Attachment C - Coordination

This document pretains to SES-MOD-20140717-00604 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2014071700604_1054358

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for DG Consents Sub, Inc. Rock Springs, Wyoming Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 July 15, 2014

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................ 3 2. SUMMARY OF RESULTS ............................................................................................................................ 4 3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5 4. EARTH STATION COORDINATION DATA .................................................................................................. 9 5. CERTIFICATION ......................................................................................................................................... 13 Frequency Coordination and Interference Analysis Report 07/15/2014 Page 2 of 13

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 07/15/2014 Page 3 of 13

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 None No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 07/15/2014 Page 4 of 13

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 emailed and sent to the below listed carriers with a letter dated May 14, 2014. Company 3G Wireless, LLC AERIAL VIDEO SYSTEMS AIRWAVES, INC America’s Cup Event Authority, LLC AT&T California Alascom Inc Ascent Media Network Services, LLC Bellsouth Telecommunications, Inc. Bonneville Holding Company Bonneville International Corporation Borgeson, Tom R. Brigham Young University Broadcast Sports Inc. CBS Television Stations CENTRAL WYOMING COLLEGE/PUBLIC TELEVISIO CNG Communications, Inc. Carolina Telephone and Telegraph Co Casper, John CenturyTel of the Southwest, Inc. Chicago Comnet Corp Cincinnati Bell Wireless LLC Circuit of the Americas, LLC Citywide News Network, Inc. Cohen, Elana Compass Communications of Idaho, Inc. Cowboys Stadium LP CP Communications, LLC DCI II, INC. Direct Broadcast Services, Inc. Entravision Holdings, LLC Excalibur Grand Junction LLC Express Lane Traffic LLC Fishman Brothers Enterprises GOODYEAR TIRE AND RUBBER COMPANY GRAY TELEVISION LICENSEE, INC. (KKCO) Frequency Coordination and Interference Analysis Report 07/15/2014 Page 5 of 13

Company (Continued) GSN New, Inc Global Microwave Systems Inc Gray Television Licensee LLC (Gray TV) Gray Television Licensee, LLC HF Enterprises, Inc Hallco Unlimited, Inc. Hawaiian Telcom, Inc. Heiden, William IRON COUNTY UTAH Idaho Broadcast Partners, LLC Illinois Bell Telephone Company Indiana Bell Telephone Company Information & Display Systems, Inc. Information Super Station, LLC International Communications Group, Inc. KRCA License LLC KSTU License, LLC KUTV Licensee, LLC Kentucky RSA #3 Cellular General Partner Kentucky RSA #4 Cellular General Partner Lancellotti, Inc Loop Inc. MERCURY COMMUNICATIONS Metro Networks Communications, Inc. Metrosat Communications Inc. Michigan Bell Telephone Company Microwave Video Systems, LLC Mission Broadcasting, Inc. Moreen, Steven K Multimedia Holdings Corporation NEW ENGLAND DIGITAL DISTRIBUTION, INC. NEW ENGLAND SATELLITE SYSTEMS INC NEXSTAR BROADCASTING, INC. NPG OF IDAHO, INC. NSM Surveillance Navajo Communications Company Neuhoff Family Limited Partnership New Rushmore Radio, Inc. NorthWest Suburbs Community Access Corp Ohio Bell Telephone Company On Scene Video Production Onboard Images Pacific Television Center Penn Service Microwave Co., Inc. Pikes Peak Radio, LLC Pikes Peak Television, Inc. Plateau Telecommunications, Inc. Plum Media, LLC Plum TV, LLC Production & Satellite Services, Inc. Public Television Communications Center Frequency Coordination and Interference Analysis Report 07/15/2014 Page 6 of 13

Company (Continued) QUICK LINK CONNECTIONS INC Qwest Corporation RCC Minnesota Inc. - MN NE ND SD REMOTE FACILITIES CONSULTING SERVICES RF Central, LLC RF Film, Inc RF Technology, LLC Radiofone, Inc. Randy Hermes Production Regulus Media Services, Inc. Remote Broadcasts, Inc. Rocky Mountain Public Broadcasting Netwo Rushmore Media Company, Inc SILVERTON BROADCASTING COMPANY, LLC SILVERTON BROADCASTING COMPANY, LLC Scripps Media, Inc. - KMGH TV Southwestern Bell Telephone L.P. Speedshotz, Inc Steinert, Christine Telemovil del Caribe Inc. Total RF Marketing Inc Tribune Broadcasting Denver License, LLC Unisat, Inc. United Telephone - Southeast VERIZON SOUTH INC. Verizon California Inc. Verizon Maryland, Inc. Verizon New England Inc. Verizon New Jersey, Inc. Verizon New York, Inc. Verizon North Inc. Verizon Northwest Inc. Verizon Pennsylvania, Inc. Verizon Virginia, Inc. Verizon Washington DC, Inc. Village Video Productions Inc Vistawest Media, LLC Vyvx, LLC Westar Satellite Services LP Western Technical Services Wexler Video, Inc. Winged Vision Inc Wisconsin Bell, Inc. Wolfe Air Aviation Yellowstone Licenseco LLC Frequency Coordination and Interference Analysis Report 07/15/2014 Page 7 of 13

Society of Broadcast Engineers (SBE) Utah – SLC Region (Mr. John Dehnel) Wyoming – Entire State (Mr. Robert Spain) Idaho - SW Region (Mr. Jeff Hoffert) Idaho – SE Region (Mr. David Turnmire) Idaho – So. Central Region (Mr. Thomas Lowther) Colorado – Front Range (Mr. James Schoedler) Colorado – Western Slope (Mr. Robert Bowe) Nevada – Reno Region (Mr. Steve Weber) Montana – Billings Area (Mr. Randall Rocks) Frequency Coordination and Interference Analysis Report 07/15/2014 Page 8 of 13

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 07/15/2014 Page 9 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 07/15/2014 Job Number: 140514COMSJC06 Administrative Information Status ENGINEER PROPOSAL Call Sign E120040 Licensee Code DBCONS Licensee Name DG Consents Sub, Inc. Site Information ROCK SPRINGS, WYOMING Venue Name Latitude (NAD 83) 41° 32' 12.0" N Longitude (NAD 83) 109° 21' 11.0" W Climate Zone A Rain Zone 5 Ground Elevation (AMSL) 1889.76 m / 6200.0 ft Link Information Satellite Type Low Earth Orbit Mode TO - Transmit-Only Modulation Analog and Digital Minimum Elevation Angle 5.0° Azimuth Range 0.0° to 360° Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Transmit Manufacturer ViaSat Model 3420 Gain / Diameter 41.0 dBi / 7.3 m 3-dB / 15-dB Beamwidth 1.54° / 2.90° N0N 68K0G2D 1M32G1D Max Available RF Power (dBW/4 kHz) 20.0 7.7 -5.2 (dBW/MHz) 44.0 31.7 18.8 Maximum EIRP (dBW/4 kHz) 61.0 48.7 35.8 (dBW/MHz) 85.0 72.7 59.8 (dBW) 61.0 61.0 61.0 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 / 2042.0 68K0G2D / 2042.0 N0N / 2052.0 68K0G2D / 2052.0 1M32G1D / 2052.0 1M32G1D / 2085.6875 N0N / 2092.6 1M32G1D / 2092.6 Max Great Circle Coordination Distance 470.8 km / 292.5 mi Precipitation Scatter Contour Radius 319.6 km / 198.6 mi Frequency Coordination and Interference Analysis Report 07/15/2014 Page 10 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values ROCK SPRINGS, WY Licensee Name DG Consents Sub, Inc. Latitude (NAD 83) 41° 32' 12.0" N Longitude (NAD 83) 109° 21' 11.0" W Ground Elevation (AMSL) 1889.76 m / 6200.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model ViaSat 3420 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 20.0 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 77.90 9.00 470.80 5 0.00 73.30 9.00 470.80 10 0.00 68.72 9.00 470.80 15 0.00 64.18 9.00 470.80 20 0.00 59.67 9.00 470.80 25 0.00 55.21 9.00 470.80 30 0.00 50.82 9.00 470.80 35 0.00 46.51 9.00 470.80 40 0.00 42.32 9.00 470.80 45 0.00 38.28 9.00 470.80 50 0.00 34.46 9.00 470.80 55 0.00 30.92 9.00 470.80 60 0.00 27.79 9.00 470.80 65 0.00 25.22 9.00 470.80 70 0.00 23.39 9.00 470.80 75 0.00 22.48 9.00 470.80 80 0.00 22.60 9.00 470.80 85 0.00 23.75 9.00 470.80 90 0.00 25.78 9.00 470.80 95 0.00 28.51 9.00 470.80 100 0.00 31.75 9.00 470.80 105 0.00 35.36 9.00 470.80 110 0.00 39.25 9.00 470.80 115 0.00 43.33 9.00 470.80 120 0.00 47.55 9.00 470.80 125 0.00 51.88 9.00 470.80 130 0.00 56.29 9.00 470.80 135 0.00 60.76 9.00 470.80 140 0.00 65.28 9.00 470.80 145 0.00 69.84 9.00 470.80 150 0.00 74.42 9.00 470.80 155 0.00 79.02 9.00 470.80 160 0.00 83.63 9.00 470.80 165 0.00 88.25 9.00 470.80 170 0.00 92.87 9.00 470.80 175 0.00 97.49 9.00 470.80 180 0.00 102.10 9.00 470.80 Frequency Coordination and Interference Analysis Report 07/15/2014 Page 11 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values ROCK SPRINGS, WY Licensee Name DG Consents Sub, Inc. Latitude (NAD 83) 41° 32' 12.0" N Longitude (NAD 83) 109° 21' 11.0" W Ground Elevation (AMSL) 1889.76 m / 6200.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model ViaSat 3420 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 20.0 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 185 0.00 106.70 9.00 470.80 190 0.00 111.28 9.00 470.80 195 0.00 115.82 9.00 470.80 200 0.00 120.33 9.00 470.80 205 0.00 124.79 9.00 470.80 210 0.00 129.18 9.00 470.80 215 0.00 133.49 9.00 470.80 220 0.00 137.68 9.00 470.80 225 0.00 141.72 9.00 470.80 230 0.00 145.54 9.00 470.80 235 0.00 149.08 9.00 470.80 240 0.00 152.21 9.00 470.80 245 0.00 154.78 9.00 470.80 250 0.00 156.62 9.00 470.80 255 0.00 157.52 9.00 470.80 260 0.00 157.40 9.00 470.80 265 0.00 156.25 9.00 470.80 270 0.00 154.22 9.00 470.80 275 0.00 151.49 9.00 470.80 280 0.00 148.25 9.00 470.80 285 0.00 144.64 9.00 470.80 290 0.00 140.75 9.00 470.80 295 0.00 136.68 9.00 470.80 300 0.00 132.45 9.00 470.80 305 0.00 128.12 9.00 470.80 310 0.00 123.71 9.00 470.80 315 0.00 119.24 9.00 470.80 320 0.00 114.72 9.00 470.80 325 0.00 110.16 9.00 470.80 330 0.00 105.58 9.00 470.80 335 0.00 100.98 9.00 470.80 340 0.00 96.37 9.00 470.80 345 0.00 91.75 9.00 470.80 350 0.00 87.13 9.00 470.80 355 0.00 82.51 9.00 470.80 Frequency Coordination and Interference Analysis Report 07/15/2014 Page 12 of 13

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. Jeffrey E. Cowles Engineer III, Telecommunications COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: July 15, 2014 Frequency Coordination and Interference Analysis Report 07/15/2014 Page 13 of 13


Document Created: 2014-07-16 09:55:18
Document Modified: 2014-07-16 09:55:18
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