Attachment Comsearch Report

This document pretains to SES-LIC-20190402-00427 for License on a Satellite Earth Station filing.

IBFS_SESLIC2019040200427_1640262

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Space Exploration Holdings REDMOND RIDGE, WA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 March 22, 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 03/22/2019 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 03/22/2019 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 Seattle SMSA Limited Partnership T-Mobile License LLC No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 03/22/2019 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 02/15/2019. Company AT&T Mobility Spectrum LLC - Washington AT&T Mobility Wireless Ops Hldgs - WA AT&T Mobility Wireless Ops Hldgs Inc -OR AT&T Wireless Services 3 LLC - OR Accel Net, Inc. Advanced Internet Air Speed Internet, LLC All Classical Public Media, Inc Astoria 911 Astound Broadband, LLC Azure Standard BNSF Railway Company Bain, Robert B Bearclaw, LLC Bellingham, City of Benton Rural Electric Association Boeing Company Bookbinder, LLC Boss Ventures, LLC Cascade Natural Gas Corporation Cellco Partnership - Washington Cencom - Kitsap 911 CenturyTel of Inter Island, Inc. CenturyTel of Washington, Inc. Chelan County PUD #1 City of Astoria City of Portland City of Seaside City of Tacoma / Tacoma Public Utilities Clackamas C800 Radio Group Clackamas River Water District Clackamas, County of Clark, County of WA (Emergency Services) Clearwire Spectrum Holdings II, LLC Clearwire Spectrum Holdings III, LLC Clearwire Spectrum Holdings LLC Columbia 911 Communications District Community Transit Snohomish County PTBA Computer 5, Inc. Cowlitz County Fire District #5 Cowlitz, County of Frequency Coordination and Interference Analysis Report 03/22/2019 Page 5 of 12

Cyberdyne Networks, Inc. Darrington Internet Users Association Day Management Corporation Desert Winds Wireless Eastside Public Safety Com Agency Electron Hydro LLC Ellensburg Telephone Company Entercom License, LLC Everett Clinic Everett MSO, Inc. Fisher Broadcasting, Inc. KOMO TV Freewire Broadband LLC Frontier Communications Northwest Inc. Global Data Link, Inc Gorge Networks Haystack Broadcasting Inc Infinity Internet Jefferson Microwave, LLC Johnson Network LLC KGY, Inc. King Broadcasting Company - KTVB TV King County DOT Metro Transit Division King, County of MCI Communications Services Inc. Makah Tribe Maritime Fire & Safety Association Mason County PUD No 3 McDaniel Cellular Telephone Company McMinnville Access Company Medicine Wheel Website Design, Inc. Microsoft Mosier WiNet, LLC Mt. Baker Cable NCI Datacom, Inc. NW Natural Gas Company New Cingular Wireless PCS LLC -OR Region New Cingular Wireless PCS LLC-Washington Noel Communications, Inc. North Central ESD Northwest Open Access Network Northwest Pipeline GP Olympic Wireless, LLC Orcas Power And Light Cooperative Oregon RSA #2, Inc. Oregon State Oregon State (Osp) PacifiCorp Pacific Public Media Pick Two LLC Pierce County Pierce Transit PocketiNet Communications Inc. Port of Seattle Portland General Electric Public Util Dist. #1 of Snohomish County Public Utility Dist #1 of Clark County Frequency Coordination and Interference Analysis Report 03/22/2019 Page 6 of 12

Public Utility Dist 1 of Cowlitz County Puget Sound Energy, Inc Quicktel Internet Qwest Corporation Rivercom 911 Rock Island Technology Solutions Sawtooth Technologies, LLC Seattle City Light Seattle FCC License Sub, LLC Seattle SMSA Limited Partnership Seattle's Best Internet, LLC Seattle, City of Sinclair Radio of Seattle Licensee, LLC Skagit 911 Skotdal Brothers LLC (c/o CSI) SmartSky Microwave, LLC Snohomish County Emergency Radio System Sound Internet Services, Inc. Spectrum Communications Inc Sprint Spectrum L.P. Sprintcom, Inc St. Anthony Hospital Startouch, Inc. Stephouse Holdings Company, LLC Stephouse Networks Symplified Technologies, LLC T-Mobile License LLC Thurston 9-1-1 Communications Towerstream Corp. Tri County Metro Transit Dist of Oregon USCOC of Richland, Inc. Union Pacific Railroad Company United Telephone Co. of the Northwest Verizon Wireless (VAW) LLC - (WA) Verizon Wireless (VAW) LLC-Portland, OR Washington Broadband, Inc. Washington County Consolidated Comm Agnc Washington State Dept of Natural Resourc Washington State of Dept of Transportat Washington, State of Western Sub-RSA LTD Partnership Whiz to Coho, Inc. Wiline Spectrum Holdings LLC Wiztronics, Inc. Yakima City Washington Yakima MSA Limited Partnership Frequency Coordination and Interference Analysis Report 03/22/2019 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 03/22/2019 Page 8 of 12

