Attachment Supplement Infor

This document pretains to SES-MOD-20071221-01741 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2007122101741_618781

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for CLEAR CHANNEL SATELLITE SERVICES SAN ANTONIO, TX Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 January 25, 2008

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 01/25/2008 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 01/25/2008 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. 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 Bluebonnet Electric Cooperative, Inc. Enterprise Products Operating LLC San Antonio MTA, L.P. Texas RSA 18 Limited Partnership No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 01/25/2008 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 01/02/2008. Company AT&T Mobility Texas LLC - S TX Austin City Texas Austin Energy Advanced Tel-Com Systems Corporation Bexarmet Water District Bluebonnet Electric Cooperative, Inc. BorderComm Partners LP (XC) CGKC&H Rural Cellular Partnership City Public Service Cingular Wireless of Texas RSA #16 Ltd Dobson Cellular Systems, Inc. Enterprise Products Operating LLC Electric Reliability Council of Texas Guadalupe Valley Electric Cooperative Guadalupe Valley Telephone Coop., Inc. International Communications Group, Inc. Lower Colorado River Authority Medina Electric Cooperative Inc Pedernales Electric Cooperative Inc San Antonio MTA, L.P. T-Mobile License LLC Texas Electronic Transport Company Texas RSA 18 Limited Partnership Texas RSA 19 Ltd Partnership Texas RSA 20B1 Ltd Partnership Time Warner Entertnmnt-Advance/Newhouse Frequency Coordination and Interference Analysis Report 01/25/2008 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 01/25/2008 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 01/25/2008 Job Number: 080102COMSTC05 Administrative Information Licensee Name CLEAR CHANNEL SATELLITE SERVICES Site Information SAN ANTONIO, TX Latitude (NAD 83) 29° 38' 50.0" N Longitude (NAD 83) 98° 27' 14.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 338.33 m / 1110.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 121.9° to 243.3° Corresponding Elevation Angles 35.8° / 30.8° Antenna Centerline (AGL) 3.35 m / 11.0 ft Antenna Information Receive Transmit Manufacturer Suman Suman Model SM-T4.5R SM-T4.5R Gain / Diameter 43.6 dBi / 4.5 m 47.3 dBi / 4.5 m 3-dB / 15-dB Beamwidth 1.50° / 3.00° 0.80° / 1.60° 128KG1D 2M00G1D 11M0G1D Max Available RF Power (dBW/4 kHz) -14.1 -14.1 -14.12 (dBW/MHz) 9.9 9.9 9.88 Maximum EIRP (dBW/4 kHz) 33.2 33.2 33.18 (dBW/MHz) 57.2 57.2 57.18 (dBW) 48.25 60.2 67.57 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) 128KG1D / 3700.0 - 4200.0 128KG1D / 5925.0 - 6425.0 2M00G1D / 3700.0 - 4200.0 2M00G1D / 5925.0 - 6425.0 11M0G1D / 3700.0 - 4200.0 11M0G1D / 5925.0 - 6425.0 Max Great Circle Coordination Distance 305.9 km / 190.1 mi 140.1 km / 87.0 mi Precipitation Scatter Contour Radius 488.5 km / 303.5 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 01/25/2008 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 SAN ANTONIO, TX Licensee Name CLEAR CHANNEL SATELLITE SERVICES Latitude (NAD 83) 29° 38' 50.0" N Longitude (NAD 83) 98° 27' 14.0" W Ground Elevation (AMSL) 338.33 m / 1110.0 ft Antenna Centerline (AGL) 3.35 m / 11.0 ft 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 -14.1 (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 2.07 113.19 -10.00 192.86 -10.00 100.00 5 1.90 112.06 -10.00 197.31 -10.00 100.00 10 1.76 108.01 -10.00 200.97 -10.00 100.00 15 1.59 103.92 -10.00 205.71 -10.00 100.00 20 1.22 99.79 -10.00 