Attachment Freq Coordination

This document pretains to SES-MOD-20100805-01001 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2010080501001_833276

19700 Janelia Farm Boulevard Ashburn, VA 20147 703-726-5500 Fax 703-726-5596 July 30, 2010 Office of the Secretary Federal Communications Commission Washington, DC 20554 Re: TerreStar License Inc. N Las Vegas, NV Earth Station FCC Call Sign: E070098 Dear Sir: This letter is to confirm that the 6.3 and 9.3 Meter Ku-Band Earth Stations located in N Las Vegas, NV (36-14-9.9 N, 115-7-1.3 W (NAD83)) under the ownership of TerreStar License Inc., has been under our continuous monitor and frequency protection service. We have been monitoring all new frequency coordinations on their behalf and maintaining their participation in the frequency coordination process as specified in part 25 and part 101 of the FCC Rules and Regulations. The protected technical parameters match the prior coordination notices dated April 2, 2007 that were sent by Comsearch to co-channel incumbent licensees. We have been protecting this facility on behalf of TerreStar License Inc. The frequency coordination of the station has been maintained since 2007 and no further coordination activity will be necessary. If you have any questions, or require additional information, please don’t hesitate to call me on (703) 726-5656 or by email at dmeyer@comsearch.com Sincerely, COMSEARCH David E. Meyer Senior Manager Frequency Protection Services

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Terrestar Networks NORTH LAS VEGAS, NV (6.3 Meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 15, 2007

