Attachment Coordination Report

This document pretains to SES-LIC-20110427-00516 for License on a Satellite Earth Station filing.

IBFS_SESLIC2011042700516_885567

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for CACI Technologies, Inc. ABERDEEN PROVING GROUND, MD Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 April 26, 2011

TABLE OF CONTENTS 1. CONCLUSIONS ............................................................................................................................................ 3 2. SUMMARY OF RESULTS ............................................................................................................................ 4 3. SUPPLEMENTAL SHOWING....................................................................................................................... 5 4. EARTH STATION COORDINATION DATA.................................................................................................. 9 5. CERTIFICATION......................................................................................................................................... 13 Frequency Coordination and Interference Analysis Report 04/26/2011 Page 2 of 13

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 04/26/2011 Page 3 of 13

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 Airband Communications Inc Clearwire Spectrum Holdings III, LLC FiberTower Network Services Corp. No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 04/26/2011 Page 4 of 13

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 03/04/2011. Company ACCELACOM-BALTIMORE LLC ALLEGANY COLLEGE OF MARYLAND AMFM RADIO LICENSES, LLC ART Licensing Corp. AT&T COMMUNICATIONS OF MARYLAND INC AT&T COMMUNICATIONS OF VIRGINIA INC AT&T CORP Airband Communications Inc Albermarle, County of, Virginia Allegheny Power Service Corporation Allentown SMSA Limited Partnership Alltel Communications LLC - Verizon SOVA Alltel Communications of Petersburg Inc Archdiocese of New York Dept of Educatio Atlantic Broadband (Delmar), LLC Atlantic Broadband (Penn), LLC Auburn Data Systems, LLC BALTIMORE CITY DEPARTMENT OF PUBLIC WORK BAY BROADBAND COMMUNICATIONS LLC BFI Licenses, LLC Baltimore County of Maryland Baltimore Gas and Electric Company Bedford, County of Believe Wireless, LLC Berks, County of Blaze Broadband Bucks, County of Business Only Broadband, LLC CHESTER, COUNTY OF COUNTY OF MORRIS Cambria, County of Cape May County Municipal Utilities Auth Cape May County, MIS Department Cellco Partnership - Southern Virginia Cellco Partnership- PA Region Cellco Partnership-Newark-Dallas Verizon Cellco Prtnrshp - Phil. Tri-State Rgn City of Laurel City of Ocean City, MD Clearwire Spectrum Holdings III, LLC Frequency Coordination and Interference Analysis Report 04/26/2011 Page 5 of 13

Clearwire Spectrum Holdings LLC Commonwealth of Pennsylvania-Radio Proj. Conterra Ultra Broadband, LLC County of Bergen, Bergen Cnty Police Dep County of Burlington County of Stafford County of Warren Cricket Communications, Inc Cumberland, County of D&E Communications, Inc. DELAWARE STATE - DTI Direct Broadcast Services, Inc. Eduro Networks LLC Enoch Pratt Free Library Essex County Sherrif's Office Exelon Generation Company, L.L.C FELHC, Inc. FORDHAM UNIVERSITY FiberTower Network Services Corp. Franklin County Dept. of Emergency Servi Frederick County GEORGE MASON UNIVERSITY INSTR FNDTION GETWIRELESS.NET Gannett Company, Inc. Globecomm Systems, Inc. HANOVER COUNTY HENRICO COUNTY Hardy Cellular Telephone Company Harrisonburg-Rockingham ECC Hopewell Radiology Group Hudson County MIS Department Hudson County Prosecutor's Office Huntingdon County of International Communications Group, Inc. Juniata County Emergency Services Kent County Levy Court King George County LACKAWANNA COUNTY LANCASTER COUNTY OF LB Tower Company LLC LOWER SHORE BROADBAND COOPERATIVE LYCOMING COUNTY Last Mile Inc. Lehigh, County of Loudoun County Public Schools Loudoun Wireless LLC Loudoun, County of M&T Bank METRO NETWORKS COMMUNICATIONS INC METROPOLITAN AREA NETWORKS, INC. MIT LINCOLN LABORATORY Manchester, Township of Maryland Port Administration Maryland Public Broadcasting Commission Maryland State Highway Administration Maryland, State of - Dept.of Info & Tech Frequency Coordination and Interference Analysis Report 04/26/2011 Page 6 of 13

