Attachment Exhibit A

This document pretains to SES-MOD-20100128-00133 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2010012800133_798461

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Direct Shopping Network, LLC Glendale, California Call Sign: E070153 Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 January 28, 2010

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 01/28/2010 Page 2 of 11

1. CONCLUSIONS An interference study considering all existing, proposed and prior coordinated microwave facilities within the coordination contours of the earth station demonstrates that this site will operate satisfactorily with the common carrier microwave environment, based upon the restrictions noted in the Summary of Results (Section 2). Frequency Coordination and Interference Analysis Report 01/28/2010 Page 3 of 11

2. SUMMARY OF RESULTS A number of great circle interference cases were identified during the interference study of the 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 most cases. 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 and frequency separation are considered on the interfering paths, sufficient losses exist to negate harmful interference from occurring with the transmit/receive earth station. Further the transmit spectrum will be limited to frequencies 6010.0 to 6048.6 MHz, 6106.1 to 6137.6 MHz, 6167.9 to 6182.0 MHz, 6212.4 to 6241.3 MHz, 6271.8 to 6362.0 MHz, and 6387.8 to 6425.0 MHz. Company None No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 01/28/2010 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 in an Information-Only letter dated January 26, 2010. Company ANAHEIM CITY, COMMUNICATIONS DIVISION AT&T California AirSites2000, LLC American Tower, LLC BNSF Railway Company CNG Communications, Inc. COAST COMMUNITY COLLEGE DISTRICT California, State of KTLA INC Kern, County of LB Tower Company LLC 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 M.U.T. Licensing, LLC METROPOLITAN AREA NETWORKS, INC. METROPOLITAN WATER DIST OF SO CALIFORNIA MONTEBELLO CITY CALIFORNIA Microwave Service Company NEXTEL OF CALIFORNIA INC New Cingular Wireless PCS - Los Angeles Nextweb Inc Northrop Grumman Information Technology ORANGE, COUNTY OF, CA RIVERSIDE COUNTY OF San Bernardino County of California Southern California Edison Company Southern California Gas Company Frequency Coordination and Interference Analysis Report 01/28/2010 Page 5 of 11

