Attachment Coordination Report

This document pretains to SES-REG-20100604-00676 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREG2010060400676_820384

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Broadcast Facilities, Inc. LOS ANGELES, CA Site A Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 April 06, 2010

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 04/06/2010 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 04/06/2010 Page 3 of 10

2. SUMMARY OF RESULTS There was no great circle interference cases were identified during the interference study of the proposed earth station. No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 04/06/2010 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 03/06/2010. Company American Tower, LLC CNG Communications, Inc. Frequency Coordination and Interference Analysis Report 04/06/2010 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 04/06/2010 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 04/06/2010 Job Number: 100306COMSTC02 Administrative Information Licensee Name Broadcast Facilities, Inc. Site Information LOS ANGELES, CA Venue Name SITE A Latitude (NAD 83) 34° 6' 58.0" N Longitude (NAD 83) 118° 14' 44.0" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 120.6 m / 395.7 ft Link Information Satellite Type Geostationary Mode RO - Receive-Only Modulation Analog and 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) 14.02 m / 46.0 ft Antenna Information Receive Manufacturer Prodelin Gain / Diameter 40.2 dBi / 3.0 m 3-dB / 15-dB Beamwidth 1.00° / 2.00° Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Frequency Information Receive 4.0 GHz Emission / Frequency Range (MHz) 36M0F3F / 3700.0 - 4200.0 36M0G7W / 3700.0 - 4200.0 Max Great Circle Coordination Distance 302.9 km / 188.2 mi Precipitation Scatter Contour Radius 372.5 km / 231.4 mi Frequency Coordination and Interference Analysis Report 04/06/2010 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 LOS ANGELES, CA Licensee Name Broadcast Facilities, Inc. Latitude (NAD 83) 34° 6' 58.0" N Longitude (NAD 83) 118° 14' 44.0" W Ground Elevation (AMSL) 120.6 m / 395.7 ft Antenna Centerline (AGL) 14.02 m / 46.0 ft Antenna Mode Receive 4.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Receive 4.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 3.47 108.55 -10.00 158.85 5 3.27 103.70 -10.00 163.46 10 3.05 98.85 -10.00 170.28 15 3.65 94.02 -10.00 155.01 20 3.96 89.17 -10.00 148.63 25 4.15 84.31 -10.00 145.66 30 3.76 79.46 -10.00 152.74 35 3.93 74.60 -10.00 149.40 40 3.59 69.79 -10.00 156.33 45 3.26 65.00 -10.00 163.63 50 2.81 60.26 -10.00 175.86 55 2.66 55.52 -10.00 179.47 60 2.32 50.86 -10.00 187.14 65 1.86 46.30 -9.64 200.09 70 1.56 41.79 -8.53 210.85 75 1.55 37.29 -7.29 217.06 80 1.13 33.09 -5.99 237.78 85 1.41 28.77 -4.47 237.20 90 1.82 24.59 -2.77 233.97 95 2.75 20.36 -0.72 221.69 100 3.53 16.68 1.44 216.58 105 3.50 14.62 2.87 225.77 110 2.87 14.69 2.82 240.90 115 2.74 15.90 1.97 238.66 120 2.58 18.41 0.38 232.27 125 2.42 21.78 -1.45 225.37 130 1.79 25.86 -3.32 231.51 135 2.15 29.23 -4.65 214.28 140 1.01 33.44 -6.11 241.15 145 0.00 37.41 -7.33 302.86 150 0.00 40.47 -8.18 297.13 155 0.00 43.24 -8.90 292.39 160 0.78 45.01 -9.33 236.32 165 1.07 46.69 -9.73 219.62 170 1.66 47.56 -9.93 204.09 175 1.75 48.31 -10.00 201.26 180 1.65 48.70 -10.00 204.03 185 1.48 48.58 -10.00 206.19 Frequency Coordination and Interference Analysis Report 04/06/2010 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 LOS ANGELES, CA Licensee Name Broadcast Facilities, Inc. Latitude (NAD 83) 34° 6' 58.0" N Longitude (NAD 83) 118° 14' 44.0" W Ground Elevation (AMSL) 120.6 m / 395.7 ft Antenna Centerline (AGL) 14.02 m / 46.0 ft Antenna Mode Receive 4.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Receive 4.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 2.01 47.22 -9.85 194.94 195 1.51 46.29 -9.64 206.92 200 1.07 44.85 -9.29 221.55 205 1.45 42.92 -8.82 212.42 210 1.14 42.07 -8.60 223.15 215 0.68 41.84 -8.54 246.61 220 0.90 41.43 -8.43 233.97 225 1.42 41.23 -8.38 215.69 230 1.03 42.40 -8.68 226.10 235 0.86 43.80 -9.04 233.04 240 1.07 45.27 -9.39 221.03 245 0.81 47.52 -9.92 231.23 250 0.71 49.94 -10.00 236.65 255 0.43 52.75 -10.00 257.96 260 0.71 55.40 -10.00 236.63 265 0.91 58.34 -10.00 225.40 270 1.69 61.19 -10.00 202.84 275 2.34 64.34 -10.00 186.74 280 2.49 67.84 -10.00 183.22 285 3.54 71.20 -10.00 157.45 290 3.24 75.04 -10.00 164.05 295 2.92 78.91 -10.00 173.44 300 1.76 82.86 -10.00 200.97 305 1.02 86.68 -10.00 219.64 310 1.02 90.43 -10.00 219.79 315 0.64 94.16 -10.00 241.07 320 0.00 97.80 -10.00 285.28 325 0.24 101.50 -10.00 279.65 330 0.40 105.16 -10.00 260.58 335 0.79 108.85 -10.00 232.04 340 1.35 112.58 -10.00 209.89 345 2.41 116.50 -10.00 185.10 350 3.44 118.19 -10.00 159.63 355 3.86 113.42 -10.00 150.70 Frequency Coordination and Interference Analysis Report 04/06/2010 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. Timothy O. Crutcher Frequency Planner COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: April 06, 2010 Frequency Coordination and Interference Analysis Report 04/06/2010 Page 10 of 10

Broadcast Facilities, Inc. Legend: Scale: 1:7,000,000 Great Circle: 4.0 GHz 19700 Janelia Farm Boulevard Precipitation Scatter: 4.0 GHz Ashburn, VA 20147 Earth Station Site:


Document Created: 2010-06-03 08:36:31
Document Modified: 2010-06-03 08:36:31
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