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 03/22/2019 Job Number: 190215COMSGE04 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code SPACEX Licensee Name Space Exploration Holdings Site Information REDMOND RIDGE, WA Venue Name Latitude (NAD 83) 47° 41' 38.7" N Longitude (NAD 83) 122° 1' 56.0" W Climate Zone A Rain Zone 3 Ground Elevation (AMSL) 179.79 m / 589.9 ft Link Information Satellite Type Low Earth Orbit Mode TR - Transmit-Receive Modulation Digital Minimum Elevation Angle 25.0° Azimuth Range 0.0° to 360° Antenna Centerline (AGL) 7.89 m / 25.9 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Cobham Cobham Model MK3 series MK3 series Gain / Diameter 39.3 dBi / 1.0 m 40.1 dBi / 1.0 m 3-dB / 15-dB Beamwidth 1.50° / 3.40° 1.20° / 2.80° Max Available RF Power (dBW/4 kHz) -1.2 (dBW/MHz) 22.8 Maximum EIRP (dBW/4 kHz) 38.9 (dBW/MHz) 62.9 Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Frequency Information Receive 11.0 GHz Transmit 14.0 GHz Emission / Frequency Range (MHz) 240MD7W / 10700.0 - 12700.0 62M5D7W - 240MD7W / 14000.0 - 14500.0 Max Great Circle Coordination Distance 265.5 km / 165.0 mi 202.3 km / 125.7 mi Precipitation Scatter Contour Radius 356.3 km / 221.4 mi 127.5 km / 79.2 mi Frequency Coordination and Interference Analysis Report 03/22/2019 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 REDMOND RIDG, WA Licensee Name Space Exploration Holdings Latitude (NAD 83) 47° 41' 38.7" N Longitude (NAD 83) 122° 1' 56.0" W Ground Elevation (AMSL) 179.79 m / 589.9 ft Antenna Centerline (AGL) 7.89 m / 25.9 ft Antenna Model Cobham 1 meter Antenna Mode Receive 11.0 GHz Transmit 14.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -1.2 (dBW/4 kHz) Receive 11.0 GHz Transmit 14.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 68.36 -5.50 265.50 -5.50 202.30 5 0.00 64.09 -5.50 265.50 -5.50 202.30 10 0.00 59.89 -5.50 265.50 -5.50 202.30 15 0.00 55.77 -5.50 265.50 -5.50 202.30 20 0.00 51.74 -5.50 265.50 -5.50 202.30 25 0.00 47.84 -5.50 265.50 -5.50 202.30 30 0.00 44.11 -5.50 265.50 -5.50 202.30 35 0.00 40.59 -5.50 265.50 -5.50 202.30 40 0.00 37.35 -5.50 265.50 -5.50 202.30 45 0.00 34.46 -5.50 265.50 -5.50 202.30 50 0.00 32.03 -5.50 265.50 -5.50 202.30 55 0.00 30.17 -5.50 265.50 -5.50 202.30 60 0.00 28.98 -5.50 265.50 -5.50 202.30 65 0.00 28.55 -5.50 265.50 -5.50 202.30 70 0.00 28.92 -5.50 265.50 -5.50 202.30 75 0.00 30.06 -5.50 265.50 -5.50 202.30 80 0.00 31.88 -5.50 265.50 -5.50 202.30 85 0.00 34.28 -5.50 265.50 -5.50 202.30 90 0.00 37.14 -5.50 265.50 -5.50 202.30 95 0.00 40.36 -5.50 265.50 -5.50 202.30 100 0.00 43.86 -5.50 265.50 -5.50 202.30 105 0.00 47.58 -5.50 265.50 -5.50 202.30 110 0.00 51.47 -5.50 265.50 -5.50 202.30 115 0.00 55.48 -5.50 265.50 -5.50 202.30 120 0.00 59.60 -5.50 265.50 -5.50 202.30 125 0.00 63.80 -5.50 265.50 -5.50 