Attachment Exhibit B

This document pretains to SES-LIC-20091024-01355 for License on a Satellite Earth Station filing.

IBFS_SESLIC2009102401355_770916

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for PETROCOM LICENSE CORP. EAST CAMERON 167, GULF of MEXICO (Oil Platform) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 October 22, 2009

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 10/22/2009 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, based upon the restrictions noted in the Summary of Results (Section 2). Frequency Coordination and Interference Analysis Report 10/22/2009 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 most cases. 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 and frequency separation are considered on the interfering paths, sufficient losses exist to negate harmful interference from occurring with the proposed transmit-receive earth station. Further, the transmit spectrum will be limited from 5925.0 to 5999.0 MHz, 6010.0 to 6251.0 MHz, and 6262.0 to 6425.0 MHz. Company None No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 10/22/2009 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. Coordination data for this earth station was sent to the below listed carriers with a letter dated September 17, 2009. Company AT&T COMM. OF THE SOUTH CENTRAL STATES American National Insurance Company Bell Atlantic Mobile Allentown-Verizon W CENTERPOINT ENERGY, INC. Calcasieu Parish Sheriff's Office Centennial Southeast License Company LLC ERF Wireless Bundled Services, Inc. GTE Mobilnet of South Texas LTD Partners GTE Mobilnet of Texas RSA #17 LTD Prtnsh Harris County ITC International Communications Group, Inc. LOUISIANA STATE COMMUNICATION SECTION MCI Communication Services, Inc. PATHNET, INC. - DEBTOR IN POSSESSION Southern & Central Wireless, LLC Stratos Offshore Services Company Texas Eastern Communications, Inc. Verizon Wireless Texas, LLC Frequency Coordination and Interference Analysis Report 10/22/2009 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 10/22/2009 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 10/22/2009 Job Number: 090917COMSJC01 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code PETCOM Licensee Name PETROCOM LICENSE CORP. Site Information EAST CAMERON 167, GULF of MEXICO Venue Name Oil Platform Latitude (NAD 83) 29° 23' 16.0" N Longitude (NAD 83) 93° 28' 28.0" 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 60° W to 143° West Longitude Azimuth Range 126.6° to 247.3° Corresponding Elevation Angles 40.0° / 26.7° Antenna Centerline (AGL) 30.48 m / 100.0 ft Antenna Information Receive Transmit Manufacturer Prodelin Prodelin Model 1251 1251 Gain / Diameter 38.0 dBi / 2.4 m 42.0 dBi / 2.4 m 3-dB / 15-dB Beamwidth 2.16° / 4.00° 1.36° / 2.54° 725KG7W to 2M90G7W Max Available RF Power (dBW/4 kHz) -21.5 -21.5 (dBW/MHz) 1.1 2.5 Maximum EIRP (dBW/4 kHz) 20.5 20.5 (dBW/MHz) 43.1 44.5 (dBW) 43.1 49.1 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) 725KG7W - 2M90G7W / 3700.0 - 4200.0 725KG7W - 2M90G7W / 5925.0 - 5999.0 725KG7W - 2M90G7W / 6010.0 - 6251.0 725KG7W - 2M90G7W / 6262.0 - 6425.0 Max Great Circle Coordination Distance 497.9 km / 309.4 mi 141.5 km / 87.9 mi Precipitation Scatter Contour Radius 565.7 km / 351.5 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 10/22/2009 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 E. CAMERON 167, GM Licensee Name PETROCOM LICENSE CORP. Latitude (NAD 83) 29° 23' 16.0" N Longitude (NAD 83) 93° 28' 28.0" W Ground Elevation (AMSL) 0.0 m / 0.0 ft Antenna Centerline (AGL) 30.48 m / 100.0 ft Antenna Model Prodelin 1251 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 -21.5 (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 0.00 110.19 -10.00 412.20 -10.00 120.86 5 0.00 113.67 -10.00 412.20 -10.00 120.86 10 0.00 