Attachment Frequency Coordinati

This document pretains to SES-MOD-20110708-00803 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2011070800803_901359

FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Globecomm Systems, Inc. LAUREL, MD (E010177) Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 June 21, 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 06/21/2011 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 06/21/2011 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-only earth station. Company CBS Communications Services Virginia Department of State Police State of Maryland, MIEMSS County of Fairfax, Virginia No other carriers reported potential interference cases. Frequency Coordination and Interference Analysis Report 06/21/2011 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 05/11/2011. Company 3G Wireless, LLC ADAMS COUNTY EMERGENCY MANAGEMENT AGENCY AERIAL VIDEO SYSTEMS ALASCOM, INC. Allegheny Power Service Corporation ANNE ARUNDEL, COUNTY OF ANNE ARUNDEL, COUNTY OF Ascent Media Network Services, LLC AT&T California Baltimore County of Maryland Baltimore Gas and Electric Company BAY BROADBAND COMMUNICATIONS LLC Bellsouth Telecommunications, Inc. Borgeson, Tom R. BROADCAST COMMUNICATIONS INC Broadcast Sports Inc. Calvert Cliffs Nuclear Power Plant Calvert County Government Carolina Telephone and Telegraph Co CARROLL COUNTY Casper, John CBS Communications Services CBS Corporation Cellco Partnership - Southern Virginia Cellco Partnership-Washington/Baltimore CenturyTel of the Southwest, Inc. CHESTER, COUNTY OF Chicago Comnet Corp Cincinnati Bell Wireless LLC Citywide News Network, Inc. CNG Communications, Inc. Cohen, Elana Columbia Gas Transmission Corporation Commonwealth of Pennsylvania Commonwealth of Pennsylvania-Radio Proj. Conectiv Communications, Inc. County of Culpeper County of Fairfax, Virginia County of Stafford Frequency Coordination and Interference Analysis Report 06/21/2011 Page 5 of 13

Cowboys Stadium LP C-SPAN CTAB Holdings LLC DAUPHIN COUNTY EMERGENCY MANAGEMENT DCI II, INC. DELAWARE STATE - DTI DELAWARE STATE - DTI Delmarva Power & Light Company Direct Broadcast Services, Inc. Egan LLC Enoch Pratt Free Library Exelon Generation Company, L.L.C FELHC, Inc. Franklin County Dept. of Emergency Servi Gannett Company, Inc. George Washington University Global Microwave Systems Inc. GOODYEAR TIRE AND RUBBER COMPANY GSN NEWS INC Hallco Unlimited, Inc. Hardy Cellular Telephone Company Hawaiian Telcom, Inc. Heiden Mr., William HF Enterprises, Inc Howard, County of Illinois Bell Telephone Company INDIANA BELL TELEPHONE COMPANY INC Information & Display Systems, Inc. Information Super Station, LLC International Communications Group, Inc. Kentucky RSA #3 Cellular General Partner Kentucky RSA #4 Cellular General Partner LANCASTER COUNTY OF Loudoun, County of M&T Bank MARYLAND EMERG MANAGEMENT AGENCY COMM Maryland Public Broadcasting Commission MARYLAND STATE DEPT OF GENERAL SERVICES Maryland State Highway Administration Maryland, State of - Dept.of Info & Tech Maryland, State of - DNR MARYLAND, STATE OF - MDOT - MTA MERCURY COMMUNICATIONS Metro Networks Communications, Inc. Michigan Bell Telephone Company Montgomery, County of Moreen, Steven K NATIONAL CABLE SATELLITE CORPORATION Navajo Communications Company NBC TELEMUNDO LICENSE CO. New Cingular Wireless PCS - VA/DC/MD New Cingular Wireless PCS LLC - DC New Cingular Wireless PCS LLC- DE/NH/RI New Cingular Wireless PCS, LLC - PA NEW ENGLAND DIGITAL DISTRIBUTION, INC. NEW ENGLAND SATELLITE SYSTEMS INC Frequency Coordination and Interference Analysis Report 06/21/2011 Page 6 of 13

