Attachment Coordination Report

This document pretains to SES-MOD-20120720-00682 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2012072000682_959857

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Interstate Communications, Inc. BATON ROUGE, LA (E050083) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 July 19, 2012

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 07/19/2012 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 07/19/2012 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 Bell Atlantic Mobile Allentown-Verizon W Southern Light, LLC Verizon Wireless Personal Comm LP-LA/MS No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 07/19/2012 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 06/20/2012. Company Acadiana Cellular General Partnership Alltel Communications LLC - LA/MS Bell Atlantic Mobile Allentown-Verizon W Cebridge Acquisition, L.P. Cellular South Licenses, Inc. Cleco Power LLC DELTA MEDIA CORPORATION DIXIE ELECTRIC MEMBERSHIP CORP ENERGY XXI LLC ENTERGY SERVICES INC GTE Mobilnet of South Texas LTD Partners Greater Lafourche Port Commission Jefferson Parish Sheriff's Office Lafayette MSA Limited Partnership Louisiana RSA #7 Cell Gen Partnership Louisiana, State Of Lousiana Dept. of Transportation and Dev Mississippi Authority for ED TV NETWORK USA NEW ORLEANS CITY POLICE DEPARTMENT NEW ORLEANS EDUCATIONAL TELECOMM New Cingular Wireless PCS, LLC - LA, GM New Orleans City New Orleans UASI Region Plaquemines Parish Government STAR TELEPHONE COMPANY Southern Light, LLC Sprint Spectrum LP DBA Sprint PCS Sprint Spectrum LP Louisiana State of Mississippi Wireless Communicat Stratos Offshore Services Company T-MOBILE USA, INC. TELELINK INC. Texas Eastern Communications, Inc. Verizon Wireless Mississippi, LLC Verizon Wireless Personal Comm LP-LA/MS Wireless Infrastructure Partners, LLC Frequency Coordination and Interference Analysis Report 07/19/2012 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 07/19/2012 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 07/19/2012 Job Number: 120620COMSGE01 Administrative Information Status ENGINEER PROPOSAL Call Sign E050083 Licensee Code NRSTAT Licensee Name Interstate Communications, Inc. Site Information BATON ROUGE, LA Venue Name Latitude (NAD 83) 30° 24' 56.0" N Longitude (NAD 83) 91° 3' 50.8" W Climate Zone A Rain Zone 1 Ground Elevation (AMSL) 13.7 m / 45.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 65° W to 140° West Longitude Azimuth Range 136.0° to 246.2° Corresponding Elevation Angles 44.6° / 26.7° Antenna Centerline (AGL) 2.13 m / 7.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Vertex Vertex Model 3.8 Meter 3.8 Meter Gain / Diameter 42.6 dBi / 3.8 m 46.2 dBi / 3.8 m 3-dB / 15-dB Beamwidth 1.28° / 2.69° 0.85° / 1.79° Max Available RF Power (dBW/4 kHz) -14.0 (dBW/MHz) 10.0 Maximum EIRP (dBW/4 kHz) 32.2 (dBW/MHz) 56.2 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) 400KG7W / 3700.0 - 4200.0 400KG7W / 5925.0 - 5948.0 400KG7W / 6139.0 - 6200.0 400KG7W / 6253.0 - 6260.0 400KG7W / 6313.0 - 6378.0 Max Great Circle Coordination Distance 329.1 km / 204.5 mi 150.6 km / 93.6 mi Precipitation Scatter Contour Radius 565.6 km / 351.4 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 07/19/2012 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 BATON ROUGE, LA Licensee Name Interstate Communications, Inc. Latitude (NAD 83) 30° 24' 56.0" N Longitude (NAD 83) 91° 3' 50.8" W Ground Elevation (AMSL) 13.7 m / 45.0 ft Antenna Centerline (AGL) 2.13 m / 7.0 ft Antenna Model Vertex 3.8 Meter 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 -14.0 (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 0.00 111.13 -10.00 285.28 -10.00 132.84 5 0.00 115.48 -10.00 285.28 -10.00 132.84 10 0.00 114.74 -10.00 285.28 -10.00 132.84 15 