Attachment Exhibit A

This document pretains to SES-STA-INTR2019-03146 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTAINTR201903146_1877516

Exhibit A FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Intelsat License LLC HAGERSTOWN, MD Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 July 02, 2019

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................ 3 2. SUMMARY OF RESULTS ............................................................................................................................ 4 3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5 4. EARTH STATION COORDINATION DATA .................................................................................................. 8 5. CERTIFICATION ......................................................................................................................................... 12 Frequency Coordination and Interference Analysis Report 07/02/2019 Page 2 of 12

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 07/02/2019 Page 3 of 12

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-receive earth station. Company State of Maryland MIEMSS Communications USCOC of Cumberland, Inc. Washington Gas Light Company WV DHSEM, SIRN System No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 07/02/2019 Page 4 of 12

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 06/03/2019. Company Adams County Department of Emergency Svc Affiniti PA, LLC Anne Arundel, County of Appalachia Engineering Services AQ2AT LLC Argos Engineering, LLC AT&T Corp. Atlantic Broadband (Penn), LLC Atlantic City Electric Company Atlantic Coast Pipeline, LLC Baltimore County of Maryland Baltimore Gas and Electric Company Beaver Springs Faith Baptist Church, Inc Bedford County of Believe Wireless, LLC Blair County 911 Calvert Cliffs Nuclear Power Plant Calvert, County of Cambria, County of Capital Communications of America Carroll, County of Cellco Partnership - Bridgeville, PA/WV Cellco Partnership-WDC/Baltimore Cellco Prtnrshp - Phil. Tri-State Rgn Charles, County of Chester, County of Columbia Gas Transmission, LLC Commonwealth of Pennsylvania Commonwealth of Pennsylvania-Radio Proj. Comprehensive Wireless LLC County of Centre County of Culpeper County of Fayette County of Fayette County of Frederick County of Orange, VA County of York Cumberland, County of (PA) Dauphin County Emergency Management DC2A LLC Frequency Coordination and Interference Analysis Report 07/02/2019 Page 5 of 12

Delaware Division of Communications Delmarva Power and Light Company Dominion Energy Transmission, Inc. Eastern MLG LLC Egan LLC Enoch Pratt Free Library Entercom License, LLC Equitable Gas Company Exelon Generation Company, LLC FELHC, Inc. Franklin County Dept. of Emergency Servi Fulton County PA Fundamental Broadcasting LLC Garden State Transmissions GEORGE WASHINGTON UNIVERSITY Getwireless.Net GTT America LLC Hardy Cellular Telephone Company Hardy County OEM/E911 Harrison County Emergency Services Harrisonburg-Rockingham ECC Hearst Properties Inc. High Voltage Communications LLC (CFN) Howard, County of Huntingdon, County of iSignal Juniata County Emergency Services Lancaster County-Wide Communications Lebanon, County of Loudoun, County of Maryland Public Broadcasting Commission Maryland State Dept of General Services Maryland State Highway Administration Maryland, State of - Dept.of Info & Tech Maryland, State of - DNR Maryland, State of - MDOT-MTA MCI Communications Services Inc. Mifflin County Mifflin County Montgomery, County of Morgan, County of Mountain State Communications, llc New Cingular Wireless PCS - Maryland New Cingular Wireless PCS LLC - DC New Cingular Wireless PCS LLC - VA New Cingular Wireless PCS LLC - WV,NC,SC New Cingular Wireless PCS, LLC - PA New Jersey, State of -NJ Transit New Line Networks, LLC Norfolk Southern Railway Peco Energy Company Pennsylvania Sports Entertainment Netwo. Pennsylvania State Police Pennsylvania Turnpike Commission Perry, County of Pittsburgh SMSA Limited Partnership Frequency Coordination and Interference Analysis Report 07/02/2019 Page 6 of 12

