Attachment Frequency Coord.

This document pretains to SES-LIC-20121010-00911 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012101000911_970693

Exhibit A FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for WXIN-TRIBUNE BROADCASTING INDIANAPOLIS, INDIANA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 August 22, 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 08/22/2012 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 08/22/2012 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 Verizon Wireless (VAW) – IN & KY Mkt. No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 08/22/2012 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. Expedited coordination data for this earth station was emailed and sent to the below listed carriers with a letter dated July 23, 2012. Company AT&T CORP Aether Group LLC Butler County Sheriff's Office CELLULAR PROPERTIES, INC. Conterra Ultra Broadband, LLC Cyberlink Inc. Duke Energy Carolinas LLC ECW Wireless, LLC GTE Mobilnet of Indiana Ltd Partnership Hoosier Energy Rec, Inc. INDIANA MICHIGAN POWER COMPANY Indiana Department of Transportation Indiana RSA #1 Limited Partnership Indiana RSA #4 Limited Partnership Indiana RSA #5 Limited Partnership Indiana, State of (IPSC) International Communications Group, Inc. METROPOLITAN EMERGENCY COMM AGENCY New Cingular Wireless PCS - Indiana Norfolk Southern Railway Northern Indiana Public Service Company PANHANDLE EASTERN PIPELINE COMPANY, LLC South Central Indiana REMC Southern Indiana RSA Limited Partenrship United Telephone Co of Indiana, Inc. Utilities Dist of Western Indiana REMC Verizon Wireless (VAW) LLC- IN & KY Mkt World Class Wireless LLC Frequency Coordination and Interference Analysis Report 08/22/2012 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 08/22/2012 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 08/22/2012 Job Number: 120723COMSJC03 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code TRIBUC Licensee Name WXIN - TRIBUNE BROADCASTING Site Information INDIANAPOLIS, INDIANA Venue Name Latitude (NAD 83) 39° 53' 20.0" N Longitude (NAD 83) 86° 12' 3.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 246.58 m / 809.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 142.5° to 247.2° Corresponding Elevation Angles 36.5° / 16.5° Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Receive Transmit Manufacturer ASC Signal ASC Signal Model 7.3 Meter 7.3 Meter Gain / Diameter 48.3 dBi / 7.3 m 51.7 dBi / 7.3 m 3-dB / 15-dB Beamwidth 0.66° / 1.22° 0.44° / 0.88° Max Available RF Power (dBW/4 kHz) -16.5 (dBW/MHz) 7.5 Maximum EIRP (dBW/4 kHz) 35.2 (dBW/MHz) 59.2 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) 36M0G7W / 3700.0 - 4200.0 36M0G7W / 5925.0 - 6425.0 Max Great Circle Coordination Distance 367.9 km / 228.6 mi 160.1 km / 99.4 mi Precipitation Scatter Contour Radius 513.6 km / 319.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 08/22/2012 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 INDIANAPOLIS, IN Licensee Name WXIN - TRIBUNE BROADCASTING Latitude (NAD 83) 39° 53' 20.0" N Longitude (NAD 83) 86° 12' 3.0" W Ground Elevation (AMSL) 246.58 m / 809.