Norfolk Southern Railway Northern Virginia Electric Cooperative NorthWest Suburbs Community Access Corp NSM Surveillance Ohio Bell Telephone Company On Scene Video Production Onboard Images Peco Energy Company Penn Service Microwave Co., Inc. PENNSYLVANIA MICROWAVE NETWORK INC. PENNSYLVANIA TURNPIKE COMMISSION Plateau Telecommunications, Inc. Plum TV, LLC Potomac Electric Power Company Prince George's County Prince William, County of Production & Satellite Services, Inc. Proxy Aviation PSEG Services Corporation Public Television Communications Center QUICK LINK CONNECTIONS INC QWEST CORPORATION Radiofone, Inc. RAPPAHANNOCK ELECTRIC COOPERATIVE RCC Minnesota Inc. - MN NE ND SD RCYM Holdings LLC Regulus Media Services, Inc. Remote Broadcasts, Inc. REMOTE FACILITIES CONSULTING SERVICES RF Central, LLC RF Film, Inc SECOM NET Southwestern Bell Telephone L.P. Speedshotz, Inc SPOTSYLVANIA COUNTY St. Mary's County of State of Maryland, MIEMSS State of WV DHHR/BPH STECS Total RF Marketing Inc Transcontinental Gas Pipeline Corp. Unisat, Inc. United Telephone - Southeast UNIVERSITY OF MARYLAND USCOC of Cumberland, Inc. Verizon California Inc. Verizon Maryland, Inc. Verizon New England Inc. Verizon New Jersey, Inc. Verizon New York, Inc. Verizon North Inc. Verizon Northwest Inc. Verizon Pennsylvania, Inc. VERIZON SOUTH INC. Verizon Virginia, Inc. Verizon Washington DC, Inc. Village Video Productions Inc Frequency Coordination and Interference Analysis Report 06/21/2011 Page 7 of 13

Virginia Department of State Police Virginia Electric & Power Company Vyvx, LLC Warrenton Fauquier Joint Communications Washington Gas Light Company WASHINGTON SUBURBAN SANITARY COMMISSION Westar Satellite Services LP Western Technical Services Wexler Video, Inc. Winged Vision Wisconsin Bell, Inc. WOLFE AIR AVIATION York County Dept of Emergency Services Frequency Coordination and Interference Analysis Report 06/21/2011 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 06/21/2011 Page 9 of 13