Potomac Electric Power Company Preston County Office of Emergency Manag Prince George's County Prince William, County of PSEG Services Corporation Radio License Holding CBC, LLC Radio One Inc Rappahannock Electric Cooperative RCYM Holdings LLC Redi-Call Communications Company Rural Broadband, LLC Secom Net Shenandoah Personal Communications, LLC Shenandoah Valley Electric Cooperative Snyder, County of Somerset, County of South Central Task Force (SCTFNET) Southern Maryland Electric Cooperative I Stafford, County of State of Maryland MIEMSS Communications Texas Eastern Communications, LLC Thought Transmissions, LLC T-Mobile License LLC Transcontinental Gas Pipeline Corp. Triangle Communications, Inc. Uniti Fiber PEG, LLC Ursa Navigation Solutions, Inc. US Cellular Operating Company, LLC (WI) USCOC of Cumberland, Inc. USOC of Pennsylvania RSA No 10 B2 Inc. Verizon Wireless (VAW) LLC - Maryland Verizon Wireless (VAW) LLC - W/B/V Mkts Verizon Wireless (VAW) LLC-Pennsylvania Virginia Department of State Police Virginia Electric & Power Company Warrenton Fauquier Joint Communications Washington Gas Light Company Washington Suburban Sanitary Commission Westmoreland, County of Williamson Enterprise LLC Wireless Internetwork LLC World Class Wireless, LLC WV DHSEM, SIRN System Frequency Coordination and Interference Analysis Report 07/02/2019 Page 7 of 12

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 07/02/2019 Page 8 of 12

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 07/02/2019 Job Number: 190603COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code INTELS Licensee Name Intelsat License LLC Site Information HAGERSTOWN, MD Venue Name Latitude (NAD 83) 39° 35' 54.8" N Longitude (NAD 83) 77° 45' 18.6" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 168.65 m / 553.3 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 6° W to 149° West Longitude Azimuth Range 101.9° to 257.8° Corresponding Elevation Angles 5.3° / 5.7° Antenna Centerline (AGL) 5.79 m / 19.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Gen Dynamics Gen Dynamics Model Satcom Satcom Gain / Diameter 53.0 dBi / 13.1 m 56.6 dBi / 13.1 m 3-dB / 15-dB Beamwidth 0.38° / 0.76° 0.26° / 0.52° Max Available RF Power (dBW/4 kHz) (1) -11.8 (2) -2.6 (dBW/MHz) 12.2 Maximum EIRP (dBW/4 kHz) 44.8 54.0 (dBW/MHz) 68.8 78.0 Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Frequency Information Receive 4.0 GHz Transmit 6.1 GHz Emission / Frequency Range (MHz) 500KG7D - 72M0G7W / 3400.0 - 4200.0 (1) 6M00F7W - 72M0G7W / 5850.0 - 6425.0 500KG7D - 72M0F7W / 3400.0 - 4200.0 6425.0 – 6538.0, 6572.0 – 6583.0, 6622.0 – 6628.0 6701.0 – 6725.0 (1) 1M00F7D – 1M50F7D / 6172.0 – 6178.0 (2) 1M00F7D – 1M50F7D / 5924.0 – 5927.5, 6414.25 – 6425.25 Max Great Circle Coordination Distance 714.8 km / 444.1 mi 334.7 km / 208.0 mi Precipitation Scatter Contour Radius 613.5 km / 381.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 07/02/2019 Page 9 of 12

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values HAGERSTOWN, MD Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 35' 54.8" N Longitude (NAD 83) 77° 45' 18.6" W Ground Elevation (AMSL) 168.65 m / 553.3 ft Antenna Centerline (AGL) 5.79 m / 19.0 ft Antenna Model Gen Dynamics 13.1 meter Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -11.8 (dBW/4 kHz) Receive 4.0 GHz Transmit 6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.26 101.82 -10.00 278.03 -10.00 134.03 5 0.23 96.84 -10.00 282.07 -10.00 135.50 10 0.21 91.86 -10.00 283.43 -10.00 136.42 15 0.00 86.88 -10.00 285.28 -10.00 137.70 20 0.22 81.90 -10.00 283.11 -10.00 136.21 25 0.00 76.93 -10.00 285.28 -10.00 137.70 30 0.00 71.95 -10.00 285.28 -10.00 137.70 35 0.23 66.96 -10.00 281.82 -10.00 135.32 40 0.00 62.00 -10.00 285.28 -10.00 137.70 45 0.00 57.03 -10.00 285.28 -10.00 137.70 50 0.00 52.06 -10.00 285.28 -10.00 137.70 55 0.00 47.10 -9.82 286.40 -9.82 138.21 60 0.00 42.14 -8.62 294.22 -8.62 141.83 65 0.00 37.19 -7.26 303.29 -7.26 146.09 70 0.00 32.26 -5.72 314.61 -5.72 151.23 75 0.00 27.35 -3.92 327.40 -3.92 157.55 80 0.00 22.47 -1.79 343.07 -1.79 165.56 85 0.00 17.66 0.83 362.97 0.83 177.36 90 0.00 12.98 4.17 388.85 4.17 190.25 95 0.00 8.67 8.55 426.04 8.55 205.38 100 0.00 5.62 13.26 714.76 13.26 334.72 105 0.00 6.15 12.27 528.20 12.27 243.34 110 0.00 9.60 7.45 416.38 7.45 202.80 115 0.00 13.27 3.93 387.53 3.93 189.33 120 0.00 16.89 1.31 366.72 1.31 179.23 125 0.00 20.41 -0.75 350.91 -0.75 171.25 130 0.00 23.83 -2.43 338.33 -2.43 163.11 135 0.00 27.11 -3.83 328.09 -3.83 157.89 140 0.00 30.23 -5.01 319.61 -5.01 153.67 145 0.00 33.14 -6.01 311.94 -6.01 150.23 150 0.00 35.82 -6.85 306.10 -6.85 147.43 155 0.00 38.20 -7.55 301.33 -7.55 145.16 160 0.00 40.26 -8.12 297.51 -8.12 143.36 165 0.00 41.93 -8.56 294.59 -8.56 142.00 170 0.00 43.16 -8.88 292.52 -8.88 141.03 175 0.00 43.92 -9.07 291.29 -9.07 140.46 180 0.00 44.18 -9.13 290.88 -9.13 140.27 185 0.00 43.92 -9.07 291.28 -9.07 140.46 Frequency Coordination and Interference Analysis Report 07/02/2019 Page 10 of 12