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 05/15/2007 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 05/15/2007 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, whether by path loss or frequency separation. . Frequency Coordination and Interference Analysis Report 05/15/2007 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 04/02/2007. Company CRANSTON II LLC Clark County School Dist., KLVX TV ENTRAVISION HOLDINGS, LLC JOURNAL BROADCASTING CORPORATION KUPN Licensee, LLC KVVU BROADCASTING CORPORATION LAS VEGAS TV PARTNERS LLC MOHAVE COUNTY BOARD OF SUPERVISORS NEVADA CHANNEL 3, INC NPG Cable, Inc dba Cablvsn Bullhead City Orange Broadband Operating Company, LLC Rio Virgin Telephone Company Inc SOUTHWEST MEDIA, LLC TELEMUNDO LAS VEGAS LICENSE LLC TRI-STATE BROADCASTING, LLC UNA VEZ MAS ARIZONA, LLC UNIVERSITY OF UTAH UTAH STATE BOARD OF REGENTS VALLEY BROADCASTING COMPANY Frequency Coordination and Interference Analysis Report 05/15/2007 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 05/15/2007 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 05/15/2007 Job Number: 070402COMSGE01 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code TERNET Licensee Name Terrestar Networks Site Information N LAS VEGAS, NV Venue Name Latitude (NAD 83) 36° 14' 9.9" N Longitude (NAD 83) 115° 7' 1.3" W Climate Zone A Rain Zone 5 Ground Elevation (AMSL) 585.22 m / 1920.0 ft Link Information Satellite Type Inclined Geo Orbit Mode TR - Transmit-Receive Modulation Digital Minimum Elevation Angle 41.7° Azimuth Range 111.1 degrees West Longitude (Azimuth 173.2 degrees) Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Vertex/RSI Vertex/RSI Model 6.3 – KXK1 6.3 – KXK1 Gain / Diameter 55.9 dBi / 6.3 m 57.0 dBi / 6.3 m 3-dB / 15-dB Beamwidth 0.58° / 1.22° 0.44° / 0.92° Max Available RF Power (dBW/4 kHz) (1) 4.6 (2) -9.4 (dBW/MHz) 28.6 14.6 Maximum EIRP (dBW/4 kHz) 61.6 47.6 (dBW/MHz) 85.6 71.6 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) 31K3G7D - 5M00G7D / 10700.0 - 10950.0 (1) N0N - 12992.0 31K3G7D - 5M00G7D / 11200.0 - 11450.0 (2) 31K3G7D - 5M00G7D / 12750.0 - 13000.0 Max Great Circle Coordination Distance 207.6 km / 129.0 mi 183.2 km / 113.8 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 05/15/2007 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 N LAS VEGAS, NV Licensee Name Terrestar Networks Latitude (NAD 83) 36° 14' 9.9" N Longitude (NAD 83) 115° 7' 1.3" W Ground Elevation (AMSL) 585.22 m / 1920.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Vertex/RSI 6.3 Meter Antenna Mode Receive 11.0 GHz Transmit 13.0 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 4.6 (dBW/4 kHz) Receive 11.0 GHz Transmit 13.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 76.33 -10.00 200.30 -10.00 177.80 5 0.00 71.95 -10.00 200.30 -10.00 177.80 10 0.00 67.61 -10.00 200.30 -10.00 177.80 15 0.00 63.31 -10.00 200.30 -10.00 177.80 20 0.00 59.08 -10.00 200.30 -10.00 177.80 25 0.00 54.92 -10.00 200.30 -10.00 177.80 30 0.00 50.86 -10.00 200.30 -10.00 177.80 35 0.00 46.93 -10.00 200.30 -10.00 177.80 40 0.00 43.16 -10.00 200.30 -10.00 177.80 45 0.00 39.61 -10.00 200.30 -10.00 177.80 50 0.00 36.35 -10.00 200.30 -10.00 177.80 55 0.00 33.45 -10.00 200.30 -10.00 177.80 60 0.00 31.02 -10.00 200.30 -10.00 177.80 65 0.00 29.18 -10.00 200.30 -10.00 177.80 70 0.00 28.05 -10.00 200.30 -10.00 177.80 75 0.00 27.72 -10.00 200.30 -10.00 177.80 80 0.00 28.21 -10.00 200.30 -10.00 177.80 85 0.00 29.49 -10.00 200.30 -10.00 177.80 90 0.00 31.45 -10.00 200.30 -10.00 177.80 95 0.00 33.98 -10.00 200.30 -10.00 177.80 100 0.00 36.95 -10.00 200.30 -10.00 177.80 105 0.00 40.28 -10.00 200.30 -10.00 177.80 110 0.00 43.88 -10.00 200.30 -10.00 177.80 115 0.00 47.68 -10.00 200.30 -10.00 177.80 120 0.00 51.64 -9.98 200.30 -9.98 177.80 125 0.00 55.72 -9.52 205.10 -9.52 177.80 130 0.00 59.89 -9.13 206.31 -9.13 179.60 135 0.00 64.14 -8.82 207.59 -8.82 181.10 140 0.00 68.45 -8.63 206.32 -8.63 183.20 145 0.00 72.80 -8.55 206.20 -8.55 183.00 150 0.00 77.18 -8.60 206.29 -8.60 183.20 155 0.00 81.59 -8.78 205.10 -8.78 183.10 160 0.00 86.00 -9.06 204.20 -9.06 182.40 165 0.00 90.43 -9.43 201.86 -9.43 181.30 170 0.00 94.85 -9.76 202.45 -9.76 179.90 175 0.00 99.27 -9.95 200.30 -9.95 178.70 180 0.00 103.67 -10.00 200.30 -10.00 177.80 185 0.00 108.05 -10.00 200.30 -10.00 177.80 Frequency Coordination and Interference Analysis Report 05/15/2007 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 N LAS VEGAS, NV Licensee Name Terrestar Networks Latitude (NAD 83) 36° 14' 9.9" N Longitude (NAD 83) 115° 7' 1.3" W Ground Elevation (AMSL) 585.22 m / 1920.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Vertex/RSI 6.3 Meter Antenna Mode Receive 11.0 GHz Transmit 13.0 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 4.6 (dBW/4 kHz) Receive 11.0 GHz Transmit 13.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 112.39 -10.00 200.30 -10.00 177.80 195 0.00 116.69 -10.00 200.30 -10.00 177.80 200 0.00 120.92 -10.00 200.30 -10.00 177.80 205 0.00 125.08 -10.00 200.30 -10.00 177.80 210 0.00 129.14 -10.00 200.30 -10.00 177.80 215 0.00 133.07 -10.00 200.30 -10.00 177.80 220 0.00 136.84 -10.00 200.30 -10.00 177.80 225 0.00 140.39 -10.00 200.30 -10.00 177.80 230 0.00 143.65 -10.00 200.30 -10.00 177.80 235 0.00 146.55 -10.00 200.30 -10.00 177.80 240 0.00 148.98 -10.00 200.30 -10.00 177.80 245 0.00 150.82 -10.00 200.30 -10.00 177.80 250 0.00 151.95 -10.00 200.30 -10.00 177.80 255 0.00 152.28 -10.00 200.30 -10.00 177.80 260 0.00 151.79 -10.00 200.30 -10.00 177.80 265 0.00 150.51 -10.00 200.30 -10.00 177.80 270 0.00 148.55 -10.00 200.30 -10.00 177.80 275 0.00 146.02 -10.00 200.30 -10.00 177.80 280 0.00 143.05 -10.00 200.30 -10.00 177.80 285 0.00 139.72 -10.00 200.30 -10.00 177.80 290 0.00 136.12 -10.00 200.30 -10.00 177.80 295 0.00 132.32 -10.00 200.30 -10.00 177.80 300 0.00 128.36 -10.00 200.30 -10.00 177.80 305 0.00 124.28 -10.00 200.30 -10.00 177.80 310 0.00 120.11 -10.00 200.30 -10.00 177.80 315 0.00 115.86 -10.00 200.30 -10.00 177.80 320 0.00 111.55 -10.00 200.30 -10.00 177.80 325 0.00 107.20 -10.00 200.30 -10.00 177.80 330 0.00 102.82 -10.00 200.30 -10.00 177.80 335 0.00 98.41 -10.00 200.30 -10.00 177.80 340 0.00 94.00 -10.00 200.30 -10.00 177.80 345 0.00 89.57 -10.00 200.30 -10.00 177.80 350 0.00 85.15 -10.00 200.30 -10.00 177.80 355 0.00 80.73 -10.00 200.30 -10.00 177.80 Frequency Coordination and Interference Analysis Report 05/15/2007 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: May 15, 2007 Frequency Coordination and Interference Analysis Report 05/15/2007 Page 10 of 10

