Attachment E990027 Frq Coord

This document pretains to SES-MOD-20120615-00517 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2012061500517_955079

Exhibit A FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Vizada, Inc. Santa Paula, California Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 June 13, 2012

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................3 2. SUMMARY OF RESULTS.............................................................................................................................4 3. SUPPLEMENTAL SHOWING .......................................................................................................................5 4. EARTH STATION COORDINATION DATA ..................................................................................................6 5. CERTIFICATION .........................................................................................................................................11 Frequency Coordination and Interference Analysis Report 06/13/2012 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 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 06/13/2012 Page 3 of 11

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 Los Angeles City Info. Technology Agency Los Angeles County Dept. of Public Works Los Angeles County FCC Licensing Section Los Angeles SMSA Ltd. Partnership Southern California Regional Rail Authority No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 06/13/2012 Page 4 of 11

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 May 16, 2012. Company AT&T California AirSites2000, LLC American Tower, LLC California, State of Chevron USA Inc. Exxon Communications Company Fresno MSA Limited Partnership GTE Mobilnet of California LTD Partnersh GTE Mobilnet of Santa Barbara LTD Ptnsh Goff, Wayne C. KERN ED TELECOM CONSORTIUM KTLA INC Kern, County of LOS ANGELES CITY WATER & POWER LOS ANGELES UNIFIED SCHOOL DISTRICT Los Angeles City Info Technology Agency Los Angeles County Dept of Public Works Los Angeles County FCC Licensing Section Los Angeles SMSA Ltd. Partnership MONTEBELLO CITY CALIFORNIA Metropolitan Water Dist of So California New Cingular Wireless PCS - Los Angeles New Cingular Wireless PCS LLC - N CAL Nextel of California Inc. Nextweb Inc OCCIDENTAL OF ELK HILLS INC Plains Exploration & Production Company Regents of the University of California Santa Barbara Cellular Systems, Ltd. Skyriver Communications Southern California Edison Company Southern California Gas Company Southern California Regional Rail Auth. TV MICROWAVES CO Ventura, County of Verizon California Inc. Vintage Production California LLC Western Pacific Mobile Microwave Western Technical Services Frequency Coordination and Interference Analysis Report 06/13/2012 Page 5 of 11