213.61 -10.00 100.00 25 1.19 95.69 -10.00 214.55 -10.00 100.00 30 1.24 91.58 -10.00 213.01 -10.00 100.00 35 0.91 87.48 -10.00 225.41 -10.00 100.00 40 0.71 83.40 -10.00 236.65 -10.00 100.00 45 0.63 79.35 -10.00 241.51 -10.00 102.47 50 0.40 75.36 -10.00 260.59 -10.00 115.97 55 0.29 71.40 -10.00 273.73 -10.00 124.91 60 0.39 67.46 -10.00 262.45 -10.00 117.26 65 0.35 63.62 -10.00 266.53 -10.00 120.05 70 0.00 60.01 -10.00 285.28 -10.00 132.52 75 0.33 56.23 -10.00 269.00 -10.00 121.73 80 0.34 52.72 -10.00 268.47 -10.00 121.36 85 0.35 49.39 -10.00 266.96 -10.00 120.34 90 0.30 46.33 -9.65 275.61 -9.65 125.64 95 0.30 43.50 -8.96 279.95 -8.96 127.49 100 0.20 41.07 -8.34 295.91 -8.34 135.71 105 0.00 39.15 -7.82 299.53 -7.82 137.30 110 0.00 37.53 -7.36 302.64 -7.36 138.64 115 0.00 36.42 -7.03 304.84 -7.03 139.60 120 0.00 35.89 -6.88 305.93 -6.88 140.07 125 0.00 35.96 -6.90 305.79 -6.90 140.01 130 0.00 36.63 -7.10 304.43 -7.10 139.42 135 0.00 37.86 -7.45 301.99 -7.45 138.36 140 0.00 39.60 -7.94 298.71 -7.94 136.95 145 0.00 41.78 -8.52 294.84 -8.52 135.29 150 0.00 44.34 -9.17 290.61 -9.17 133.51 155 0.00 47.22 -9.85 286.22 -9.85 132.92 160 0.00 49.95 -10.00 285.28 -10.00 132.52 165 0.00 52.24 -10.00 285.28 -10.00 132.52 170 0.25 53.75 -10.00 278.79 -10.00 128.27 175 0.25 54.82 -10.00 278.79 -10.00 128.27 180 0.25 55.18 -10.00 278.79 -10.00 128.27 185 1.15 53.95 -10.00 215.82 -10.00 100.00 Frequency Coordination and Interference Analysis Report 01/25/2008 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 SAN ANTONIO, TX Licensee Name CLEAR CHANNEL SATELLITE SERVICES Latitude (NAD 83) 29° 38' 50.0" N Longitude (NAD 83) 98° 27' 14.0" W Ground Elevation (AMSL) 338.33 m / 1110.0 ft Antenna Centerline (AGL) 3.35 m / 11.0 ft 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 -14.1 (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 52.94 -10.00 215.82 -10.00 100.00 195 1.43 51.06 -10.00 207.57 -10.00 100.00 200 1.43 48.88 -10.00 207.52 -10.00 100.00 205 1.35 46.28 -9.63 211.53 -9.63 100.00 210 1.35 43.24 -8.90 215.17 -8.90 100.00 215 0.98 40.20 -8.11 231.13 -8.11 100.00 220 0.98 37.19 -7.26 236.06 -7.26 100.00 225 0.98 34.55 -6.46 240.53 -6.46 100.00 230 0.36 32.98 -5.96 292.23 -5.96 130.74 235 0.64 31.19 -5.35 269.04 -5.35 114.27 240 0.79 30.19 -4.99 261.66 -4.99 108.55 245 0.85 30.00 -4.93 258.21 -4.93 106.01 250 0.75 30.73 -5.19 263.10 -5.19 109.89 255 0.45 32.33 -5.74 282.17 -5.74 123.78 260 0.48 34.23 -6.36 274.56 -6.36 119.74 265 0.47 36.68 -7.11 270.86 -7.11 118.48 270 0.35 39.63 -7.95 279.58 -7.95 125.67 275 0.75 42.56 -8.73 241.14 -8.73 100.21 280 1.12 45.84 -9.53 218.91 -9.53 100.00 285 1.59 49.32 -10.00 205.58 -10.00 100.00 290 1.88 53.10 -10.00 197.75 -10.00 100.00 295 2.04 57.08 -10.00 193.68 -10.00 100.00 300 1.81 61.29 -10.00 199.76 -10.00 100.00 305 1.63 65.54 -10.00 204.53 -10.00 100.00 310 1.54 69.80 -10.00 204.50 -10.00 100.00 315 1.79 74.05 -10.00 200.08 -10.00 100.00 320 1.95 78.36 -10.00 195.79 -10.00 100.00 325 2.12 82.71 -10.00 191.73 -10.00 100.00 330 2.23 87.09 -10.00 189.26 -10.00 100.00 335 2.68 91.49 -10.00 178.83 -10.00 100.00 340 2.74 95.90 -10.00 177.63 -10.00 100.00 345 3.02 100.32 -10.00 171.02 -10.00 100.00 350 2.74 104.67 -10.00 177.63 -10.00 100.00 355 2.53 108.99 -10.00 182.32 -10.00 100.00 Frequency Coordination and Interference Analysis Report 01/25/2008 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: January 25, 2008 Frequency Coordination and Interference Analysis Report 01/25/2008 Page 10 of 10


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Document Modified: 2008-01-25 10:52:32
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