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values HAGERSTOWN, MD Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 35' 54.8" N Longitude (NAD 83) 77° 45' 18.6" W Ground Elevation (AMSL) 168.65 m / 553.3 ft Antenna Centerline (AGL) 5.79 m / 19.0 ft Antenna Model Gen Dynamics 13.1 meter Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -11.8 (dBW/4 kHz) Receive 4.0 GHz Transmit 6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 43.16 -8.88 292.52 -8.88 141.03 195 0.00 41.93 -8.56 294.59 -8.56 142.00 200 0.00 40.26 -8.12 297.51 -8.12 143.36 205 0.00 38.20 -7.55 301.32 -7.55 145.16 210 0.00 35.81 -6.85 306.10 -6.85 147.43 215 0.21 32.98 -5.96 311.25 -5.96 149.62 220 0.00 30.22 -5.01 319.62 -5.01 153.68 225 0.26 26.92 -3.75 320.23 -3.75 151.63 230 0.30 23.62 -2.33 325.81 -2.33 152.98 235 0.00 20.42 -0.75 350.90 -0.75 171.24 240 0.00 16.89 1.31 366.75 1.31 179.24 245 0.24 13.11 4.06 382.65 4.06 185.18 250 0.25 9.42 7.65 410.95 7.65 198.33 255 0.27 6.09 12.38 536.32 12.38 245.35 260 0.30 5.82 12.87 690.10 12.87 321.20 265 0.28 9.01 8.13 412.05 8.13 197.94 270 0.29 13.34 3.87 374.63 3.87 179.26 275 0.30 18.01 0.61 347.75 0.61 163.78 280 0.28 22.83 -1.96 330.80 -1.96 156.06 285 0.21 27.72 -4.07 325.29 -4.07 156.19 290 0.00 32.66 -5.85 313.67 -5.85 150.77 295 0.00 37.58 -7.38 302.52 -7.38 145.73 300 0.00 42.52 -8.72 293.58 -8.72 141.52 305 0.24 47.45 -9.91 280.72 -9.91 134.44 310 0.00 52.43 -10.00 285.28 -10.00 137.70 315 0.00 57.40 -10.00 285.28 -10.00 137.70 320 0.00 62.36 -10.00 285.28 -10.00 137.70 325 0.00 67.33 -10.00 285.28 -10.00 137.70 330 0.23 72.30 -10.00 281.61 -10.00 135.18 335 0.28 77.27 -10.00 275.05 -10.00 132.04 340 0.28 82.25 -10.00 274.82 -10.00 131.89 345 0.22 87.23 -10.00 282.80 -10.00 135.99 350 0.21 92.20 -10.00 283.72 -10.00 136.62 355 0.29 97.18 -10.00 274.21 -10.00 131.48 Frequency Coordination and Interference Analysis Report 07/02/2019 Page 11 of 12

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 02, 2019 Frequency Coordination and Interference Analysis Report 07/02/2019 Page 12 of 12


Document Created: 2019-08-29 17:00:27
Document Modified: 2019-08-29 17:00:27
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