Attachment Coordination report

This document pretains to SES-MOD-20190614-00779 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2019061400779_1731220

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Denali 20020, LLC BREWSTER, WA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 June 13, 2019

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 06/13/2019 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 06/13/2019 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. Frequency Coordination and Interference Analysis Report 06/13/2019 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 05/08/2019. Company Apple Valley Broadcasting Inc. (KVEW-TV) Cascade Public Media Christian Broadcasting of Yakima Falcon Video Communications, L.P. Friends of KSPS KHQ, Incorporated KIRO-TV, Inc KSKN Television, Inc. King Broadcasting Company King Broadcasting Company - KREM TV King, County of Kootenai Cablevision Mountain Broadcasting L.L.C. Mountain Licenses, L.P. Puget Sound Educational TV, Inc. SBE Coordinator Sinclair Seattle Licensee, LLC Sinclair Yakima Licensee, LLC ( WA) Spokane Television Inc. State Board of Education State of Idaho Tribune Broadcasting Seattle, LLC Washington State University Frequency Coordination and Interference Analysis Report 06/13/2019 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 06/13/2019 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 05/08/2019 Job Number: 190508COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign E120043 Licensee Code DENALI Licensee Name Denali 20020, LLC Site Information BREWSTER, WA Venue Name Latitude (NAD 83) 48° 8' 47.0" N Longitude (NAD 83) 119° 41' 29.0" W Climate Zone A Rain Zone 5 Ground Elevation (AMSL) 380.0 m / 1246.7 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 53° W to 188° West Longitude Azimuth Range 107.8° to 253.5° Corresponding Elevation Angles 6.7° / 5.6° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Vertex Vertex Model 9 KPK 9 KPK Gain / Diameter 59.2 dBi / 9.0 m 60.4 dBi / 9.0 m 3-dB / 15-dB Beamwidth 0.20° / 0.38° 0.16° / 0.32° Max Available RF Power (dBW/4 kHz) -14.0 (dBW/MHz) 10.0 Maximum EIRP (dBW/4 kHz) 46.4 (dBW/MHz) 70.4 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 12.0 GHz Transmit 14.0 GHz Emission / Frequency Range (MHz) 1M00G7D - 72M0G7W / 12250.0 - 12750.0 1M00G7D - 72M0G7W / 14000.0 - 14500.0 Max Great Circle Coordination Distance 606.4 km / 376.8 mi 273.4 km / 169.9 mi Precipitation Scatter Contour Radius 410.9 km / 255.3 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 06/13/2019 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 BREWSTER, WA Licensee Name Denali 20020, LLC Latitude (NAD 83) 48° 8' 47.0" N Longitude (NAD 83) 119° 41' 29.0" W Ground Elevation (AMSL) 380.0 m / 1246.7 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Vertex 9 meter Antenna Mode Receive 12.0 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 -14.0 (dBW/4 kHz) Receive 12.0 GHz Transmit 14.