Metropolitian Broadband Systems, LLC Middle East Broadcasting Networks, Inc. Mifflin County Millersburg Area School District Monroe County Control Center (PA) Montgomery, County of NEW JERSEY STATE POLICE NEW JERSEY TRANSIT RAIL OPERATIONS,INC NEW YORK CITY POLICE DEPARTMENT NOROC Broadband LLC NY Dept of Health and Mental Hygiene National Radio Astronomy Observatory Netrepid, Inc. New Cingular Wireless PCS LLC -NJ New Cingular Wireless PCS - VA/DC/MD New Cingular Wireless PCS LLC - DC New Cingular Wireless PCS of PA LLC New Cingular Wireless PCS, LLC - PA New Cingular Wireless PCS, LLC - WV/VA New Jersey Turnpike Authority New Jersey Turnpike Authority-Pkwy Div New Jersey, State of -NJ Transit New Kent County New York SMSA LP (NY Metro Region) New York, CIty of Nextlink Wireless, Inc Northeast Pennsylvania SMSA LTD Prtnrsh Northern Virginia Electric Cooperative Northrop Grumman Information Technology Ocean, County of-Div of Wireless Tech. Open Range Communications PENNSYLVANIA MICROWAVE NETWORK INC. PENNSYLVANIA TURNPIKE COMMISSION PSEG Services Corporation Philly Sports Wireless Pontis Communications, Inc. Port Authority of New York & New Jersey Port Networks, LLC Public Broadcasting Service QUALCOMM INC. QUICK LINK CONNECTIONS INC RAYTHEON COMPANY RapidDSL & Wireless, Inc. Roadstar Internet, Inc. Rural Broadband Network Services LLC SANOFI PASTEUR SCHUYLKILL, COUNTY OF SCTF NET SECOM NET SOUTHEASTERN PENNSYLVANIA TRANSIT AUTH Salem County Information Technology Shenandoah Personal Communications Co Somerset County, Maryland State of Maryland, MIEMSS State of WV DHHR/BPH STECS Stevens Institute of Technology Frequency Coordination and Interference Analysis Report 04/26/2011 Page 7 of 13

Synergy Telecommunications Corp TELEMARK NETWORKS, INC THE HERSHEY COMPANY Telecom Transport Management, Inc Thacher, Proffitt & Wood LLP Towerstream Corp Town of Woodbridge, Police Department Township of Jackson UNION, COUNTY OF UNIVERSITY OF MARYLAND USCOC of Cumberland, Inc. Verizon New Jersey, Inc. Verizon Virginia, Inc. Virginia Broadband, LLC Virginia Electric & Power Company WASHINGTON SUBURBAN SANITARY COMMISSION WEST VIRGINIA RADIO CORPORATION WHYY, INC. WICOMICO BOARD OF EDUCATION Warrenton Fauquier Joint Communications Washington Gas Light Company Wayne, Township of Western PA Internet Access, Inc. York County Dept of Emergency Services Frequency Coordination and Interference Analysis Report 04/26/2011 Page 8 of 13

