Attachment Exhibit B

This document pretains to SES-LIC-20180604-01082 for License on a Satellite Earth Station filing.

IBFS_SESLIC2018060401082_1409713

Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz Prepared on Behalf of WorldVu Satellites Limited May 22, 2018

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz Table of Contents 1. Summary of Results -1- 2. 28 GHz Common Carrier and LTTS Coordination -1- 3. 28 GHz LMDS Coordination -2- 4. Earth Station Coordination Data -3- 5. Contact Information -7- Comsearch Proprietary May -22, 2018 -0-

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz 1. Summary of Results On behalf of WorldVu Satellites Limited, Comsearch performed a coordination notice for all existing and proposed terrestrial licenses within the coordination contours of their proposed Ka- Band earth station in Talkeetna, AK, which will transmit at 28 GHz1. Prior-notification letters were sent to the licensees and a copy of the notification data is provided in section four of this report. The earth station coordination was finalized on May 14, 2018. No objections were received from any of the incumbent 28 GHz licensees. Our notification to the incumbents was performed under the assumption that the earth station would be operating on a secondary basis to LMDS Block A operations and a contact at WorldVu Satellites Limited has been provided in case any concerns may arise in the future. 2. 28 GHz Common Carrier and LTTS Coordination In accordance with FCC Rules and Regulations, the Ka-Band earth station in Talkeetna, AK was prior-coordinated by Comsearch. A notification letter and datasheets for this earth station were sent to the following 28 GHz common carrier fixed microwave licensees. These licensees are authorized to operate temporary fixed operations from 27.5 – 29.5 GHz on a nationwide basis or local basis. Licensee Authorized Geographic Area Alascom Alaska Frontier Southwest Incorporated Nationwide The Alaska Wireless Network, LLC Alaska A notification letter and datasheets for the Ka-Band earth station in Talkeetna, AK were also sent to the following 28 GHz local television transmission licensee. This licensee is authorized to operate temporary fixed operations from 27.5 – 29.5 GHz on a nationwide basis. Licensee Authorized Geographic Area Information Super Station, LLC Nationwide No objections were received from the common carrier or local television transmission service incumbents. 1 The proposed earth station will operate in the 27.5 – 29.1, 29.5 – 30.0 GHz portion of the Ka-Band. Comsearch Proprietary May -22, 2018 -1-

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz 3. 28 GHz LMDS Coordination A Notification letter was sent to the following 28 GHz LMDS licensees. The proposed earth station will operate on frequencies that overlap Block A of the LMDS service. The total frequency allocation for Block A of the LMDS spectrum appears below. Block A: 27.500-28.350 GHz 29.100-29.250 GHz 31.075-31.225 GHz Licensee Market Market Name Sprint BTA014 Anchorage, AK No objections were received from LMDS licensees. Comsearch Proprietary May -22, 2018 -2-

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz 4. Earth Station Coordination Data This section presents the data pertinent to the proposed Ka-Band earth station in Talkeetna, AK. This data was circulated to all incumbent licensees in the shared 28 GHz frequency ranges. Comsearch Proprietary May -22, 2018 -3-

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz Comsearch Proprietary May -22, 2018 -4-

—W4 COMSEARCH " * A CommScope Company To t t— Coordination Values TALKEETNA. AK Licensee Name WorldVvu Satellites Limited Latitude (NAD 83) 62° 19 59.1" N Longitude (NAD 83) 150" 1° 52:4" N Ground Elevation (AMSL) 148.0 m / 4856 ft/Antenna Centeriine (AGL) 2.44 m / 8.0 ft Antenna Mode| CPI 3.5 meter Interference Objectives: Long Term —152.4 dByVvinMHz 205 —~1§1.:0 dBW/4 kHz 20%, Short Term 142.4 dBW/MHz 0.01% ~128.0 dBWV/4 kHz 0.0025% Max Available RF Power —39 6 (dBW/4 kHz) Receive 18 0 GHz Transmit 280 GHz Honzonr Amenta Homzor Coordination Horizorn Coordination Azimuth (") Elavation (°) Ciscnminaton ("} Gain (dB;) Cistance (km] Gain (dB¥) Cietance (km|] O ©.00 44 18 7 . OO 120.00 8. 76 100.00 5 0.00 40. 97 7 .00 120.00 8. 76 100.00 10 0.0O 38.07 7 . OO 120.00 8.76 100.00 15 0.00 35. 56 7.00 120.00 8. 76 100.00 260 0.0O0 33. 53 7 .00 120.00 8.76 100.00 25 0.00 32 OB 7.00 120.00 8. 76 100.00 30 0.00 31. 29 7 .00 120.00 8.76 100.00 35 0_.0O0 31.21 7 .00 120.00 8.76 100.00 4( 0.00 31 A4 7 .00 120.00 8.76 100.00 45 0.0O0 33.15 7 .00 120.00 8.76 100.00 50 0. OXO 35. 05 7 .00 120.00 8.76 100.00 55 000 37 .46 7 .00 120.00 8. 76 100.00 6O 0 .00 40.77 7 .00 120.00 8.76 100.00 65 000 43. 43 7 .00 120.00 8. 76 100.00 70 0.00 46 B4 7.00 120.00 8. 76 100.00 75 0.0O 590.46 7 .00 120.00 8.76 100.00 80 000 5i4 24 7 .00 120.00 8. 76 100.00 §5 0 .00 58.15 7 . OO 120.00 8. 76 100.00 90 0.00 62.16 7.00 120.00 8. 76 100.00 45 0.0O 66. 25 7 .00 120.00 8.76 100.00 100 0.00 70.41 7.00 120.00 8. 76 100.00 105 0.00 74.61 7 .00 120.00 8.76 100.00 110 000 78. Bd 7 .00 120.00 8.76 100.00 115 0 .00 83.10 7 .00 120.00 8.76 100.00 120 000 87 .37 7 .00 120.00 8.76 100.00 129 0 .100 91.65 7 .00 120.00 8.76 100.00 130 000 95. 93 7 .00 120.00 8. 76 100.00 135 0 .00 100.198 7 .00 120.00 8.76 100.00 140 000 104.43 7 .00 120.00 8. 76 100.00 145 0.00 108. 64 7.00 120.00 8.76 100.00 150 0 .00 112.80 7 .00 120.—.00 8. 76 100.00 1565 000 116.91 7.00 120.00 8. 76 100.00 160 000 120 4 7 . OO 12000 8.76 100.00 165 0.00 124 BA 7.00 120.00 8. 76 100.00 170 0.00 128.69 7 .00 120.00 8.76 100.00 175 0.00 132 .35 7.00 120.00 8. 76 100.00 180 0.00 135. 82 7 .00 120.00 8.76 100.00 185 000 139.03 7.00 120.00 3. 76 100.00

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz Comsearch Proprietary May -22, 2018 -6-

WorldVu Satellites Limited Ka-Band Earth Station – Talkeetna, AK Frequency Coordination Report 28 GHz 5. Contact Information For questions or information regarding the 28 GHz Frequency Coordination Report, please contact: Contact person: Dennis Jimeno Title: Engineer III, Telecommunications Company: Comsearch Address: 19700 Janelia Farm Blvd., Ashburn, VA 20147 Telephone: 703-726-5858 Fax: 703-726-5599 Email: DJimeno@Comsearch.com Web site: www.comsearch.com Comsearch Proprietary May -22, 2018 -7-

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for WorldVu Satellites Limited TALKEETNA, AK Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 15, 2018

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................ 3 2. SUMMARY OF RESULTS ............................................................................................................................ 4 3. SUPPLEMENTAL SHOWING ....................................................................................................................... 5 4. EARTH STATION COORDINATION DATA .................................................................................................. 6 5. CERTIFICATION ......................................................................................................................................... 10 Frequency Coordination and Interference Analysis Report 05/15/2018 Page 2 of 10

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 05/15/2018 Page 3 of 10

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 GCI Communications Corp. No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 05/15/2018 Page 4 of 10