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 06/13/2012 Page 6 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 06/13/2012 Job Number: 120516COMSJC05 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code VIZSAT Licensee Name Vizada, Inc. Site Information SANTA PAULA, CALIFORNIA Venue Name Latitude (NAD 83) 34° 24' 8.1" N Longitude (NAD 83) 119° 4' 22.0" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 236.83 m / 777.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 108.7° to 218.1° Corresponding Elevation Angles 16.8° / 42.6° Antenna Centerline (AGL) 3.05 m / 10.0 ft Antenna Information Receive Transmit Manufacturer GD Satcom Technologies GD Satcom Technologies Model 4.8 Meter 4.8 Meter Gain / Diameter 44.2 dBi / 4.8 m 48.1 dBi / 4.8 m 3-dB / 15-dB Beamwidth 1.04° / 2.00° 0.67° / 1.27° Max Available RF Power (dBW/4 kHz) SEE ATTACHMENT 1 (dBW/MHz) SEE ATTACHMENT 1 Maximum EIRP (dBW/4 kHz) SEE ATTACHMENT 1 (dBW/MHz) SEE ATTACHMENT 1 (dBW) SEE ATTACHMENT 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) SEE ATTACHMENT 1 SEE ATTACHMENT 1 SEE ATTACHMENT 1 SEE ATTACHMENT 1 Max Great Circle Coordination Distance 292.8 km / 181.9 mi 123.5 km / 76.7 mi Precipitation Scatter Contour Radius 373.8 km / 232.2 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 06/13/2012 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com ATTACHMENT 1 Page 1 of 1 GD Satcom Technologies: Model: 4.8 Meter 4 GHz Gain: 44.2 dBi 6 GHz Gain: 48.1 dBi Satellite Arc: 60.0 to 143.0 West Longitude Receive Band: 3700.0 to 4200.0 MHz Emissions 36K6G1W 73K1G1W 146KG1W 2M05G1W 36K6G7W 2M05G7W ------------------------------------------------------------------------- Satellite Arc: 60.0 to 143.0 West Longitude Transmit Band: 5925.0 to 6425.0 MHz RF Power Density EIRP/Carrier EIRP Density Emission (dBW/4 kHz) (dBW) (dBW/ 4 kHz) 36K6G1W -18.7 39.0 29.4 73K1G1W -18.7 42.0 29.4 146KG1W -18.7 45.0 29.4 10M2G1W -27.1 55.1 21.0 36K6G7W -18.7 39.0 29.4 10M2G7W -27.1 55.1 21.0 Frequency Coordination and Interference Analysis Report 06/13/2012 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 SANTA PAULA, CA Licensee Name Vizada, Inc. Latitude (NAD 83) 34° 24' 8.1" N Longitude (NAD 83) 119° 4' 22.0" W Ground Elevation (AMSL) 236.83 m / 777.0 ft Antenna Centerline (AGL) 3.05 m / 10.0 ft Antenna Model GD Satcom Technologies 4.8 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 -18.7 (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 12.60 108.65 -10.00 100.00 -10.00 100.00 5 12.60 103.67 -10.00 100.00 -10.00 100.00 10 12.98 98.68 -10.00 100.00 -10.00 100.00 15 14.90 93.70 -10.00 100.00 -10.00 100.00 20 15.82 88.70 -10.00 100.00 -10.00 100.00 25 15.36 83.71 -10.00 100.00 -10.00 100.00 30 15.18 78.71 -10.00 100.00 -10.00 100.00 35 14.98 73.71 -10.00 100.00 -10.00 100.00 40 14.13 68.73 -10.00 100.00 -10.00 100.00 45 13.71 63.74 -10.00 100.00 -10.00 100.00 50 12.22 58.81 -10.00 100.00 -10.00 100.00 55 11.46 53.88 -10.00 100.00 -10.00 100.00 60 11.21 48.94 -10.00 100.00 -10.00 100.00 65 9.13 44.23 -9.14 100.00 -9.14 100.00 70 8.18 39.50 -7.91 110.55 -7.91 100.00 75 8.10 34.67 -6.50 117.02 -6.50 100.00 80 8.63 29.74 -4.83 119.22 -4.83 100.00 85 8.48 25.03 -2.96 128.47 -2.96 100.00 90 8.37 20.44 -0.76 137.89 -0.76 100.00 95 7.35 16.58 1.51 161.95 1.51 100.00 100 7.10 12.98 4.17 183.33 4.17 100.00 105 6.70 10.72 6.24 200.93 6.24 100.00 110 5.75 11.09 5.88 207.85 5.88 100.00 115 5.93 12.52 4.56 200.83 4.56 100.00 120 6.74 15.06 2.55 178.48 2.55 100.00 125 7.21 18.51 0.32 156.83 0.32 100.00 130 5.44 23.31 -2.19 165.98 -2.19 100.00 135 3.65 28.04 -4.19 186.89 -4.19 100.00 140 2.02 32.55 -5.81 211.30 -5.81 100.00 145 0.99 36.50 -7.06 236.86 -7.06 100.00 150 0.27 40.03 -8.06 288.58 -8.06 119.54 155 0.00 42.98 -8.83 292.82 -8.83 123.47 160 0.00 45.37 -9.42 289.00 -9.42 121.94 165 0.00 47.33 -9.88 286.05 -9.88 120.74 170 0.00 48.80 -10.00 285.28 -10.00 120.42 175 0.00 49.72 -10.00 285.28 -10.00 120.42 180 0.00 50.02 -10.00 285.28 -10.00 120.42 185 0.49 49.23 -10.00 250.56 -10.00 100.00 Frequency Coordination and Interference Analysis Report 06/13/2012 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 SANTA PAULA, CA Licensee Name Vizada, Inc. Latitude (NAD 83) 34° 24' 8.1" N Longitude (NAD 83) 119° 4' 22.0" W Ground Elevation (AMSL) 236.83 m / 777.0 ft Antenna Centerline (AGL) 3.05 m / 10.0 ft Antenna Model GD Satcom Technologies 4.8 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 -18.7 (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 1.15 47.72 -9.97 215.88 -9.97 100.00 195 2.69 44.93 -9.31 182.12 -9.31 100.00 200 3.13 42.77 -8.78 174.60 -8.78 100.00 205 3.94 40.46 -8.17 157.74 -8.17 100.00 210 3.12 40.13 -8.09 178.37 -8.09 100.00 215 2.71 39.95 -8.04 187.85 -8.04 100.00 220 3.02 39.58 -7.94 181.58 -7.94 100.00 225 4.50 38.58 -7.66 150.98 -7.66 100.00 230 2.88 41.13 -8.36 182.62 -8.36 100.00 235 5.35 40.34 -8.14 137.62 -8.14 100.00 240 5.33 42.35 -8.67 135.62 -8.67 100.00 245 5.31 44.75 -9.27 134.70 -9.27 100.00 250 5.55 47.29 -9.87 130.00 -9.87 100.00 255 5.27 50.46 -10.00 132.23 -10.00 100.00 260 5.82 53.36 -10.00 126.94 -10.00 100.00 265 5.55 56.91 -10.00 129.54 -10.00 100.00 270 5.10 60.65 -10.00 133.91 -10.00 100.00 275 3.98 64.70 -10.00 148.37 -10.00 100.00 280 5.08 68.02 -10.00 134.08 -10.00 100.00 285 5.41 71.75 -10.00 130.89 -10.00 100.00 290 6.18 75.48 -10.00 123.20 -10.00 100.00 295 6.09 79.47 -10.00 124.26 -10.00 100.00 300 5.73 83.49 -10.00 127.75 -10.00 100.00 305 5.73 87.49 -10.00 127.83 -10.00 100.00 310 5.67 91.49 -10.00 128.36 -10.00 100.00 315 5.56 95.47 -10.00 129.45 -10.00 100.00 320 5.11 99.39 -10.00 133.76 -10.00 100.00 325 5.69 103.42 -10.00 128.15 -10.00 100.00 330 7.29 107.70 -10.00 111.25 -10.00 100.00 335 10.00 112.38 -10.00 100.00 -10.00 100.00 340 11.67 116.93 -10.00 100.00 -10.00 100.00 345 13.01 121.45 -10.00 100.00 -10.00 100.00 350 14.88 118.69 -10.00 100.00 -10.00 100.00 355 14.18 113.68 -10.00 100.00 -10.00 100.00 Frequency Coordination and Interference Analysis Report 06/13/2012 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. Jeffrey E. Cowles Engineer III, Telecommunications COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: June 13, 2012 Frequency Coordination and Interference Analysis Report 06/13/2012 Page 11 of 11


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