Attachment Freq. Coordination

This document pretains to SES-STA-20121015-00932 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2012101500932_971010

Prepared By COMSEARCH 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Prepared For Stratos Offshore Services Company Concord, California Temporary Transmit-Only Earth Station Operation Dates: 10/19/2012 – 12/01/2012 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. Verbal and written coordination was conducted with the below listed carriers on September 28, 2012. Company AT&T California AT&T Mobility Wireless Operations Hldgs Alameda County of California American Tower, LLC BayRICS Joint Powers Authority CBS Broadcasting Inc CONTRA COSTA COUNTY COMMUNICATIONS DEPT. CRYSTAL SMR INC. California, State of Cellco Partnership - California City & County of San Francisco PUC County of San Mateo EAST BAY MUNICIPAL UTILITY DISTRICT Federal Communications Commission GTE Mobilnet of California LTD Partnersh ICG Telecom Group, Inc. - Debtor in poss KQED INC M.U.T. Licensing, LLC MODESTO IRRIGATION DISTRICT Marin County of California Napa, County of New Cingular Wireless PCS LLC - N CAL Pacific Gas and Electric Company ROMAN CATHOLIC COMMUNICATIONS CORP SAN FRANCISCO CITY & COUNTY CALIFORNIA SAN JOSE CITY OF (ECOMM) SANTA CRUZ COUNTY, CALIFORNIA Sacramento County Sacramento Municipal Utility District Sacramento Valley Limited Partnership Frequency Coordination and Interference Analysis Report 10/03/2012 Page 1 of 6

Company (Continued) San Joaquin County Santa Clara Valley Water District Santa Clara, County of Solano County Communications Division Sonoma County, California Union Pacific Railroad Company Western Technical Services Yolo Emergency Communications Agency Yolo, County of There are no unresolved interference objections with the stations contained in these applications. The following 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 10/03/2012 Page 2 of 6

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 07/12/2012 Job Number: 120709COMSJC02 Administrative Information Status TEMPORARY (Operation from 10/19/2012 to 12/01/2012) Call Sign TEMP12 Licensee Code SHELOF Licensee Name Stratos Offshore Services Company Site Information CONCORD, CALIFORNIA Venue Name Latitude (NAD 83) 38° 0' 24.1" N Longitude (NAD 83) 122° 2' 37.1" W Climate Zone A Rain Zone 3 Ground Elevation (AMSL) 10.97 m / 36.0 ft Link Information Satellite Type Geostationary Mode TO - Transmit-Only Modulation Digital Satellite Arc 87° W to 88° West Longitude Azimuth Range 131.3° to 132.3° Corresponding Elevation Angles 32.9° / 33.5° Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Information Transmit - FCC32 Manufacturer SeaTel Model 9797 Gain / Diameter 42.1 dBi / 2.4 m 3-dB / 15-dB Beamwidth 1.40° / 2.65° Max Available RF Power (dBW/4 kHz) -23.5 (dBW/MHz) 0.5 Maximum EIRP (dBW/4 kHz) 18.6 (dBW/MHz) 42.6 (dBW) 30.4 Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Frequency Information Transmit 6.1 GHz Emission / Frequency Range (MHz) 61K0G7W / 6247.0 - 6270 Max Great Circle Coordination Distance 108.2 km / 67.2 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 10/03/2012 Page 3 of 6

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values CONCORD, CA Licensee Name Stratos Offshore Services Company Latitude (NAD 83) 38° 0' 24.1" N Longitude (NAD 83) 122° 2' 37.1" W Ground Elevation (AMSL) 10.97 m / 36.0 ft Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Model SeaTel 9797 Antenna Mode Transmit 6.1 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -23.5 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 123.65 -10.00 108.20 5 0.00 119.80 -10.00 108.20 10 0.00 115.86 -10.00 108.20 15 0.00 111.83 -10.00 108.20 20 0.46 107.84 -10.00 100.00 25 0.83 103.75 -10.00 100.00 30 1.59 99.63 -10.00 100.00 35 2.64 95.43 -10.00 100.00 40 2.63 91.11 -10.00 100.00 45 2.83 86.78 -10.00 100.00 50 2.71 82.47 -10.00 100.00 55 2.71 78.17 -10.00 100.00 60 2.25 73.97 -10.00 100.00 65 1.77 69.86 -10.00 100.00 70 1.74 65.72 -10.00 100.00 75 1.58 61.69 -10.00 100.00 80 1.93 57.56 -10.00 100.00 85 2.10 53.58 -10.00 100.00 90 2.28 49.70 -10.00 100.00 95 2.04 46.20 -9.62 100.00 100 2.00 42.82 -8.79 100.00 105 1.71 39.89 -8.02 100.00 110 0.81 37.85 -7.45 100.00 115 0.60 35.75 -6.83 100.00 120 0.45 34.13 -6.33 100.00 125 0.40 33.02 -5.97 102.69 130 0.40 32.50 -5.80 102.75 135 0.39 32.67 -5.85 103.15 140 0.60 33.31 -6.07 100.00 145 0.63 34.75 -6.52 100.00 150 0.82 36.61 -7.09 100.00 155 0.64 39.19 -7.83 100.00 160 0.69 41.90 -8.55 100.00 165 0.32 45.21 -9.38 100.28 170 0.36 48.48 -10.00 100.00 175 0.36 51.99 -10.00 100.00 180 0.36 55.67 -10.00 100.00 Frequency Coordination and Interference Analysis Report 10/03/2012 Page 4 of 6

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values CONCORD, CA Licensee Name Stratos Offshore Services Company Latitude (NAD 83) 38° 0' 24.1" N Longitude (NAD 83) 122° 2' 37.1" W Ground Elevation (AMSL) 10.97 m / 36.0 ft Antenna Centerline (AGL) 2.44 m / 8.0 ft Antenna Model Seatel 9797 Antenna Mode Transmit 6.1 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -23.5 (dBW/4 kHz) Transmit 6.1 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 185 0.38 59.47 -10.00 100.00 190 0.39 63.38 -10.00 100.00 195 0.39 67.37 -10.00 100.00 200 0.31 71.45 -10.00 100.00 205 0.26 75.56 -10.00 103.43 210 0.36 79.69 -10.00 100.00 215 0.60 83.84 -10.00 100.00 220 0.95 88.02 -10.00 100.00 225 0.85 92.23 -10.00 100.00 230 1.00 96.45 -10.00 100.00 235 1.38 100.69 -10.00 100.00 240 1.36 104.87 -10.00 100.00 245 0.95 108.94 -10.00 100.00 250 1.03 113.05 -10.00 100.00 255 1.28 117.15 -10.00 100.00 260 0.97 120.99 -10.00 100.00 265 0.90 124.80 -10.00 100.00 270 0.63 128.36 -10.00 100.00 275 1.00 132.09 -10.00 100.00 280 0.95 135.39 -10.00 100.00 285 0.85 138.39 -10.00 100.00 290 0.92 141.18 -10.00 100.00 295 0.40 143.08 -10.00 100.00 300 0.23 144.74 -10.00 105.85 305 0.00 145.78 -10.00 108.20 310 0.00 146.41 -10.00 108.20 315 0.00 146.39 -10.00 108.20 320 0.00 145.72 -10.00 108.20 325 0.00 144.44 -10.00 108.20 330 0.00 142.60 -10.00 108.20 335 0.00 140.26 -10.00 108.20 340 0.00 137.44 -10.00 108.20 345 0.00 134.31 -10.00 108.20 350 0.00 130.94 -10.00 108.20 355 0.00 127.37 -10.00 108.20 Frequency Coordination and Interference Analysis Report 10/03/2012 Page 5 of 6

Certification I hereby certify that I am the technically qualified person responsible for the preparation of the frequency coordination data contained in this report. I am familiar with Parts 101 and 25 of the FCC Rules and Regulations and I have either prepared or reviewed the frequency coordination data submitted with this report, 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 Blvd. Ashburn, Va. 20147 DATED: October 3, 2012 Frequency Coordination and Interference Analysis Report 10/03/2012 Page 6 of 6


Document Created: 2012-10-15 11:25:17
Document Modified: 2012-10-15 11:25:17
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