110.06 -10.00 412.20 -10.00 120.86 15 0.00 106.38 -10.00 412.20 -10.00 120.86 20 0.00 102.63 -10.00 412.20 -10.00 120.86 25 0.00 98.85 -10.00 412.20 -10.00 120.86 30 0.00 95.04 -10.00 412.20 -10.00 120.86 35 0.00 91.21 -10.00 412.20 -10.00 120.86 40 0.00 87.38 -10.00 412.20 -10.00 120.86 45 0.00 83.56 -10.00 412.20 -10.00 120.86 50 0.00 79.75 -10.00 412.20 -10.00 120.86 55 0.00 75.99 -10.00 412.20 -10.00 120.86 60 0.00 72.26 -10.00 412.20 -10.00 120.86 65 0.00 68.61 -10.00 412.20 -10.00 120.86 70 0.00 65.03 -10.00 412.20 -10.00 120.86 75 0.00 61.56 -10.00 412.20 -10.00 120.86 80 0.00 58.21 -10.00 412.20 -10.00 120.86 85 0.00 55.02 -10.00 412.20 -10.00 120.86 90 0.00 52.01 -10.00 412.20 -10.00 120.86 95 0.00 49.24 -10.00 412.20 -10.00 120.86 100 0.00 46.73 -9.74 415.44 -9.74 121.60 105 0.00 44.54 -9.22 422.00 -9.22 123.09 110 0.00 42.73 -8.77 427.78 -8.77 124.42 115 0.00 41.34 -8.41 432.45 -8.41 125.51 120 0.00 40.41 -8.16 435.66 -8.16 126.26 125 0.00 39.99 -8.05 437.16 -8.05 126.61 130 0.00 40.08 -8.07 436.82 -8.07 126.53 135 0.00 40.69 -8.24 434.67 -8.24 126.02 140 0.00 41.79 -8.53 430.89 -8.53 125.14 145 0.00 43.35 -8.92 425.77 -8.92 123.96 150 0.00 45.31 -9.40 419.66 -9.40 122.56 155 0.00 47.62 -9.94 412.90 -9.94 121.02 160 0.00 50.20 -10.00 412.20 -10.00 120.86 165 0.00 52.50 -10.00 412.20 -10.00 120.86 170 0.00 54.26 -10.00 412.20 -10.00 120.86 175 0.00 55.35 -10.00 412.20 -10.00 120.86 180 0.00 55.73 -10.00 412.20 -10.00 120.86 185 0.00 55.35 -10.00 412.20 -10.00 120.86 Frequency Coordination and Interference Analysis Report 10/22/2009 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 E. CAMERON 167, GM Licensee Name PETROCOM LICENSE CORP. Latitude (NAD 83) 29° 23' 16.0" N Longitude (NAD 83) 93° 28' 28.0" W Ground Elevation (AMSL) 0.0 m / 0.0 ft Antenna Centerline (AGL) 30.48 m / 100.0 ft Antenna Model Prodelin 1251 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 -21.5 (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 54.25 -10.00 412.20 -10.00 120.86 195 0.00 52.50 -10.00 412.20 -10.00 120.86 200 0.00 50.20 -10.00 412.20 -10.00 120.86 205 0.00 47.44 -9.90 413.39 -9.90 121.13 210 0.00 44.32 -9.17 422.69 -9.17 123.25 215 0.00 40.92 -8.30 433.89 -8.30 125.84 220 0.00 37.42 -7.33 446.76 -7.33 128.87 225 0.00 34.22 -6.36 460.02 -6.36 132.05 230 0.00 31.43 -5.44 472.35 -5.44 135.19 235 0.00 29.18 -4.63 484.04 -4.63 138.06 240 0.00 27.58 -4.02 493.05 -4.02 140.29 245 0.00 26.77 -3.69 497.92 -3.69 141.50 250 0.00 26.80 -3.71 497.68 -3.71 141.44 255 0.00 27.69 -4.06 492.39 -4.06 140.13 260 0.00 29.35 -4.69 483.08 -4.69 137.82 265 0.00 31.66 -5.51 471.23 -5.51 134.92 270 0.00 34.49 -6.44 458.84 -6.44 131.76 275 0.00 37.72 -7.42 445.59 -7.42 128.59 280 0.00 41.26 -8.39 432.71 -8.39 125.57 285 0.00 45.03 -9.34 420.51 -9.34 122.75 290 0.00 48.97 -10.00 412.20 -10.00 120.86 295 0.00 53.05 -10.00 412.20 -10.00 120.86 300 0.00 57.23 -10.00 412.20 -10.00 120.86 305 0.00 61.50 -10.00 412.20 -10.00 120.86 310 0.00 65.83 -10.00 412.20 -10.00 120.86 315 0.00 70.20 -10.00 412.20 -10.00 120.86 320 0.00 74.61 -10.00 412.20 -10.00 120.86 325 0.00 79.05 -10.00 412.20 -10.00 120.86 330 0.00 83.50 -10.00 412.20 -10.00 120.86 335 0.00 87.97 -10.00 412.20 -10.00 120.86 340 0.00 92.43 -10.00 412.20 -10.00 120.86 345 0.00 96.90 -10.00 412.20 -10.00 120.86 350 0.00 101.35 -10.00 412.20 -10.00 120.86 355 0.00 105.78 -10.00 412.20 -10.00 120.86 Frequency Coordination and Interference Analysis Report 10/22/2009 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 Principal Frequency Planner COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: October 22, 2009 Frequency Coordination and Interference Analysis Report 10/22/2009 Page 10 of 10


Document Created: 2009-10-22 16:14:17
Document Modified: 2009-10-22 16:14:17
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC