Attachment Frequency Coord. Rpt

This document pretains to SES-LIC-20120228-00221 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012022800221_940517

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for KSBJ Educational Foundation Humble, Texas Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 February 15, 2012

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 02/15/2012 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, based upon the restrictions noted in the Summary of Results (Section 2). Frequency Coordination and Interference Analysis Report 02/15/2012 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 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 proposed transmit-receive earth station. Further, the transmit spectrum will be limited to frequencies 5925.0 to 6388.7 MHz and 6421.0 to 6425.0 MHz. Company Centerpoint Energy, Inc. GTE Mobilnet of Texas RSA #17, Ltd. Partnership Houston, City of GTE Mobilnet of South Texas, Ltd. Partners New Cingular Wireless PCS LLC – S. Texas San Antonio MTA, L.P. Transcontinental Gas Pipeline Corp. Verizon Wireless Texas, LLC No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 02/15/2012 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. Expedited coordination data for this earth station was emailed and sent to the below listed carriers with a letter dated January 27, 2012. Company American National Insurance Company Austin Energy BLUEBONNET ELECTRIC COOPERATIVE INC Bell Atlantic Mobile Allentown-Verizon W CENTERPOINT ENERGY INC Central Telephone Company of Texas Cequel III Communications I, LLC Cingular Wireless of Texas RSA #16 LP Dallas MTA, L.P. Dobson Cellular Systems, Inc. ENTERPRISE PRODUCTS OPERATING LLC ERF Wireless Bundled Services, Inc. Equistar Chemicals, LP GTE Mobilnet of South Texas LTD Partners GTE Mobilnet of Texas RSA #17 LTD Prtnsh Great Western Communications, LLC Greater Harris County 911 Emergency Net Harris County ITC Houston, City of International Communications Group, Inc. JASPER NEWTON ELECTRIC COOPERATIVE LOWER COLORADO RIVER AUTHORITY MCI Communications Services Inc. METROPOLITAN AREA NETWORKS, INC. New Cingular Wireless PCS LLC - N Texas New Cingular Wireless PCS LLC - S Texas RAYTHEON COMPANY SAN BERNARD ELECTRIC COOPERATIVE INC Sam Houston Electric Cooperative San Antonio MTA, L.P. Sprintcom, Inc Stratos Offshore Services Company Frequency Coordination and Interference Analysis Report 02/15/2012 Page 5 of 11

Company (Continued) T-MOBILE USA, INC. TEXAS NEW MEXICO POWER COMPANY Texas Eastern Communications, Inc. Texas RSA 18 Limited Partnership Transcontinental Gas Pipeline Corp. Trunkline Gas Company, LLC Union Pacific Railroad Company Verizon Wireless Texas LLC - Houston GC Verizon Wireless Texas, LLC Verizon Wireless(VAW) LLC-AZ/CO/NM/NV/UT Frequency Coordination and Interference Analysis Report 02/15/2012 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 02/15/2012 Page 7 of 11

