Attachment Exhibit B

This document pretains to SES-MFS-20190503-00560 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2019050300560_1672672

Exhibit B 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 April 17, 2019

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 04/17/2019 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 04/17/2019 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 04/17/2019 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 04/03/2019. Company APC Realty and Equipment CO LLC Adams County Department of Emergency Svc Affiniti PA, LLC Allegany County Government Altius Communications American Type Culture Collection Arlington County, VA B.F. SAUL COMPANY Believe Wireless, LLC Blaze Broadband Boeing Company Business Information Group, Inc. Business Only Broadband, LLC CBS Television Licenses LLC Calvert County Government Calvert, County of Cambria, County of Camp Hill School District Cape May County, MIS Department Carlisle Area School District Chesapeake Television Licensee, LLC City of Altoona City of Lebanon Authority Clearwire Spectrum Holdings III, LLC Commissioners of Caroline County Conxx, Inc. Cumberland County, New Jersey Cumberland Valley School District Delaware River & Bay Authority Delmarva Power and Light Company Double Dog Communications, Inc East Pennsboro Area School Eastern Lancaster County School District Enoch Pratt Free Library Entercom License, LLC Franklin County Dept. of Emergency Servi Getwireless.Net Glenville State University Global Telecom & Technology Americas Halifax Area School District Harrison County Emergency Services Frequency Coordination and Interference Analysis Report 04/17/2019 Page 5 of 11

