Attachment Freq Coordination

This document pretains to SES-MOD-20150728-00475 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2015072800475_1097192

Exhibit C FREQUENCY COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Skybox Imaging, Inc. FAIRBANKS, AK Satellite Earth Station Prepared By: COMSEARCH 19700 Janelia Farm Boulevard Ashburn, VA 20147 June 30, 2015

Exhibit C 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 06/30/2015 Page 2 of 10

Exhibit C 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 06/30/2015 Page 3 of 10

Exhibit C 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 limited transmit frequencies (2081.0 - 2083.0 MHz) of the proposed earth station eliminated any cases that were not cleared after these pathloss calculations were completed. Further, the proposed earth station will be located with an existing and licensed uplink (Call Sign E120025) operating under similar parameters. Frequency Coordination and Interference Analysis Report 06/30/2015 Page 4 of 10

Exhibit C 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 05/26/2015. Company 3G Wireless, LLC AERIAL VIDEO SYSTEMS America’s Cup Event Authority, LLC Borgeson, Tom R. Broadcast Sports Inc. CHENA BROADCASTING, LLC Casper, John Citywide News Network, Inc. Cohen, Elena Cowboys Stadium LP DCI II, INC. Fishman Brothers Enterprises Interlink Network Corp. GOODYEAR TIRE AND RUBBER COMPANY GSN News, Inc Heiden, William Information & Display Systems, Inc. Information Super Station, LLC Interlink Network Corp KTVF Fairbanks Loop Inc. Metro Networks Communications, Inc. Microwave Video Systems, LLC NSM Surveillance Onboard Images Pacific Bell Tel Com dba AT&T California REMOTE FACILITIES CONSULTING SERVICES RF Film, Inc RF Technology, LLC Randy Hermes Production Regulus Media Services, Inc. SBE Coordinator Alaska Region Speedshotz, Inc Total RF Marketing Inc Unisat, Inc. Village Video Productions Inc Western Technical Services Wolfe Air Aviation Frequency Coordination and Interference Analysis Report 06/30/2015 Page 5 of 10

Exhibit C 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 06/30/2015 Page 6 of 10

COMSEARCH Exhibit C Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Date: 06/30/2015 Job Number: 150526COMSGE01 Administrative Information Status ENGINEER PROPOSAL Call Sign Licensee Code SKYBOX Licensee Name Skybox Imaging, Inc. Site Information FAIRBANKS, AK Venue Name Latitude (NAD 83) 64° 48' 47.4" N Longitude (NAD 83) 147° 44' 0.2" W Climate Zone A Rain Zone 2 Ground Elevation (AMSL) 133.99 m / 439.6 ft Link Information Satellite Type Low Earth Orbit Mode TO - Transmit-Only Modulation Digital Minimum Elevation Angle 5.0° Azimuth Range 0.0° to 360° Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Transmit - FCC32 Manufacturer Orbital Systems Ltd Model 2.4TSX1 Gain / Diameter 32.0 dBi / 2.4 m 3-dB / 15-dB Beamwidth 4.20° / 8.40° Max Available RF Power (dBW/4 kHz) -4.4 (dBW/MHz) 19.6 Maximum EIRP (dBW/4 kHz) 27.6 (dBW/MHz) 51.6 Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Frequency Information Transmit 2.0 GHz Emission / Frequency Range (MHz) 124KF1D / 2081.0 - 2083.0 Max Great Circle Coordination Distance 316.1 km / 196.4 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi Frequency Coordination and Interference Analysis Report 06/30/2015 Page 7 of 10

