Attachment Freq Coord

This document pretains to SES-MOD-20101021-01308 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2010102101308_845986

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Liberty Broadcasting Network, Inc LYNCHBURG, VA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 October 13, 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 10/13/2010 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 10/13/2010 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 Alltel Communications of Virginia #1 LLC Cellco Partnership - Southern Virginia USCOC of Virginia RSA #3, Inc. No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 10/13/2010 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. Company AT&T COMMUNICATIONS OF VIRGINIA INC Alltel Communications of Virginia #1 LLC Alltel Communications of Virginia, Inc. Bellsouth Telecommunications, Inc. Carolina Power & Light Company Cellco Partnership - Southern Virginia Cellco Partnership-Newark-Dallas Verizon County of Franklin, VA METROPOLITAN AREA NETWORKS, INC. Mecklenburg Electric Cooperative NTELOS Telephone, Inc. National Radio Astronomy Observatory Norfolk Southern Railway Peach Acquisitions LLC ROANOKE COUNTY Roanoke, City of South & Central Wireless, LLC - SOVA USCOC of Virginia RSA #2, Inc. USCOC of Virginia RSA #3, Inc. Virginia Cellular LLC Virginia Department of State Police Virginia Electric & Power Company Virginia PCS Alliance, L.C. Virginia RSA #7, Inc. Frequency Coordination and Interference Analysis Report 10/13/2010 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 10/13/2010 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 10/13/2010 Administrative Information Call Sign E881163 Licensee Name Liberty Broadcasting Network, Inc Site Information LYNCHBURG, VA Latitude (NAD 83) 37° 21' 17.5" N Longitude (NAD 83) 79° 10' 49.1" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 240.79 m / 790.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 65° W to 143° West Longitude Azimuth Range 157.4° to 253.4° Corresponding Elevation Angles 44.2° / 12.0° Antenna Centerline (AGL) 6.1 m / 20.0 ft Antenna Information Receive - A40911 Transmit - A6091E Manufacturer ANDREW CORPORATION ANDREW CORPORATION Model ESA91-46 ESA91-46 Gain / Diameter 50.7 dBi / 9.1 m 53.9 dBi / 9.1 m 3-dB / 15-dB Beamwidth 0.50° / 1.00° 0.32° / 0.62° 51K2G7W - 36M0G7W Max Available RF Power (dBW/4 kHz) -13.01 -13.01 (dBW/MHz) -1.94 10.99 Maximum EIRP (dBW/4 kHz) 40.89 40.89 (dBW/MHz) 51.96 64.89 (dBW) 51.96 80.43 Interference Objectives: Long Term -150.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -130.0 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) 51K2G7W - 36M0G7W / 3700.0 - 4200.0 51K2G7W - 36M0G7W / 5925.0 - 6425.0 Max Great Circle Coordination Distance 189.1 km / 117.5 mi 121.1 km / 75.3 mi Precipitation Scatter Contour Radius 399.2 km / 248.0 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 10/13/2010 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 LYNCHBURG, VA Licensee Name Liberty Broadcasting Network, Inc Latitude (NAD 83) 37° 21' 17.5" N Longitude (NAD 83) 79° 10' 49.1" W Ground Elevation (AMSL) 240.79 m / 790.0 ft Antenna Centerline (AGL) 6.1 m / 20.0 ft Antenna Model ANDREW CORPORATION ESA91-46 Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -150.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -130.