Attachment Exhibit A

This document pretains to SES-STA-INTR2019-02401 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTAINTR201902401_1729550

Exhibit A Prepared By COMSEARCH 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Prepared For Intelsat License LLC Castle Rock, Colorado Temporary Transmit-Only Earth Station Operation Dates: 06/01/2019 – 09/01/2019 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. Verbal and written coordination was conducted with the below listed carriers on May 5, 2019. Company AC BidCO LLC AT&T Mobility Spectrum LLC - CO AT&T Mobility Spectrum LLC - KS, MO AirLife Denver Arvada Police Dept. BNSF Railway Company Black Hawk Police Department Black Hills Power and Light Boulder, County of CBS Communications Services Inc CBS Television Stations Cellular Inc. Network Corporation City of Aurora City of Colorado Springs City of Lakewood, CO Colorado Interstate Gas Company Colorado RSA No. 3 Limited Partnership Colorado Springs Utilities County of Pueblo Denver, City and County of Douglas County Sheriff's Office (CO) Elbert County Communications Authority Entravision Holdings, LLC Federal Communication Commission Fones West Digital Systems Inc. Gilpin County Sheriff's Office Gray Television Licensee, LLC Grazi Communications, LLC Industrial Tower and Wireless, LLC Intermountain Rural Electric Association KSE Radio Ventures, LLC Kellin Communications LP Broadband, Inc. Live Wire Networks, Inc. MHO Networks Midwest Energy, Inc. Frequency Coordination and Interference Analysis Report 05/17/2019 Page 1 of 6

Mountain Broadband LLC Mountain View Electric Assocation, Inc. NE Colorado Cellular, Inc. New Cingular Wireless PCS LLC -Colorado Nex-Tech Wireless, LLC Nucla Naturita Telephone Company Olympic Wireless, LLC Qwest Corporation Roggen Enterprises Broadband LLC Sangre de Cristo Communications, LLC Sprint Communications Company, LP Sprint Spectrum L.P. Sprint Spectrum LP DBA Sprint PCS State of Colorado T-Mobile License LLC Tallgrass Operations, LLC Tri-State Generation & Transmission Assn Tribune Broadcasting Denver License, LLC University Corp for Atmospheric Research Verizon Wireless (VAW) LLC -CO/ID/MT/WY Xcel Energy Services, Inc. Y-W Electric Association, Inc There are no unresolved interference objections with the station contained in these applications. The following section presents the data pertinent to frequency coordination of the earth station that was circulated to all carriers within its coordination contours. Frequency Coordination and Interference Analysis Report 05/17/2019 Page 2 of 6

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 05/02/2019 Job Number: 190502COMSGE02 Administrative Information Status TEMPORARY (Operation from 06/01/2019 to 09/01/2019) Call Sign TEMP09 Licensee Code INTELS Licensee Name Intelsat License LLC Site Information CASTLE ROCK, CO Venue Name Latitude (NAD 83) 39° 16' 33.0" N Longitude (NAD 83) 104° 48' 34.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 2088.0 m / 6850.4 ft Link Information Satellite Type Geostationary Mode TO - Transmit-Only Modulation Digital Satellite Arc 33° W to 177° West Longitude Azimuth Range 101.8° to 258.5° Corresponding Elevation Angles 5.3° / 5.0° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Transmit - FCC32 Manufacturer Vertex Model 9.0 FMC Gain / Diameter 53.8 dBi / 9.0 m 3-dB / 15-dB Beamwidth 0.20° / 0.40° Max Available RF Power (dBW/4 kHz) 3.0 (dBW/MHz) 27.0 Maximum EIRP (dBW/4 kHz) 56.8 (dBW/MHz) 80.8 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) 1M00F2D / 5926.5 1M00F2D / 6423.5 Max Great Circle Coordination Distance 470.8 km / 292.5 mi Precipitation Scatter Contour Radius 270.9 km / 168.3 mi Frequency Coordination and Interference Analysis Report 05/17/2019 Page 3 of 6