COMSEARCH Exhibit C Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values FAIRBANKS, AK Licensee Name Skybox Imaging, Inc. Latitude (NAD 83) 64° 48' 47.4" N Longitude (NAD 83) 147° 44' 0.2" W Ground Elevation (AMSL) 133.99 m / 439.6 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Orbital 2.4 meter Antenna Mode Transmit 2.0 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -4.4 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 0.00 44.01 11.10 316.10 5 0.00 40.52 11.10 316.10 10 0.00 37.30 11.10 316.10 15 0.00 34.45 11.10 316.10 20 0.00 32.06 11.10 316.10 25 0.00 30.24 11.10 316.10 30 0.00 29.10 11.10 316.10 35 0.00 28.72 11.10 316.10 40 0.00 29.13 11.10 316.10 45 0.00 30.29 11.10 316.10 50 0.00 32.14 11.10 316.10 55 0.00 34.55 11.10 316.10 60 0.00 37.42 11.10 316.10 65 0.00 40.64 11.10 316.10 70 0.00 44.14 11.10 316.10 75 0.00 47.86 11.10 316.10 80 0.00 51.75 11.10 316.10 85 0.00 55.76 11.10 316.10 90 0.00 59.88 11.10 316.10 95 0.00 64.07 11.10 316.10 100 0.00 68.32 11.10 316.10 105 0.00 72.63 11.10 316.10 110 0.00 76.96 11.10 316.10 115 0.00 81.32 11.10 316.10 120 0.00 85.70 11.10 316.10 125 0.00 90.08 11.10 316.10 130 0.00 94.47 11.10 316.10 135 0.00 98.84 11.10 316.10 140 0.00 103.20 11.10 316.10 145 0.00 107.54 11.10 316.10 150 0.00 111.84 11.10 316.10 155 0.00 116.09 11.10 316.10 160 0.00 120.28 11.10 316.10 165 0.00 124.39 11.10 316.10 170 0.00 128.40 11.10 316.10 175 0.00 132.28 11.10 316.10 180 0.00 135.99 11.10 316.10 185 0.00 139.48 11.10 316.10 Frequency Coordination and Interference Analysis Report 06/30/2015 Page 8 of 10

COMSEARCH Exhibit C Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726-5500 http://www.comsearch.com Coordination Values FAIRBANKS, AK Licensee Name Skybox Imaging, Inc. Latitude (NAD 83) 64° 48' 47.4" N Longitude (NAD 83) 147° 44' 0.2" W Ground Elevation (AMSL) 133.99 m / 439.6 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Orbital 2.4 meter Antenna Mode Transmit 2.0 GHz Interference Objectives: Long Term -154.0 dBW/4 kHz 20% Short Term -131.0 dBW/4 kHz 0.0025% Max Available RF Power -4.4 (dBW/4 kHz) Transmit 2.0 GHz Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 190 0.00 142.70 11.10 316.10 195 0.00 145.55 11.10 316.10 200 0.00 147.94 11.10 316.10 205 0.00 149.76 11.10 316.10 210 0.00 150.90 11.10 316.10 215 0.00 151.28 11.10 316.10 220 0.00 150.87 11.10 316.10 225 0.00 149.71 11.10 316.10 230 0.00 147.86 11.10 316.10 235 0.00 145.45 11.10 316.10 240 0.00 142.58 11.10 316.10 245 0.00 139.36 11.10 316.10 250 0.00 135.86 11.10 316.10 255 0.00 132.14 11.10 316.10 260 0.00 128.25 11.10 316.10 265 0.00 124.24 11.10 316.10 270 0.00 120.12 11.10 316.10 275 0.00 115.93 11.10 316.10 280 0.00 111.68 11.10 316.10 285 0.00 107.37 11.10 316.10 290 0.00 103.04 11.10 316.10 295 0.00 98.68 11.10 316.10 300 0.00 94.30 11.10 316.10 305 0.00 89.92 11.10 316.10 310 0.00 85.53 11.10 316.10 315 0.00 81.16 11.10 316.10 320 0.00 76.80 11.10 316.10 325 0.00 72.46 11.10 316.10 330 0.00 68.16 11.10 316.10 335 0.00 63.91 11.10 316.10 340 0.00 59.72 11.10 316.10 345 0.00 55.61 11.10 316.10 350 0.00 51.60 11.10 316.10 355 0.00 47.72 11.10 316.10 Frequency Coordination and Interference Analysis Report 06/30/2015 Page 9 of 10

Exhibit C 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 30, 2015 Frequency Coordination and Interference Analysis Report 06/30/2015 Page 10 of 10


Document Created: 2015-07-28 07:12:15
Document Modified: 2015-07-28 07:12:15
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC