Attachment Freq. Coord. Duluth

This document pretains to SES-LIC-20170726-00809 for License on a Satellite Earth Station filing.

IBFS_SESLIC2017072600809_1249231

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for SES Americom, Inc. DULUTH, MN Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 July 18, 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 07/18/2017 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. Further, there will be no restrictions of its operation due to interference considerations. Frequency Coordination and Interference Analysis Report 07/18/2017 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. Frequency Coordination and Interference Analysis Report 07/18/2017 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 06/13/2017. Company Access Equipment & Communications, Inc BNSF Railway Company Clearwire Spectrum Holdings III, LLC Compudyne Inc. Fixed Wireless Holdings, LLC Nextera Communications Regents of the University of Minnesota Saint Louis, County of Sprint Spectrum L.P. Sprintcom, Inc T-Mobile License LLC Frequency Coordination and Interference Analysis Report 07/18/2017 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 07/18/2017 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 07/18/2017 Job Number: 170613COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign DULUTH Licensee Code P3210 Licensee Name SES Americom, Inc. Site Information DULUTH, MN Venue Name Latitude (NAD 83) 46° 49' 37.6" N Longitude (NAD 83) 92° 7' 48.5" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 416.28 m / 1365.8 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 31° W to 154° West Longitude Azimuth Range 111.9° to 248.7° Corresponding Elevation Angles 10.7° / 10.3° Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer GD Satcom GD Satcom Model 6.3 meter 6.3 meter Gain / Diameter 59.5 dBi / 6.3 m 62.8 dBi / 6.3 m 3-dB / 15-dB Beamwidth 0.16° / 0.32° 0.11° / 0.22° Max Available RF Power (dBW/4 kHz) -20.5 (dBW/MHz) 3.5 Maximum EIRP (dBW/4 kHz) 42.3 (dBW/MHz) 66.3 Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Frequency Information Receive 18.0 GHz Transmit 28.0 GHz Emission / Frequency Range (MHz) N0N - 250MG7W / 18550.0 - 18800.0 N0N - 250MG7W / 28350.0 - 28600.0 N0N - 250MG7W / 19700.0 - 20200.0 N0N - 250MG7W / 29500.0 - 30000.0 Max Great Circle Coordination Distance 203.3 km / 126.3 mi 126.6 km / 78.6 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 07/18/2017 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 DULUTH, MN Licensee Name SES Americom, Inc. Latitude (NAD 83) 46° 49' 37.6" N Longitude (NAD 83) 92° 7' 48.5" W Ground Elevation (AMSL) 416.28 m / 1365.8 ft Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Model GD Satcom 6.3 meter Antenna Mode Receive 18.0 GHz Transmit 28.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -20.5 (dBW/4 kHz) Receive 18.0 GHz Transmit 28.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.35 110.97 -10.00 124.89 -10.00 100.00 5 0.40 106.62 -10.00 121.57 -10.00 100.00 10 0.39 101.71 -10.00 122.31 -10.00 100.00 15 0.00 96.79 -10.00 136.18 -10.00 100.00 20 0.27 91.88 -10.00 130.23 -10.00 100.00 25 0.51 86.96 -10.00 113.81 -10.00 100.00 30 0.41 82.04 -10.00 120.41 -10.00 100.00 35 0.31 77.13 -10.00 128.28 -10.00 100.00 40 0.24 72.22 -10.00 133.30 -10.00 100.00 45 0.47 67.30 -10.00 116.40 -10.00 100.00 50 0.27 62.42 -10.00 130.17 -10.00 100.00 55 0.00 57.56 -10.00 136.18 -10.00 100.00 60 0.00 52.69 -10.00 136.18 -10.00 100.00 65 0.00 47.84 -9.99 136.20 -9.99 100.00 70 0.00 43.01 -8.84 139.41 -8.84 100.00 75 0.00 38.22 -7.56 143.10 -7.56 100.00 80 0.00 33.49 -6.12 147.39 -6.12 100.00 85 0.00 28.82 -4.49 152.46 -4.49 100.00 90 0.00 24.28 -2.63 159.00 -2.63 100.00 95 0.00 19.95 -0.50 166.17 -0.50 104.64 100 0.00 15.99 1.91 174.45 1.91 110.41 105 0.00 12.75 4.36 183.14 4.36 116.30 110 0.00 10.91 6.05 203.30 6.05 126.56 115 0.00 11.18 5.79 188.33 5.79 119.74 120 0.00 13.42 3.80 181.15 3.80 114.96 125 0.00 16.48 1.58 173.30 1.58 109.62 130 0.00 19.41 -0.20 167.17 -0.20 105.35 135 0.00 22.21 -1.66 162.23 -1.66 101.84 140 0.00 24.84 -2.88 158.19 -2.88 100.00 145 0.00 27.27 -3.89 154.38 -3.89 100.00 150 0.00 29.48 -4.74 151.69 -4.74 100.00 155 0.00 31.42 -5.43 149.52 -5.43 100.00 160 0.00 33.08 -5.99 147.80 -5.99 100.00 165 0.00 34.40 -6.41 146.51 -6.41 100.00 170 0.00 35.37 -6.72 145.60 -6.72 100.00 175 0.00 35.96 -6.90 145.06 -6.90 100.00 180 0.00 36.16 -6.96 144.88 -6.96 100.00 185 0.00 35.96 -6.90 145.06 -6.90 100.00 Frequency Coordination and Interference Analysis Report 07/18/2017 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 DULUTH, MN Licensee Name SES Americom, Inc. Latitude (NAD 83) 46° 49' 37.6" N Longitude (NAD 83) 92° 7' 48.5" W Ground Elevation (AMSL) 416.28 m / 1365.8 ft Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Model GD Satcom 6.3 meter Antenna Mode Receive 18.0 GHz Transmit 28.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -20.5 (dBW/4 kHz) Receive 18.0 GHz Transmit 28.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.32 35.05 -6.62 135.42 -6.62 100.00 195 0.55 33.87 -6.24 121.66 -6.24 100.00 200 0.71 32.41 -5.77 115.98 -5.77 100.00 205 0.70 30.78 -5.21 117.91 -5.21 100.00 210 0.59 28.95 -4.54 124.38 -4.54 100.00 215 0.46 26.87 -3.73 132.78 -3.73 100.00 220 0.36 24.54 -2.75 144.06 -2.75 100.00 225 0.34 21.93 -1.52 148.99 -1.52 100.00 230 0.00 19.42 -0.20 167.17 -0.20 105.35 235 0.30 16.24 1.73 164.54 1.73 102.46 240 0.43 13.09 4.08 160.76 4.08 100.00 245 0.45 10.48 6.50 167.96 6.50 102.51 250 0.43 9.91 7.09 196.94 7.09 118.70 255 0.32 11.75 5.25 174.89 5.25 109.15 260 0.32 15.01 2.59 165.37 2.59 102.73 265 0.26 19.05 0.00 162.07 0.00 101.14 270 0.26 23.44 -2.25 154.34 -2.25 100.00 275 0.30 28.00 -4.18 144.57 -4.18 100.00 280 0.26 32.71 -5.87 143.10 -5.87 100.00 285 0.23 37.48 -7.34 140.76 -7.34 100.00 290 0.51 42.24 -8.64 117.33 -8.64 100.00 295 0.50 47.09 -9.82 114.75 -9.82 100.00 300 0.51 51.96 -10.00 113.57 -10.00 100.00 305 0.53 56.85 -10.00 113.05 -10.00 100.00 310 0.53 61.75 -10.00 112.74 -10.00 100.00 315 0.83 66.64 -10.00 100.12 -10.00 100.00 320 0.76 71.57 -10.00 103.14 -10.00 100.00 325 0.48 76.51 -10.00 115.80 -10.00 100.00 330 0.45 81.43 -10.00 117.56 -10.00 100.00 335 0.52 86.36 -10.00 113.46 -10.00 100.00 340 0.54 91.28 -10.00 112.53 -10.00 100.00 345 0.57 96.21 -10.00 111.19 -10.00 100.00 350 0.42 101.13 -10.00 120.20 -10.00 100.00 355 0.43 106.06 -10.00 119.21 -10.00 100.00 Frequency Coordination and Interference Analysis Report 07/18/2017 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. BY: _ Gary K. Edwards Senior Manager COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: July 18, 2017 Frequency Coordination and Interference Analysis Report 07/18/2017 Page 10 of 10


Document Created: 2017-07-18 16:02:16
Document Modified: 2017-07-18 16:02:16
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