Attachment CoordRpt

This document pretains to SES-MOD-20170627-00692 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2017062700692_1242345

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for RCN License Subsidiary, Inc. BIRMINGHAM, AL Call Sign: E060118 Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 June 27, 2017

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 06/27/2017 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. Operation will be restricted to the bandwidth shown in Section 4 of this report. Frequency Coordination and Interference Analysis Report 06/27/2017 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 Alabama Power Company Alabama Regional Communications System Cellco Partnership - Alabama Jefferson County Commission Norfolk Southern Railway Verizon Wireless (VAW) LLC - Alabama No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 06/27/2017 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 05/18/2017. Company Alabama Great Southern Railroad Company Alabama Power Company Alabama Regional Communications System Alltel Communications LLC - Alabama Birmingham, City of Calhoun County 911 Cellco Partnership - Alabama City of Gadsden Alabama City of Hoover Conterra Ultra Broadband, LLC Etowah County Communications Gadsden Celltelco Partnership Jefferson County Commission Kimtron, Inc. MCIS Inc Morgan County EMCD New Cingular Wireless PCS LLC - AL, MS Norfolk Southern Railway Northport, City of PowerSouth Energy Cooperative Southern Company Services Inc. T-Mobile License LLC Tallapoosa, County of Tuscaloosa Cellular Partnership Verizon Wireless (VAW) LLC - Alabama WVTM HearstTelevision Inc Frequency Coordination and Interference Analysis Report 06/27/2017 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 06/27/2017 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 06/27/2017 Job Number: 170518COMSTC12 Administrative Information Call Sign E060118 Licensee Name RCN License Subsidiary, Inc. Site Information BIRMINGHAM, AL Venue Name BIRMINGHAM RACE COURSE Latitude (NAD 83) 33° 34' 32.1" N Longitude (NAD 83) 86° 39' 40.7" W Climate Zone A Rain Zone 1 Ground Elevation (AMSL) 259.26 m / 850.6 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 137.8° to 249.8° Corresponding Elevation Angles 41.6° / 19.3° Antenna Centerline (AGL) 2.74 m / 9.0 ft Antenna Information Receive - C40551 Transmit - C60551 Manufacturer COMTECH ANTENNA SYSTEMS COMTECH ANTENNA SYSTEMS Model 5 METER OFFSAT 5 METER OFFSAT Gain / Diameter 42.0 dBi / 5.5 m 45.9 dBi / 5.5 m 3-dB / 15-dB Beamwidth 1.00° / 2.00° 0.60° / 1.60° 1M20G7W - 36M0G7W Max Available RF Power (dBW/4 kHz) -14.0 -15.56 (dBW/MHz) 10.0 8.44 Maximum EIRP (dBW/4 kHz) 31.9 30.3 (dBW/MHz) 55.9 54.3 (dBW) 56.67 69.9 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) 1M20G7W - 36M0G7W / 3700.0 - 4200.0 1M20G7W - 36M0G7W / 5963.0 - 6323.0 1M20G7W - 36M0G7W / 6367.0 - 6423.0 Max Great Circle Coordination Distance 304.0 km / 188.9 mi 138.5 km / 86.0 mi Precipitation Scatter Contour Radius 581.8 km / 361.4 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 06/27/2017 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 BIRMINGHAM, AL Licensee Name RCN License Subsidiary, Inc. Latitude (NAD 83) 33° 34' 32.1" N Longitude (NAD 83) 86° 39' 40.7" W Ground Elevation (AMSL) 259.26 m / 850.6 ft Antenna Centerline (AGL) 2.74 m / 9.0 ft Antenna Model COMTECH ANTENNA SYSTEMS 5 METER OFFSAT 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 1.18 109.18 -9.84 215.67 -11.44 100.00 5 0.72 113.82 -10.76 232.00 -13.63 100.00 10 1.43 117.89 -12.16 200.26 -14.10 100.00 15 1.97 114.62 -10.92 190.88 -13.95 100.00 20 1.73 110.94 -10.19 201.03 -12.48 100.00 25 1.34 107.17 -9.43 212.89 -9.83 100.00 30 2.02 103.60 -8.72 200.00 -8.22 100.00 35 2.55 99.88 -8.02 191.56 -8.18 100.00 40 1.87 95.96 -8.09 204.49 -8.12 100.00 45 1.74 92.12 -8.07 208.06 -8.21 100.00 50 2.07 88.28 -8.04 202.11 -8.26 100.00 55 2.74 84.38 -8.00 187.41 -8.25 100.00 60 3.32 80.43 -8.00 174.35 -8.21 100.00 65 3.13 76.59 -8.00 178.56 -8.18 100.00 70 2.95 72.82 -8.02 182.55 -8.14 100.00 75 3.22 68.99 -8.09 176.25 -8.25 100.00 80 3.76 65.10 -8.08 162.15 -8.20 100.00 85 4.22 61.27 -8.00 153.71 -8.11 100.00 90 4.36 57.67 -8.07 151.26 -8.29 100.00 95 4.20 54.34 -8.10 153.55 -8.27 100.00 100 3.07 51.82 -8.08 179.54 -8.18 100.00 105 3.02 48.93 -8.08 180.86 -8.11 100.00 110 2.43 46.71 -8.02 194.26 -8.20 100.00 115 2.17 44.61 -8.06 199.79 -8.10 100.00 120 1.98 42.84 -8.02 204.11 -8.24 100.00 125 1.80 41.50 -8.04 206.40 -8.12 100.00 130 1.72 40.54 -8.01 208.79 -8.19 100.00 135 1.96 39.75 -8.06 204.49 -8.18 100.00 140 2.59 39.10 -8.04 190.65 -8.14 100.00 145 2.60 39.59 -8.07 190.14 -8.27 100.00 150 2.70 40.52 -8.13 187.78 -9.10 100.00 155 2.43 42.26 -9.09 189.10 -9.19 100.00 160 2.85 43.82 -9.76 176.20 -10.14 100.00 165 2.76 45.75 -10.15 176.34 -11.10 100.00 170 2.99 46.89 -10.38 169.83 -12.06 100.00 175 3.26 47.43 -10.49 161.16 -12.10 100.00 180 3.08 47.88 -10.58 164.93 -12.10 100.00 185 3.15 47.54 -10.51 163.50 -12.10 100.00 Frequency Coordination and Interference Analysis Report 06/27/2017 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 BIRMINGHAM, AL Licensee Name RCN License Subsidiary, Inc. Latitude (NAD 83) 33° 34' 32.1" N Longitude (NAD 83) 86° 39' 40.7" W Ground Elevation (AMSL) 259.26 m / 850.6 ft Antenna Centerline (AGL) 2.74 m / 9.0 ft Antenna Model COMTECH ANTENNA SYSTEMS 5 METER OFFSAT 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 3.21 46.67 -10.33 163.01 -12.10 100.00 195 2.64 45.86 -10.17 179.01 -12.10 100.00 200 2.44 44.16 -9.83 185.32 -11.93 100.00 205 2.40 41.87 -9.37 188.29 -11.47 100.00 210 2.08 39.41 -8.88 197.97 -10.86 100.00 215 2.79 35.88 -8.18 185.43 -9.45 100.00 220 2.19 33.03 -8.00 199.54 -8.31 100.00 225 1.37 30.09 -8.00 218.96 -7.14 100.00 230 0.21 27.22 -6.89 303.99 -7.10 138.49 235 0.36 23.86 -5.54 295.07 -6.64 129.21 240 0.84 20.81 -4.32 262.91 -5.42 105.57 245 1.18 18.71 -2.97 254.48 -5.10 100.00 250 1.35 17.95 -2.36 252.58 -5.10 100.00 255 1.61 18.42 -2.74 241.00 -5.10 100.00 260 0.85 21.01 -4.40 261.74 -5.50 104.90 265 1.08 23.57 -5.43 242.67 -6.53 100.00 270 0.59 27.28 -6.91 262.49 -7.10 112.23 275 0.63 31.01 -8.00 253.53 -7.50 109.55 280 1.17 34.79 -8.00 225.17 -8.27 100.00 285 1.57 38.91 -8.09 212.66 -8.16 100.00 290 1.27 43.44 -8.03 221.98 -8.17 100.00 295 0.66 48.13 -8.03 251.27 -8.26 106.06 300 0.70 52.67 -8.03 248.52 -8.19 104.39 305 1.14 57.18 -8.01 226.21 -8.25 100.00 310 0.69 61.92 -8.05 249.13 -8.20 104.84 315 0.85 66.57 -8.04 239.14 -8.20 100.00 320 1.31 71.22 -8.05 220.48 -8.24 100.00 325 1.58 75.94 -8.00 212.70 -8.21 100.00 330 0.84 80.73 -8.07 239.45 -8.22 100.00 335 1.47 85.45 -8.02 216.00 -8.21 100.00 340 2.03 90.21 -8.02 202.94 -8.13 100.00 345 1.63 94.97 -8.04 211.15 -8.13 100.00 350 2.10 99.76 -8.05 201.33 -8.14 100.00 355 1.72 104.49 -8.90 204.80 -8.18 100.00 Frequency Coordination and Interference Analysis Report 06/27/2017 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. Timothy O. Crutcher Frequency Planner COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: June 27, 2017 Frequency Coordination and Interference Analysis Report 06/27/2017 Page 10 of 10


Document Created: 2017-06-27 10:59:18
Document Modified: 2017-06-27 10:59:18
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