Attachment Frequency Coordinati

This document pretains to SES-MOD-INTR2019-02457 for Modification on a Satellite Earth Station filing.

IBFS_SESMODINTR201902457_1733275

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT MINOR NOTIFICATION Prepared for Allen Holdings, Inc MARCHAFB, CA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 June 12, 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 06/12/2019 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. Operation will be restricted to the bandwidth shown in Section 4 of this report. Frequency Coordination and Interference Analysis Report 06/12/2019 Page 3 of 11

2. SUMMARY OF RESULTS All great circle interference cases were previously resolved for this site. No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 06/12/2019 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. All great circle interference cases were previously resolved for this site. Company ABC Holding Company Inc. AT&T Mobility Spectrum LLC - Southern CA Air Sites 2000 LLC Anaheim City, of BNSF Railway Company CCO SoCal I, LLC California Internet Solutions, Inc. California Internet, L.P California, State of Calvary Chapel of Costa Mesa Cellco Partnership - Southern California City of Los Angeles Dept Water & Power City of Montebello City of West Covina Coachella Valley Water District Coast Community College District DM Ventures, Inc. dba Warp2Biz DRS Global Enterprise Solutions, Inc. Entravision Holdings, LLC Frontier California Inc. Glendale City California Global Telecom & Technology Americas, In ION Media Los Angeles License, Inc. Imperial Irrigation District KTLA, LLC LDM Engineering Lightwave Broadband LLC Los Angeles City Info Technology Agency Los Angeles County Dept of Public Works Los Angeles County FCC Licensing Section Los Angeles County Metro Transit Auth Los Angeles Regional Interoperable Comm Los Angeles SMSA Ltd. Partnership Los Angeles Unified School District MHO Networks Metropolitan Water Dist of So California Mobile Relay Associates Inc. New Cingular Wireless PCS - Los Angeles New Cingular Wireless PCS LLC -San Diego Nextel of California Inc. Norris, Samuel O Frequency Coordination and Interference Analysis Report 06/12/2019 Page 5 of 11