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 04/06/2018. Company ACS Wireless License Sub, Inc. AT&T Mobility Spectrum LLC - AK Alaska Wireless Network, LLC Anchorage, Municipality of Fixed Wireless Holdings, LLC GCI Communications Corp. Matanuska Telephone Association, Inc. State of Alaska Frequency Coordination and Interference Analysis Report 05/15/2018 Page 5 of 10

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 05/15/2018 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 05/15/2018 Job Number: 180406COMSGE04 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code WORSAT Licensee Name WorldVu Satellites Limited Site Information TALKEETNA, AK Venue Name Latitude (NAD 83) 62° 19' 59.1" N Longitude (NAD 83) 150° 1' 52.4" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 148.0 m / 485.6 ft Link Information Satellite Type Low Earth Orbit Mode TR - Transmit-Receive Modulation Digital Minimum Elevation Angle 10.0° Azimuth Range 0.0° to 360° Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer CPI CPI Model 3.5 meter 3.5 meter Gain / Diameter 54.6 dBi / 3.5 m 58.0 dBi / 3.5 m 3-dB / 15-dB Beamwidth 0.32° / 0.36° 0.21° / 0.23° Max Available RF Power (dBW/4 kHz) -35.0 (dBW/MHz) -11.0 Maximum EIRP (dBW/4 kHz) 23.0 (dBW/MHz) 47.0 Interference Objectives: Long Term -152.4 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -142.4 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Frequency Information Receive 18.0 GHz Transmit 28.0 GHz Emission / Frequency Range (MHz) 2M16G7D - 18M0G7D / 17800.0 - 18600.0 230MG7D / 27500.0 - 29100.0 2M16G7D - 18M0G7D / 18800.0 - 19300.0 230MG7D / 29500.0 - 29500.0 Max Great Circle Coordination Distance 120.0 km / 74.6 mi 100.0 km / 62.1 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 05/15/2018 Page 7 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values TALKEETNA, AK Licensee Name WorldVu Satellites Limited Latitude (NAD 83) 62° 19' 59.1" N Longitude (NAD 83) 150° 1' 52.4" W Ground Elevation (AMSL) 148.0 m / 485.6 ft Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Model CPI 3.5 meter Antenna Mode Receive 18.0 GHz Transmit 28.0 GHz Interference Objectives: Long Term -152.4 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -142.4 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -35.0 (dBW/4 kHz) Receive 18.0 GHz Transmit 28.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 44.18 7.00 120.00 8.76 100.00 5 0.00 40.97 7.00 120.00 8.76 100.00 10 0.00 38.07 7.00 120.00 8.76 100.00 15 0.00 35.56 7.00 120.00 8.76 100.00 20 0.00 33.53 7.00 120.00 8.76 100.00 25 0.00 32.08 7.00 120.00 8.76 100.00 30 0.00 31.29 7.00 120.00 8.76 100.00 35 0.00 31.21 7.00 120.00 8.76 100.00 40 0.00 31.84 7.00 120.00 8.76 100.00 45 0.00 33.15 7.00 120.00 8.76 100.00 50 0.00 35.05 7.00 120.00 8.76 100.00 55 0.00 37.46 7.00 120.00 8.76 100.00 60 0.00 40.27 7.00 120.00 8.76 100.00 65 0.00 43.43 7.00 120.00 8.76 100.00 70 0.00 46.84 7.00 120.00 8.76 100.00 75 0.00 50.46 7.00 120.00 8.76 100.00 80 0.00 54.24 7.00 120.00 8.76 100.00 85 0.00 58.15 7.00 120.00 8.76 100.00 90 0.00 62.16 7.00 120.00 8.76 100.00 95 0.00 