Attachment FreqCoord

This document pretains to SES-LIC-20101012-01286 for License on a Satellite Earth Station filing.

IBFS_SESLIC2010101201286_844860

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for RADIOHIO INC COLUMBUS, OH Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 October 12, 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 10/12/2010 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. Operation will be restricted to the bandwidth shown in Section 4 of this report. Frequency Coordination and Interference Analysis Report 10/12/2010 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 American Electric Power Service Corp. Dayton Power & Light Company Intelliwave, LLC New Par No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 10/12/2010 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 6/18/2010. Company AB Services LLC ALLTEL Communications, LLC AMERICAN ELECTRIC POWER SERVICE CORP. Allied Wireless Communications Corp. Butler County Sheriff - Communications COMWAVZ Cellco Partnership - Ohio City of Cincinnati DAYTON POWER & LIGHT COMPANY FELHC, Inc. Intelliwave, LLC International Communications Group, Inc. KENTUCKY POWER COMPANY LB Tower Company LLC MCI Communications Services Inc. METROPOLITAN AREA NETWORKS, INC. National Radio Astronomy Observatory New Cingular Wireless PCS LLC - Ohio New Cingular Wireless PCS-Southern Ohio New Par Norfolk Southern Railway OHIO VALLEY ELECTRIC COMPANY Ohio RSA 2 Limited Partnership Ohio RSA 5 Limited Partnership Ohio RSA 6 Limited Partnership Open Range Communications Springfield Cellular Telephone Company Texas Eastern Communications, Inc. Watch TV Company, Inc. Frequency Coordination and Interference Analysis Report 10/12/2010 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 10/12/2010 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 10/12/2010 Job Number: 101012COMSTC01 Administrative Information Licensee Name RADIOHIO INC Site Information COLUMBUS, OH Venue Name RSN ROOF Latitude (NAD 83) 39° 58' 12.0" N Longitude (NAD 83) 83° 1' 25.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 221.6 m / 727.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 146.5° to 249.6° Corresponding Elevation Angles 38.0° / 14.1° Antenna Centerline (AGL) 12.19 m / 40.0 ft Antenna Information Receive Transmit Manufacturer Prodelin 1251 Prodelin 1251 Gain / Diameter 38.0 dBi / 2.4 m 42.0 dBi / 2.4 m 3-dB / 15-dB Beamwidth 1.00° / 2.00° 1.00° / 2.00° 51K2G7W - 3M00G7W Max Available RF Power (dBW/4 kHz) -16.0 -16.0 (dBW/MHz) 8.0 8.0 Maximum EIRP (dBW/4 kHz) 26.0 26.0 (dBW/MHz) 37.07 50.0 (dBW) 37.07 54.75 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 – 3M00G7W / 3700.0 - 4200.0 51K2G7W - 3M00G7W / 5925.0 - 5930.0 51K2G7W - 3M00G7W / 6020.0 - 6048.0 51K2G7W - 3M00G7W / 6079.0 - 6137.0 51K2G7W - 3M00G7W / 6242.0 - 6271.0 51K2G7W - 3M00G7W / 6302.0 - 6330.0 51K2G7W - 3M00G7W / 6391.0 - 6425.0 Max Great Circle Coordination Distance 382.6 km / 237.7 mi 170.4 km / 105.9 mi Precipitation Scatter Contour Radius 522.0 km / 324.3 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 10/12/2010 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 COLUMBUS, OH Licensee Name RADIOHIO INC Latitude (NAD 83) 39° 58' 12.0" N Longitude (NAD 83) 83° 1' 25.0" W Ground Elevation (AMSL) 221.6 m / 727.0 ft Antenna Centerline (AGL) 12.19 m / 40.0 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 -16.0 (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 0.00 109.73 -10.00 285.28 -10.00 127.50 5 0.00 114.55 -10.00 285.28 -10.00 127.50 10 0.00 119.36 -10.00 285.28 -10.00 127.50 15 0.21 121.58 -10.00 