Attachment CoordinationReport

This document pretains to SES-MOD-20180323-00270 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2018032300270_1360805

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Roberts Communications Network, LLC DANIA, FL Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 March 23, 2018

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 03/23/2018 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 03/23/2018 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. 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 Verizon Wireless Personal Comm, LP(S FL) No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 03/23/2018 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 01/12/2018. Company Broward County Board of Commissioners COLLIER, COUNTY OF Computer Office Solutions, Inc. Embarq Florida, Inc. Florida Power and Light Company Florida Rural Broadband Alliance, LLC Florida State GM Consulting Group, Inc. HiQ Data Corporation Martin County Sheriffs Office Miami-Dade County New Cingular Wireless PCS LLC - N FL New Cingular Wireless PCS LLC - S FL Olympic Wireless, LLC Palm Beach, County of South Florida Water Management District T-Mobile License LLC Verizon Wireless (VAW) LLC - S Florida Verizon Wireless Personal Comm, LP(S FL) Frequency Coordination and Interference Analysis Report 03/23/2018 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 03/23/2018 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 03/23/2018 Job Number: 180112COMSTC08 Administrative Information Call Sign E980130 Licensee Code ROBCOM Licensee Name Roberts Communications Network, LLC Site Information DANIA, FL Venue Name Latitude (NAD 83) 26° 3' 13.0" N Longitude (NAD 83) 80° 8' 15.5" W Climate Zone B Rain Zone 1 Ground Elevation (AMSL) 0.81 m / 2.7 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 140.1° to 257.3° Corresponding Elevation Angles 52.2° / 15.8° Antenna Centerline (AGL) 9.75 m / 32.0 ft Antenna Information Receive - C40551 Transmit - C60551 Manufacturer COMTECH ANTENNA SYSTEMS COMTECH ANTENNA SYSTEMS Model 5 METER OFFSAT 5 METER OFFSAT Gain / Diameter 42.0 dBi / 5.5 m 45.9 dBi / 5.5 m 3-dB / 15-dB Beamwidth 1.00° / 2.00° 0.60° / 1.60° 1M20G7W - 36M0G7W Max Available RF Power (dBW/4 kHz) -15.0 -14.77 (dBW/MHz) 9.0 9.23 Maximum EIRP (dBW/4 kHz) 30.9 31.13 (dBW/MHz) 54.9 55.13 (dBW) 55.67 70.67 Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Frequency Information Receive 4.0 GHz Transmit 6.1 GHz Emission / Frequency Range (MHz) 1M20G7W - 36M0G7W / 3700.0 - 4200.0 1M20G7W - 36M0G7W / 5924.0 - 6425.0 Max Great Circle Coordination Distance 543.4 km / 337.6 mi 162.4 km / 100.9 mi Precipitation Scatter Contour Radius 595.2 km / 369.8 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 03/23/2018 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 DANIA, FL Licensee Name Roberts Communications Network, LLC Latitude (NAD 83) 26° 3' 13.0" N Longitude (NAD 83) 80° 8' 15.5" W Ground Elevation (AMSL) 0.81 m / 2.7 ft Antenna Centerline (AGL) 9.75 m / 32.0 ft Antenna Model COMTECH ANTENNA SYSTEMS 5 METER OFFSAT Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -15.0 (dBW/4 kHz) Receive 4.0 GHz Transmit 6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 102.20 -8.44 432.03 -8.12 149.43 5 0.00 107.00 -9.40 419.72 -9.70 143.36 10 0.00 111.78 -10.36 407.80 -12.81 132.19 15 0.00 110.66 -10.13 410.55 -12.37 133.71 20 0.00 107.93 -9.59 417.37 -10.44 140.55 25 0.00 105.10 -9.02 424.55 -8.18 149.20 30 0.00 102.19 -8.44 432.06 -8.13 149.41 35 0.00 