Attachment Exhibit D

This document pretains to SES-MOD-20110304-00244 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2011030400244_873260

Exhibit D Frequency Coordination Reports Response to Question E18

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for LightSquared Subsidiary LLC NAPA, CA (7.3 meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 February 24, 2011

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 02/24/2011 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 modifications to the existing 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 02/24/2011 Page 3 of 11

2. SUMMARY OF RESULTS A number of great circle interference cases were identified during the interference study of the proposed modifications to the existing 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-only earth station. Company CBS Broadcasting Inc No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 02/24/2011 Page 4 of 11

3. SUPPLEMENTAL SHOWING Pursuant to Part 25.203(c) of the FCC Rules and Regulations, the satellite earth station modifications proposed in this application were 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 01/18/2011. Company ADVANCED BROADBAND Alameda County of California American Telecasting, Inc. AT&T California BorderComm Partners LP (XC) California, State of CBS Broadcasting Inc CENTRAL VALLEY CABLE TV, LLC Channel 40, Inc. CHRISTIAN COMMUNICATIONS OF CHICAGOLAND Citizens Telecommunications of CA CNN America, Inc. COMCAST CABLEVISION CORP OF CALIFORNIA COMCAST OF CALIF/COLO/WASH, LP COMCAST OF NORTHERN CALIFORNIA I, INC. COMCAST OF NORTHERN CALIFORNIA II, INC. CONTRA COSTA COUNTY COMMUNICATIONS DEPT. County of Sacramento IT Department EAST BAY MUNICIPAL UTILITY DISTRICT Edge Wireless Licenses, LLC Gannett River States Publishing Corp. GTE Mobilnet of California LTD Partnersh HAYWARD, CITY OF Hearst Stations, Inc. (KCRA) HORIZON CABLE TV, INC ION MEDIA SACRAMENTO LICENSE, INC. KDTV License Partnership, G.P. KGO TELEVISION INCORPORATED KQED INC KTVU PARTNERSHIP (KTVU - KICU, CA) KUVS License Partnership, G.P. KVIE INC LAKE COUNTY TELEVISION CLUB LELAND STANFORD JUNIOR UNIVERSITY Lincoln Broadcasting Co, A California LP M.U.T. Licensing, LLC Marin County of California MARIN EMERGENCY RADIO AUTHORITY (MERA) MATRIX CABLEVISION INC MCI Communication Services, Inc. Frequency Coordination and Interference Analysis Report 02/24/2011 Page 5 of 11

MEDIACOM CALIFORNIA LLC METRO NETWORKS COMMUNICATIONS INC MetroFi Inc. Moreen, Steven K Napa, City of NBC TELEMUNDO LICENSE CO. NBC Telemundo License Co. - KNTV New Cingular Wireless PCS LLC - N CAL NORTHERN CALIFORNIA PUBLIC BROADCASTING POLAR BROADCASTING, INC Regents of the University of California ROMAN CATHOLIC COMMUNICATIONS CORP Sacramento County Sacramento Television Stations, Inc Sacramento Valley Limited Partnership SAN FRANCISCO CITY & COUNTY CALIFORNIA San Joaquin County SAN MATEO COUNTY SAN MATEO COUNTY COMMUNITY COLLEGE DIST SBE Coordinator TTBG/KTNC License Sub, LLC WILINE NETWORKS, INC. YOUNG BROADCASTING OF SAN FRANCISCO INC Frequency Coordination and Interference Analysis Report 02/24/2011 Page 6 of 11