Coordination Values CASTLE ROCK, CO Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 16' 33.0" N Longitude (NAD 83) 104° 48' 34.0" W Ground Elevation (AMSL) 2088.0 m / 6850.4 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Vertex 9 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 3.0 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 5.33 101.50 -10.00 100.00 5 4.79 96.75 -10.00 100.00 10 3.89 91.75 -10.00 100.00 15 4.01 86.75 -10.00 100.00 20 3.85 81.76 -10.00 100.00 25 3.58 76.76 -10.00 100.00 30 3.74 71.76 -10.00 100.00 35 3.35 66.77 -10.00 100.00 40 2.87 61.78 -10.00 100.00 45 2.58 56.80 -10.00 100.00 50 2.50 51.81 -10.00 100.30 55 1.71 46.86 -9.77 118.23 60 1.36 41.91 -8.56 131.09 65 0.54 37.02 -7.21 171.22 70 0.00 32.15 -5.68 207.57 75 0.00 27.24 -3.88 214.78 80 0.00 22.36 -1.74 223.86 85 0.00 17.56 0.89 235.75 90 0.00 12.89 4.25 251.54 95 0.23 8.45 8.82 273.41 100 0.00 5.60 13.29 458.50 105 0.00 6.23 12.13 334.37 110 0.00 9.71 7.32 268.11 115 0.28 13.21 3.97 242.14 120 0.36 16.79 1.37 221.68 125 0.30 20.38 -0.73 217.92 130 0.52 23.66 -2.35 193.71 135 0.43 27.02 -3.79 195.52 140 0.55 30.04 -4.94 180.55 145 1.02 32.60 -5.83 149.37 150 1.54 34.84 -6.55 133.57 155 1.39 37.33 -7.30 133.51 160 1.46 39.28 -7.85 130.93 165 1.44 40.92 -8.30 129.88 170 1.53 42.03 -8.59 126.65 175 1.93 42.37 -8.68 116.70 180 2.33 42.21 -8.64 108.59 185 2.57 41.73 -8.51 104.18 Frequency Coordination and Interference Analysis Report 05/17/2019 Page 4 of 6

Coordination Values CASTLE ROCK, CO Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 16' 33.0" N Longitude (NAD 83) 104° 48' 34.0" W Ground Elevation (AMSL) 2088.0 m / 6850.4 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Vertex 9 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 3.0 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 2.96 40.65 -8.23 100.00 195 3.16 39.31 -7.86 100.00 200 3.18 37.74 -7.42 100.00 205 2.89 36.04 -6.92 103.85 210 2.65 33.93 -6.26 110.83 215 2.70 31.28 -5.38 113.12 220 3.32 27.95 -4.16 106.36 225 3.28 24.91 -2.91 111.79 230 3.48 21.53 -1.32 114.41 235 3.42 18.19 0.50 122.28 240 3.40 14.71 2.81 131.21 245 3.51 11.04 5.93 140.34 250 3.53 7.37 10.31 160.63 255 3.67 3.54 18.28 287.11 260 3.61 2.06 24.13 470.77 265 3.77 6.62 11.48 161.17 270 3.98 11.54 5.44 131.24 275 4.00 16.53 1.54 115.96 280 4.02 21.52 -1.32 105.04 285 4.64 26.50 -3.58 100.00 290 5.69 31.50 -5.46 100.00 295 5.86 36.51 -7.06 100.00 300 5.20 41.50 -8.45 100.00 305 5.01 46.50 -9.69 100.00 310 5.30 51.50 -10.00 100.00 315 5.39 56.50 -10.00 100.00 320 4.95 61.50 -10.00 100.00 325 4.63 66.50 -10.00 100.00 330 4.54 71.50 -10.00 100.00 335 4.47 76.50 -10.00 100.00 340 5.31 81.50 -10.00 100.00 345 5.69 86.50 -10.00 100.00 350 5.73 91.50 -10.00 100.00 355 5.67 96.50 -10.00 100.00 Frequency Coordination and Interference Analysis Report 05/17/2019 Page 5 of 6

Certification I hereby certify that I am the technically qualified person responsible for the preparation of the frequency coordination data contained in this report. I am familiar with Parts 101 and 25 of the FCC Rules and Regulations and I have either prepared or reviewed the frequency coordination data submitted with this report, 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: October 22, 2018 Frequency Coordination and Interference Analysis Report 05/17/2019 Page 6 of 6


Document Created: 2019-05-17 15:19:05
Document Modified: 2019-05-17 15:19:05
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