Company (Continued) T-Mobile License LLC TV MICROWAVES CO Turn Wireless, LLC Ventura, County of Verizon California Inc. Verizon Wireless (VAW) LLC (CA) Western Technical Services Frequency Coordination and Interference Analysis Report 01/28/2010 Page 6 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 01/28/2010 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 01/27/2010 Job Number: 100126COMSJC03 Administrative Information Status ENGINEER PROPOSAL Call Sign E070153 Licensee Code DISHOP Licensee Name Direct Shopping Network, LLC Site Information GLENDALE, CALIFORNIA Venue Name Latitude (NAD 83) 34° 7' 52.2" N Longitude (NAD 83) 118° 15' 10.6" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 143.26 m / 470.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 109.1° to 219.4° Corresponding Elevation Angles 17.5° / 42.3° Antenna Centerline (AGL) 3.05 m / 10.0 ft Antenna Information Receive Transmit Manufacturer Vertex RSI Vertex RSI Model 4.8 Meter 4.8 Meter Gain / Diameter 43.8 dBi / 4.8 m 47.8 dBi / 4.8 m 3-dB / 15-dB Beamwidth 1.10° / 2.31° 0.69° / 1.45° Max Available RF Power (dBW/4 kHz) -16.5 (dBW/MHz) 7.5 Maximum EIRP (dBW/4 kHz) 31.3 (dBW/MHz) 55.3 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) 4M00G7W - 36M0G7W / 3700.0 - 4200.0 4M00G7W - 36M0G7W / 6010.0 - 6048.6 4M00G7W - 31M0G7W / 6106.1 - 6137.6 4M00G7W - 13M5G7W / 6167.9 - 6182.0 4M00G7W - 28M0G7W / 6212.4 - 6241.3 4M00G7W - 36M0G7W / 6271.8 - 6362.0 4M00G7W - 36M0G7W / 6387.8 - 6425.0 Max Great Circle Coordination Distance 293.9 km / 182.6 mi 129.7 km / 80.6 mi Precipitation Scatter Contour Radius 372.5 km / 231.4 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 01/28/2010 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 GLENDALE, CA Licensee Name Direct Shopping Network, LLC Latitude (NAD 83) 34° 7' 52.2" N Longitude (NAD 83) 118° 15' 10.6" W Ground Elevation (AMSL) 143.26 m / 470.0 ft Antenna Centerline (AGL) 3.05 m / 10.0 ft Antenna Model Vertex RSI 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 -16.5 (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 4.74 108.66 -10.00 137.07 -10.00 100.00 5 3.93 103.74 -10.00 149.34 -10.00 100.00 10 3.38 98.87 -10.00 161.00 -10.00 100.00 15 2.55 94.01 -10.00 182.00 -10.00 100.00 20 2.08 89.18 -10.00 192.70 -10.00 100.00 25 2.33 84.35 -10.00 187.01 -10.00 100.00 30 2.58 79.52 -10.00 181.20 -10.00 100.00 35 3.33 74.64 -10.00 162.03 -10.00 100.00 40 2.81 69.86 -10.00 175.81 -10.00 100.00 45 2.42 65.10 -10.00 184.99 -10.00 100.00 50 2.76 60.27 -10.00 177.03 -10.00 100.00 55 3.68 55.34 -10.00 154.42 -10.00 100.00 60 2.89 50.74 -10.00 174.12 -10.00 100.00 65 2.77 46.06 -9.58 178.83 -9.58 100.00 70 2.51 41.49 -8.45 190.39 -8.45 100.00 75 2.43 36.96 -7.19 198.19 -7.19 100.00 80 2.41 32.53 -5.81 205.16 -5.81 100.00 85 2.65 28.13 -4.23 205.36 -4.23 100.00 90 2.52 24.15 -2.57 216.54 -2.57 100.00 95 3.23 20.01 -0.53 211.80 -0.53 100.00 100 3.56 16.65 1.47 216.04 1.47 100.00 105 5.05 13.14 4.03 205.16 4.03 100.00 110 5.66 11.90 5.11 204.46 5.11 100.00 115 5.76 13.13 4.05 199.77 4.05 100.00 120 6.05 15.74 2.07 184.93 2.07 100.00 125 5.99 19.46 -0.23 172.26 -0.23 100.00 130 5.70 23.31 -2.19 162.76 -2.19 100.00 135 3.95 28.02 -4.19 180.45 -4.19 100.00 140 3.79 31.52 -5.47 177.09 -5.47 100.00 145 2.63 35.55 -6.77 195.91 -6.77 100.00 150 2.56 38.57 -7.66 193.17 -7.66 100.00 155 1.24 42.27 -8.65 219.75 -8.65 100.00 160 0.82 44.96 -9.32 234.05 -9.32 100.00 165 0.97 46.76 -9.75 223.01 -9.75 100.00 170 0.90 48.25 -10.00 225.70 -10.00 100.00 175 0.83 49.20 -10.00 229.47 -10.00 100.00 180 0.68 49.66 -10.00 238.72 -10.00 100.00 185 0.76 49.27 -10.00 233.65 -10.00 100.00 Frequency Coordination and Interference Analysis Report 01/28/2010 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 GLENDALE, CA Licensee Name Direct Shopping Network, LLC Latitude (NAD 83) 34° 7' 52.2" N Longitude (NAD 83) 118° 15' 10.6" W Ground Elevation (AMSL) 143.26 m / 470.0 ft Antenna Centerline (AGL) 3.05 m / 10.0 ft Antenna Model Vertex RSI 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 -16.5 (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 0.57 48.56 -10.00 245.11 -10.00 100.00 195 0.43 47.24 -9.86 258.46 -9.86 108.05 200 0.67 45.19 -9.38 242.79 -9.38 100.00 205 0.56 43.74 -9.02 251.52 -9.02 101.89 210 0.37 42.80 -8.79 271.76 -8.79 115.43 215 0.66 41.85 -8.54 247.81 -8.54 100.00 220 0.00 42.33 -8.67 293.91 -8.67 129.72 225 0.63 42.00 -8.58 249.70 -8.58 100.00 230 0.49 42.91 -8.81 257.99 -8.81 106.09 235 1.25 43.44 -8.95 217.81 -8.95 100.00 240 1.99 44.47 -9.20 198.38 -9.20 100.00 245 2.29 46.33 -9.65 189.53 -9.65 100.00 250 3.00 48.25 -10.00 171.39 -10.00 100.00 255 3.49 50.70 -10.00 158.42 -10.00 100.00 260 3.29 53.85 -10.00 162.86 -10.00 100.00 265 4.12 56.64 -10.00 146.05 -10.00 100.00 270 3.67 60.28 -10.00 154.70 -10.00 100.00 275 3.83 63.75 -10.00 151.31 -10.00 100.00 280 2.82 67.74 -10.00 175.57 -10.00 100.00 285 2.30 71.56 -10.00 187.77 -10.00 100.00 290 1.76 75.38 -10.00 201.13 -10.00 100.00 295 1.22 79.20 -10.00 213.61 -10.00 100.00 300 0.92 82.96 -10.00 224.56 -10.00 100.00 305 0.86 86.70 -10.00 228.20 -10.00 100.00 310 0.00 90.44 -10.00 285.28 -10.00 126.18 315 0.21 94.15 -10.00 284.32 -10.00 125.56 320 0.39 97.87 -10.00 261.79 -10.00 110.55 325 0.62 101.58 -10.00 242.01 -10.00 100.00 330 0.93 105.30 -10.00 224.12 -10.00 100.00 335 1.92 109.21 -10.00 196.66 -10.00 100.00 340 2.58 113.04 -10.00 181.31 -10.00 100.00 345 3.71 117.06 -10.00 153.71 -10.00 100.00 350 4.40 118.32 -10.00 141.78 -10.00 100.00 355 5.23 113.56 -10.00 132.62 -10.00 100.00 Frequency Coordination and Interference Analysis Report 01/28/2010 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 Principal Frequency Planner COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: January 28, 2010 Frequency Coordination and Interference Analysis Report 01/28/2010 Page 11 of 11


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Document Modified: 2019-04-22 21:54:15
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