4. EARTH STATION COORDINATION DATA This section presents the data pertinent to frequency coordination of the proposed modifications to the existing earth station that were circulated to all carriers within its coordination contours. Frequency Coordination and Interference Analysis Report 02/24/2011 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 02/24/2011 Job Number: 110118COMSGE01 Administrative Information Status ENGINEER PROPOSAL Call Sign E080030 Licensee Code MOSVLP Licensee Name LightSquared Subsidiary LLC Site Information NAPA, CA Venue Name Latitude (NAD 83) 38° 14' 41.5" N Longitude (NAD 83) 122° 16' 47.5" W Climate Zone A Rain Zone 3 Ground Elevation (AMSL) 3.05 m / 10.0 ft Link Information Satellite Type Inclined Geo Orbit Mode TR - Transmit-Receive Modulation Digital Minimum Elevation Angle 34° Azimuth Range 101.0 degrees to 107.3 degrees West Longitude Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer ViaSat ViaSat Model 7.3 Meter 7.3 Meter Gain / Diameter 57.4 dBi / 7.3 m 58.8 dBi / 7.3 m 3-dB / 15-dB Beamwidth 0.07° / 0.10° 0.10° / 0.20° Max Available RF Power (dBW/4 kHz) (1) 23.7 (2) -1.1 (3) -1.1 (4) 9.9 (dBW/MHz) 23.7 22.9 22.9 9.9 Maximum EIRP (dBW/4 kHz) 85.0 57.7 57.7 68.7 (dBW/MHz) 85.0 81.7 81.7 68.7 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 11.0 GHz Transmit 13.0 GHz Emission / Frequency Range (MHz) N0N – 7M50G7D / 10700.0 - 10950.0 (1) N0N – 7M50G7D / 13240.5 – 13245.5 N0N – 7M50G7D / 11200.0 - 11450.0 (2) N0N – 7M50G7D / 13248.0 - 13250.0 (3) N0N – 7M50G7D / 12750.0 - 12752.0 (4) N0N – 7M50G7D / 12780.0 - 13140.0 Max Great Circle Coordination Distance 156.8 km / 97.4 mi 156.8 km / 97.4 mi Precipitation Scatter Contour Radius 351.5 km / 218.4 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 02/24/2011 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 NAPA, CA Licensee Name LightSquared Subsidiary LLC Latitude (NAD 83) 38° 14' 41.5" N Longitude (NAD 83) 122° 16' 47.5" W Ground Elevation (AMSL) 3.05 m / 10.0 ft Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Model Viasat 7.3 Meter Antenna Mode Transmit 13.0 GHz Interference Objectives: Long Term -151.0 dBW/4 kHz 20% Short Term -128.0 dBW/4 kHz 0.0025% Max Available RF Power -1.1 (dBW/4 kHz) Transmit 13.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 72.05 -10.00 156.80 5 0.00 67.93 -10.00 156.80 10 0.95 64.16 -10.00 107.80 15 0.66 60.12 -10.00 111.40 20 0.50 56.20 -10.00 129.20 25 0.59 52.51 -10.00 140.70 30 1.62 49.52 -10.00 116.00 35 2.51 46.79 -10.00 100.00 40 2.26 43.61 -10.00 100.00 45 3.09 41.57 -10.00 100.00 50 2.92 39.16 -10.00 100.00 55 3.71 38.05 -10.00 100.00 60 3.85 36.89 -10.00 100.00 65 4.79 37.10 -10.00 100.00 70 4.77 36.95 -10.00 100.00 75 4.32 36.95 -10.00 100.00 80 4.26 37.91 -10.00 100.00 85 4.19 39.39 -10.00 100.00 90 3.93 41.18 -10.00 100.00 95 3.28 43.11 -10.00 100.00 100 4.45 46.72 -9.32 100.00 105 4.45 49.72 -8.55 100.00 110 5.08 53.30 -7.80 100.00 115 5.77 57.01 -7.03 100.00 120 6.24 60.70 -6.22 100.00 125 6.24 64.26 -5.51 100.00 130 7.44 68.32 -5.25 100.00 135 7.18 71.93 -4.93 100.00 140 7.18 75.68 -5.17 100.00 145 6.96 79.45 -5.57 100.00 150 6.52 83.26 -6.27 100.00 155 6.90 87.17 -7.07 100.00 160 6.90 91.05 -7.65 100.00 165 6.90 94.93 -7.85 100.00 170 9.76 98.42 -8.27 100.00 175 9.76 102.09 -8.75 100.00 180 9.92 105.68 -9.26 100.00 185 9.80 109.28 -9.84 100.00 Frequency Coordination and Interference Analysis Report 02/24/2011 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 NAPA, CA Licensee Name LightSquared Subsidiary LLC Latitude (NAD 83) 38° 14' 41.5" N Longitude (NAD 83) 122° 16' 47.5" W Ground Elevation (AMSL) 3.05 m / 10.0 ft Antenna Centerline (AGL) 3.66 m / 12.0 ft Antenna Model Viasat 7.3 Meter Antenna Mode Transmit 13.0 GHz Interference Objectives: Long Term -151.0 dBW/4 kHz 20% Short Term -128.0 dBW/4 kHz 0.0025% Max Available RF Power -1.1 (dBW/4 kHz) Transmit 13.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 9.80 112.76 -10.00 100.00 195 7.26 117.25 -10.00 100.00 200 7.26 120.69 -10.00 105.00 205 7.26 123.99 -10.00 116.50 210 6.58 127.53 -10.00 137.70 215 6.58 130.49 -10.00 156.80 220 5.86 133.74 -10.00 156.80 225 4.77 137.08 -10.00 156.80 230 4.77 139.24 -10.00 156.80 235 4.29 141.42 -10.00 156.80 240 3.40 143.54 -10.00 144.50 245 3.40 144.28 -10.00 130.50 250 3.40 144.42 -10.00 143.10 255 2.14 145.19 -10.00 144.00 260 2.15 144.09 -10.00 139.00 265 1.54 142.97 -10.00 130.90 270 1.54 140.80 -10.00 126.50 275 1.54 138.21 -10.00 128.20 280 0.89 135.71 -10.00 131.50 285 0.89 132.46 -10.00 127.70 290 0.91 128.98 -10.00 109.30 295 1.11 125.25 -10.00 119.30 300 0.89 121.56 -10.00 111.10 305 1.27 117.54 -10.00 100.40 310 0.86 113.70 -10.00 115.90 315 1.08 109.60 -10.00 103.60 320 1.12 105.50 -10.00 104.40 325 1.21 101.36 -10.00 101.30 330 0.86 97.24 -10.00 108.90 335 0.00 93.09 -10.00 156.80 340 0.00 88.85 -10.00 156.80 345 0.00 84.62 -10.00 156.80 350 0.00 80.41 -10.00 156.80 355 0.00 76.21 -10.00 156.80 Frequency Coordination and Interference Analysis Report 02/24/2011 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. BY: _ Gary K. Edwards Senior Manager COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: February 24, 2011 Frequency Coordination and Interference Analysis Report 02/24/2011 Page 11 of 11

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for LightSquared Subsidiary LLC NAPA, CA (11.3 Meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 February 24, 2011

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 02/24/2011 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 modifications to the existing 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 02/24/2011 Page 3 of 11

2. SUMMARY OF RESULTS A number of great circle interference cases were identified during the interference study of the proposed modifications to the existing 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-only earth station. Company CBS Broadcasting Inc No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 02/24/2011 Page 4 of 11

3. SUPPLEMENTAL SHOWING Pursuant to Part 25.203(c) of the FCC Rules and Regulations, the satellite earth station modifications proposed in this application were 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 01/18/2011. Company ADVANCED BROADBAND Alameda County of California American Telecasting, Inc. AT&T California BorderComm Partners LP (XC) California, State of CBS Broadcasting Inc CENTRAL VALLEY CABLE TV, LLC Channel 40, Inc. CHRISTIAN COMMUNICATIONS OF CHICAGOLAND Citizens Telecommunications of CA CNN America, Inc. COMCAST CABLEVISION CORP OF CALIFORNIA COMCAST OF CALIF/COLO/WASH, LP COMCAST OF NORTHERN CALIFORNIA I, INC. COMCAST OF NORTHERN CALIFORNIA II, INC. CONTRA COSTA COUNTY COMMUNICATIONS DEPT. County of Sacramento IT Department EAST BAY MUNICIPAL UTILITY DISTRICT Edge Wireless Licenses, LLC Gannett River States Publishing Corp. GTE Mobilnet of California LTD Partnersh HAYWARD, CITY OF Hearst Stations, Inc. (KCRA) HORIZON CABLE TV, INC ION MEDIA SACRAMENTO LICENSE, INC. KDTV License Partnership, G.P. KGO TELEVISION INCORPORATED KQED INC KTVU PARTNERSHIP (KTVU - KICU, CA) KUVS License Partnership, G.P. KVIE INC LAKE COUNTY TELEVISION CLUB LELAND STANFORD JUNIOR UNIVERSITY Lincoln Broadcasting Co, A California LP M.U.T. Licensing, LLC Marin County of California MARIN EMERGENCY RADIO AUTHORITY (MERA) MATRIX CABLEVISION INC MCI Communication Services, Inc. Frequency Coordination and Interference Analysis Report 02/24/2011 Page 5 of 11