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 06/21/2011 Job Number: 110511COMSGE02 Administrative Information Status ENGINEER PROPOSAL Call Sign E010177 Licensee Code SWSITE Licensee Name Globecomm Systems, Inc. Site Information LAUREL, MD Venue Name Latitude (NAD 83) 39° 6' 45.5" N Longitude (NAD 83) 76° 49' 58.0" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 73.2 m / 240.2 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 31° W to 32° West Longitude Azimuth Range 121.5° to 122.4° Corresponding Elevation Angles 24.8° / 25.5° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Andrew Andrew Model ES9.3-46 ES9.3-46 Gain / Diameter 50.7 dBi / 9.3 m 53.9 dBi / 9.3 m 3-dB / 15-dB Beamwidth 0.50° / 1.00° 0.30° / 0.60° Max Available RF Power (dBW/4 kHz) -14.0 (dBW/MHz) 10.0 Maximum EIRP (dBW/4 kHz) 39.9 (dBW/MHz) 63.9 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) 4M00G7D - 6M80G7D / 3700.0 - 4200.0 4M00G7D - 6M80G7D / 6425.0 - 6534.0 4M00G7D - 6M80G7D / 6576.0 - 6645.0 Max Great Circle Coordination Distance 334.9 km / 208.1 mi 153.4 km / 95.3 mi Precipitation Scatter Contour Radius 495.7 km / 308.0 mi 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 06/21/2011 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 LAUREL, MD Licensee Name Globecomm Systems, Inc. Latitude (NAD 83) 39° 6' 45.5" N Longitude (NAD 83) 76° 49' 58.0" W Ground Elevation (AMSL) 73.2 m / 240.2 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Andrew 9.3 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 0.32 118.38 -10.00 270.97 -10.00 123.38 5 0.33 113.95 -10.00 269.16 -10.00 122.15 10 0.30 109.48 -10.00 273.23 -10.00 124.89 15 0.27 104.97 -10.00 277.06 -10.00 127.45 20 0.21 100.44 -10.00 284.55 -10.00 132.37 25 0.25 95.91 -10.00 279.15 -10.00 128.83 30 0.00 91.36 -10.00 285.28 -10.00 132.84 35 0.00 86.83 -10.00 285.28 -10.00 132.84 40 0.00 82.29 -10.00 285.28 -10.00 132.84 45 0.00 77.77 -10.00 285.28 -10.00 132.84 50 0.00 73.27 -10.00 285.28 -10.00 132.84 55 0.00 68.79 -10.00 285.28 -10.00 132.84 60 0.00 64.34 -10.00 285.28 -10.00 132.84 65 0.00 59.94 -10.00 285.28 -10.00 132.84 70 0.00 55.60 -10.00 285.28 -10.00 132.84 75 0.00 51.34 -10.00 285.28 -10.00 132.84 80 0.00 47.18 -9.84 286.27 -9.84 133.26 85 0.00 43.16 -8.88 292.53 -8.88 134.65 90 0.00 39.31 -7.86 299.25 -7.86 137.52 95 0.00 35.69 -6.81 306.35 -6.81 140.62 100 0.00 32.40 -5.76 314.29 -5.76 143.86 105 0.00 29.53 -4.76 321.42 -4.76 147.09 110 0.00 27.22 -3.87 327.78 -3.87 150.03 115 0.00 25.62 -3.22 332.54 -3.22 152.26 120 0.00 24.88 -2.90 334.88 -2.90 153.37 125 0.00 25.07 -2.98 334.28 -2.98 153.09 130 0.22 25.96 -3.36 329.38 -3.36 150.17 135 0.00 28.06 -4.20 325.38 -4.20 148.91 140 0.00 30.61 -5.15 318.63 -5.15 145.82 145 0.00 33.59 -6.16 310.91 -6.16 142.63 150 0.00 36.91 -7.18 303.86 -7.18 139.53 155 0.00 40.53 -8.19 297.03 -8.19 136.57 160 0.00 44.37 -9.18 290.57 -9.18 133.82 165 0.00 48.38 -10.00 285.28 -10.00 132.84 170 0.00 52.53 -10.00 285.28 -10.00 132.84 175 0.00 56.77 -10.00 285.28 -10.00 132.84 180 0.00 61.09 -10.00 285.28 -10.00 132.84 185 0.00 65.47 -10.00 285.28 -10.00 132.84 Frequency Coordination and Interference Analysis Report 06/21/2011 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 LAUREL, MD Licensee Name Globecomm Systems, Inc. Latitude (NAD 83) 39° 6' 45.5" N Longitude (NAD 83) 76° 49' 58.0" W Ground Elevation (AMSL) 73.2 m / 240.2 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model Andrew 9.3 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) 190 0.00 69.89 -10.00 285.28 -10.00 132.84 195 0.00 74.35 -10.00 285.28 -10.00 132.84 200 0.00 78.83 -10.00 285.28 -10.00 132.84 205 0.00 83.33 -10.00 285.28 -10.00 132.84 210 0.00 87.84 -10.00 285.28 -10.00 132.84 215 0.00 92.35 -10.00 285.28 -10.00 132.84 220 0.00 96.85 -10.00 285.28 -10.00 132.84 225 0.00 101.35 -10.00 285.28 -10.00 132.84 230 0.00 105.83 -10.00 285.28 -10.00 132.84 235 0.00 110.29 -10.00 285.28 -10.00 132.84 240 0.00 114.71 -10.00 285.28 -10.00 132.84 245 0.24 119.15 -10.00 280.31 -10.00 129.59 250 0.28 123.49 -10.00 275.86 -10.00 126.64 255 0.43 127.80 -10.00 257.08 -10.00 113.85 260 0.42 131.96 -10.00 258.84 -10.00 115.08 265 0.49 136.03 -10.00 251.37 -10.00 109.83 270 0.45 139.88 -10.00 255.50 -10.00 112.75 275 0.41 143.49 -10.00 259.66 -10.00 115.65 280 0.44 146.85 -10.00 256.99 -10.00 113.79 285 0.50 149.83 -10.00 250.31 -10.00 109.08 290 0.37 152.12 -10.00 264.72 -10.00 119.14 295 0.42 153.88 -10.00 258.39 -10.00 114.76 300 0.58 154.93 -10.00 244.67 -10.00 105.10 305 0.60 154.94 -10.00 243.10 -10.00 103.95 310 0.48 153.88 -10.00 252.20 -10.00 110.42 315 0.38 152.04 -10.00 263.26 -10.00 118.13 320 0.47 149.70 -10.00 253.37 -10.00 111.24 325 0.47 146.65 -10.00 253.25 -10.00 111.16 330 0.71 143.33 -10.00 236.74 -10.00 100.00 335 0.54 139.46 -10.00 247.44 -10.00 107.11 340 0.37 135.43 -10.00 264.02 -10.00 118.66 345 0.50 131.37 -10.00 250.31 -10.00 109.07 350 0.35 127.09 -10.00 267.34 -10.00 120.92 355 0.33 122.77 -10.00 268.78 -10.00 121.90 Frequency Coordination and Interference Analysis Report 06/21/2011 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: June 21, 2011 Frequency Coordination and Interference Analysis Report 06/21/2011 Page 13 of 13


Document Created: 2011-06-30 12:18:25
Document Modified: 2011-06-30 12:18:25
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