Attachment Coordination Report

This document pretains to SES-MOD-20181105-03445 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2018110503445_1568226

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for DG Consents Sub, Inc. FAIRBANKS, AK Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 September 20, 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 09/20/2018 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 09/20/2018 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. 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-only earth station. Company <Companies Responding with Cases> No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 09/20/2018 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 07/23/2018. Company 3G Wireless, LLC AERIAL VIDEO SYSTEMS Alascom Inc Alaska Public Telecommunications, Inc. Borgeson, Tom R. Broadcast Sports Inc. Casper, John Chicago Comnet Corp Citywide News Network, Inc. Coastal Television Broadcasting Company Cowboys Stadium LP CP Communications, LLC DCI II, INC. Denali Media Anchorage, Corp Direct Broadcast Services, Inc. Frontier California Inc. Gray Televions Licensee, LLC ( KTVF) Gray Television Licensee, LLC HF Enterprises, Inc Hallco Unlimited, Inc. Heiden, William im360 Entertainment Information & Display Systems, Inc. Information Super Station, LLC International Communications Group, Inc. International Electronic Information Services, Inc Interlink Network Corp Loop Inc MERCURY COMMUNICATIONS Microwave Video Systems, LLC Moreen, Steven K NEW ENGLAND DIGITAL DISTRIBUTION, INC. NSM Surveillance Navajo Communications Company Onboard Images Penn Service Microwave Co., Inc. Plateau Telecommunications, Inc. Plum TV, LLC Production & Satellite Services, Inc. REMOTE FACILITIES CONSULTING SERVICES RF Central, LLC Frequency Coordination and Interference Analysis Report 09/20/2018 Page 5 of 11

RF Film, Inc Radiofone, Inc. Randy Hermes Production Remote Broadcasts, Inc. SBE Coordinator Speedshotz, Inc TTWN Networks, LLC Unisat, Inc. United Telephone - Southeast Vision Alaska I LLC Vitec Broadcast Services, Inc Vyvx, LLC Westar Satellite Services LP Winged Vision Inc Wolfe Air Aviation Frequency Coordination and Interference Analysis Report 09/20/2018 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 09/20/2018 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 09/20/2018 Job Number: 180723COMSGE03 Administrative Information Status ENGINEER PROPOSAL Call Sign E950499 Licensee Code DBCONS Licensee Name DG Consents Sub, Inc. Site Information FAIRBANKS, AK Venue Name Latitude (NAD 83) 64° 53' 26.0" N Longitude (NAD 83) 147° 31' 44.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 215.0 m / 705.4 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) 3.66 m / 12.0 ft Antenna Information Transmit - FCC32 Manufacturer Viasat Model V8 Gain / Diameter 36.6 dBi / 5.4 m 3-dB / 15-dB Beamwidth 1.69° / 3.38° Max Available RF Power (dBW/4 kHz) 14.4 (dBW/MHz) 38.4 Maximum EIRP (dBW/4 kHz) 51.0 (dBW/MHz) 75.0 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) N0N / 2052.0 1M32G1D / 2051.34 - 2052.66 1M32G1D / 2085.0273 - 2086.3475 1M32G1D / 2085.6875 1M32G1D / 2091.94 - 2093.26 N0N / 2092.6 N0N / 2042.0 Max Great Circle Coordination Distance 534.0 km / 331.8 mi Precipitation Scatter Contour Radius 477.5 km / 296.7 mi Frequency Coordination and Interference Analysis Report 09/20/2018 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 FAIRBANKS, AK Licensee Name DG Consents Sub, Inc. Latitude (NAD 83) 64° 53' 26.0" N Longitude (NAD 83) 147° 31' 44.0" W Ground Elevation (AMSL) 215.0 m / 705.4 ft Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Model Viasat 5.4 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 14.4 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0 0 7.00 534.00 5 0 0 7.00 534.00 10 0 0 7.00 534.00 15 0 0 7.00 534.00 20 0 0 7.00 534.00 25 0 0 7.00 534.00 30 0 0 7.00 534.00 35 0 0 7.00 534.00 40 0 0 7.00 534.00 45 0 0 7.00 534.00 50 0 0 7.00 534.00 55 0 0 7.00 534.00 60 0 0 7.00 534.00 65 0 0 7.00 534.00 70 0 0 7.00 534.00 75 0 0 7.00 534.00 80 0 0 7.00 534.00 85 0 0 7.00 534.00 90 0 0 7.00 534.00 95 0 0 7.00 534.00 100 0 0 7.00 534.00 105 0 0 7.00 534.00 110 0 0 7.00 534.00 115 0 0 7.00 534.00 120 0 0 7.00 534.00 125 0 0 7.00 534.00 130 0 0 7.00 534.00 135 0 0 7.00 534.00 140 0 0 7.00 534.00 145 0 0 7.00 534.00 150 0 0 7.00 534.00 155 0 0 7.00 534.00 160 0 0 7.00 534.00 165 0 0 7.00 534.00 170 0 0 7.00 534.00 175 0 0 7.00 534.00 180 0 0 7.00 534.00 185 0 0 7.00 534.00 Frequency Coordination and Interference Analysis Report 09/20/2018 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 FAIRBANKS, AK Licensee Name DG Consents Sub, Inc. Latitude (NAD 83) 64° 53' 26.0" N Longitude (NAD 83) 147° 31' 44.0" W Ground Elevation (AMSL) 215.0 m / 705.4 ft Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Model Viasat 5.4 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 14.4 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0 0 7.00 534.00 195 0 0 7.00 534.00 200 0 0 7.00 534.00 205 0 0 7.00 534.00 210 0 0 7.00 534.00 215 0 0 7.00 534.00 220 0 0 7.00 534.00 225 0 0 7.00 534.00 230 0 0 7.00 534.00 235 0 0 7.00 534.00 240 0 0 7.00 534.00 245 0 0 7.00 534.00 250 0 0 7.00 534.00 255 0 0 7.00 534.00 260 0 0 7.00 534.00 265 0 0 7.00 534.00 270 0 0 7.00 534.00 275 0 0 7.00 534.00 280 0 0 7.00 534.00 285 0 0 7.00 534.00 290 0 0 7.00 534.00 295 0 0 7.00 534.00 300 0 0 7.00 534.00 305 0 0 7.00 534.00 310 0 0 7.00 534.00 315 0 0 7.00 534.00 320 0 0 7.00 534.00 325 0 0 7.00 534.00 330 0 0 7.00 534.00 335 0 0 7.00 534.00 340 0 0 7.00 534.00 345 0 0 7.00 534.00 350 0 0 7.00 534.00 355 0 0 7.00 534.00 Frequency Coordination and Interference Analysis Report 09/20/2018 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: September 20, 2018 Frequency Coordination and Interference Analysis Report 09/20/2018 Page 11 of 11


Document Created: 2018-11-02 06:48:37
Document Modified: 2018-11-02 06:48:37
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