Attachment FreqCoord

This document pretains to SES-REG-20100503-00519 for Earth Station Registration on a Satellite Earth Station filing.

IBFS_SESREG2010050300519_809917

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Newcomb Broadcasting Corporation (WFAX-AM) FALLS CHURCH, VA Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 March 29, 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 03/29/2010 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 03/29/2010 Page 3 of 10

2. SUMMARY OF RESULTS There were no great circle interference cases identified during the interference study of the proposed earth station. No carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 03/29/2010 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 03/12/2010. Company AT&T COMMUNICATIONS OF VIRGINIA INC AT&T CORP MCI Communication Services, Inc. Frequency Coordination and Interference Analysis Report 03/29/2010 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 03/29/2010 Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 03/29/2010 Job Number: 100312COMSTC02 Administrative Information Licensee Name Newcomb Broadcasting Corporation Site Information FALLS CHURCH, VA Venue Name WFAX Latitude (NAD 83) 38° 52' 47.4" N Longitude (NAD 83) 77° 10' 16.9" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 95.5 m / 313.3 ft Link Information Satellite Type Geostationary Mode RO - Receive-Only Modulation Analog and Digital Satellite Arc 60° W to 143° West Longitude Azimuth Range 153.8° to 254.3° Corresponding Elevation Angles 41.6° / 10.0° Antenna Centerline (AGL) 2.13 m / 7.0 ft Antenna Information Receive - S40301 Manufacturer SCIENTIFIC-ATLANTA, INC Model 8006 Gain / Diameter 39.5 dBi / 3.0 m 3-dB / 15-dB Beamwidth 1.70° / 3.40° Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Frequency Information Receive 4.0 GHz Emission / Frequency Range (MHz) 36M0F3F / 3700.0 - 4200.0 36M0G7W / 3700.0 - 4200.0 Max Great Circle Coordination Distance 395.8 km / 245.9 mi Precipitation Scatter Contour Radius 540.0 km / 335.5 mi Frequency Coordination and Interference Analysis Report 03/29/2010 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 FALLS CHURCH, VA Licensee Name Newcomb Broadcasting Corporation Latitude (NAD 83) 38° 52' 47.4" N Longitude (NAD 83) 77° 10' 16.9" W Ground Elevation (AMSL) 95.5 m / 313.3 ft Antenna Centerline (AGL) 2.13 m / 7.0 ft Antenna Model SCIENTIFIC-ATLANTA, INC 8006 Antenna Mode Receive 4.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Receive 4.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.94 105.53 -10.50 221.00 5 0.96 110.47 -10.97 217.83 10 1.29 115.42 -16.00 186.42 15 1.29 120.34 -21.50 159.02 20 1.17 121.81 -21.50 162.84 25 1.31 118.57 -19.78 166.36 30 1.31 115.12 -15.65 187.55 35 1.11 111.50 -12.00 207.43 40 1.29 107.93 -10.50 209.14 45 1.27 104.22 -10.50 209.80 50 1.41 100.50 -10.50 205.84 55 1.33 96.70 -10.50 208.04 60 1.33 92.89 -10.50 208.09 65 1.33 89.08 -10.50 208.10 70 1.45 85.26 -10.50 204.75 75 1.25 81.48 -10.50 210.36 80 1.32 77.70 -10.50 208.47 85 1.25 73.99 -10.50 210.46 90 1.39 70.28 -10.50 206.44 95 1.29 66.71 -10.50 209.19 100 1.00 63.33 -10.50 217.71 105 1.01 59.96 -10.50 217.59 110 0.93 56.78 -10.50 221.71 115 1.02 53.68 -10.50 217.36 120 0.95 50.88 -10.50 220.48 125 0.89 48.34 -10.17 225.38 130 1.00 45.96 -9.69 222.02 135 0.57 44.39 -9.38 249.01 140 0.45 42.96 -9.09 260.26 145 0.40 41.92 -8.88 267.79 150 0.29 41.41 -8.78 281.41 155 0.00 41.57 -8.81 292.94 160 0.00 41.93 -8.89 292.46 165 0.00 42.77 -9.05 291.36 170 0.00 43.94 -9.29 289.85 175 0.23 44.49 -9.40 285.41 180 0.28 44.70 -9.44 278.37 185 0.23 44.49 -9.40 285.09 Frequency Coordination and Interference Analysis Report 03/29/2010 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 FALLS CHURCH, VA Licensee Name Newcomb Broadcasting Corporation Latitude (NAD 83) 38° 52' 47.4" N Longitude (NAD 83) 77° 10' 16.9" W Ground Elevation (AMSL) 95.5 m / 313.3 ft Antenna Centerline (AGL) 2.13 m / 7.0 ft Antenna Model SCIENTIFIC-ATLANTA, INC 8006 Antenna Mode Receive 4.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% Short Term -146.0 dBW/MHz 0.01% Receive 4.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0.28 43.67 -9.23 280.19 195 0.36 42.34 -8.97 271.95 200 0.44 40.58 -8.62 264.60 205 0.31 38.61 -7.95 285.19 210 0.00 36.43 -7.07 304.58 215 0.22 33.54 -5.92 310.42 220 0.00 30.75 -4.80 321.11 225 0.34 27.34 -3.43 311.56 230 0.37 23.99 -2.10 318.37 235 0.53 20.43 -0.67 309.53 240 0.43 16.93 1.34 336.71 245 0.46 13.28 3.22 347.43 250 0.41 10.51 5.99 377.44 255 0.45 9.60 6.90 395.78 260 0.58 11.04 5.46 355.84 265 1.01 13.99 2.51 300.60 270 1.11 18.03 0.68 282.59 275 1.25 22.44 -1.48 261.73 280 0.71 27.26 -3.40 277.15 285 1.04 31.90 -5.26 245.09 290 0.97 36.72 -7.19 236.93 295 0.65 41.62 -8.82 247.16 300 0.74 46.46 -9.79 235.96 305 0.80 51.34 -10.50 228.97 310 0.78 56.24 -10.50 229.67 315 0.56 61.17 -10.50 243.06 320 0.58 66.09 -10.50 241.99 325 0.70 71.00 -10.50 234.27 330 0.82 75.92 -10.50 227.60 335 1.12 80.85 -10.50 214.14 340 0.86 85.79 -10.50 225.59 345 1.03 90.73 -10.50 216.99 350 1.05 95.67 -10.50 216.24 355 1.09 100.60 -10.50 215.01 Frequency Coordination and Interference Analysis Report 03/29/2010 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: March 29, 2010 Frequency Coordination and Interference Analysis Report 03/29/2010 Page 10 of 10


Document Created: 2010-03-29 09:46:32
Document Modified: 2010-03-29 09:46:32
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC