Attachment Exh 3 Freq Coord

This document pretains to SES-LIC-20181224-03650 for License on a Satellite Earth Station filing.

IBFS_SESLIC2018122403650_1593686

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Atlas Space Operations, Inc. HARMON, GUAM Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 December 18, 2018

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................ 3 2. SUMMARY OF RESULTS ............................................................................................................................ 4 3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5 4. EARTH STATION COORDINATION DATA .................................................................................................. 7 5. CERTIFICATION ......................................................................................................................................... 11 Frequency Coordination and Interference Analysis Report 12/18/2018 Page 2 of 11

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 12/18/2018 Page 3 of 11

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 12/18/2018 Page 4 of 11

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 09/18/2018. Company 3G Wireless, LLC AERIAL VIDEO SYSTEMS Alascom Inc Borgeson, Tom R. Broadcast Sports Inc. Casper, John Chicago Comnet Corp Citywide News Network, Inc. Cowboys Stadium LP CP communications, LLC DCI II, INC. Direct Broadcast Services, Inc. Frontier California Inc. Guam Educational Telecom Corp HF Enterprises, Inc Hallco Unlimited, Inc. Heiden, William Im360 Entertainment Information & Display Systems, Inc. Information Super Station, LLC Interlink Network Corp. International Communications Group, Inc. Loop Inc. MERCURY COMMUNICATIONS Microwave Video Systems, LLC Moreen, Steven K NEW ENGLAND DIGITAL DISTRIBUTION, INC. NSM Surveillance Navajo Communications Company Onboard Images Pacific Television Center Penn Service Microwave Co., Inc. Plateau Telecommunications, Inc. Plum TV, LLC Production & Satellite Services, Inc. REMOTE FACILITIES CONSULTING SERVICES RF Central, LLC RF Film, Inc Radiofone, Inc. Randy Hermes Production Remote Broadcasts, Inc. Frequency Coordination and Interference Analysis Report 12/18/2018 Page 5 of 11

Speedshotz, Inc TTWN Networks, LLC Unisat, Inc. United Telephone - Southeast Vitec Broadcast Services, Inc. Vyvx, LLC Westar Satellite Services LP Winged Vision Inc Wolfe Air Aviation Frequency Coordination and Interference Analysis Report 12/18/2018 Page 6 of 11

