Attachment Coordination Reports

This document pretains to SES-STA-20110527-00642 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2011052700642_891261

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Digital Latin America, LLC CORAL SPRING, FL (9.1 Meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 26, 2011

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 05/26/2011 Page 2 of 30

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 05/26/2011 Page 3 of 30

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 New Cingular Wireless PCS LLC - S FL South Florida Water Management District Verizon Wireless Personal Comm, LP(S FL) No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 05/26/2011 Page 4 of 30

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 04/25/2011. Company Alltel Wireless Holdings, LLC. Embarq Florida, Inc. FLORIDA POWER AND LIGHT COMPANY Florida RSA No. 2B (Indian River) LP Harris Corporation - Orlando, FL LEE COUNTY, FLORIDA - BOCC METROPOLITAN AREA NETWORKS, INC. Miami-Dade County New Cingular Wireless PCS LLC - N FL New Cingular Wireless PCS LLC - S FL Palm Beach County Facilities Dev & Ops Saint Lucie, County of South Florida Water Management District Sun Broadcasting, Inc. Verizon Wireless Personal Comm, LP(S FL) Frequency Coordination and Interference Analysis Report 05/26/2011 Page 5 of 30

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 05/26/2011 Page 6 of 30

Date: 05/26/2011 Job Number: 110425COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code DIGLAT Licensee Name Digital Latin America, LLC Site Information CORAL SPRINGS, FL Venue Name Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Climate Zone A Rain Zone 1 Ground Elevation (AMSL) 2.74 m / 9.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 6° W to 143° West Longitude Azimuth Range 97.1° to 257.1° Corresponding Elevation Angles 5.4° / 15.9° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Andrew Andrew Model 9.1 Meter ESA 9.1 Meter ESA Gain / Diameter 50.5 dBi / 9.1 m 53.9 dBi / 9.1 m 3-dB / 15-dB Beamwidth 0.50° / 1.00° 0.32° / 0.62° Max Available RF Power (dBW/4 kHz) -3.8 (dBW/MHz) 20.2 Maximum EIRP (dBW/4 kHz) 50.1 (dBW/MHz) 74.1 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) 43K9G7D - 8M00G7D / 3700.0 - 4200.0 43K9G7D - 8M00G7D / 5925.0 - 6425.0 Max Great Circle Coordination Distance 663.4 km / 412.2 mi 383.4 km / 238.2 mi Precipitation Scatter Contour Radius 719.2 km / 446.9 mi 125.0 km / 77.7 mi Frequency Coordination and Interference Analysis Report 05/26/2011 Page 7 of 30

Coordination Values CORAL SPRING, FL Licensee Name Digital Latin America, LLC Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Ground Elevation (AMSL) 2.74 m / 9.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Andrew 9.1 Meter 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 -3.8 (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 97.07 -10.00 285.28 -10.00 164.75 5 0.00 92.09 -10.00 285.28 -10.00 164.75 10 0.00 87.11 -10.00 285.28 -10.00 164.75 15 0.00 82.14 -10.00 285.28 -10.00 164.75 20 0.00 77.16 -10.00 285.28 -10.00 164.75 25 0.00 72.18 -10.00 285.28 -10.00 164.75 30 0.00 67.21 -10.00 285.28 -10.00 164.75 35 0.00 62.24 -10.00 285.28 -10.00 164.75 40 0.00 57.27 -10.00 285.28 -10.00 164.75 45 0.00 52.30 -10.00 285.28 -10.00 164.75 50 0.00 47.34 -9.88 286.05 -9.88 165.22 55 0.00 42.38 -8.68 293.82 -8.68 171.52 60 0.00 37.44 -7.33 302.82 -7.33 176.75 65 0.00 32.50 -5.80 314.04 -5.80 182.68 70 0.00 27.59 -4.02 326.70 -4.02 189.53 75 0.00 22.72 -1.91 342.18 -1.91 197.62 80 0.00 17.91 0.67 361.80 0.67 205.85 85 0.00 13.23 3.96 387.80 3.96 219.12 90 0.00 8.91 8.26 423.43 8.26 238.43 95 0.00 5.78 12.94 663.43 12.94 383.45 100 0.00 6.12 12.33 477.86 12.33 265.12 105 0.00 9.55 7.50 416.80 7.50 234.85 110 0.00 13.91 3.42 383.44 3.42 216.85 115 0.00 18.29 0.44 360.01 0.44 204.96 120 0.00 22.64 -1.87 342.47 -1.87 197.77 125 0.00 26.92 -3.75 328.64 -3.75 190.56 130 0.00 31.14 -5.33 317.33 -5.33 184.48 135 0.00 35.26 -6.68 307.26 -6.68 179.27 140 0.00 39.26 -7.85 299.33 -7.85 174.74 145 0.00 43.10 -8.86 292.62 -8.86 170.80 150 0.00 46.74 -9.74 286.93 -9.74 165.75 155 0.00 50.10 -10.00 285.28 -10.00 164.75 160 0.00 53.11 -10.00 285.28 -10.00 164.75 165 0.00 55.66 -10.00 285.28 -10.00 164.75 170 0.00 57.62 -10.00 285.28 -10.00 164.75 175 0.00 58.86 -10.00 285.28 -10.00 164.75 180 0.00 59.29 -10.00 285.28 -10.00 164.75 185 0.00 58.86 -10.00 285.28 -10.00 164.75 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 8 of 30