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.83 106.45 -10.00 186.23 -10.00 100.00 5 0.93 102.73 -10.00 180.79 -10.00 100.00 10 0.69 97.75 -10.00 193.34 -10.00 100.00 15 1.31 92.78 -10.00 166.83 -10.00 100.00 20 1.66 87.80 -10.00 153.23 -10.00 100.00 25 0.58 82.84 -10.00 198.96 -10.00 100.00 30 0.55 77.87 -10.00 200.58 -10.00 100.00 35 0.74 72.89 -10.00 190.80 -10.00 100.00 40 1.23 67.90 -10.00 169.69 -10.00 100.00 45 1.62 62.91 -10.00 154.36 -10.00 100.00 50 1.44 57.94 -10.00 159.95 -10.00 100.00 55 1.86 52.95 -10.00 147.31 -10.00 100.00 60 1.73 47.99 -10.00 150.96 -10.00 100.00 65 2.19 42.98 -8.83 143.99 -8.83 100.00 70 2.20 38.02 -7.50 149.75 -7.50 100.00 75 2.42 33.04 -5.98 151.85 -5.98 100.00 80 2.63 28.06 -4.20 155.56 -4.20 100.00 85 2.57 23.14 -2.11 170.77 -2.11 100.00 90 2.79 18.20 0.50 179.09 0.50 100.00 95 2.88 13.34 3.87 193.83 3.87 100.00 100 2.68 8.75 8.45 217.43 8.45 100.00 105 2.36 5.14 14.24 260.08 14.24 107.21 110 2.22 4.97 14.60 415.26 14.60 176.92 115 2.23 7.96 9.48 233.36 9.48 100.00 120 2.58 10.72 6.24 208.56 6.24 100.00 125 2.68 13.58 3.68 197.10 3.68 100.00 130 1.85 17.06 1.20 203.57 1.20 100.00 135 1.04 20.42 -0.75 214.13 -0.75 100.00 140 0.42 23.47 -2.26 241.83 -2.26 118.38 145 0.27 25.94 -3.35 251.96 -3.35 127.23 150 0.00 28.31 -4.30 254.46 -4.30 130.29 155 0.00 30.17 -4.99 251.01 -4.99 128.49 160 0.00 31.76 -5.55 248.28 -5.55 127.06 165 0.00 33.03 -5.97 246.22 -5.97 125.97 170 0.00 33.96 -6.27 244.76 -6.27 125.19 175 0.00 34.52 -6.45 243.90 -6.45 124.74 180 0.00 34.71 -6.51 243.11 -6.51 124.58 185 0.00 34.52 -6.45 243.90 -6.45 124.73 Frequency Coordination and Interference Analysis Report 06/13/2019 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 BREWSTER, WA Licensee Name Denali 20020, LLC Latitude (NAD 83) 48° 8' 47.0" N Longitude (NAD 83) 119° 41' 29.0" W Ground Elevation (AMSL) 380.0 m / 1246.7 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Vertex 9 meter Antenna Mode Receive 12.0 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 -14.0 (dBW/4 kHz) Receive 12.0 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 33.96 -6.27 244.76 -6.27 125.19 195 0.00 33.03 -5.97 246.21 -5.97 125.96 200 0.00 31.76 -5.55 248.29 -5.55 127.06 205 0.00 30.18 -4.99 251.01 -4.99 128.49 210 0.00 28.31 -4.30 254.46 -4.30 130.29 215 0.00 26.18 -3.45 258.72 -3.45 131.27 220 0.00 23.84 -2.43 263.93 -2.43 134.06 225 0.00 21.29 -1.20 270.33 -1.20 137.59 230 0.00 18.59 0.27 278.21 0.27 142.07 235 0.00 15.73 2.08 288.13 2.08 147.92 240 0.00 12.76 4.35 298.21 4.35 155.82 245 0.22 9.53 7.52 316.03 7.52 166.92 250 0.45 6.24 12.13 461.74 12.13 209.15 255 1.75 4.15 16.55 606.43 16.55 273.40 260 1.66 7.61 9.96 252.57 9.96 108.04 265 2.30 11.97 5.05 208.54 5.05 100.00 270 2.95 16.71 1.42 180.02 1.42 100.00 275 3.28 21.63 -1.37 154.92 -1.37 100.00 280 3.45 26.59 -3.62 140.26 -3.62 100.00 285 3.30 31.58 -5.49 135.02 -5.49 100.00 290 3.07 36.58 -7.08 133.07 -7.08 100.00 295 1.87 41.64 -8.49 153.84 -8.49 100.00 300 1.58 46.64 -9.72 156.94 -9.72 100.00 305 2.06 51.59 -10.00 141.81 -10.00 100.00 310 1.81 56.59 -10.00 148.75 -10.00 100.00 315 1.83 61.57 -10.00 148.08 -10.00 100.00 320 2.08 66.55 -10.00 141.42 -10.00 100.00 325 1.85 71.55 -10.00 147.58 -10.00 100.00 330 2.25 76.53 -10.00 137.84 -10.00 100.00 335 1.60 81.53 -10.00 154.98 -10.00 100.00 340 1.14 86.52 -10.00 172.54 -10.00 100.00 345 0.62 91.50 -10.00 196.79 -10.00 100.00 350 0.00 96.47 -10.00 227.19 -10.00 115.80 355 0.00 101.45 -10.00 227.19 -10.00 115.80 Frequency Coordination and Interference Analysis Report 06/13/2019 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: June 13, 2019 Frequency Coordination and Interference Analysis Report 06/13/2019 Page 10 of 10


Document Created: 2019-06-13 10:28:34
Document Modified: 2019-06-13 10:28:34
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