Home Sales Company, Inc Lancaster General Hospital Loudoun, County of MLS Engineering Maryland Port Administration Maryland, State of - MDOT-MTA Maryland-National Capital Park & Plannin Montgomery, County of NBC Telemundo License LLC NEXSTAR BROADCASTING, INC. New Cingular Wireless PCS LLC - AZ New Cingular Wireless PCS - Maryland New Cingular Wireless PCS, LLC - PA Northern York County School District Pdp Group, Inc. Pennsylvania Turnpike Commission PhillieCo, L.P. Prince William, County of R. Fritz Enterprises Inc Radio One Inc RapidDSL & Wireless, Inc. Red Rose Transit Authority Rural Broadband Network Services LLC Shenandoah Personal Communications, LLC Somerset, County of South Western School District Sprint Spectrum L.P. Sprintcom, Inc State of Maryland, MIEMSS Susquehanna Township School District T-Mobile License LLC Telecom Transport Management, Inc Telegia Communications Inc. USCOC of Cumberland, Inc. Virginia Everywhere, LLC WKYSFM, Inc. WV DHSEM, SIRN System Washington Cable Systems Inc. Windstream D&E Systems, Inc. Wireless Internetwork LLC World Class Wireless, LLC XO Communications, LLC York Water Co Frequency Coordination and Interference Analysis Report 04/17/2019 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 04/17/2019 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 04/03/2019 Job Number: 190403COMSGE05 Administrative Information Status ENGINEER PROPOSAL Call Sign KA258 Licensee Code INTELS Licensee Name Intelsat License LLC Site Information HAGERSTOWN, MD Venue Name Latitude (NAD 83) 39° 35' 54.6" N Longitude (NAD 83) 77° 45' 32.9" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 175.1 m / 574.5 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Analog and 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) 9.45 m / 31.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer TIW TIW Model 14.2 meter 14.2 meter Gain / Diameter 62.0 dBi / 14.2 m 65.4 dBi / 14.2 m 3-dB / 15-dB Beamwidth 0.20° / 0.40° 0.10° / 0.20° -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Frequency Information Receive 12.0 GHz Transmit 18.0 GHz 697.5 km / 433.4 mi 498.4 km / 309.7 mi 602.2 km / 374.2 mi 223.9 km / 139.1 mi Frequency Coordination and Interference Analysis Report 04/17/2019 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 HAGERSTOWN, MD Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 35' 54.6" N Longitude (NAD 83) 77° 45' 32.9" W Ground Elevation (AMSL) 175.1 m / 574.5 ft Antenna Centerline (AGL) 9.45 m / 31.0 ft Antenna Model TIW 14.2 meter Antenna Mode Receive 12.0 GHz Transmit 18.0 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 -0.5 (dBW/4 kHz) Receive 12.0 GHz Transmit 18.0 GHz 0 0.00 101.81 -10.00 231.37 -10.00 165.46 5 0.00 96.84 -10.00 231.37 -10.00 165.46 10 0.00 91.86 -10.00 231.37 -10.00 165.46 15 0.00 86.88 -10.00 231.37 -10.00 165.46 20 0.00 81.90 -10.00 231.37 -10.00 165.46 25 0.00 76.92 -10.00 231.37 -10.00 165.46 30 0.00 71.95 -10.00 231.37 -10.00 165.46 35 0.00 66.97 -10.00 231.37 -10.00 165.46 40 0.00 62.00 -10.00 231.37 -10.00 165.46 45 0.00 57.03 -10.00 231.37 -10.00 165.46 50 0.00 52.06 -10.00 231.37 -10.00 165.46 55 0.00 47.09 -9.82 232.14 -9.82 166.13 60 0.00 42.14 -8.62 237.52 -8.62 170.72 65 0.00 37.19 -7.26 243.78 -7.26 175.87 70 0.00 32.26 -5.72 251.29 -5.72 181.75 75 0.00 27.34 -3.92 260.19 -3.92 188.56 80 0.00 22.47 -1.79 271.24 -1.79 196.67 85 0.00 17.65 0.83 285.48 0.83 205.81 90 0.00 12.98 4.17 301.98 4.17 219.25 95 0.00 8.66 8.56 332.93 8.56 238.08 100 0.00 5.61 13.27 697.52 13.27 498.42 105 0.00 6.15 12.28 470.23 12.28 329.67 110 0.00 9.60 7.45 324.46 7.45 233.18 115 0.00 13.27 3.93 300.47 3.93 218.25 120 0.00 16.89 1.31 288.17 1.31 207.69 125 0.00 20.41 -0.75 276.81 -0.75 200.62 130 0.00 23.83 -2.43 267.88 -2.43 194.24 135 0.00 27.11 -3.83 260.66 -3.83 188.92 140 0.00 30.23 -5.01 254.75 -5.01 184.43 145 0.00 33.14 -6.01 249.86 -6.01 180.63 150 0.00 35.82 -6.85 245.83 -6.85 177.43 155 0.00 38.20 -7.55 242.41 -7.55 174.77 160 0.00 40.26 -8.12 239.78 -8.12 172.60 165 0.00 41.93 -8.56 237.77 -8.56 170.93 170 0.00 43.16 -8.88 236.35 -8.88 169.73 175 0.00 43.92 -9.07 235.50 -9.07 169.01 180 0.00 44.18 -9.13 235.21 -9.13 168.77 185 0.00 43.92 -9.07 235.49 -9.07 169.01 Frequency Coordination and Interference Analysis Report 04/17/2019 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 HAGERSTOWN, MD Licensee Name Intelsat License LLC Latitude (NAD 83) 39° 35' 54.6" N Longitude (NAD 83) 77° 45' 32.9" W Ground Elevation (AMSL) 175.1 m / 574.5 ft Antenna Centerline (AGL) 9.45 m / 31.0 ft Antenna Model TIW 14.2 meter Antenna Mode Receive 12.0 GHz Transmit 18.0 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 -0.5 (dBW/4 kHz) Receive 12.0 GHz Transmit 18.0 GHz 190 0.00 43.16 -8.88 236.35 -8.88 169.73 195 0.00 41.93 -8.56 237.77 -8.56 170.93 200 0.00 40.26 -8.12 239.78 -8.12 172.60 205 0.00 38.20 -7.55 242.41 -7.55 174.76 210 0.00 35.81 -6.85 245.83 -6.85 177.43 215 0.00 33.14 -6.01 249.87 -6.01 180.63 220 0.00 30.22 -5.01 254.75 -5.01 184.43 225 0.00 27.11 -3.83 260.66 -3.83 188.92 230 0.00 23.83 -2.43 267.87 -2.43 194.23 235 0.00 20.42 -0.75 276.80 -0.75 200.62 240 0.00 16.89 1.31 288.19 1.31 207.71 245 0.00 13.28 3.92 300.45 3.92 218.23 250 0.00 9.59 7.46 324.54 7.46 233.23 255 0.00 6.33 11.96 485.51 11.96 341.25 260 0.00 6.11 12.35 669.65 12.35 477.20 265 0.00 9.18 7.93 328.06 7.93 235.28 270 0.00 13.46 3.77 299.52 3.77 217.62 275 0.00 18.11 0.55 283.95 0.55 204.75 280 0.00 22.90 -2.00 270.15 -2.00 195.88 285 0.00 27.76 -4.09 259.36 -4.09 187.94 290 0.00 32.66 -5.85 250.63 -5.85 181.23 295 0.00 37.59 -7.38 243.24 -7.38 175.44 300 0.00 42.53 -8.72 237.07 -8.72 170.34 305 0.00 47.48 -9.91 231.75 -9.91 165.80 310 0.00 52.44 -10.00 231.37 -10.00 165.46 315 0.00 57.40 -10.00 231.37 -10.00 165.46 320 0.00 62.37 -10.00 231.37 -10.00 165.46 325 0.00 67.34 -10.00 231.37 -10.00 165.46 330 0.00 72.31 -10.00 231.37 -10.00 165.46 335 0.00 77.28 -10.00 231.37 -10.00 165.46 340 0.00 82.26 -10.00 231.37 -10.00 165.46 345 0.00 87.23 -10.00 231.37 -10.00 165.46 350 0.00 92.21 -10.00 231.37 -10.00 165.46 355 0.00 97.18 -10.00 231.37 -10.00 165.46 Frequency Coordination and Interference Analysis Report 04/17/2019 Page 10 of 11

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: April 17, 2019 Frequency Coordination and Interference Analysis Report 04/17/2019 Page 11 of 11


Document Created: 2019-05-02 15:35:04
Document Modified: 2019-05-02 15:35:04
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