00 117.35 175 0.00 59.03 -10.00 412.20 -10.00 117.35 180 0.00 59.46 -10.00 412.20 -10.00 117.35 185 0.00 59.03 -10.00 412.20 -10.00 117.35 Frequency Coordination and Interference Analysis Report 12/17/2013 Page 8 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values LUCIUS SPAR, GM Licensee Name Anadarko Petroleum Corporation Latitude (NAD 83) 26° 7' 54.8" N Longitude (NAD 83) 92° 2' 25.1" W Ground Elevation (AMSL) 0.0 m / 0.0 ft Antenna Centerline (AGL) 33.53 m / 110.0 ft Antenna Model Sea Tel 9797 Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -22.8 (dBW/4 kHz) Receive 4.0 GHz Transmit 6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 57.78 -10.00 412.20 -10.00 117.35 195 0.00 55.81 -10.00 412.20 -10.00 117.35 200 0.00 53.25 -10.00 412.20 -10.00 117.35 205 0.00 50.23 -10.00 412.20 -10.00 117.35 210 0.00 46.85 -9.77 415.09 -9.77 117.96 215 0.00 43.35 -8.93 425.76 -8.93 120.24 220 0.00 40.10 -8.08 436.78 -8.08 122.63 225 0.00 37.16 -7.25 447.80 -7.25 125.07 230 0.00 34.62 -6.48 458.27 -6.48 127.43 235 0.00 32.58 -5.83 466.83 -5.83 129.52 240 0.00 31.15 -5.33 473.79 -5.33 131.13 245 0.00 30.39 -5.07 477.62 -5.07 132.01 250 0.00 30.37 -5.06 477.73 -5.06 132.04 255 0.00 31.08 -5.31 474.09 -5.31 131.20 260 0.00 32.49 -5.79 467.29 -5.79 129.63 265 0.00 34.49 -6.44 458.83 -6.44 127.56 270 0.00 37.00 -7.21 448.41 -7.21 125.21 275 0.00 39.92 -8.03 437.41 -8.03 122.77 280 0.00 43.16 -8.88 426.37 -8.88 120.37 285 0.00 46.66 -9.72 415.65 -9.72 118.08 290 0.00 50.35 -10.00 412.20 -10.00 117.35 295 0.00 54.20 -10.00 412.20 -10.00 117.35 300 0.00 58.17 -10.00 412.20 -10.00 117.35 305 0.00 62.24 -10.00 412.20 -10.00 117.35 310 0.00 66.38 -10.00 412.20 -10.00 117.35 315 0.00 70.58 -10.00 412.20 -10.00 117.35 320 0.00 74.83 -10.00 412.20 -10.00 117.35 325 0.00 79.11 -10.00 412.20 -10.00 117.35 330 0.00 83.41 -10.00 412.20 -10.00 117.35 335 0.00 87.72 -10.00 412.20 -10.00 117.35 340 0.00 92.04 -10.00 412.20 -10.00 117.35 345 0.00 96.35 -10.00 412.20 -10.00 117.35 350 0.00 100.65 -10.00 412.20 -10.00 117.35 355 0.00 104.93 -10.00 412.20 -10.00 117.35 Frequency Coordination and Interference Analysis Report 12/17/2013 Page 9 of 10

5. CERTIFICATION I HEREBY CERTIFY THAT I AM THE TECHNICALLY 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. Jeffrey E. Cowles Engineer III, Telecommunications COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: December 17, 2013 Frequency Coordination and Interference Analysis Report 12/17/2013 Page 10 of 10


Document Created: 2013-12-17 16:04:11
Document Modified: 2013-12-17 16:04:11
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