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 04/26/2011 Page 9 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 04/26/2011 Job Number: 110304COMSGE03 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code CACII Licensee Name CACI Technologies, Inc. Site Information ABERDEEN PROVING GROUND, MD Venue Name OBJECTIVE SITE Latitude (NAD 83) 39° 28' 34.2" N Longitude (NAD 83) 76° 7' 32.8" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 8.84 m / 29.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 5° W to 143° West Longitude Azimuth Range 102.3° to 254.8° Corresponding Elevation Angles 5.8° / 9.1° Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer General Dynamics General Dynamics Model 9.2 Meter 9.2 Meter Gain / Diameter 58.0 dBi / 9.2 m 60.1 dBi / 9.2 m 3-dB / 15-dB Beamwidth 0.20° / 0.49° 0.16° / 0.39° Max Available RF Power (dBW/4 kHz) -14.0 (dBW/MHz) 10.0 Maximum EIRP (dBW/4 kHz) 46.1 (dBW/MHz) 70.1 Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Frequency Information Receive 11.0 GHz Transmit 14.0 GHz Emission / Frequency Range (MHz) 250KG7D - 36M0F8W / 10950.0 - 11200.0 250KG7D - 36M0F8W / 14000.0 - 14500.0 250KG7D - 36M0F8W / 11450.0 - 12700.0 Max Great Circle Coordination Distance 600.8 km / 373.3 mi 271.7 km / 168.8 mi Precipitation Scatter Contour Radius 591.9 km / 367.7 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 04/26/2011 Page 10 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values ABERDEEN PG, MD Licensee Name CACI Technologies, Inc. Latitude (NAD 83) 39° 28' 34.2" N Longitude (NAD 83) 76° 7' 32.8" W Ground Elevation (AMSL) 8.84 m / 29.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model General Dynamics 9.2 Meter Antenna Mode Receive 11.0 GHz Transmit 14.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -14.0 (dBW/4 kHz) Receive 11.0 GHz Transmit 14.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.33 102.21 -10.00 219.12 -10.00 105.82 5 0.28 97.23 -10.00 223.80 -10.00 109.70 10 0.00 92.25 -10.00 231.37 -10.00 115.80 15 0.00 87.28 -10.00 231.37 -10.00 115.80 20 0.00 82.30 -10.00 231.37 -10.00 115.80 25 0.00 77.33 -10.00 231.37 -10.00 115.80 30 0.00 72.36 -10.00 231.37 -10.00 115.80 35 0.00 67.39 -10.00 231.37 -10.00 115.80 40 0.00 62.42 -10.00 231.37 -10.00 115.80 45 0.00 57.45 -10.00 231.37 -10.00 115.80 50 0.00 52.49 -10.00 231.37 -10.00 115.80 55 0.00 47.54 -9.93 231.69 -9.93 115.99 60 0.00 42.59 -8.73 237.00 -8.73 118.97 65 0.00 37.65 -7.39 243.15 -7.39 122.34 70 0.00 32.73 -5.87 250.52 -5.87 126.22 75 0.00 27.83 -4.11 259.23 -4.11 129.52 80 0.00 22.97 -2.03 269.96 -2.03 135.19 85 0.00 18.19 0.51 283.68 0.51 142.81 90 0.00 13.55 3.70 299.07 3.70 153.50 95 0.00 9.29 7.80 327.10 7.80 170.29 100 0.00 6.23 12.14 600.85 12.14 271.68 105 0.00 6.42 11.82 451.89 11.82 210.66 110 0.00 9.63 7.41 324.17 7.41 168.81 115 0.00 13.32 3.89 300.21 3.89 154.16 120 0.00 16.94 1.27 287.98 1.27 145.27 125 0.00 20.48 -0.78 276.61 -0.78 138.84 130 0.00 23.90 -2.46 267.70 -2.46 133.97 135 0.00 27.19 -3.86 260.49 -3.86 130.17 140 0.00 30.31 -5.04 254.60 -5.04 128.36 145 0.00 33.24 -6.04 249.71 -6.04 125.79 150 0.00 35.92 -6.88 245.68 -6.88 123.64 155 0.00 38.32 -7.58 242.26 -7.58 121.86 160 0.00 40.38 -8.15 239.63 -8.15 120.42 165 0.00 42.05 -8.59 237.62 -8.59 119.31 170 0.00 43.29 -8.91 236.20 -8.91 118.52 175 0.00 44.06 -9.10 235.35 -9.10 118.05 180 0.00 44.31 -9.16 235.06 -9.16 117.89 185 0.00 44.05 -9.10 235.35 -9.10 118.05 Frequency Coordination and Interference Analysis Report 04/26/2011 Page 11 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values ABERDEEN PG, MD Licensee Name CACI Technologies, Inc. Latitude (NAD 83) 39° 28' 34.2" N Longitude (NAD 83) 76° 7' 32.8" W Ground Elevation (AMSL) 8.84 m / 29.0 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model General Dynamics 9.2 Meter Antenna Mode Receive 11.0 GHz Transmit 14.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -14.0 (dBW/4 kHz) Receive 11.0 GHz Transmit 14.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 0.00 43.29 -8.91 236.20 -8.91 118.52 195 0.00 42.05 -8.59 237.62 -8.59 119.31 200 0.00 40.38 -8.15 239.63 -8.15 120.42 205 0.00 38.32 -7.58 242.26 -7.58 121.86 210 0.00 35.92 -6.88 245.68 -6.88 123.64 215 0.00 33.24 -6.04 249.71 -6.04 125.79 220 0.00 30.32 -5.04 254.59 -5.04 128.36 225 0.00 27.19 -3.86 260.50 -3.86 130.17 230 0.00 23.90 -2.46 267.70 -2.46 133.98 235 0.00 20.48 -0.78 276.62 -0.78 138.84 240 0.00 16.95 1.27 287.96 1.27 145.25 245 0.00 13.32 3.89 300.22 3.89 154.16 250 0.00 10.25 6.74 319.27 6.74 166.25 255 0.00 9.06 8.07 426.77 8.07 200.31 260 0.00 10.43 6.54 317.88 6.54 165.51 265 0.00 13.60 3.66 298.81 3.66 153.35 270 0.00 17.63 0.84 285.55 0.84 143.87 275 0.00 22.05 -1.59 272.31 -1.59 136.47 280 0.00 26.67 -3.65 261.57 -3.65 130.73 285 0.00 31.40 -5.42 252.72 -5.42 127.38 290 0.00 36.19 -6.97 245.29 -6.97 123.43 295 0.00 41.03 -8.33 238.84 -8.33 119.98 300 0.30 45.85 -9.53 224.11 -9.53 109.45 305 0.28 50.75 -10.00 223.96 -10.00 109.83 310 0.31 55.65 -10.00 220.51 -10.00 106.98 315 0.45 60.56 -10.00 208.19 -10.00 100.00 320 0.44 65.49 -10.00 209.72 -10.00 100.00 325 0.44 70.43 -10.00 209.35 -10.00 100.00 330 0.38 75.37 -10.00 214.15 -10.00 101.61 335 0.47 80.30 -10.00 207.24 -10.00 100.00 340 0.47 85.25 -10.00 206.53 -10.00 100.00 345 0.68 90.19 -10.00 198.08 -10.00 100.00 350 0.52 95.13 -10.00 203.34 -10.00 100.00 355 0.45 100.08 -10.00 208.19 -10.00 100.00 Frequency Coordination and Interference Analysis Report 04/26/2011 Page 12 of 13

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. BY: _ Gary K. Edwards Senior Manager COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 DATED: April 26, 2011 Frequency Coordination and Interference Analysis Report 04/26/2011 Page 13 of 13


Document Created: 2011-04-26 08:53:43
Document Modified: 2011-04-26 08:53:43
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