MEDIACOM CALIFORNIA LLC METRO NETWORKS COMMUNICATIONS INC MetroFi Inc. Moreen, Steven K Napa, City of NBC TELEMUNDO LICENSE CO. NBC Telemundo License Co. - KNTV New Cingular Wireless PCS LLC - N CAL NORTHERN CALIFORNIA PUBLIC BROADCASTING POLAR BROADCASTING, INC Regents of the University of California ROMAN CATHOLIC COMMUNICATIONS CORP Sacramento County Sacramento Television Stations, Inc Sacramento Valley Limited Partnership SAN FRANCISCO CITY & COUNTY CALIFORNIA San Joaquin County SAN MATEO COUNTY SAN MATEO COUNTY COMMUNITY COLLEGE DIST SBE Coordinator TTBG/KTNC License Sub, LLC WILINE NETWORKS, INC. YOUNG BROADCASTING OF SAN FRANCISCO INC Frequency Coordination and Interference Analysis Report 02/24/2011 Page 6 of 11

4. EARTH STATION COORDINATION DATA This section presents the data pertinent to frequency coordination of the proposed modifications to the existing earth station that were circulated to all carriers within its coordination contours. Frequency Coordination and Interference Analysis Report 02/24/2011 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 02/24/2011 Job Number: 110118COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign E080030 Licensee Code MOSVLP Licensee Name LightSquared Subsidiary LLC Site Information NAPA, CA Venue Name Latitude (NAD 83) 38° 14' 41.5" N Longitude (NAD 83) 122° 16' 47.5" W Climate Zone A Rain Zone 3 Ground Elevation (AMSL) 3.05 m / 10.0 ft Link Information Satellite Type Inclined Geo Orbit Mode TR - Transmit-Receive Modulation Digital Minimum Elevation Angle 34° Azimuth Range 101.0 degrees to 107.3 degrees West Longitude Antenna Centerline (AGL) 6.4 m / 21.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer ViaSat ViaSat Model 11.3 Meter 11.3 Meter Gain / Diameter 61.2 dBi / 11.3 m 61.4 dBi / 11.3 m 3-dB / 15-dB Beamwidth 0.07° / 0.10° 0.10° / 0.20° Max Available RF Power (dBW/4 kHz) (1) 23.6 (2) -1.1 (3) -1.1 (4) 9.8 (dBW/MHz) 23.6 22.9 22.9 9.8 Maximum EIRP (dBW/4 kHz) 85.0 60.3 60.3 71.2 (dBW/MHz) 85.0 84.3 84.3 71.2 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 11.0 GHz Transmit 13.0 GHz Emission / Frequency Range (MHz) N0N – 7M50G7D / 10700.0 - 10950.0 (1) N0N – 7M50G7D / 13240.5 – 13245.5 N0N – 7M50G7D / 11200.0 - 11450.0 (2) N0N – 7M50G7D / 13248.0 - 13250.0 (3) N0N – 7M50G7D / 12750.0 - 12752.0 (4) N0N – 7M50G7D / 12780.0 - 13140.0 Max Great Circle Coordination Distance 156.8 km / 97.4 mi 156.8 km / 97.4 mi Precipitation Scatter Contour Radius 351.5 km / 218.4 mi 137.2 km / 85.2 mi Frequency Coordination and Interference Analysis Report 02/24/2011 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 NAPA, CA Licensee Name LightSquared Subsidiary LLC Latitude (NAD 83) 38° 14' 41.5" N Longitude (NAD 83) 122° 16' 47.5" W Ground Elevation (AMSL) 3.05 m / 10.0 ft Antenna Centerline (AGL) 6.4 m / 21.0 ft Antenna Model Viasat 11.3 meter Antenna Mode Transmit 13.0 GHz Interference Objectives: Long Term -151.0 dBW/4 kHz 20% Short Term -128.0 dBW/4 kHz 0.0025% Max Available RF Power -1.1 (dBW/4 kHz) Transmit 13.