99.22 -8.00 437.78 -8.17 149.23 40 0.00 96.20 -8.07 436.83 -8.19 149.14 45 0.00 93.15 -8.05 437.12 -8.16 149.28 50 0.00 90.09 -8.08 436.69 -8.20 149.10 55 0.00 87.03 -8.03 437.36 -8.14 149.35 60 0.00 83.98 -8.08 436.74 -8.19 149.15 65 0.00 80.96 -8.02 437.59 -8.23 149.00 70 0.00 77.98 -8.03 437.35 -8.25 148.90 75 0.00 75.07 -8.07 436.82 -8.27 148.82 80 0.00 72.23 -8.11 436.36 -8.22 149.03 85 0.00 69.49 -8.08 436.68 -8.11 149.47 90 0.00 66.87 -8.04 437.23 -8.14 149.37 95 0.00 64.38 -8.01 437.65 -8.20 149.13 100 0.00 62.05 -8.08 436.68 -8.27 148.82 105 0.00 59.91 -8.04 437.25 -8.17 149.22 110 0.00 57.98 -8.09 436.65 -8.11 149.48 115 0.00 56.29 -8.04 437.28 -8.10 149.52 120 0.00 54.86 -8.04 437.22 -8.15 149.33 125 0.00 53.72 -8.09 436.68 -8.21 149.06 130 0.00 52.88 -8.05 437.16 -8.17 149.23 135 0.00 52.37 -8.08 436.78 -8.18 149.19 140 0.00 52.19 -8.04 437.29 -8.21 149.07 145 0.00 52.35 -8.03 437.38 -8.11 149.49 150 0.00 52.84 -8.03 437.43 -8.13 149.41 155 0.00 53.66 -8.03 437.46 -8.73 147.11 160 0.00 54.79 -8.59 430.04 -9.10 145.67 165 0.00 56.20 -9.56 417.75 -9.66 143.52 170 0.00 57.87 -11.03 399.58 -10.62 139.91 175 0.00 59.12 -12.48 382.69 -11.58 136.44 180 0.00 59.55 -13.44 371.91 -12.54 133.11 185 0.00 59.12 -13.82 367.70 -13.10 131.24 Frequency Coordination and Interference Analysis Report 03/23/2018 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 DANIA, FL Licensee Name Roberts Communications Network, LLC Latitude (NAD 83) 26° 3' 13.0" N Longitude (NAD 83) 80° 8' 15.5" W Ground Elevation (AMSL) 0.81 m / 2.7 ft Antenna Centerline (AGL) 9.75 m / 32.0 ft Antenna Model COMTECH ANTENNA SYSTEMS 5 METER OFFSAT Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -15.0 (dBW/4 kHz) Receive 4.0 GHz Transmit 6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 57.87 -13.57 370.45 -13.10 131.24 195 0.00 55.89 -13.18 374.81 -13.10 131.24 200 0.00 53.32 -12.33 384.40 -12.76 132.36 205 0.00 50.30 -11.12 398.58 -12.16 134.42 210 0.00 46.91 -10.38 407.49 -12.10 134.62 215 0.00 43.26 -9.65 416.55 -11.75 135.84 220 0.00 39.40 -8.88 426.34 -10.86 139.03 225 0.00 35.38 -8.08 436.79 -9.25 145.07 230 0.00 31.25 -8.00 437.80 -7.60 151.58 235 0.00 27.12 -6.85 453.29 -7.10 153.66 240 0.00 23.29 -5.32 474.06 -6.42 156.59 245 0.00 19.95 -3.96 493.84 -5.10 162.43 250 0.00 17.39 -1.91 525.33 -5.10 162.43 255 0.00 15.99 -0.79 543.41 -5.10 162.43 260 0.00 16.05 -0.84 542.66 -5.10 162.43 265 0.00 17.55 -2.04 523.33 -5.10 162.43 270 0.00 20.18 -4.07 492.19 -5.17 162.10 275 0.00 23.56 -5.43 472.49 -6.53 156.11 280 0.00 27.42 -6.97 451.63 -7.10 153.66 285 0.00 31.58 -8.00 437.80 -7.73 151.03 290 0.00 35.93 -8.03 437.45 -8.19 149.15 295 0.00 40.42 -8.07 436.81 -8.17 149.24 300 0.00 44.99 -8.07 436.89 -8.14 149.38 305 0.00 49.64 -8.02 437.52 -8.15 149.34 310 0.00 54.33 -8.05 437.10 -8.21 149.08 315 0.00 59.05 -8.08 436.78 -8.11 149.48 320 0.00 63.80 -8.05 437.17 -8.15 149.33 325 0.00 68.58 -8.04 437.26 -8.13 149.40 330 0.00 73.36 -8.05 437.17 -8.20 149.14 335 0.00 78.16 -8.01 437.66 -8.17 149.22 340 0.00 82.97 -8.04 437.31 -8.18 149.19 345 0.00 87.78 -8.04 437.28 -8.18 149.21 350 0.00 92.59 -8.03 437.42 -8.17 149.24 355 0.00 97.40 -8.05 437.18 -8.12 149.46 Frequency Coordination and Interference Analysis Report 03/23/2018 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: March 23, 2018 Frequency Coordination and Interference Analysis Report 03/23/2018 Page 10 of 10


Document Created: 2018-03-23 15:49:31
Document Modified: 2018-03-23 15:49:31
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