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 12/18/2018 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 12/18/2018 Job Number: 180918COMSGE11 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code ATLSPC Licensee Name Atlas Space Operations, Inc. Site Information HARMON, GUAM Venue Name Latitude (NAD 83) 13° 30' 48.8" N Longitude (NAD 83) 144° 49' 31.1" E Climate Zone C Rain Zone 4 Ground Elevation (AMSL) 72.02 m / 236.3 ft Link Information Satellite Type Low Earth Orbit Mode TO - Transmit-Only Modulation Digital Minimum Elevation Angle 5.0° Azimuth Range 0.0° to 360° Antenna Centerline (AGL) 2.74 m / 9.0 ft Antenna Information Transmit - FCC32 Manufacturer Orbital Model 3.7 meter Gain / Diameter 35.0 dBi / 3.7 m 3-dB / 15-dB Beamwidth 0.50° / 1.00° Max Available RF Power (dBW/4 kHz) 0.0 (dBW/MHz) 24.0 Maximum EIRP (dBW/4 kHz) 35.0 (dBW/MHz) 59.0 Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Frequency Information Transmit 2.0 GHz Emission / Frequency Range (MHz) 200KF1D / 2071.875 Max Great Circle Coordination Distance 220.0 km / 136.7 mi Precipitation Scatter Contour Radius 351.6 km / 218.5 mi Frequency Coordination and Interference Analysis Report 12/18/2018 Page 8 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values HARMON, GU Licensee Name Atlas Space Operations, Inc. Latitude (NAD 83) 13° 30' 48.8" N Longitude (NAD 83) 144° 49' 31.1" E Ground Elevation (AMSL) 72.02 m / 236.3 ft Antenna Centerline (AGL) 2.74 m / 9.0 ft Antenna Model Orbital 3.7 meter Antenna Mode Transmit 2.0 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power 0.0 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 80.22 4.50 220.00 5 0.00 82.84 4.50 220.00 10 0.00 85.51 4.50 220.00 15 0.00 88.20 4.50 220.00 20 0.00 90.90 4.50 220.00 25 0.00 93.59 4.50 220.00 30 0.00 96.26 4.50 220.00 35 0.00 98.91 4.50 220.00 40 0.00 101.50 4.50 220.00 45 0.00 104.02 4.50 220.00 50 0.00 106.46 4.50 220.00 55 0.00 108.81 4.50 220.00 60 0.00 111.03 4.50 220.00 65 0.00 113.12 4.50 220.00 70 0.00 115.06 4.50 220.00 75 0.00 116.81 4.50 220.00 80 0.00 118.38 4.50 220.00 85 0.00 119.72 4.50 220.00 90 0.00 120.83 4.50 220.00 95 0.00 121.70 4.50 220.00 100 0.00 122.29 4.50 220.00 105 0.00 122.62 4.50 220.00 110 0.00 122.67 4.50 220.00 115 0.00 122.43 4.50 220.00 120 0.00 121.93 4.50 220.00 125 0.00 121.15 4.50 220.00 130 0.00 120.12 4.50 220.00 135 0.00 118.85 4.50 220.00 140 0.00 117.36 4.50 220.00 145 0.00 115.67 4.50 220.00 150 0.00 113.79 4.50 220.00 155 0.00 111.75 4.50 220.00 160 0.00 109.57 4.50 220.00 165 0.00 107.26 4.50 220.00 170 0.00 104.85 4.50 220.00 175 0.00 102.35 4.50 220.00 180 0.00 99.78 4.50 220.00 185 0.00 97.16 4.50 220.00 Frequency Coordination and Interference Analysis Report 12/18/2018 Page 9 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values HARMON, GU Licensee Name Atlas Space Operations, Inc. Latitude (NAD 83) 13° 30' 48.8" N Longitude (NAD 83) 144° 49' 31.1" E Ground Elevation (AMSL) 72.02 m / 236.3 ft Antenna Centerline (AGL) 2.74 m / 9.0 ft Antenna Model Orbital 3.7 meter Antenna Mode Transmit 2.0 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power 0.0 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0.00 94.49 4.50 220.00 195 0.00 91.80 4.50 220.00 200 0.00 89.10 4.50 220.00 205 0.00 86.41 4.50 220.00 210 0.00 83.74 4.50 220.00 215 0.00 81.09 4.50 220.00 220 0.00 78.50 4.50 220.00 225 0.00 75.98 4.50 220.00 230 0.00 73.54 4.50 220.00 235 0.00 71.19 4.50 220.00 240 0.00 68.97 4.50 220.00 245 0.00 66.88 4.50 220.00 250 0.00 64.94 4.50 220.00 255 0.00 63.19 4.50 220.00 260 0.00 61.62 4.50 220.00 265 0.00 60.28 4.50 220.00 270 0.00 59.17 4.50 220.00 275 0.00 58.30 4.50 220.00 280 0.00 57.71 4.50 220.00 285 0.00 57.38 4.50 220.00 290 0.00 57.33 4.50 220.00 295 0.00 57.57 4.50 220.00 300 0.00 58.07 4.50 220.00 305 0.00 58.85 4.50 220.00 310 0.00 59.88 4.50 220.00 315 0.00 61.15 4.50 220.00 320 0.00 62.64 4.50 220.00 325 0.00 64.33 4.50 220.00 330 0.00 66.21 4.50 220.00 335 0.00 68.25 4.50 220.00 340 0.00 70.43 4.50 220.00 345 0.00 72.74 4.50 220.00 350 0.00 75.15 4.50 220.00 355 0.00 77.65 4.50 220.00 Frequency Coordination and Interference Analysis Report 12/18/2018 Page 10 of 11

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: December 18, 2018 Frequency Coordination and Interference Analysis Report 12/18/2018 Page 11 of 11


Document Created: 2018-12-18 10:13:59
Document Modified: 2018-12-18 10:13:59
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