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model ASC Signal 7.3 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 -16.5 (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 0.00 111.78 -10.00 285.28 -10.00 126.18 5 0.00 116.53 -10.00 285.28 -10.00 126.18 10 0.00 121.26 -10.00 285.28 -10.00 126.18 15 0.00 119.29 -10.00 285.28 -10.00 126.18 20 0.00 115.58 -10.00 285.28 -10.00 126.18 25 0.00 111.78 -10.00 285.28 -10.00 126.18 30 0.00 107.91 -10.00 285.28 -10.00 126.18 35 0.00 103.99 -10.00 285.28 -10.00 126.18 40 0.00 100.02 -10.00 285.28 -10.00 126.18 45 0.00 96.02 -10.00 285.28 -10.00 126.18 50 0.00 92.01 -10.00 285.28 -10.00 126.18 55 0.00 87.99 -10.00 285.28 -10.00 126.18 60 0.00 83.98 -10.00 285.28 -10.00 126.18 65 0.00 79.99 -10.00 285.28 -10.00 126.18 70 0.00 76.02 -10.00 285.28 -10.00 126.18 75 0.00 72.09 -10.00 285.28 -10.00 126.18 80 0.00 68.22 -10.00 285.28 -10.00 126.18 85 0.00 64.42 -10.00 285.28 -10.00 126.18 90 0.00 60.72 -10.00 285.28 -10.00 126.18 95 0.00 57.12 -10.00 285.28 -10.00 126.18 100 0.00 53.67 -10.00 285.28 -10.00 126.18 105 0.00 50.40 -10.00 285.28 -10.00 126.18 110 0.00 47.34 -9.88 286.05 -9.88 126.50 115 0.00 44.54 -9.22 290.30 -9.22 128.25 120 0.00 42.07 -8.60 294.35 -8.60 129.90 125 0.00 39.97 -8.04 298.03 -8.04 131.38 130 0.00 38.32 -7.59 301.09 -7.59 132.61 135 0.00 37.19 -7.26 303.31 -7.26 133.49 140 0.00 36.60 -7.09 304.48 -7.09 133.95 145 0.00 36.60 -7.09 304.48 -7.09 133.95 150 0.00 37.18 -7.26 303.31 -7.26 133.49 155 0.00 38.32 -7.59 301.10 -7.59 132.61 160 0.00 39.97 -8.04 298.03 -8.04 131.39 165 0.00 41.62 -8.48 295.11 -8.48 130.21 170 0.00 42.85 -8.80 293.04 -8.80 129.37 175 0.00 43.60 -8.99 291.81 -8.99 128.87 180 0.00 43.85 -9.05 291.40 -9.05 128.70 Frequency Coordination and Interference Analysis Report 08/22/2012 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 INDIANAPOLIS, IN Licensee Name WXIN - TRIBUNE BROADCASTING Latitude (NAD 83) 39° 53' 20.0" N Longitude (NAD 83) 86° 12' 3.0" W Ground Elevation (AMSL) 246.58 m / 809.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model ASC Signal 7.3 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 -16.5 (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) 185 0.00 43.60 -8.99 291.81 -8.99 128.87 190 0.00 42.85 -8.80 293.04 -8.80 129.37 195 0.00 41.62 -8.48 295.11 -8.48 130.21 200 0.00 39.97 -8.04 298.03 -8.04 131.39 205 0.00 37.93 -7.48 301.85 -7.48 132.91 210 0.00 35.56 -6.78 306.62 -6.78 133.55 215 0.00 32.91 -5.93 313.09 -5.93 135.89 220 0.00 30.01 -4.93 320.16 -4.93 138.77 225 0.00 26.92 -3.75 328.64 -3.75 142.34 230 0.00 23.66 -2.35 338.91 -2.35 146.78 235 0.00 20.44 -0.76 350.79 -0.76 152.10 240 0.00 17.98 0.63 361.45 0.63 157.01 245 0.00 16.65 1.46 367.93 1.46 160.07 250 0.00 16.73 1.41 367.53 1.41 159.88 255 0.00 18.20 0.50 360.45 0.50 156.55 260 0.00 20.76 -0.93 349.53 -0.93 151.52 265 0.00 24.07 -2.54 337.53 -2.54 146.18 270 0.00 27.86 -4.13 325.94 -4.13 141.19 275 0.00 31.97 -5.62 315.31 -5.62 136.79 280 0.00 36.27 -6.99 305.15 -6.99 134.22 285 0.00 40.72 -8.25 296.69 -8.25 130.85 290 0.00 45.26 -9.39 289.17 -9.39 127.79 295 0.00 49.88 -10.00 285.28 -10.00 126.18 300 0.22 54.50 -10.00 282.38 -10.00 124.30 305 0.00 59.25 -10.00 285.28 -10.00 126.18 310 0.22 63.95 -10.00 283.20 -10.00 124.83 315 0.23 68.70 -10.00 281.81 -10.00 123.93 320 0.22 73.48 -10.00 282.95 -10.00 124.67 325 0.21 78.27 -10.00 284.11 -10.00 125.42 330 0.23 83.06 -10.00 280.90 -10.00 123.33 335 0.29 87.86 -10.00 274.08 -10.00 118.84 340 0.24 92.66 -10.00 279.82 -10.00 122.63 345 0.21 97.45 -10.00 283.68 -10.00 125.14 350 0.00 102.23 -10.00 285.28 -10.00 126.18 355 0.00 107.01 -10.00 285.28 -10.00 126.18 Frequency Coordination and Interference Analysis Report 08/22/2012 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. Jeffrey E. Cowles Engineer III, Telecommunications COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: August 22, 2012 Frequency Coordination and Interference Analysis Report 08/22/2012 Page 10 of 10


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Document Modified: 2019-04-08 23:10:23
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