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Terrestar Networks NORTH LAS VEGAS, NV (9.3 Meter) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 May 15, 2007

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 05/15/2007 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 05/15/2007 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, whether by path loss or frequency separation. Frequency Coordination and Interference Analysis Report 05/15/2007 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 04/02/2007. Company CRANSTON II LLC Clark County School Dist., KLVX TV ENTRAVISION HOLDINGS, LLC JOURNAL BROADCASTING CORPORATION KUPN Licensee, LLC KVVU BROADCASTING CORPORATION LAS VEGAS TV PARTNERS LLC MOHAVE COUNTY BOARD OF SUPERVISORS NEVADA CHANNEL 3, INC NPG Cable, Inc dba Cablvsn Bullhead City Orange Broadband Operating Company, LLC Rio Virgin Telephone Company Inc SOUTHWEST MEDIA, LLC TELEMUNDO LAS VEGAS LICENSE LLC TRI-STATE BROADCASTING, LLC UNA VEZ MAS ARIZONA, LLC UNIVERSITY OF UTAH UTAH STATE BOARD OF REGENTS VALLEY BROADCASTING COMPANY Frequency Coordination and Interference Analysis Report 05/15/2007 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 05/15/2007 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 05/15/2007 Job Number: 070402COMSGE05 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code TERNET Licensee Name Terrestar Networks Site Information N LAS VEGAS, NV Venue Name Latitude (NAD 83) 36° 14' 9.9" N Longitude (NAD 83) 115° 7' 1.3" W Climate Zone A Rain Zone 5 Ground Elevation (AMSL) 585.22 m / 1920.0 ft Link Information Satellite Type Inclined Geo Orbit Mode TR - Transmit-Receive Modulation Digital Minimum Elevation Angle 41.7° Azimuth Range 111.1 degrees West Longitude (Azimuth 173.2 degrees) Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Vertex/RSI Vertex/RSI Model 9.3 - KPK 9.3 - KPK Gain / Diameter 59.2 dBi / 9.3 m 60.2 dBi / 9.3 m 3-dB / 15-dB Beamwidth 0.34° / 0.72° 0.30° / 0.64° Max Available RF Power (dBW/4 kHz) (1) 1.4 (2) -9.4 (dBW/MHz) 25.4 14.6 Maximum EIRP (dBW/4 kHz) 61.6 50.8 (dBW/MHz) 85.6 74.8 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) 31K3G7D - 5M00G7D / 10700.0 - 10950.0 (1) N0N - 12992.0 31K3G7D - 5M00G7D / 11200.0 - 11450.0 (2) 31K3G7D - 5M00G7D / 12750.0 - 13000.0 Max Great Circle Coordination Distance 207.6 km / 129.0 mi 183.2 km / 113.8 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 05/15/2007 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 N LAS VEGAS, NV Licensee Name Terrestar Networks Latitude (NAD 83) 36° 14' 9.9" N Longitude (NAD 83) 115° 7' 1.3" W Ground Elevation (AMSL) 585.22 m / 1920.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Vertex/RSI 9.3 Meter Antenna Mode Receive 11.0 GHz Transmit 13.0 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 1.4 (dBW/4 kHz) Receive 11.0 GHz Transmit 13.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 76.33 -10.00 200.30 -10.00 177.80 5 0.00 71.95 -10.00 200.30 -10.00 177.80 10 0.00 67.61 -10.00 200.30 -10.00 177.80 15 0.00 63.31 -10.00 200.30 -10.00 177.80 20 0.00 59.08 -10.00 200.30 -10.00 177.80 25 0.00 54.92 -10.00 200.30 -10.00 177.80 30 0.00 50.86 -10.00 200.30 -10.00 177.80 35 0.00 46.93 -10.00 200.30 -10.00 177.80 40 0.00 43.16 -10.00 200.30 -10.00 177.80 45 0.00 39.61 -10.00 200.30 -10.00 177.80 50 0.00 36.35 -10.00 200.30 -10.00 177.80 55 0.00 33.45 -10.00 200.30 -10.00 177.80 60 0.00 31.02 -10.00 200.30 -10.00 