Coordination Values CORAL SPRING, FL Licensee Name Digital Latin America, LLC Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Ground Elevation (AMSL) 2.74 m / 9.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Andrew 9.1 Meter 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 -3.8 (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 57.62 -10.00 285.28 -10.00 164.75 195 0.00 55.66 -10.00 285.28 -10.00 164.75 200 0.00 53.11 -10.00 285.28 -10.00 164.75 205 0.00 50.10 -10.00 285.28 -10.00 164.75 210 0.00 46.74 -9.74 286.93 -9.74 165.75 215 0.00 43.10 -8.86 292.62 -8.86 170.80 220 0.00 39.26 -7.85 299.34 -7.85 174.74 225 0.00 35.26 -6.68 307.27 -6.68 179.27 230 0.00 31.14 -5.33 317.33 -5.33 184.48 235 0.00 27.02 -3.79 328.35 -3.79 190.41 240 0.00 23.22 -2.14 340.43 -2.14 196.72 245 0.00 19.91 -0.48 352.96 -0.48 203.08 250 0.00 17.40 0.99 364.22 0.99 207.06 255 0.00 16.05 1.86 371.07 1.86 210.50 260 0.00 16.16 1.79 370.48 1.79 210.20 265 0.00 17.71 0.80 362.74 0.80 206.32 270 0.00 20.36 -0.72 351.12 -0.72 202.16 275 0.00 23.75 -2.39 338.59 -2.39 195.77 280 0.00 27.61 -4.03 326.64 -4.03 189.50 285 0.00 31.77 -5.55 315.78 -5.55 183.63 290 0.00 36.13 -6.95 305.45 -6.95 178.25 295 0.00 40.61 -8.22 296.88 -8.22 173.32 300 0.00 45.19 -9.37 289.29 -9.37 168.81 305 0.00 49.83 -10.00 285.28 -10.00 164.75 310 0.00 54.51 -10.00 285.28 -10.00 164.75 315 0.00 59.24 -10.00 285.28 -10.00 164.75 320 0.00 63.99 -10.00 285.28 -10.00 164.75 325 0.00 68.76 -10.00 285.28 -10.00 164.75 330 0.00 73.55 -10.00 285.28 -10.00 164.75 335 0.00 78.34 -10.00 285.28 -10.00 164.75 340 0.00 83.14 -10.00 285.28 -10.00 164.75 345 0.00 87.95 -10.00 285.28 -10.00 164.75 350 0.00 92.76 -10.00 285.28 -10.00 164.75 355 0.00 97.57 -10.00 285.28 -10.00 164.75 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 9 of 30

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: May 26, 2011 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 10 of 30

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Digital Latin America, LLC CORAL SPRING, FL (7.6 Meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 26, 2011 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 11 of 30

