Attachment Freq Coord

This document pretains to SES-STA-INTR2019-01704 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTAINTR201901704_1678951

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for WML Services, LLC ATLANTA, GA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 March 26, 2019

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 03/26/2019 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 03/26/2019 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 03/26/2019 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 03/12/2019. Company Alabama Great Southern Railroad Company Alltel Communications LLC - Alabama Athens Cellular, Inc. Barrow County Emergency Services Bartow, County of Calhoun County 911 Cellco Partnership - Georgia Mkt Central of Georgia Railway Company Clayton, County of Cobb, County of Conterra Ultra Broadband, LLC Conyers, City of Coweta County DeKalb County Police Department Diverse Power Inc Floyd County Forsyth, County of Fulton, County of Georgia System Operations Corporation Gwinnett County Government Hall County 9-1-1 Henry County Emergency Communications Jackson Electric Membership Corporation Monroe, County of (GA) New Cingular Wireless PCS LLC - AL, MS Norfolk Southern Railway Oconee County Sheriffs Office Olympic Wireless, LLC One Ring Networks, Inc. PowerSouth Energy Cooperative Public Service Towers, Inc. Southern Company Services, Inc. Southwestco Wireless LP (Georgia 5) T-Mobile License LLC Tallapoosa, County of Verizon Wireless (VAW) LLC (Georgia) Verizon Wireless (VAW) LLC - Alabama Verizon Wireless of The East LP - (GA) Verizon Wireless of the East LP- Alabama Walton County Georgia Frequency Coordination and Interference Analysis Report 03/26/2019 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 03/26/2019 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 03/26/2019 Job Number: 190312COMSGE19 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code WMLSER Licensee Name WML Services, LLC Site Information ATLANTA, GA Venue Name Latitude (NAD 83) 33° 41' 27.1" N Longitude (NAD 83) 84° 37' 21.4" W Climate Zone A Rain Zone 1 Ground Elevation (AMSL) 251.77 m / 826.0 ft Link Information Satellite Type Geostationary Mode TO - Transmit-Only Modulation Digital Satellite Arc 60° W to 140° West Longitude Azimuth Range 140.4° to 249.0° Corresponding Elevation Angles 42.8° / 20.0° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Transmit - FCC32 Manufacturer Viasat Model 8009A Gain / Diameter 53.8 dBi / 9.1 m 3-dB / 15-dB Beamwidth 0.36° / 0.72° Max Available RF Power (dBW/4 kHz) -18.6 (dBW/MHz) 5.4 Maximum EIRP (dBW/4 kHz) 35.2 (dBW/MHz) 59.2 Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Frequency Information Transmit 6.1 GHz Emission / Frequency Range (MHz) 36M0G7F / 5925.0 - 6425.0 Max Great Circle Coordination Distance 145.1 km / 90.2 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 03/26/2019 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 ATLANTA, GA Licensee Name WML Services, LLC Latitude (NAD 83) 33° 41' 27.1" N Longitude (NAD 83) 84° 37' 21.4" W Ground Elevation (AMSL) 251.77 m / 826.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Viasat 9.1 meter Antenna Mode Transmit 6.1 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -18.6 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.51 109.70 -10.00 100.00 5 0.86 114.42 -10.00 100.00 10 0.56 118.71 -10.00 100.00 15 0.52 115.42 -10.00 100.00 20 0.36 111.97 -10.00 107.46 25 0.00 108.38 -10.00 120.68 30 0.00 104.85 -10.00 120.68 35 0.00 101.27 -10.00 120.68 40 0.00 97.64 -10.00 120.68 45 0.00 93.99 -10.00 120.68 50 0.61 90.32 -10.00 100.00 55 0.91 86.60 -10.00 100.00 60 1.10 82.87 -10.00 100.00 65 1.01 79.19 -10.00 100.00 70 0.87 75.57 -10.00 100.00 75 1.11 71.91 -10.00 100.00 80 0.83 68.47 -10.00 100.00 85 0.64 65.12 -10.00 100.00 90 0.66 61.80 -10.00 100.00 95 0.41 58.77 -10.00 103.84 100 0.98 55.43 -10.00 100.00 105 0.25 53.10 -10.00 116.75 110 0.22 50.57 -10.00 118.96 115 0.31 48.23 -10.00 111.87 120 0.39 46.20 -9.62 106.43 125 0.28 44.70 -9.26 115.88 130 0.00 43.79 -9.03 123.20 135 0.20 42.85 -8.80 123.53 140 0.38 42.40 -8.68 109.90 145 0.27 42.70 -8.76 118.36 150 0.45 43.19 -8.88 103.48 155 0.23 44.51 -9.21 120.23 160 0.37 45.91 -9.55 108.05 165 0.31 47.80 -9.99 112.09 170 0.38 49.22 -10.00 106.15 175 0.00 50.51 -10.00 120.68 180 0.23 50.60 -10.00 118.05 185 0.00 50.51 -10.00 120.68 Frequency Coordination and Interference Analysis Report 03/26/2019 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 ATLANTA, GA Licensee Name WML Services, LLC Latitude (NAD 83) 33° 41' 27.1" N Longitude (NAD 83) 84° 37' 21.4" W Ground Elevation (AMSL) 251.77 m / 826.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Viasat 9.1 meter Antenna Mode Transmit 6.1 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -18.6 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0.00 49.58 -10.00 120.68 195 0.62 47.53 -9.92 100.00 200 0.86 45.35 -9.42 100.00 205 0.27 43.41 -8.94 117.33 210 0.00 40.82 -8.27 125.20 215 0.00 37.74 -7.42 127.45 220 0.00 34.41 -6.42 130.12 225 0.00 30.90 -5.25 133.25 230 0.00 27.37 -3.93 135.60 235 0.00 24.31 -2.64 139.33 240 0.00 21.91 -1.52 142.75 245 0.00 20.43 -0.76 145.14 250 0.31 19.76 -0.40 136.61 255 0.38 20.52 -0.80 130.97 260 0.65 22.17 -1.65 111.85 265 0.58 24.97 -2.94 111.44 270 0.58 28.30 -4.29 107.91 275 0.59 32.03 -5.64 103.82 280 0.64 36.02 -6.91 100.00 285 0.73 40.19 -8.10 100.00 290 0.78 44.53 -9.22 100.00 295 0.87 48.96 -10.00 100.00 300 0.96 53.47 -10.00 100.00 305 0.85 58.09 -10.00 100.00 310 0.87 62.71 -10.00 100.00 315 0.83 67.37 -10.00 100.00 320 0.90 72.05 -10.00 100.00 325 0.99 76.74 -10.00 100.00 330 0.93 81.46 -10.00 100.00 335 0.92 86.18 -10.00 100.00 340 1.03 90.91 -10.00 100.00 345 0.83 95.63 -10.00 100.00 350 0.46 100.32 -10.00 100.00 355 0.55 105.02 -10.00 100.00 Frequency Coordination and Interference Analysis Report 03/26/2019 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: March 26, 2019 Frequency Coordination and Interference Analysis Report 03/26/2019 Page 10 of 10


Document Created: 2019-05-09 14:22:32
Document Modified: 2019-05-09 14:22:32
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