Attachment STA Letter

This document pretains to SES-STA-20150223-00177 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2015022300177_1076720

19700 Janelia Farm Boulevard Ashburn, VA 20147 f (708) 726—5500 Fax (703) 726—5600 COMSEARCH® httpsiwiw.comsearch.com February 12, 2015 *** COMSEARCH *** ve iLE copy * * DO NOT MAIL ** *** TO ANYBODY *** Re: RigNet SatCom, Inc. GoMex ENSCO DS5, Gulf of Mexico C—Band, Transmit—Receive Earth Station Job Number: 150212COMSICO1 **A***** EXPEDITED FREQUENCY COORDINATION NOTICE ****<***** ****** RESPONSE REQUESTED BY FEBRUARY 24, 2015 ****** Dear Frequency Coordinator: This notice is being provided in accordance with Section 25.203(c) of the FCC Rules and Regulations. We are forwarding the attached expedited coordination data on behalf of RigNet SatCom, Inc., 1710 West Willow Street, Scott, Louisiana 70583 for a proposed C—band, transmit/receive earth station to be located on an oil platform designated GoMex ENSCO DS5, in the Gulf of Mexico. The coordination notice is being circulated to the owners (or their protection agents) of all existing or proposed terrestrial facilities operating in a shared frequency band within the coordination contours of the proposed station(s). We respectfully request that you examine this data for its interference potential with your system(s). In the event that your analysis identifies potential interference cases that have not been resolved, please contact Comsearch by February 24, 2015. If there are any questions concerning this coordination notice, please contact Comsearch. Sincerely, COMSEARCH Jeffrey E. Cowles EngineerIII, Telecommunications jcowles@comsearch.com Enclosure(s)

Page 1 of 3 COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726—5660 http://www.comsearch.com Date: 02/12/2015 Job Number: 150212COMSICO1 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code RIGNET Licensee Name RigNet SatCom, Inc. Site Information GoMex ENSCO DS5, GULF of MEXICO Venue Name Latitude (NAD 83) 28° 18‘ 0.0" N Longitude (NAD 83) 88° 6‘ 0.0" W Climate Zone B Rain Zone 1 Ground Elevation (AMSL) 0.0 m / 0.0 ft Link Information Satellite Type Geostationary Mode TR — Transmit—Receive Modulation Digital Satellite Arc 18° W to 139° West Longitude Azimuth Range 99.7° to 248.9° Corresponding Elevation Angles 8.8° / 25.9° Antenna Centerline (AGL) 30.48 m / 100.0 ft Antenna Information Receive Transmit Manufacturer Sea Tel Sea Tel Model 9797 9797 Gain / Diameter 38.5 dBi/ 2.4 m 41.7 dBi/2.4 m 3—d4B / 15—dB Beamwidth 2.04° / 3.80° 1.41° /2.64° 341KGIW to 682KGW Max Available RF Power (dBW/4 kHz) ~11.0 —11.0 (dBW/MHz) 13.0 13.0 Maximum EIRP (dBW/4 kHz) 30.7 30.7 (dBWI/MHz) 54.7 5§4.7 (dBw) 50.0 53.0 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) 341KG7W — GB2KG7W / 3700.0 — 4200.0 341KGTW — GB2KGTW / 5925.0 — 6425.0 Max Great Circle Coordination Distance 711.0 km / 441.7 mi 262.9 km / 163.3 mi Precipitation Scatter Contour Radius 644.2 km / 400.3 mi 100.0 km / 62.1 mi