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 05/26/2011 Page 12 of 30

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 05/26/2011 Page 13 of 30

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 New Cingular Wireless PCS LLC - S FL South Florida Water Management District Verizon Wireless Personal Comm, LP(S FL) No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 05/26/2011 Page 14 of 30

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 04/25/2011. Company Alltel Wireless Holdings, LLC. Embarq Florida, Inc. FLORIDA POWER AND LIGHT COMPANY Florida RSA No. 2B (Indian River) LP Harris Corporation - Orlando, FL LEE COUNTY, FLORIDA - BOCC METROPOLITAN AREA NETWORKS, INC. Miami-Dade County New Cingular Wireless PCS LLC - N FL New Cingular Wireless PCS LLC - S FL Palm Beach County Facilities Dev & Ops Saint Lucie, County of South Florida Water Management District Sun Broadcasting, Inc. Verizon Wireless Personal Comm, LP(S FL) Frequency Coordination and Interference Analysis Report 05/26/2011 Page 15 of 30

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 05/26/2011 Page 16 of 30

Date: 05/26/2011 Job Number: 110425COMSGE03 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code DIGLAT Licensee Name Digital Latin America, LLC Site Information CORAL SPRINGS, FL Venue Name Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Climate Zone A Rain Zone 1 Ground Elevation (AMSL) 2.74 m / 9.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 6° W to 143° West Longitude Azimuth Range 97.1° to 257.1° Corresponding Elevation Angles 5.4° / 15.9° Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Andrew Andrew Model 7.6 Meter ESA 7.6 Meter ESA Gain / Diameter 49.0 dBi / 7.6 m 52.7 dBi / 7.6 m 3-dB / 15-dB Beamwidth 0.58° / 1.18° 0.40° / 0.76° Max Available RF Power (dBW/4 kHz) -2.7 (dBW/MHz) 21.3 Maximum EIRP (dBW/4 kHz) 50.0 (dBW/MHz) 74.0 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) 43K9G7D - 8M00G7D / 3700.0 - 4200.0 43K9G7D - 8M00G7D / 5925.0 - 6425.0 Max Great Circle Coordination Distance 640.2 km / 397.8 mi 382.8 km / 237.8 mi Precipitation Scatter Contour Radius 719.2 km / 446.9 mi 141.1 km / 87.7 mi Frequency Coordination and Interference Analysis Report 05/26/2011 Page 17 of 30

Coordination Values CORAL SPRING, FL Licensee Name Digital Latin America, LLC Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Ground Elevation (AMSL) 2.74 m / 9.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Andrew 7.6 Meter 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 -2.7 (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 97.07 -10.00 285.28 -10.00 170.66 5 0.00 92.09 -10.00 285.28 -10.00 170.66 10 0.00 87.11 -10.00 285.28 -10.00 170.66 15 0.00 82.14 -10.00 285.28 -10.00 170.66 20 0.00 77.16 -10.00 285.28 -10.00 170.66 25 0.00 72.18 -10.00 285.28 -10.00 170.66 30 0.00 67.21 -10.00 285.28 -10.00 170.66 35 0.00 62.24 -10.00 285.28 -10.00 170.66 40 0.00 57.27 -10.00 285.28 -10.00 170.66 45 0.00 52.30 -10.00 285.28 -10.00 170.66 50 0.00 47.34 -9.88 286.05 -9.88 171.12 55 0.00 42.38 -8.68 293.82 -8.68 175.79 60 0.00 37.44 -7.33 302.82 -7.33 181.01 65 0.00 32.50 -5.80 314.04 -5.80 186.92 70 0.00 27.59 -4.02 326.70 -4.02 193.75 75 0.00 22.72 -1.91 342.18 -1.91 201.82 80 0.00 17.91 0.67 361.80 0.67 210.15 85 0.00 13.23 3.96 387.80 3.96 223.85 90 0.00 8.91 8.26 423.43 8.26 243.73 95 0.00 5.78 12.94 640.21 12.94 382.79 100 0.00 6.12 12.33 474.45 12.33 269.95 105 0.00 9.55 7.50 416.80 7.50 240.05 110 0.00 13.91 3.42 383.44 3.42 221.51 115 0.00 18.29 0.44 360.01 0.44 209.23 120 0.00 22.64 -1.87 342.47 -1.87 201.97 125 0.00 26.92 -3.75 328.64 -3.75 194.78 130 0.00 31.14 -5.33 317.33 -5.33 188.72 135 0.00 35.26 -6.68 307.26 -6.68 183.52 140 0.00 39.26 -7.85 299.33 -7.85 179.01 145 0.00 43.10 -8.86 292.62 -8.86 175.08 150 0.00 46.74 -9.74 286.93 -9.74 171.66 155 0.00 50.10 -10.00 285.28 -10.00 170.66 160 0.00 53.11 -10.00 285.28 -10.00 170.66 165 0.00 55.66 -10.00 285.28 -10.00 170.66 170 0.00 57.62 -10.00 285.28 -10.00 170.66 175 0.00 58.86 -10.00 285.28 -10.00 170.66 180 0.00 59.29 -10.00 285.28 -10.00 170.66 185 0.00 58.86 -10.00 285.28 -10.00 170.66 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 18 of 30