177.80 65 0.00 29.18 -10.00 200.30 -10.00 177.80 70 0.00 28.05 -10.00 200.30 -10.00 177.80 75 0.00 27.72 -10.00 200.30 -10.00 177.80 80 0.00 28.21 -10.00 200.30 -10.00 177.80 85 0.00 29.49 -10.00 200.30 -10.00 177.80 90 0.00 31.45 -10.00 200.30 -10.00 177.80 95 0.00 33.98 -10.00 200.30 -10.00 177.80 100 0.00 36.95 -10.00 200.30 -10.00 177.80 105 0.00 40.28 -10.00 200.30 -10.00 177.80 110 0.00 43.88 -10.00 200.30 -10.00 177.80 115 0.00 47.68 -10.00 200.30 -10.00 177.80 120 0.00 51.64 -9.98 200.30 -9.98 177.80 125 0.00 55.72 -9.52 205.10 -9.52 179.60 130 0.00 59.89 -9.13 206.31 -9.13 181.10 135 0.00 64.14 -8.82 207.59 -8.82 183.20 140 0.00 68.45 -8.63 206.32 -8.63 183.00 145 0.00 72.80 -8.55 206.20 -8.55 183.20 150 0.00 77.18 -8.60 206.29 -8.60 183.10 155 0.00 81.59 -8.78 205.10 -8.78 182.40 160 0.00 86.00 -9.06 204.20 -9.06 181.30 165 0.00 90.43 -9.43 201.86 -9.43 179.90 170 0.00 94.85 -9.76 202.45 -9.76 178.70 175 0.00 99.27 -9.95 200.30 -9.95 177.80 180 0.00 103.67 -10.00 200.30 -10.00 177.80 185 0.00 108.05 -10.00 200.30 -10.00 177.80 Frequency Coordination and Interference Analysis Report 05/15/2007 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 N LAS VEGAS, NV Licensee Name Terrestar Networks Latitude (NAD 83) 36° 14' 9.9" N Longitude (NAD 83) 115° 7' 1.3" W Ground Elevation (AMSL) 585.22 m / 1920.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Vertex/RSI 9.3 Meter Antenna Mode Receive 11.0 GHz Transmit 13.0 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 1.4 (dBW/4 kHz) Receive 11.0 GHz Transmit 14.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 112.39 -10.00 200.30 -10.00 177.80 195 0.00 116.69 -10.00 200.30 -10.00 177.80 200 0.00 120.92 -10.00 200.30 -10.00 177.80 205 0.00 125.08 -10.00 200.30 -10.00 177.80 210 0.00 129.14 -10.00 200.30 -10.00 177.80 215 0.00 133.07 -10.00 200.30 -10.00 177.80 220 0.00 136.84 -10.00 200.30 -10.00 177.80 225 0.00 140.39 -10.00 200.30 -10.00 177.80 230 0.00 143.65 -10.00 200.30 -10.00 177.80 235 0.00 146.55 -10.00 200.30 -10.00 177.80 240 0.00 148.98 -10.00 200.30 -10.00 177.80 245 0.00 150.82 -10.00 200.30 -10.00 177.80 250 0.00 151.95 -10.00 200.30 -10.00 177.80 255 0.00 152.28 -10.00 200.30 -10.00 177.80 260 0.00 151.79 -10.00 200.30 -10.00 177.80 265 0.00 150.51 -10.00 200.30 -10.00 177.80 270 0.00 148.55 -10.00 200.30 -10.00 177.80 275 0.00 146.02 -10.00 200.30 -10.00 177.80 280 0.00 143.05 -10.00 200.30 -10.00 177.80 285 0.00 139.72 -10.00 200.30 -10.00 177.80 290 0.00 136.12 -10.00 200.30 -10.00 177.80 295 0.00 132.32 -10.00 200.30 -10.00 177.80 300 0.00 128.36 -10.00 200.30 -10.00 177.80 305 0.00 124.28 -10.00 200.30 -10.00 177.80 310 0.00 120.11 -10.00 200.30 -10.00 177.80 315 0.00 115.86 -10.00 200.30 -10.00 177.80 320 0.00 111.55 -10.00 200.30 -10.00 177.80 325 0.00 107.20 -10.00 200.30 -10.00 177.80 330 0.00 102.82 -10.00 200.30 -10.00 177.80 335 0.00 98.41 -10.00 200.30 -10.00 177.80 340 0.00 94.00 -10.00 200.30 -10.00 177.80 345 0.00 89.57 -10.00 200.30 -10.00 177.80 350 0.00 85.15 -10.00 200.30 -10.00 177.80 355 0.00 80.73 -10.00 200.30 -10.00 177.80 Frequency Coordination and Interference Analysis Report 05/15/2007 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: May 15, 2007 Frequency Coordination and Interference Analysis Report 05/15/2007 Page 10 of 10


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Document Modified: 2010-08-03 13:12:04
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