66.25 7.00 120.00 8.76 100.00 100 0.00 70.41 7.00 120.00 8.76 100.00 105 0.00 74.61 7.00 120.00 8.76 100.00 110 0.00 78.84 7.00 120.00 8.76 100.00 115 0.00 83.10 7.00 120.00 8.76 100.00 120 0.00 87.37 7.00 120.00 8.76 100.00 125 0.00 91.65 7.00 120.00 8.76 100.00 130 0.00 95.93 7.00 120.00 8.76 100.00 135 0.00 100.19 7.00 120.00 8.76 100.00 140 0.00 104.43 7.00 120.00 8.76 100.00 145 0.00 108.64 7.00 120.00 8.76 100.00 150 0.00 112.80 7.00 120.00 8.76 100.00 155 0.00 116.91 7.00 120.00 8.76 100.00 160 0.00 120.94 7.00 120.00 8.76 100.00 165 0.00 124.88 7.00 120.00 8.76 100.00 170 0.00 128.69 7.00 120.00 8.76 100.00 175 0.00 132.35 7.00 120.00 8.76 100.00 180 0.00 135.82 7.00 120.00 8.76 100.00 185 0.00 139.03 7.00 120.00 8.76 100.00 Frequency Coordination and Interference Analysis Report 05/15/2018 Page 8 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values TALKEETNA, AK Licensee Name WorldVu Satellites Limited Latitude (NAD 83) 62° 19' 59.1" N Longitude (NAD 83) 150° 1' 52.4" W Ground Elevation (AMSL) 148.0 m / 485.6 ft Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Model CPI 3.5 meter Antenna Mode Receive 18.0 GHz Transmit 28.0 GHz Interference Objectives: Long Term -152.4 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -142.4 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -35.0 (dBW/4 kHz) Receive 18.0 GHz Transmit 28.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 141.93 7.00 120.00 8.76 100.00 195 0.00 144.44 7.00 120.00 8.76 100.00 200 0.00 146.47 7.00 120.00 8.76 100.00 205 0.00 147.92 7.00 120.00 8.76 100.00 210 0.00 148.71 7.00 120.00 8.76 100.00 215 0.00 148.79 7.00 120.00 8.76 100.00 220 0.00 148.16 7.00 120.00 8.76 100.00 225 0.00 146.85 7.00 120.00 8.76 100.00 230 0.00 144.95 7.00 120.00 8.76 100.00 235 0.00 142.54 7.00 120.00 8.76 100.00 240 0.00 139.73 7.00 120.00 8.76 100.00 245 0.00 136.57 7.00 120.00 8.76 100.00 250 0.00 133.16 7.00 120.00 8.76 100.00 255 0.00 129.54 7.00 120.00 8.76 100.00 260 0.00 125.76 7.00 120.00 8.76 100.00 265 0.00 121.85 7.00 120.00 8.76 100.00 270 0.00 117.84 7.00 120.00 8.76 100.00 275 0.00 113.75 7.00 120.00 8.76 100.00 280 0.00 109.59 7.00 120.00 8.76 100.00 285 0.00 105.39 7.00 120.00 8.76 100.00 290 0.00 101.16 7.00 120.00 8.76 100.00 295 0.00 96.90 7.00 120.00 8.76 100.00 300 0.00 92.63 7.00 120.00 8.76 100.00 305 0.00 88.35 7.00 120.00 8.76 100.00 310 0.00 84.07 7.00 120.00 8.76 100.00 315 0.00 79.81 7.00 120.00 8.76 100.00 320 0.00 75.57 7.00 120.00 8.76 100.00 325 0.00 71.36 7.00 120.00 8.76 100.00 330 0.00 67.20 7.00 120.00 8.76 100.00 335 0.00 63.09 7.00 120.00 8.76 100.00 340 0.00 59.06 7.00 120.00 8.76 100.00 345 0.00 55.12 7.00 120.00 8.76 100.00 350 0.00 51.31 7.00 120.00 8.76 100.00 355 0.00 47.65 7.00 120.00 8.76 100.00 Frequency Coordination and Interference Analysis Report 05/15/2018 Page 9 of 10

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: May 15, 2018 Frequency Coordination and Interference Analysis Report 05/15/2018 Page 10 of 10


Document Created: 2018-06-01 12:21:19
Document Modified: 2018-06-01 12:21:19
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