Coordination Values CORAL SPRING, FL Licensee Name Digital Latin America, LLC Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Ground Elevation (AMSL) 2.74 m / 9.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Andrew 7.6 Meter 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 -2.7 (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 57.62 -10.00 285.28 -10.00 170.66 195 0.00 55.66 -10.00 285.28 -10.00 170.66 200 0.00 53.11 -10.00 285.28 -10.00 170.66 205 0.00 50.10 -10.00 285.28 -10.00 170.66 210 0.00 46.74 -9.74 286.93 -9.74 171.66 215 0.00 43.10 -8.86 292.62 -8.86 175.08 220 0.00 39.26 -7.85 299.34 -7.85 179.01 225 0.00 35.26 -6.68 307.27 -6.68 183.52 230 0.00 31.14 -5.33 317.33 -5.33 188.72 235 0.00 27.02 -3.79 328.35 -3.79 194.63 240 0.00 23.22 -2.14 340.43 -2.14 200.92 245 0.00 19.91 -0.48 352.96 -0.48 205.65 250 0.00 17.40 0.99 364.22 0.99 211.40 255 0.00 16.05 1.86 371.07 1.86 214.96 260 0.00 16.16 1.79 370.48 1.79 214.65 265 0.00 17.71 0.80 362.74 0.80 210.63 270 0.00 20.36 -0.72 351.12 -0.72 204.72 275 0.00 23.75 -2.39 338.59 -2.39 199.98 280 0.00 27.61 -4.03 326.64 -4.03 193.72 285 0.00 31.77 -5.55 315.78 -5.55 187.87 290 0.00 36.13 -6.95 305.45 -6.95 182.50 295 0.00 40.61 -8.22 296.88 -8.22 177.59 300 0.00 45.19 -9.37 289.29 -9.37 173.09 305 0.00 49.83 -10.00 285.28 -10.00 170.66 310 0.00 54.51 -10.00 285.28 -10.00 170.66 315 0.00 59.24 -10.00 285.28 -10.00 170.66 320 0.00 63.99 -10.00 285.28 -10.00 170.66 325 0.00 68.76 -10.00 285.28 -10.00 170.66 330 0.00 73.55 -10.00 285.28 -10.00 170.66 335 0.00 78.34 -10.00 285.28 -10.00 170.66 340 0.00 83.14 -10.00 285.28 -10.00 170.66 345 0.00 87.95 -10.00 285.28 -10.00 170.66 350 0.00 92.76 -10.00 285.28 -10.00 170.66 355 0.00 97.57 -10.00 285.28 -10.00 170.66 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 19 of 30

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: May 26, 2011 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 20 of 30

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Digital Latin America, LLC CORAL SPRINGS, FL (6.5 Meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 26, 2011 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 21 of 30