Page 2 of 3 COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726—5660 http:/www.comsearch.com Coordination Values GoMex ENSCO DS5, GM Licensee Name RigNet SatCom, Inc. Latitude (NAD 83) 28° 18‘ 0.0" N Longitude (NAD 83) 88° 6‘ 0.0" W Ground Elevation (AMSL) 0.0 m / 0.0 ft Antenna Centerline (AGL) 30.48 m / 100.0 ft Antenna Model Sea Tel 9797 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 —11.0 (dBW/4 kHz) Receive 4.0 GHz Transmit6.1 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 0.00 99.62 ~10.00 412.20 ~10.00 158.40 5 0.00 94.68 ~10.00 412.20 ~10.00 158.40 10 0.00 89.74 ~10.00 412.20 ~10.00 158.40 15 0.00 84.80 ~10.00 412.20 —10.00 158.40 20 0.00 79.86 ~10.00 412.20 ~10.00 158.40 25 0.00 74.93 ~10.00 412.20 ~10.00 158.40 30 0.00 69.99 ~10.00 412.20 ~10.00 158.40 35 0.00 65.06 ~10.00 412.20 ~10.00 158.40 40 0.00 60.14 —10.00 412.20 ~10.00 158.40 45 0.00 55.22 ~10.00 412.20 ~10.00 158.40 50 0.00 50.31 ~10.00 412.20 ~10.00 158.40 55 0.00 45.42 —9.43 419.31 —9.43 160.93 60 0.00 40.55 —8.20 435.16 —8.20 166.57 65 0.00 35.71 —6.82 453.65 —6.82 173.19 70 0.00 30.91 —5.25 474.96 —5,.25 181.08 75 0.00 26.18 ~3.45 501.55 —3.45 190.64 80 0.00 21.56 ~1.34 534.49 ~1.34 202.83 85 0.00 17.14 115 575.97 1115 217.55 90 0.00 13.13 4.04 627.08 4.04 235.67 95 0.00 10.03 6.97 683.43 6.97 255.10 100 0.00 8.85 8.33 711.00 8.33 262.90 105 0.00 10.28 6.70 678.02 6.70 253.25 110 0.00 13.52 3.73 621.89 3.73 233.64 115 0.00 17.59 0.87 571.20 0.87 215.86 120 0.00 21.83 ~1.48 532.31 —1.48 202.05 125 0.00 26.01 —3.38 502.60 —3.38 191.01 130 0.00 30.12 ~4.97 479.02 ~4.97 182.54 135 0.00 34.12 —6.33 460.46 —6.33 175.64 140 0.00 37.99 —7.A9 444.55 —7.49 169.93 145 0.00 41.69 —8.50 431.23 —8.50 165.17 150 0.00 45.18 —9.37 420.05 —9.37 161.19 155 0.00 48.39 ~10.00 412.20 —10.00 158.40 160 0.00 51.23 ~10.00 412.20 ~10.00 158.40 165 0.00 53.61 —10.00 412.20 ~10.00 158.40 170 0.00 5§5.43 ~10.00 412.20 ~10.00 158.40 175 0.00 56.58 ~10.00 412.20 ~10.00 158.40 180 0.00 56.97 ~10.00 412.20 ~10.00 158.40 185 0.00 56.58 ~10.00 412.20 ~10.00 158.40

Page 3 of 3 COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726—5660 http:/www.comsearch.com Coordination Values GoMex ENSCO DS5, GM Licensee Name RigNet SatCom, Inc. Latitude (NAD 83) 28° 18‘ 0.0" N Longitude (NAD 83) 88° 6‘ 0.0" W Ground Elevation (AMSL) 0.0 m / 0.0 ft Antenna Centerline (AGL) 30.48 m / 100.0 ft Antenna Model Sea Tel 9797 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 ~11.0 (dBW/ 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 55.44 —10.00 412.20 —10.00 158.40 195 0.00 58.62 ~10.00 412.20 ~10.00 158.40 200 0.00 51.23 —10.00 412.20 ~10.00 158.40 205 0.00 48.38 —10.00 412.20 ~10.00 158.40 210 0.00 45.18 —9.37 420.04 —9.37 181.19 215 0.00 41.69 —8.50 431.22 —8.50 165.17 220 0.00 38.07 —7.52 444.25 —7.52 169.82 225 0.00 34.70 —6.51 457.94 —6.51 174.73 230 0.00 31.70 —5.53 471.06 —5.53 179.68 235 0.00 2919 4.63 483.97 ~4.63 184.32 240 0.00 27.31 —3.91 494.66 —3.91 188.16 245 0.00 2619 —3.45 501.49 —3.45 190.62 250 0.00 25.93 —3.35 503.10 —3.35 191.20 255 0.00 26.57 —3.61 499.14 —3.61 189.77 260 0.00 28.03 419 490.45 419 186.65 265 0.00 30.20 —5.00 478.61 —5.00 182.39 270 0.00 32.93 —5.94 465.20 —5.94 177.57 275 0.00 36.11 —6.94 452.02 —6.94 172.61 280 0.00 39.61 —7.95 438.52 —7.95 167.78 285 0.00 43.36 —8.93 425.72 —8.93 163.21 290 0.00 47.31 —9.87 413.78 —9.87 158.96 295 0.00 51.39 ~10.00 412.20 ~10.00 158.40 300 0.00 55.59 ~10.00 412.20 ~10.00 158.40 305 0.00 59.87 ~10.00 412.20 ~10.00 158.40 310 0.00 64.21 ~10.00 412.20 —10.00 158.40 315 0.00 68.60 ~10.00 412.20 ~10.00 158.40 320 0.00 73.04 ~10.00 412.20 —10.00 158.40 325 0.00 77.50 —10.00 412.20 ~10.00 158.40 330 0.00 81.98 —10.00 412.20 —10.00 158.40 335 0.00 86.47 —10.00 412.20 —10.00 158.40 340 0.00 90.97 ~10.00 412.20 —10.00 158.40 345 0.00 95.46 ~10.00 412.20 ~10.00 158.40 350 0.00 99.95 ~10.00 412.20 —10.00 158.40 355 0.00 104.42 ~10.00 412.20 ~10.00 158.40


Document Created: 2015-02-12 18:37:05
Document Modified: 2015-02-12 18:37:05
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