0.00 111.51 -10.00 285.28 -10.00 132.84 20 0.00 108.18 -10.00 285.28 -10.00 132.84 25 0.00 104.78 -10.00 285.28 -10.00 132.84 30 0.00 101.31 -10.00 285.28 -10.00 132.84 35 0.00 97.80 -10.00 285.28 -10.00 132.84 40 0.00 94.26 -10.00 285.28 -10.00 132.84 45 0.00 90.70 -10.00 285.28 -10.00 132.84 50 0.00 87.15 -10.00 285.28 -10.00 132.84 55 0.00 83.60 -10.00 285.28 -10.00 132.84 60 0.00 80.07 -10.00 285.28 -10.00 132.84 65 0.00 76.59 -10.00 285.28 -10.00 132.84 70 0.00 73.16 -10.00 285.28 -10.00 132.84 75 0.00 69.80 -10.00 285.28 -10.00 132.84 80 0.00 66.53 -10.00 285.28 -10.00 132.84 85 0.00 63.37 -10.00 285.28 -10.00 132.84 90 0.00 60.35 -10.00 285.28 -10.00 132.84 95 0.00 57.49 -10.00 285.28 -10.00 132.84 100 0.00 54.82 -10.00 285.28 -10.00 132.84 105 0.00 52.38 -10.00 285.28 -10.00 132.84 110 0.00 50.20 -10.00 285.28 -10.00 132.84 115 0.00 48.33 -10.00 285.28 -10.00 132.84 120 0.00 46.80 -9.76 286.84 -9.76 133.50 125 0.00 45.65 -9.49 288.57 -9.49 134.23 130 0.00 44.91 -9.31 289.71 -9.31 133.46 135 0.00 44.60 -9.23 290.20 -9.23 133.66 140 0.00 44.74 -9.27 289.99 -9.27 133.57 145 0.00 45.31 -9.40 289.10 -9.40 133.20 150 0.00 46.30 -9.64 287.59 -9.64 133.82 155 0.00 47.68 -9.96 285.54 -9.96 132.96 160 0.00 49.42 -10.00 285.28 -10.00 132.84 165 0.00 51.45 -10.00 285.28 -10.00 132.84 170 0.00 53.14 -10.00 285.28 -10.00 132.84 175 0.00 54.19 -10.00 285.28 -10.00 132.84 180 0.00 54.55 -10.00 285.28 -10.00 132.84 185 0.00 54.20 -10.00 285.28 -10.00 132.84 Frequency Coordination and Interference Analysis Report 07/19/2012 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 BATON ROUGE, LA Licensee Name Interstate Communications, Inc. Latitude (NAD 83) 30° 24' 56.0" N Longitude (NAD 83) 91° 3' 50.8" W Ground Elevation (AMSL) 13.7 m / 45.0 ft Antenna Centerline (AGL) 2.13 m / 7.0 ft Antenna Model Vertex 3.8 Meter 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 -14.0 (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 53.14 -10.00 285.28 -10.00 132.84 195 0.00 51.45 -10.00 285.28 -10.00 132.84 200 0.00 49.22 -10.00 285.28 -10.00 132.84 205 0.00 46.54 -9.70 287.22 -9.70 133.66 210 0.00 43.50 -8.96 291.96 -8.96 134.41 215 0.00 40.17 -8.10 297.66 -8.10 136.84 220 0.00 36.75 -7.13 304.19 -7.13 139.67 225 0.00 33.63 -6.17 310.82 -6.17 142.59 230 0.00 30.95 -5.27 317.78 -5.27 145.43 235 0.00 28.83 -4.50 323.27 -4.50 147.94 240 0.00 27.40 -3.94 327.25 -3.94 149.78 245 0.00 26.77 -3.69 329.08 -3.69 150.63 250 0.00 26.99 -3.78 328.42 -3.78 150.33 255 0.00 28.05 -4.20 325.40 -4.20 148.92 260 0.00 29.86 -4.88 320.55 -4.88 146.69 265 0.00 32.29 -5.73 314.54 -5.73 143.97 270 0.00 35.21 -6.67 307.37 -6.67 141.07 275 0.00 38.51 -7.64 300.74 -7.64 138.17 280 0.00 42.09 -8.61 294.31 -8.61 135.40 285 0.00 45.90 -9.55 288.19 -9.55 134.07 290 0.00 49.87 -10.00 285.28 -10.00 132.84 295 0.00 53.97 -10.00 285.28 -10.00 132.84 300 0.00 58.17 -10.00 285.28 -10.00 132.84 305 0.00 62.45 -10.00 285.28 -10.00 132.84 310 0.00 66.78 -10.00 285.28 -10.00 132.84 315 0.00 71.16 -10.00 285.28 -10.00 132.84 320 0.00 75.58 -10.00 285.28 -10.00 132.84 325 0.00 80.01 -10.00 285.28 -10.00 132.84 330 0.00 84.47 -10.00 285.28 -10.00 132.84 335 0.00 88.93 -10.00 285.28 -10.00 132.84 340 0.00 93.40 -10.00 285.28 -10.00 132.84 345 0.00 97.86 -10.00 285.28 -10.00 132.84 350 0.00 102.30 -10.00 285.28 -10.00 132.84 355 0.00 106.73 -10.00 285.28 -10.00 132.84 Frequency Coordination and Interference Analysis Report 07/19/2012 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. BY: _ Gary K. Edwards Senior Manager COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: July 19, 2012 Frequency Coordination and Interference Analysis Report 07/19/2012 Page 10 of 10


Document Created: 2012-07-19 09:56:21
Document Modified: 2012-07-19 09:56:21
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