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 05/26/2011 Page 22 of 30

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 05/26/2011 Page 23 of 30

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 New Cingular Wireless PCS LLC - S FL South Florida Water Management District No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 05/26/2011 Page 24 of 30

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 04/25/2011. Company Alltel Wireless Holdings, LLC. Embarq Florida, Inc. FLORIDA POWER AND LIGHT COMPANY Florida RSA No. 2B (Indian River) LP Harris Corporation - Orlando, FL LEE COUNTY, FLORIDA - BOCC METROPOLITAN AREA NETWORKS, INC. Miami-Dade County New Cingular Wireless PCS LLC - N FL New Cingular Wireless PCS LLC - S FL Palm Beach County Facilities Dev & Ops Saint Lucie, County of South Florida Water Management District Sun Broadcasting, Inc. Verizon Wireless Personal Comm, LP(S FL) Frequency Coordination and Interference Analysis Report 05/26/2011 Page 25 of 30

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 05/26/2011 Page 26 of 30

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 05/26/2011 Job Number: 110425COMSGE04 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code DIGLAT Licensee Name Digital Latin America, LLC Site Information CORAL SPRINGS, FL Venue Name Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Climate Zone A Rain Zone 1 Ground Elevation (AMSL) 2.74 m / 9.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 6° W to 143° West Longitude Azimuth Range 97.1° to 257.1° Corresponding Elevation Angles 5.4° / 15.9° Antenna Centerline (AGL) 6.1 m / 20.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer ASC Signal ASC Signal Model 6.5 ESA 6.5 ESA Gain / Diameter 47.4 dBi / 6.5 m 50.9 dBi / 6.5 m 3-dB / 15-dB Beamwidth 0.80° / 1.90° 0.52° / 1.30° Max Available RF Power (dBW/4 kHz) -4.4 (dBW/MHz) 19.6 Maximum EIRP (dBW/4 kHz) 46.5 (dBW/MHz) 70.5 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) 43K9G7D - 8M00G7D / 3700.0 - 4200.0 43K9G7D - 8M00G7D / 5925.0 - 6425.0 Max Great Circle Coordination Distance 617.5 km / 383.6 mi 348.8 km / 216.7 mi Precipitation Scatter Contour Radius 719.2 km / 446.9 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 05/26/2011 Page 27 of 30

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values CORAL SPRING, FL Licensee Name Digital Latin America, LLC Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Ground Elevation (AMSL) 2.74 m / 9.0 ft Antenna Centerline (AGL) 6.1 m / 20.0 ft Antenna Model ASC Signal 6.5 Meter 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 -4.4 (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 97.07 -10.00 285.28 -10.00 162.46 5 0.00 92.09 -10.00 285.28 -10.00 162.46 10 0.00 87.11 -10.00 285.28 -10.00 162.46 15 0.00 82.14 -10.00 285.28 -10.00 162.46 20 0.00 77.16 -10.00 285.28 -10.00 162.46 25 0.00 72.18 -10.00 285.28 -10.00 162.46 30 0.00 67.21 -10.00 285.28 -10.00 162.46 35 0.00 62.24 -10.00 285.28 -10.00 162.46 40 0.00 57.27 -10.00 285.28 -10.00 162.46 45 0.00 52.30 -10.00 285.28 -10.00 162.46 50 0.00 47.34 -9.88 286.05 -9.88 162.91 55 0.00 42.38 -8.68 293.82 -8.68 169.18 60 0.00 37.44 -7.33 302.82 -7.33 174.42 65 0.00 32.50 -5.80 314.04 -5.80 180.36 70 0.00 27.59 -4.02 326.70 -4.02 187.22 75 0.00 22.72 -1.91 342.18 -1.91 195.33 80 0.00 17.91 0.67 361.80 0.67 205.19 85 0.00 13.23 3.96 387.80 3.96 216.60 90 0.00 8.91 8.26 423.43 8.26 235.60 95 0.00 5.78 12.94 617.48 12.94 348.81 100 0.00 6.12 12.33 470.98 12.33 257.39 105 0.00 9.55 7.50 416.80 7.50 232.08 110 0.00 13.91 3.42 383.44 3.42 214.36 115 0.00 18.29 0.44 360.01 0.44 204.31 120 0.00 22.64 -1.87 342.47 -1.87 195.48 125 0.00 26.92 -3.75 328.64 -3.75 188.25 130 0.00 31.14 -5.33 317.33 -5.33 182.17 135 0.00 35.26 -6.68 307.26 -6.68 176.94 140 0.00 39.26 -7.85 299.33 -7.85 172.41 145 0.00 43.10 -8.86 292.62 -8.86 168.47 150 0.00 46.74 -9.74 286.93 -9.74 163.44 155 0.00 50.10 -10.00 285.28 -10.00 162.46 160 0.00 53.11 -10.00 285.28 -10.00 162.46 165 0.00 55.66 -10.00 285.28 -10.00 162.46 170 0.00 57.62 -10.00 285.28 -10.00 162.46 175 0.00 58.86 -10.00 285.28 -10.00 162.46 180 0.00 59.29 -10.00 285.28 -10.00 162.46 185 0.00 58.86 -10.00 285.28 -10.00 162.46 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 28 of 30