284.35 -10.00 126.90 20 0.25 118.06 -10.00 279.51 -10.00 123.74 25 0.26 114.41 -10.00 277.98 -10.00 122.73 30 0.24 110.67 -10.00 279.86 -10.00 123.97 35 0.28 106.86 -10.00 275.29 -10.00 120.95 40 0.25 102.99 -10.00 278.67 -10.00 123.19 45 0.29 99.09 -10.00 273.96 -10.00 120.07 50 0.27 95.15 -10.00 276.38 -10.00 121.68 55 0.25 91.20 -10.00 278.41 -10.00 123.01 60 0.26 87.25 -10.00 277.57 -10.00 122.46 65 0.26 83.30 -10.00 278.06 -10.00 122.79 70 0.24 79.38 -10.00 280.09 -10.00 124.12 75 0.23 75.49 -10.00 281.97 -10.00 125.35 80 0.21 71.65 -10.00 284.16 -10.00 126.78 85 0.00 67.93 -10.00 285.28 -10.00 127.50 90 0.00 64.24 -10.00 285.28 -10.00 127.50 95 0.00 60.64 -10.00 285.28 -10.00 127.50 100 0.00 57.17 -10.00 285.28 -10.00 127.50 105 0.00 53.85 -10.00 285.28 -10.00 127.50 110 0.00 50.71 -10.00 285.28 -10.00 127.50 115 0.00 47.81 -9.99 285.36 -9.99 127.54 120 0.00 45.17 -9.37 289.31 -9.37 129.17 125 0.00 42.87 -8.80 293.01 -8.80 130.69 130 0.00 40.94 -8.30 296.29 -8.30 132.02 135 0.00 39.47 -7.91 298.95 -7.91 133.10 140 0.00 38.49 -7.63 300.79 -7.63 133.83 145 0.00 38.04 -7.51 301.64 -7.51 134.17 150 0.00 38.15 -7.54 301.43 -7.54 134.09 155 0.00 38.81 -7.72 300.17 -7.72 133.59 160 0.00 39.99 -8.05 297.99 -8.05 132.71 165 0.00 41.54 -8.46 295.26 -8.46 131.61 170 0.00 42.76 -8.78 293.19 -8.78 130.76 175 0.00 43.51 -8.96 291.95 -8.96 130.26 180 0.00 43.76 -9.03 291.54 -9.03 130.09 185 0.00 43.51 -8.96 291.95 -8.96 130.26 Frequency Coordination and Interference Analysis Report 10/12/2010 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 COLUMBUS, OH Licensee Name RADIOHIO INC Latitude (NAD 83) 39° 58' 12.0" N Longitude (NAD 83) 83° 1' 25.0" W Ground Elevation (AMSL) 221.6 m / 727.0 ft Antenna Centerline (AGL) 12.19 m / 40.0 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 -16.0 (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 0.00 42.76 -8.78 293.19 -8.78 130.76 195 0.00 41.54 -8.46 295.26 -8.46 131.61 200 0.00 39.89 -8.02 298.18 -8.02 132.79 205 0.00 37.86 -7.45 301.99 -7.45 133.07 210 0.00 35.49 -6.75 306.77 -6.75 134.99 215 0.00 32.84 -5.91 313.25 -5.91 137.38 220 0.00 29.95 -4.91 320.31 -4.91 140.33 225 0.00 26.87 -3.73 328.79 -3.73 143.96 230 0.00 23.61 -2.33 339.07 -2.33 148.50 235 0.00 20.22 -0.65 351.68 -0.65 154.25 240 0.00 17.03 1.22 366.02 1.22 161.02 245 0.00 14.84 2.71 377.80 2.71 168.37 250 0.21 13.91 3.41 382.60 3.41 170.44 255 0.21 14.88 2.68 375.72 2.68 165.11 260 0.23 17.27 1.07 361.33 1.07 157.65 265 0.22 20.60 -0.85 347.02 -0.85 151.16 270 0.22 24.49 -2.73 334.08 -2.73 145.69 275 0.21 28.71 -4.45 322.33 -4.45 140.84 280 0.00 33.20 -6.03 311.80 -6.03 137.04 285 0.00 37.74 -7.42 302.23 -7.42 133.16 290 0.00 42.36 -8.67 293.85 -8.67 131.03 295 0.23 47.00 -9.80 283.03 -9.80 125.75 300 0.26 51.74 -10.00 278.31 -10.00 122.95 305 0.26 56.51 -10.00 277.42 -10.00 122.36 310 0.26 61.31 -10.00 277.21 -10.00 122.23 315 0.27 66.13 -10.00 276.66 -10.00 121.86 320 0.27 70.96 -10.00 276.93 -10.00 122.04 325 0.26 75.80 -10.00 278.02 -10.00 122.76 330 0.27 80.65 -10.00 275.95 -10.00 121.40 335 0.23 85.50 -10.00 281.57 -10.00 125.09 340 0.00 90.36 -10.00 285.28 -10.00 127.50 345 0.00 95.21 -10.00 285.28 -10.00 127.50 350 0.00 100.05 -10.00 285.28 -10.00 127.50 355 0.00 104.89 -10.00 285.28 -10.00 127.50 Frequency Coordination and Interference Analysis Report 10/12/2010 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 12, 2010 Frequency Coordination and Interference Analysis Report 10/12/2010 Page 10 of 10


Document Created: 2010-10-12 14:56:53
Document Modified: 2010-10-12 14:56:53
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC