Attachment Attachment A

This document pretains to SES-AMD-20190221-00310 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMD2019022100310_1627752

Ka-Band Earth Station – Bend, OR Frequency Coordination Report 28 GHz Prepared on Behalf of HUGHES NETWORK SYSTEMS LIMITED January 9, 2019

HUGHES NETWORK SYSTEMS LIMITED Ka-Band Earth Station – Bend, OR 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 UMFUS Coordination -2- 4. Earth Station Coordination Data -3- 5. Contact Information -7- Comsearch Proprietary -0- January 9, 2019

HUGHES NETWORK SYSTEMS LIMITED Ka-Band Earth Station – Bend, OR Frequency Coordination Report 28 GHz 1. Summary of Results On behalf of HUGHES NETWORK SYSTEMS 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 Bend, OR, 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 January 4, 2019. No objections were received from any of the incumbent 28 GHz licensees. Our notification to the UMFUS incumbents was performed under the assumption that the earth station would be operating on a secondary basis to UMFUS L1 & L2 Block operations and a contact at Hughes Network Systems 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 Bend, OR 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 Frontier Southwest Incorporated Nationwide A notification letter and datasheets for the Ka-Band earth station in Bend, OR 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 Continental US 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 – 28.6 GHz portion of the Ka-Band. Comsearch Proprietary -1- January 9, 2019

HUGHES NETWORK SYSTEMS LIMITED Ka-Band Earth Station – Bend, OR Frequency Coordination Report 28 GHz 3. 28 GHz UMFUS Coordination A Notification letter was sent to the following 28 GHz UMFUS licensees. The proposed earth station will operate on frequencies that overlap Channel L1 & L2 of the UMFUS service. The total frequency allocation for Channels L1 & L2 of the UMFUS spectrum appears below. Channel: L1 27.500 - 27.925 GHz L2 27.925 - 28.350 GHz Licensee Channel Area of Operation Verizon L1, L2 County Based Wilcom LLC L1, L2 County Based No objections were received from the UMFUS incumbents. Comsearch Proprietary -2- January 9, 2019

HUGHES NETWORK SYSTEMS LIMITED Ka-Band Earth Station – Bend, OR Frequency Coordination Report 28 GHz 4. Earth Station Coordination Data This section presents the data pertinent to the proposed Ka-Band earth station in Bend, OR. This data was circulated to all incumbent licensees in the shared 28 GHz frequency ranges. Comsearch Proprietary -3- January 9, 2019

HUGHES NETWORK SYSTEMS LIMITED Ka-Band Earth Station – Bend, OR Frequency Coordination Report 28 GHz Comsearch Proprietary -4- January 9, 2019

4¥ CO_MSEARCH‘ Coordination Values BEND, OR Licensee Name HUGHES NETWORK SYSTEMS LIMITED Latitude (NAD 83) 44° 510.6" N Longitude (NAD 83) 120° 172.0° W Ground Elevation (AMSL) 1070.39 m / 3611.8 ft Anterna Centerine (AGL) 549 m /18.0 t Antenna Mode Transmit 28.0 GHz Interference Objectives: Long Term —151.0 dBWM kHz 20% ~128.0 dBWHMkHz 0.0025% Max Available RF Power —35.0 (dBWHMkHz) Transmit 28.0 GHz Hortzon Antenna Horizon Coordination Azimuth (*) Elevation (*) Discrimination (*) Gain (dBi) Distance (km) 0 0.00 13338 —10.00 100.00 5 000 129.95 ~10.00 100.00 10 0.00 126.33 ~10.00 100.00 15 000 12257 —10.00 100.00 20 000 118.70 ~10.00 100.00 2 0.00 114.73 —10.00 100.00 30 000 110.68 ~10.00 100.00 % 0.00 106.59 —10.00 100.00 40 000 10245 —10.00 100.00 45 000 98 .26 ~10.00 100.00 50 000 94 09 ~10.00 100.00 56 000 89.99 ~10.00 100.00 60 000 85 69 ~10.00 100.00 66 .00 81.51 —10.00 100.00 T0 000 TT 3M ~10.00 100.00 T5 000 1320 —10.00 100.00 80 000 69811 ~10.00 100.00 & 000 65 .07 ~10.00 100.00 20 0.00 61.10 ~10.00 100.00 % 000 57.23 ~10.00 100.00 100 0.00 5348 —10.00 100.00 105 0.00 49 87 ~10.00 100.00 110 0.00 46.45 467 100.00 115 000 4326 890 100.00 120 000 40.37 415 100.00 125 033 37 56 137 100.00 130 032 3645 £74 100.00 135 042 3377 621 100.00 140 046 3274 488 100.00 145 049 3239 576 100.00 150 053 3271 4587 100.00 155 050 33.76 €21 100.00 160 054 3536 £71 100.00 165 0.80 3729 12 100.00 170 103 373 —1.% 100.00 175 240 4181 153 100.00 180 354 44.52 821 100.00 185 159 49 20 ~10.00 100.00 es vomay oy eere

4¥ CO_MSEARCH‘ Coordination Values BEND, OR Licensee Name HUGHES NETWORK SYSTEMS LIMTED Latitude (NAD 83) 4° 510.6° N Longitude (NAD 83) 120 17 2.0° W Ground Elevation (AMSL} 1070.39 m / 3511.6 f Antenna Centerline (AGL) 549 m / 18.0 Antenna Mode Transmit 280 GHz Interference Objectives: Long Term —151.0 dBWiMkhz 20% ~128.0 dBWikhz 0.0025% Max Available RF Power ~35.0 (dBWM kHz) Transmit 28.0 GHz Horizon Antenna Horizon Coordination Azimuth (*) Blevation (*) Discrimination (*) Gain (dBi) Distance (Km) 190 144 52.99 —10.00 100.00 195 1.11 56.97 —10.00 100.00 200 096 60.97 —10.00 100.00 205 101 64.98 —10.00 100.00 210 136 56.99 —10.00 100.00 215 083 T326 —10.00 100.00 220 1.16 T73 —10.00 100.00 225 1.03 8163 —10.00 100.00 230 108 85.86 1000 100.00 2% 120 30.11 —10.00 100.00 240 165 9438 —10.00 100.00 245 224 98.70 —10.00 100.00 250 264 103.03 —10.00 100.00 255 302 107.% —10.00 100.00 260 301 11161 —10.00 100.00 265 212 115.72 10.00 100.00 270 202 119.60 —10.00 100.00 275 127 1329 —10.00 100.00 280 083 126.92 —10.00 100.00 285 077 130.55 —10.00 100.00 290 0.77 13402 —10.00 100.00 295 062 137.16 —10.00 100.00 300 050 140.01 +10.00 100.00 305 052 14260 —10.00 100.00 310 032 144.5 —10.00 100.00 315 053 146.34 —10.00 100.00 320 037 147.17 10.00 100.00 325 0.00 147.12 —10.00 100.00 330 000 146.77 —10.00 100.00 335 000 145.76 —10.00 100.00 340 000 144.16 10.00 100.00 3M5 000 142.05 —10.00 100.00 350 000 12949 —10.00 100.00 355 000 136.58 —10.00 100.00 es vomay oy eere

HUGHES NETWORK SYSTEMS LIMITED Ka-Band Earth Station – Bend, OR 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 -7- January 9, 2019


Document Created: 2019-01-09 16:00:22
Document Modified: 2019-01-09 16:00:22
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