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -13.0 (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 0.60 106.27 -10.30 170.61 -10.10 106.33 5 1.55 111.23 -10.79 131.97 -12.57 100.00 10 1.55 116.13 -12.98 124.33 -20.10 100.00 15 2.96 121.17 -15.30 100.00 -20.10 100.00 20 2.96 123.61 -15.30 100.00 -20.10 100.00 25 2.96 120.47 -15.30 100.00 -20.10 100.00 30 2.96 117.18 -13.61 100.00 -20.10 100.00 35 3.97 114.15 -11.96 100.00 -18.40 100.00 40 3.97 110.57 -10.53 100.00 -11.24 100.00 45 3.91 106.90 -10.30 100.00 -10.10 100.00 50 5.02 103.40 -10.30 100.00 -10.10 100.00 55 5.02 99.58 -10.30 100.00 -10.10 100.00 60 4.60 95.69 -10.30 100.00 -10.10 100.00 65 5.22 91.86 -10.30 100.00 -10.10 100.00 70 5.22 87.97 -10.30 100.00 -10.10 100.00 75 4.94 84.12 -10.30 100.00 -10.10 100.00 80 5.48 80.19 -10.30 100.00 -10.10 100.00 85 5.59 76.33 -10.30 100.00 -10.10 100.00 90 5.60 72.51 -10.30 100.00 -10.10 100.00 95 5.92 68.66 -10.30 100.00 -10.10 100.00 100 6.95 64.60 -10.30 100.00 -10.10 100.00 105 6.95 60.93 -10.30 100.00 -10.10 100.00 110 8.07 56.85 -10.30 100.00 -10.10 100.00 115 8.07 53.38 -10.30 100.00 -10.10 100.00 120 7.87 50.20 -10.30 100.00 -10.10 100.00 125 8.42 46.75 -9.65 100.00 -10.10 100.00 130 8.42 43.91 -9.08 100.00 -10.10 100.00 135 7.47 42.17 -8.73 100.00 -10.10 100.00 140 7.91 39.71 -8.24 100.00 -10.10 100.00 145 7.91 38.07 -7.91 100.00 -10.10 100.00 150 6.83 37.98 -7.90 100.00 -10.10 100.00 155 7.13 37.12 -7.72 100.00 -10.10 100.00 160 6.27 38.00 -7.90 100.00 -10.10 100.00 165 6.27 38.56 -8.01 100.00 -10.10 100.00 170 6.07 39.74 -8.25 100.00 -10.10 100.00 175 6.07 40.41 -8.38 100.00 -10.10 100.00 180 5.22 41.47 -8.59 100.00 -10.10 100.00 185 5.22 41.24 -8.55 100.00 -10.10 100.00 Frequency Coordination and Interference Analysis Report 10/13/2010 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 LYNCHBURG, VA Licensee Name Liberty Broadcasting Network, Inc Latitude (NAD 83) 37° 21' 17.5" N Longitude (NAD 83) 79° 10' 49.1" W Ground Elevation (AMSL) 240.79 m / 790.0 ft Antenna Centerline (AGL) 6.1 m / 20.0 ft Antenna Model ANDREW CORPORATION ESA91-46 Antenna Mode Receive 4.0 GHz Transmit 6.1 GHz Interference Objectives: Long Term -150.0 dBW/MHz 20% -154.0 dBW/4 kHz 20% Short Term -130.0 dBW/MHz 0.01% -131.0 dBW/4 kHz 0.0025% Max Available RF Power -13.0 (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 4.26 41.50 -8.60 100.00 -10.10 100.00 195 4.34 40.26 -8.35 100.00 -10.10 100.00 200 3.29 39.60 -8.22 105.86 -10.10 100.00 205 3.29 37.55 -7.81 107.43 -10.10 100.00 210 3.29 35.14 -7.33 109.28 -10.10 100.00 215 2.44 33.07 -6.91 126.70 -10.10 100.00 220 2.44 30.07 -6.31 128.97 -10.10 100.00 225 1.06 27.83 -5.87 164.78 -10.10 100.00 230 1.06 24.43 -5.19 169.83 -10.10 100.00 235 1.09 20.86 -4.47 172.03 -10.10 100.00 240 1.26 17.10 -3.72 170.28 -7.78 100.00 245 1.32 13.57 -0.87 181.54 -4.67 100.00 250 2.07 10.51 4.19 184.27 -3.10 100.00 255 1.99 10.17 4.53 187.93 -3.10 100.00 260 2.16 11.86 1.98 171.06 -3.96 100.00 265 2.16 15.19 -3.34 144.55 -6.25 100.00 270 1.85 19.41 -4.18 148.73 -9.62 100.00 275 2.35 23.58 -5.02 134.32 -10.10 100.00 280 2.78 28.06 -5.91 124.14 -10.10 100.00 285 2.41 32.90 -6.88 127.29 -10.10 100.00 290 2.53 37.65 -7.83 121.40 -10.10 100.00 295 2.78 42.44 -8.79 113.20 -10.10 100.00 300 2.35 47.38 -9.78 117.68 -10.10 100.00 305 1.97 52.31 -10.30 123.49 -10.10 100.00 310 2.17 57.17 -10.30 119.34 -10.10 100.00 315 2.03 62.08 -10.30 122.15 -10.10 100.00 320 1.81 67.00 -10.30 127.15 -10.10 100.00 325 1.88 71.91 -10.30 125.69 -10.10 100.00 330 1.40 76.85 -10.30 136.12 -10.10 100.00 335 1.00 81.77 -10.30 147.03 -10.10 100.00 340 0.37 86.68 -10.30 189.13 -10.10 121.14 345 0.66 91.58 -10.30 165.61 -10.10 103.83 350 0.60 96.48 -10.30 170.89 -10.10 106.54 355 0.67 101.38 -10.30 165.08 -10.10 103.42 Frequency Coordination and Interference Analysis Report 10/13/2010 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: October 13, 2010 Frequency Coordination and Interference Analysis Report 10/13/2010 Page 10 of 10


Document Created: 2010-10-13 15:11:01
Document Modified: 2010-10-13 15:11:01
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