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values CORAL SPRING, FL Licensee Name Digital Latin America, LLC Latitude (NAD 83) 26° 16' 53.8" N Longitude (NAD 83) 80° 17' 24.4" W Ground Elevation (AMSL) 2.74 m / 9.0 ft Antenna Centerline (AGL) 6.1 m / 20.0 ft Antenna Model ASC Signal 6.5 Meter 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 -4.4 (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 57.62 -10.00 285.28 -10.00 162.46 195 0.00 55.66 -10.00 285.28 -10.00 162.46 200 0.00 53.11 -10.00 285.28 -10.00 162.46 205 0.00 50.10 -10.00 285.28 -10.00 162.46 210 0.00 46.74 -9.74 286.93 -9.74 163.44 215 0.00 43.10 -8.86 292.62 -8.86 168.47 220 0.00 39.26 -7.85 299.34 -7.85 172.41 225 0.00 35.26 -6.68 307.27 -6.68 176.94 230 0.00 31.14 -5.33 317.33 -5.33 182.17 235 0.00 27.02 -3.79 328.35 -3.79 188.10 240 0.00 23.22 -2.14 340.43 -2.14 194.43 245 0.00 19.91 -0.48 352.96 -0.48 200.80 250 0.00 17.40 0.99 364.22 0.99 204.75 255 0.00 16.05 1.86 371.07 1.86 208.13 260 0.00 16.16 1.79 370.48 1.79 207.84 265 0.00 17.71 0.80 362.74 0.80 205.65 270 0.00 20.36 -0.72 351.12 -0.72 199.88 275 0.00 23.75 -2.39 338.59 -2.39 193.47 280 0.00 27.61 -4.03 326.64 -4.03 187.19 285 0.00 31.77 -5.55 315.78 -5.55 181.32 290 0.00 36.13 -6.95 305.45 -6.95 175.92 295 0.00 40.61 -8.22 296.88 -8.22 170.98 300 0.00 45.19 -9.37 289.29 -9.37 164.85 305 0.00 49.83 -10.00 285.28 -10.00 162.46 310 0.00 54.51 -10.00 285.28 -10.00 162.46 315 0.00 59.24 -10.00 285.28 -10.00 162.46 320 0.00 63.99 -10.00 285.28 -10.00 162.46 325 0.00 68.76 -10.00 285.28 -10.00 162.46 330 0.00 73.55 -10.00 285.28 -10.00 162.46 335 0.00 78.34 -10.00 285.28 -10.00 162.46 340 0.00 83.14 -10.00 285.28 -10.00 162.46 345 0.00 87.95 -10.00 285.28 -10.00 162.46 350 0.00 92.76 -10.00 285.28 -10.00 162.46 355 0.00 97.57 -10.00 285.28 -10.00 162.46 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 29 of 30

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: May 26, 2011 Frequency Coordination and Interference Analysis Report 05/26/2011 Page 30 of 30


Document Created: 2011-05-26 16:07:25
Document Modified: 2011-05-26 16:07:25
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