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 72.05 -10.00 156.80 5 0.00 67.93 -10.00 156.80 10 0.92 64.15 -10.00 107.80 15 0.64 60.11 -10.00 111.40 20 0.48 56.19 -10.00 129.20 25 0.55 52.49 -10.00 140.70 30 1.58 49.49 -10.00 116.00 35 2.47 46.76 -10.00 100.00 40 2.21 43.58 -10.00 100.00 45 3.05 41.54 -10.00 100.00 50 2.88 39.12 -10.00 100.00 55 3.67 38.01 -10.00 100.00 60 3.82 36.86 -10.00 100.00 65 4.76 37.07 -10.00 100.00 70 4.74 36.92 -10.00 100.00 75 4.29 36.92 -10.00 100.00 80 4.23 37.88 -10.00 100.00 85 4.16 39.36 -10.00 100.00 90 3.91 41.16 -10.00 100.00 95 3.13 42.99 -10.00 100.00 100 3.51 46.07 -9.32 100.00 105 4.03 49.46 -8.55 100.00 110 4.71 53.09 -7.80 100.00 115 5.40 56.83 -7.03 100.00 120 5.69 60.45 -6.22 100.00 125 5.69 64.05 -5.51 100.00 130 6.90 68.14 -5.25 100.00 135 6.63 71.78 -4.93 100.00 140 6.63 75.57 -5.17 100.00 145 6.41 79.37 -5.57 100.00 150 5.97 83.21 -6.27 100.00 155 5.81 87.13 -7.07 100.00 160 5.80 91.07 -7.65 100.00 165 5.80 95.01 -7.85 100.00 170 8.68 98.57 -8.27 100.00 175 8.68 102.30 -8.75 100.00 180 8.84 105.95 -9.26 100.00 185 8.72 109.61 -9.84 100.00 Frequency Coordination and Interference Analysis Report 02/24/2011 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 NAPA, CA Licensee Name LightSquared Subsidiary LLC Latitude (NAD 83) 38° 14' 41.5" N Longitude (NAD 83) 122° 16' 47.5" W Ground Elevation (AMSL) 3.05 m / 10.0 ft Antenna Centerline (AGL) 6.4 m / 21.0 ft Antenna Model Viasat 11.3 meter Antenna Mode Transmit 13.0 GHz Interference Objectives: Long Term -151.0 dBW/4 kHz 20% Short Term -128.0 dBW/4 kHz 0.0025% Max Available RF Power -1.1 (dBW/4 kHz) Transmit 13.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 8.72 113.17 -10.00 100.00 195 6.16 117.71 -10.00 105.00 200 6.16 121.22 -10.00 116.50 205 6.17 124.59 -10.00 137.70 210 5.48 128.20 -10.00 156.80 215 5.48 131.24 -10.00 156.80 220 4.76 134.56 -10.00 156.80 225 3.67 137.97 -10.00 156.80 230 3.67 140.20 -10.00 156.80 235 3.18 142.44 -10.00 144.50 240 2.29 144.61 -10.00 130.50 245 2.29 145.38 -10.00 143.10 250 2.29 145.53 -10.00 144.00 255 1.03 146.28 -10.00 139.00 260 1.03 145.13 -10.00 130.90 265 0.54 143.85 -10.00 126.50 270 0.59 141.57 -10.00 128.20 275 0.54 138.95 -10.00 131.50 280 0.50 135.97 -10.00 127.70 285 0.48 132.71 -10.00 109.30 290 0.89 128.99 -10.00 119.30 295 1.09 125.26 -10.00 111.10 300 0.87 121.57 -10.00 100.40 305 1.25 117.55 -10.00 115.90 310 0.84 113.71 -10.00 103.60 315 1.03 109.61 -10.00 104.40 320 1.07 105.51 -10.00 101.30 325 1.18 101.37 -10.00 108.90 330 0.84 97.24 -10.00 156.80 335 0.00 93.09 -10.00 156.80 340 0.00 88.85 -10.00 156.80 345 0.00 84.62 -10.00 156.80 350 0.00 80.41 -10.00 156.80 355 0.00 76.21 -10.00 156.80 Frequency Coordination and Interference Analysis Report 02/24/2011 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. BY: _ Gary K. Edwards Senior Manager COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: February 24, 2011 Frequency Coordination and Interference Analysis Report 02/24/2011 Page 11 of 11


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