Northrop Grumman Systems Corp. Nrj TV La License Co, LLC Olympic Wireless, LLC Orange, County of, CA Pacific Bell Tel Com dba AT&T California Pacific Lightwave Inc Regional 3Cs Riverside, County of San Bernardino County of California San Diego Broadband San Diego Gas & Electric Company San Diego, City of San Diego, County of Skyriver Communications Southern California Edison Company Southern California Gas Company Southern California Regional Rail Auth. Spectrum Link, Inc. Station Venture Operations, LP T-Mobile License LLC TV Microwaves Company Turn Wireless, LLC Ultimate Internet Access, Inc Union Pacific Railroad Company University of California, HPWREN Venture Technologies Group, LLC Verizon Wireless (VAW) LLC (Southern CA) Western Broadband Inc. Wiline Spectrum Holdings LLC Wisprenn Frequency Coordination and Interference Analysis Report 06/12/2019 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 06/12/2019 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 06/12/2019 Job Number: 190612COMSTC03 Administrative Information Call Sign E000232 Licensee Code SALLCO Licensee Name Allen Holdings, Inc Site Information MARCH AFB, CA Venue Name Latitude (NAD 83) 33° 54' 21.7" N Longitude (NAD 83) 117° 14' 57.8" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 468.5 m / 1537.1 ft Link Information Satellite Type Geostationary Mode TO - Transmit-Only Modulation Digital Satellite Arc 53° W to 143° West Longitude Azimuth Range 105.1° to 220.8° Corresponding Elevation Angles 12.6° / 41.9° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Transmit - A60931 Manufacturer ANDREW CORPORATION Model ESA9.3-46 Gain / Diameter 53.9 dBi / 9.3 m 3-dB / 15-dB Beamwidth 0.30° / 0.60° 1M23G7W - 9M00G7W Max Available RF Power (dBW/4 kHz) -14.7 -14.7 (dBW/MHz) 9.3 9.3 Maximum EIRP (dBW/4 kHz) 39.2 39.2 (dBW/MHz) 63.2 63.2 (dBW) 64.1 72.7 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) 1M23G7W - 9M00G7W / 5992.0 - 6098.0 Band Edges 1M23G7W - 9M00G7W / 6148.0 - 6359.0 Band Edges 1M23G7W - 9M00G7W / 6391.0 - 6425.0 Band Edges Max Great Circle Coordination Distance 144.8 km / 90.0 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 06/12/2019 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 MARCH AFB, CA Licensee Name Allen Holdings, Inc Latitude (NAD 83) 33° 54' 21.7" N Longitude (NAD 83) 117° 14' 57.8" W Ground Elevation (AMSL) 468.5 m / 1537.1 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Andrew Corporation ESA9.3-46 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 -14.7 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.81 104.73 -10.10 100.00 5 1.80 99.88 -10.10 100.00 10 0.92 94.96 -10.10 100.00 15 1.14 90.06 -10.10 100.00 20 2.69 85.14 -10.10 100.00 25 3.04 80.20 -10.10 100.00 30 2.35 75.31 -10.10 100.00 35 1.92 70.43 -10.10 100.00 40 1.83 65.54 -10.10 100.00 45 1.52 60.68 -10.10 100.00 50 0.90 55.90 -10.10 100.00 55 0.62 51.11 -10.10 101.06 60 0.54 46.32 -9.36 106.74 65 0.81 41.49 -8.40 100.00 70 0.92 36.73 -6.79 100.00 75 0.51 32.21 -5.54 118.23 80 0.00 27.89 -5.10 143.74 85 0.00 23.58 -5.10 143.74 90 0.00 19.57 -4.76 144.82 95 0.57 15.67 -1.64 126.21 100 0.76 12.91 0.99 125.30 105 0.61 12.04 1.86 133.74 110 1.14 12.51 1.39 112.19 115 1.93 14.58 -0.68 100.00 120 2.38 18.02 -3.52 100.00 125 2.57 21.75 -5.10 100.00 130 1.77 26.00 -5.10 100.00 135 0.76 30.28 -5.16 107.84 140 0.00 34.26 -5.95 141.11 145 0.00 37.57 -7.13 137.61 150 0.00 40.65 -8.23 134.50 155 0.00 43.43 -8.79 134.23 160 0.00 45.85 -9.27 132.92 165 0.00 47.85 -9.67 131.85 170 0.00 49.34 -9.97 131.05 175 0.00 50.27 -10.10 130.70 180 0.00 50.59 -10.10 130.70 185 0.00 50.27 -10.10 130.70 Frequency Coordination and Interference Analysis Report 06/12/2019 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 MARCH AFB, CA Licensee Name Allen Holdings, Inc Latitude (NAD 83) 33° 54' 21.7" N Longitude (NAD 83) 117° 14' 57.8" W Ground Elevation (AMSL) 468.5 m / 1537.1 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Andrew Corporation ESA9.3-46 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 -14.7 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0.00 49.34 -9.97 131.05 195 0.27 47.61 -9.62 126.36 200 0.55 45.47 -9.19 106.88 205 0.48 43.85 -8.87 111.39 210 0.44 42.63 -8.63 115.54 215 0.56 41.69 -8.44 108.12 220 0.56 41.37 -8.37 108.57 225 0.55 41.54 -8.41 108.86 230 0.50 42.24 -8.55 110.90 235 0.51 43.34 -8.77 109.68 240 0.54 44.86 -9.07 107.53 245 0.60 46.74 -9.45 103.74 250 0.66 48.97 -9.89 100.00 255 0.74 51.47 -10.10 100.00 260 0.77 54.27 -10.10 100.00 265 0.73 57.32 -10.10 100.00 270 0.72 60.52 -10.10 100.00 275 0.54 63.93 -10.10 104.98 280 0.33 67.45 -10.10 120.12 285 0.22 71.00 -10.10 128.69 290 0.00 74.64 -10.10 130.70 295 0.00 78.28 -10.10 130.70 300 0.00 81.95 -10.10 130.70 305 0.23 85.64 -10.10 128.52 310 0.00 89.37 -10.10 130.70 315 0.00 93.09 -10.10 130.70 320 0.22 96.82 -10.10 128.95 325 0.58 100.58 -10.10 103.18 330 2.92 104.77 -10.10 100.00 335 3.88 108.80 -10.10 100.00 340 2.69 112.17 -11.40 100.00 345 1.57 115.33 -13.37 100.00 350 0.61 114.47 -12.78 100.00 355 0.56 109.60 -10.10 103.72 Frequency Coordination and Interference Analysis Report 06/12/2019 Page 10 of 11

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. Timothy O. Crutcher Frequency Planner COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: June 12, 2019 Frequency Coordination and Interference Analysis Report 06/12/2019 Page 11 of 11


Document Created: 2019-06-13 17:32:07
Document Modified: 2019-06-13 17:32:07
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