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 02/15/2012 Job Number: 120127COMSJC03 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code ZKSBJE Licensee Name KSBJ EDUCATIONAL FOUNDATION Site Information HUMBLE, TEXAS Venue Name Latitude (NAD 83) 29° 59' 37.7" N Longitude (NAD 83) 95° 14' 57.7" W Climate Zone B Rain Zone 2 Ground Elevation (AMSL) 24.38 m / 80.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 70° W to 139° West Longitude Azimuth Range 136.7° to 242.4° Corresponding Elevation Angles 45.5° / 31.3° Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Information Receive Transmit Manufacturer Prodelin Prodelin Model 3.8 Meter 3.8 Meter Gain / Diameter 41.8 dBi / 3.8 m 46.2 dBi / 3.8 m 3-dB / 15-dB Beamwidth 1.35° / 2.84° 0.87° / 1.83° Max Available RF Power (dBW/4 kHz) -13.2 (dBW/MHz) 3.8 Maximum EIRP (dBW/4 kHz) 33.0 (dBW/MHz) 50.0 (dBW) 50.0 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) 200KG1D / 3700.0 - 4200.0 200KG1D / 5925.0 - 6388.7 200KG1D / 6421.0 - 6425.0 Max Great Circle Coordination Distance 472.6 km / 293.6 mi 169.3 km / 105.2 mi Precipitation Scatter Contour Radius 488.2 km / 303.3 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 02/15/2012 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 HUMBLE, TX Licensee Name KSBJ EDUCATIONAL FOUNDATION Latitude (NAD 83) 29° 59' 37.7" N Longitude (NAD 83) 95° 14' 57.7" W Ground Elevation (AMSL) 24.38 m / 80.0 ft Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Model Prodelin 3.8 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 -13.2 (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 0.00 113.30 -10.00 412.20 -10.00 149.12 5 0.00 117.39 -10.00 412.20 -10.00 149.12 10 0.00 114.75 -10.00 412.20 -10.00 149.12 15 0.00 111.60 -10.00 412.20 -10.00 149.12 20 0.00 108.34 -10.00 412.20 -10.00 149.12 25 0.00 105.01 -10.00 412.20 -10.00 149.12 30 0.00 101.60 -10.00 412.20 -10.00 149.12 35 0.00 98.15 -10.00 412.20 -10.00 149.12 40 0.00 94.67 -10.00 412.20 -10.00 149.12 45 0.00 91.17 -10.00 412.20 -10.00 149.12 50 0.00 87.67 -10.00 412.20 -10.00 149.12 55 0.00 84.17 -10.00 412.20 -10.00 149.12 60 0.00 80.70 -10.00 412.20 -10.00 149.12 65 0.00 77.26 -10.00 412.20 -10.00 149.12 70 0.00 73.88 -10.00 412.20 -10.00 149.12 75 0.00 70.57 -10.00 412.20 -10.00 149.12 80 0.00 67.34 -10.00 412.20 -10.00 149.12 85 0.00 64.22 -10.00 412.20 -10.00 149.12 90 0.00 61.24 -10.00 412.20 -10.00 149.12 95 0.00 58.42 -10.00 412.20 -10.00 149.12 100 0.00 55.78 -10.00 412.20 -10.00 149.12 105 0.00 53.36 -10.00 412.20 -10.00 149.12 110 0.00 51.20 -10.00 412.20 -10.00 149.12 115 0.00 49.34 -10.00 412.20 -10.00 149.12 120 0.00 47.80 -9.99 412.37 -9.99 149.17 125 0.00 46.63 -9.72 415.72 -9.72 150.27 130 0.00 45.86 -9.54 418.00 -9.54 151.01 135 0.00 45.50 -9.45 419.06 -9.45 151.36 140 0.00 45.58 -9.47 418.85 -9.47 151.29 145 0.00 46.07 -9.59 417.37 -9.59 150.81 150 0.00 46.98 -9.80 414.72 -9.80 149.94 155 0.00 48.27 -10.00 412.20 -10.00 149.12 160 0.00 49.92 -10.00 412.20 -10.00 149.12 165 0.00 51.88 -10.00 412.20 -10.00 149.12 170 0.00 53.60 -10.00 412.20 -10.00 149.12 175 0.00 54.67 -10.00 412.20 -10.00 149.12 180 0.00 55.04 -10.00 412.20 -10.00 149.12 Frequency Coordination and Interference Analysis Report 02/15/2012 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 HUMBLE, TX Licensee Name KSBJ EDUCATIONAL FOUNDATION Latitude (NAD 83) 29° 59' 37.7" N Longitude (NAD 83) 95° 14' 57.7" W Ground Elevation (AMSL) 24.38 m / 80.0 ft Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Model Prodelin 3.8 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 -13.2 (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) 185 0.00 54.67 -10.00 412.20 -10.00 149.12 190 0.00 53.60 -10.00 412.20 -10.00 149.12 195 0.00 51.88 -10.00 412.20 -10.00 149.12 200 0.00 49.62 -10.00 412.20 -10.00 149.12 205 0.00 46.91 -9.78 414.91 -9.78 150.00 210 0.00 43.84 -9.05 424.20 -9.05 153.05 215 0.00 40.68 -8.23 434.73 -8.23 156.51 220 0.00 37.83 -7.45 445.17 -7.45 159.97 225 0.00 35.39 -6.72 454.99 -6.72 163.23 230 0.00 33.44 -6.11 463.49 -6.11 166.07 235 0.00 32.08 -5.66 469.20 -5.66 168.19 240 0.00 31.39 -5.42 472.58 -5.42 169.33 245 0.00 31.40 -5.42 472.53 -5.42 169.31 250 0.00 32.12 -5.67 469.04 -5.67 168.14 255 0.00 33.50 -6.12 463.26 -6.12 165.99 260 0.00 35.46 -6.74 454.71 -6.74 163.14 265 0.00 37.91 -7.47 444.86 -7.47 159.87 270 0.00 40.77 -8.26 434.41 -8.26 156.41 275 0.00 43.94 -9.07 423.87 -9.07 152.94 280 0.00 47.38 -9.89 413.58 -9.89 149.57 285 0.00 51.01 -10.00 412.20 -10.00 149.12 290 0.00 54.80 -10.00 412.20 -10.00 149.12 295 0.00 58.72 -10.00 412.20 -10.00 149.12 300 0.00 62.73 -10.00 412.20 -10.00 149.12 305 0.00 66.83 -10.00 412.20 -10.00 149.12 310 0.00 70.98 -10.00 412.20 -10.00 149.12 315 0.00 75.18 -10.00 412.20 -10.00 149.12 320 0.00 79.41 -10.00 412.20 -10.00 149.12 325 0.00 83.66 -10.00 412.20 -10.00 149.12 330 0.00 87.93 -10.00 412.20 -10.00 149.12 335 0.00 92.20 -10.00 412.20 -10.00 149.12 340 0.00 96.47 -10.00 412.20 -10.00 149.12 345 0.00 100.72 -10.00 412.20 -10.00 149.12 350 0.00 104.95 -10.00 412.20 -10.00 149.12 355 0.00 109.15 -10.00 412.20 -10.00 149.12 Frequency Coordination and Interference Analysis Report 02/15/2012 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: February 15, 2012 Frequency Coordination and Interference Analysis Report 02/15/2012 Page 11 of 11


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