Attachment Freq. Coordination

This document pretains to SES-MOD-20150128-00046 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2015012800046_1074285

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for West Virginia Educational Broadcasting Authority Charleston, West Virginia (Call Sign: E050283) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Virginia 20147 January 22, 2015

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 01/22/2015 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, based upon the restrictions noted in the Summary of Results (Section 2). Frequency Coordination and Interference Analysis Report 01/22/2015 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 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 existing transmit-receive earth station. Further, the transmit spectrum will be restricted to frequencies 5925.0 to 6048.0 MHz, 6079.0 to 6211.0 MHz, and 6242.0 to 6425.0 MHz. Company Alltel Communications, LLC – E. OH, WV AT&T Corporation Columbia Gas Transmission Corporation New Cingular Wireless PCS LLC – WV/NC/SC WV DHHR BPH, Office of EMS Com. Div. No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 01/22/2015 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. Expedited coordination data for this earth station was emailed and sent to the below listed carriers with a letter dated December 16, 2014. Company AT&T COMMUNICATIONS OF WEST VIRGINIA AT&T Corporation Alltel Communications LLC - Ohio Region Alltel Communications LLC-E OH WV Alltel Communications LLC-TriState Rgn American Electric Power Service Co Columbia Gas Transmission Corporation East Kentucky LLC dba Appalachian Wirele General Dynamics - OTS, Inc. Hardy Cellular Telephone Company KENTUCKY POWER COMPANY New Cingular Wireless PCS LLC - KY New Cingular Wireless PCS LLC - Ohio New Cingular Wireless PCS LLC- WV/NC/SC Norfolk Southern Railway OHIO VALLEY ELECTRIC COMPANY Texas Eastern Communications, LLC Verizon Wireless VAW LLC - West Virginia WV DHHR BPH, Office of EMS, Com. Div. West Virginia Educational Broadcasting West Virginia Media Holdings, LLC Frequency Coordination and Interference Analysis Report 01/22/2015 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 01/22/2015 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 01/22/2015 Job Number: 141216COMSJC01 Administrative Information Status ENGINEER PROPOSAL Call Sign E050283 Licensee Code S16663 Licensee Name West Virginia Educational Broadcasting Authority Site Information CHARLESTON, WEST VIRGINIA Venue Name Latitude (NAD 83) 38° 21' 9.0" N Longitude (NAD 83) 81° 37' 46.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 182.88 m / 600.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 99° W to 99° West Longitude Azimuth Range 206.8° to 206.8° Corresponding Elevation Angles 42.0° / 42.0° Antenna Centerline (AGL) 18.29 m / 60.0 ft Antenna Information Receive Transmit Manufacturer Prodelin Prodelin Model 3.8 Meter 3.8 Meter Gain / Diameter 42.0 dBi / 3.8 m 45.9 dBi / 3.8 m 3-dB / 15-dB Beamwidth 1.40° / 3.20° 0.60° / 1.60° 51K2G7W to 36M0G7W Max Available RF Power (dBW/4 kHz) -14.0 -14.0 (dBW/MHz) 10.0 10.0 Maximum EIRP (dBW/4 kHz) 31.9 31.9 (dBW/MHz) 55.9 55.9 (dBW) 42.97 71.44 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) 51K2G7W - 36M0G7W / 3700.0 - 4200.0 51K2G7W - 36M0G7W / 5925.0 - 6048.0 51K2G7W - 36M0G7W / 6079.0 - 6211.0 51K2G7W - 36M0G7W / 6242.0 - 6425.0 Max Great Circle Coordination Distance 285.3 km / 177.2 mi 132.8 km / 82.5 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 01/22/2015 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 CHARLESTON, WV Licensee Name West Virginia Educational Broadcasting Authority Latitude (NAD 83) 38° 21' 9.0" N Longitude (NAD 83) 81° 37' 46.0" W Ground Elevation (AMSL) 182.88 m / 600.0 ft Antenna Centerline (AGL) 18.29 m / 60.0 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 -14.0 (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 2.42 133.49 -10.00 184.89 -10.00 100.00 5 2.31 135.61 -10.00 187.54 -10.00 100.00 10 2.19 137.35 -10.00 190.13 -10.00 100.00 15 2.73 139.28 -10.00 177.77 -10.00 100.00 20 2.93 140.43 -10.00 173.20 -10.00 100.00 25 3.30 141.26 -10.00 162.83 -10.00 100.00 30 3.16 141.04 -10.00 166.03 -10.00 100.00 35 2.24 139.53 -10.00 189.01 -10.00 100.00 40 1.45 137.70 -10.00 206.90 -10.00 100.00 45 3.59 138.09 -10.00 156.33 -10.00 100.00 50 2.65 135.27 -10.00 179.54 -10.00 100.00 55 2.73 133.00 -10.00 177.75 -10.00 100.00 60 3.98 131.21 -10.00 148.39 -10.00 100.00 65 4.84 128.74 -10.00 135.75 -10.00 100.00 70 5.86 126.03 -10.00 126.53 -10.00 100.00 75 5.72 122.46 -10.00 127.93 -10.00 100.00 80 5.27 118.65 -10.00 132.23 -10.00 100.00 85 4.75 114.76 -10.00 136.95 -10.00 100.00 90 4.30 110.86 -10.00 143.39 -10.00 100.00 95 4.32 107.05 -10.00 143.00 -10.00 100.00 100 3.23 102.99 -10.00 164.41 -10.00 100.00 105 2.64 99.06 -10.00 179.82 -10.00 100.00 110 3.25 95.26 -10.00 163.91 -10.00 100.00 115 2.77 91.36 -10.00 176.72 -10.00 100.00 120 2.54 87.49 -10.00 182.15 -10.00 100.00 125 2.76 83.62 -10.00 177.12 -10.00 100.00 130 0.00 80.19 -10.00 285.28 -10.00 132.84 135 1.04 76.32 -10.00 219.18 -10.00 100.00 140 1.67 72.49 -10.00 203.55 -10.00 100.00 145 1.90 68.78 -10.00 197.28 -10.00 100.00 150 1.97 65.18 -10.00 195.36 -10.00 100.00 155 2.35 61.54 -10.00 186.62 -10.00 100.00 160 2.39 58.14 -10.00 185.57 -10.00 100.00 165 2.29 54.98 -10.00 187.80 -10.00 100.00 170 1.84 52.24 -10.00 198.83 -10.00 100.00 175 2.15 49.25 -10.00 191.17 -10.00 100.00 180 2.70 46.29 -9.64 180.24 -9.64 100.00 Frequency Coordination and Interference Analysis Report 01/22/2015 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 CHARLESTON, WV Licensee Name West Virginia Educational Broadcasting Authority Latitude (NAD 83) 38° 21' 9.0" N Longitude (NAD 83) 81° 37' 46.0" W Ground Elevation (AMSL) 182.88 m / 600.0 ft Antenna Centerline (AGL) 18.29 m / 60.0 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 -14.0 (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) 185 2.64 44.11 -9.11 184.33 -9.11 100.00 190 2.39 42.46 -8.70 191.79 -8.70 100.00 195 2.26 41.17 -8.36 196.42 -8.36 100.00 200 3.11 39.38 -7.88 179.66 -7.88 100.00 205 2.83 39.20 -7.83 186.17 -7.83 100.00 210 2.62 39.49 -7.91 190.46 -7.91 100.00 215 2.63 40.09 -8.08 189.57 -8.08 100.00 220 2.96 40.89 -8.29 181.14 -8.29 100.00 225 2.51 42.87 -8.80 188.64 -8.80 100.00 230 3.18 44.29 -9.16 171.64 -9.16 100.00 235 3.31 46.56 -9.70 163.99 -9.70 100.00 240 2.50 49.82 -10.00 183.18 -10.00 100.00 245 2.20 52.89 -10.00 189.95 -10.00 100.00 250 2.46 55.83 -10.00 183.91 -10.00 100.00 255 2.26 59.20 -10.00 188.55 -10.00 100.00 260 2.15 62.65 -10.00 191.01 -10.00 100.00 265 1.91 66.26 -10.00 196.87 -10.00 100.00 270 2.58 69.65 -10.00 181.19 -10.00 100.00 275 1.64 73.60 -10.00 204.16 -10.00 100.00 280 1.43 77.35 -10.00 207.52 -10.00 100.00 285 0.50 81.23 -10.00 249.83 -10.00 108.82 290 0.00 84.99 -10.00 285.28 -10.00 132.84 295 0.66 88.68 -10.00 239.64 -10.00 101.40 300 0.87 92.45 -10.00 227.16 -10.00 100.00 305 0.70 96.19 -10.00 237.19 -10.00 100.00 310 0.80 99.93 -10.00 231.30 -10.00 100.00 315 1.25 103.72 -10.00 212.80 -10.00 100.00 320 1.45 107.45 -10.00 206.97 -10.00 100.00 325 1.69 111.16 -10.00 202.77 -10.00 100.00 330 1.77 114.74 -10.00 200.69 -10.00 100.00 335 1.76 118.20 -10.00 201.00 -10.00 100.00 340 2.25 121.79 -10.00 188.72 -10.00 100.00 345 3.22 125.56 -10.00 164.48 -10.00 100.00 350 2.62 128.26 -10.00 180.38 -10.00 100.00 355 2.96 131.33 -10.00 172.51 -10.00 100.00 Frequency Coordination and Interference Analysis Report 01/22/2015 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. Jeffrey E. Cowles Engineer III, Telecommunications COMSEARCH 19700 Janelia Farm Boulevard Ashburn, Va. 20147 DATED: January 22, 2015 Frequency Coordination and Interference Analysis Report 01/22/2015 Page 10 of 10


Document Created: 2015-01-23 13:56:46
Document Modified: 2015-01-23 13:56:46
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