Attachment Freq. Coord. Rpt.

This document pretains to SES-REG-20160525-00453 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREG2016052500453_1134756

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Google Fiber, Inc. AUSTIN, TX Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 February 08, 2016

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 02/08/2016 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 02/08/2016 Page 3 of 10

2. SUMMARY OF RESULTS There were no great circle interference cases identified during the interference study of the proposed earth station. No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 02/08/2016 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 carriers with a letter dated 12/30/2015. Frequency Coordination and Interference Analysis Report 02/08/2016 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 02/08/2016 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 02/08/2016 Job Number: 151230COMSTC01 Administrative Information Licensee Name Google Fiber, Inc. Site Information AUSTIN, TX Latitude (NAD 83) 30° 12' 4.1" N Longitude (NAD 83) 97° 42' 47.5" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 181.05 m / 594.0 ft Link Information Satellite Type Geostationary Mode RO - Receive-Only Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 123.0° to 243.5° Corresponding Elevation Angles 36.1° / 29.9° Antenna Centerline (AGL) 4.27 m / 14.0 ft Antenna Information Receive Manufacturer Simulsat Gain / Diameter 46.8 dBi / 7.0 m 3-dB / 15-dB Beamwidth 0.70° / 1.42° Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Frequency Information Receive 4.0 GHz Emission / Frequency Range (MHz) 36M0F8W / 3700.0 - 4200.0 Max Great Circle Coordination Distance 320.3 km / 199.0 mi Precipitation Scatter Contour Radius 489.2 km / 303.9 mi Frequency Coordination and Interference Analysis Report 02/08/2016 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 AUSTIN, TX Licensee Name Google Fiber, Inc. Latitude (NAD 83) 30° 12' 4.1" N Longitude (NAD 83) 97° 42' 47.5" W Ground Elevation (AMSL) 181.05 m / 594.0 ft Antenna Model FCC Reference 32-25LOG(THETA) Antenna Mode Receive 4.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Receive 4.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 112.73 -10.00 285.28 5 0.00 112.32 -10.00 285.28 10 0.00 108.44 -10.00 285.28 15 0.00 104.49 -10.00 285.28 20 0.00 100.51 -10.00 285.28 25 0.00 96.49 -10.00 285.28 30 0.00 92.46 -10.00 285.28 35 0.00 88.42 -10.00 285.28 40 0.00 84.39 -10.00 285.28 45 0.00 80.37 -10.00 285.28 50 0.00 76.38 -10.00 285.28 55 0.00 72.42 -10.00 285.28 60 0.00 68.52 -10.00 285.28 65 0.00 64.69 -10.00 285.28 70 0.00 60.95 -10.00 285.28 75 0.00 57.31 -10.00 285.28 80 0.00 53.82 -10.00 285.28 85 0.00 50.49 -10.00 285.28 90 0.00 47.38 -9.89 285.98 95 0.00 44.53 -9.22 290.32 100 0.00 41.98 -8.58 294.49 105 0.00 39.82 -8.00 298.30 110 0.00 38.10 -7.52 301.53 115 0.00 36.88 -7.17 303.91 120 0.00 36.23 -6.98 305.24 125 0.00 36.16 -6.96 305.38 130 0.00 36.69 -7.11 304.30 135 0.00 37.79 -7.43 302.13 140 0.00 39.40 -7.89 299.07 145 0.00 41.48 -8.44 295.37 150 0.00 43.94 -9.07 291.26 155 0.00 46.73 -9.74 286.94 160 0.00 49.43 -10.00 285.28 165 0.00 51.67 -10.00 285.28 170 0.25 53.15 -10.00 279.49 175 0.26 54.19 -10.00 278.10 180 0.00 54.80 -10.00 285.28 185 0.00 54.44 -10.00 285.28 Frequency Coordination and Interference Analysis Report 02/08/2016 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 AUSTIN, TX Licensee Name Google Fiber, Inc. Latitude (NAD 83) 30° 12' 4.1" N Longitude (NAD 83) 97° 42' 47.5" W Ground Elevation (AMSL) 181.05 m / 594.0 ft Antenna Centerline (AGL) 4.27 m / 14.0 ft Antenna Mode Receive 4.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Receive 4.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0.00 53.37 -10.00 285.28 195 0.00 51.67 -10.00 285.28 200 0.00 49.42 -10.00 285.28 205 0.00 46.73 -9.74 286.94 210 0.00 43.67 -9.01 291.68 215 0.00 40.40 -8.16 297.26 220 0.00 37.37 -7.31 302.94 225 0.00 34.73 -6.52 308.40 230 0.00 32.57 -5.82 313.88 235 0.00 31.00 -5.28 317.67 240 0.00 30.11 -4.97 319.92 245 0.00 29.95 -4.91 320.32 250 0.00 30.55 -5.12 318.80 255 0.00 31.85 -5.58 315.59 260 0.21 33.60 -6.16 309.25 265 0.21 36.07 -6.93 304.01 270 0.26 38.94 -7.76 292.30 275 0.00 42.34 -8.67 293.89 280 0.00 45.82 -9.53 288.31 285 0.21 49.40 -10.00 283.38 290 0.26 53.24 -10.00 278.24 295 0.27 57.23 -10.00 276.83 300 0.27 61.32 -10.00 276.05 305 0.25 65.48 -10.00 278.38 310 0.25 69.71 -10.00 279.36 315 0.23 73.98 -10.00 281.13 320 0.00 78.31 -10.00 285.28 325 0.21 82.60 -10.00 283.63 330 0.23 86.94 -10.00 281.43 335 0.00 91.28 -10.00 285.28 340 0.00 95.61 -10.00 285.28 345 0.00 99.93 -10.00 285.28 350 0.00 104.23 -10.00 285.28 355 0.00 108.50 -10.00 285.28 Frequency Coordination and Interference Analysis Report 02/08/2016 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. Timothy O. Crutcher Frequency Planner COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: February 08, 2016 Frequency Coordination and Interference Analysis Report 02/08/2016 Page 10 of 10


Document Created: 2016-02-08 11:43:35
Document Modified: 2016-02-08 11:43:35
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