202.30 130 0.00 68.06 -5.50 265.50 -5.50 202.30 135 0.00 72.37 -5.50 265.50 -5.50 202.30 140 0.00 76.71 -5.50 265.50 -5.50 202.30 145 0.00 81.08 -5.50 265.50 -5.50 202.30 150 0.00 85.46 -5.50 265.50 -5.50 202.30 155 0.00 89.85 -5.50 265.50 -5.50 202.30 160 0.00 94.24 -5.50 265.50 -5.50 202.30 165 0.00 98.62 -5.50 265.50 -5.50 202.30 170 0.00 102.99 -5.50 265.50 -5.50 202.30 175 0.00 107.33 -5.50 265.50 -5.50 202.30 180 0.00 111.64 -5.50 265.50 -5.50 202.30 185 0.00 115.91 -5.50 265.50 -5.50 202.30 Frequency Coordination and Interference Analysis Report 03/22/2019 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 REDMOND RIDG, WA Licensee Name Space Exploration Holdings Latitude (NAD 83) 47° 41' 38.7" N Longitude (NAD 83) 122° 1' 56.0" W Ground Elevation (AMSL) 179.79 m / 589.9 ft Antenna Centerline (AGL) 7.89 m / 25.9 ft Antenna Model Cobham 1 meter Antenna Mode Receive 11.0 GHz Transmit 14.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -1.2 (dBW/4 kHz) Receive 11.0 GHz Transmit 14.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 120.11 -5.50 265.50 -5.50 202.30 195 0.00 124.23 -5.50 265.50 -5.50 202.30 200 0.00 128.26 -5.50 265.50 -5.50 202.30 205 0.00 132.16 -5.50 265.50 -5.50 202.30 210 0.00 135.89 -5.50 265.50 -5.50 202.30 215 0.00 139.41 -5.50 265.50 -5.50 202.30 220 0.00 142.65 -5.50 265.50 -5.50 202.30 225 0.00 145.54 -5.50 265.50 -5.50 202.30 230 0.00 147.97 -5.50 265.50 -5.50 202.30 235 0.00 149.83 -5.50 265.50 -5.50 202.30 240 0.00 151.02 -5.50 265.50 -5.50 202.30 245 0.00 151.45 -5.50 265.50 -5.50 202.30 250 0.00 151.08 -5.50 265.50 -5.50 202.30 255 0.00 149.94 -5.50 265.50 -5.50 202.30 260 0.00 148.12 -5.50 265.50 -5.50 202.30 265 0.00 145.72 -5.50 265.50 -5.50 202.30 270 0.00 142.86 -5.50 265.50 -5.50 202.30 275 0.00 139.64 -5.50 265.50 -5.50 202.30 280 0.00 136.14 -5.50 265.50 -5.50 202.30 285 0.00 132.42 -5.50 265.50 -5.50 202.30 290 0.00 128.53 -5.50 265.50 -5.50 202.30 295 0.00 124.52 -5.50 265.50 -5.50 202.30 300 0.00 120.40 -5.50 265.50 -5.50 202.30 305 0.00 116.20 -5.50 265.50 -5.50 202.30 310 0.00 111.94 -5.50 265.50 -5.50 202.30 315 0.00 107.63 -5.50 265.50 -5.50 202.30 320 0.00 103.29 -5.50 265.50 -5.50 202.30 325 0.00 98.92 -5.50 265.50 -5.50 202.30 330 0.00 94.54 -5.50 265.50 -5.50 202.30 335 0.00 90.15 -5.50 265.50 -5.50 202.30 340 0.00 85.76 -5.50 265.50 -5.50 202.30 345 0.00 81.38 -5.50 265.50 -5.50 202.30 350 0.00 77.01 -5.50 265.50 -5.50 202.30 355 0.00 72.67 -5.50 265.50 -5.50 202.30 Frequency Coordination and Interference Analysis Report 03/22/2019 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: March 22, 2019 Frequency Coordination and Interference Analysis Report 03/22/2019 Page 12 of 12


Document Created: 2019-03-22 14:09:44
Document Modified: 2019-03-22 14:09:44
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