Attachment Exhibit C

This document pretains to SES-STA-20060310-00418 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2006031000418_489871

Exhibit C FREQUENCY-COORDINATION AND INTERFERENCE ANALYSIS REPORT Prepared for Intelsat North AmericaLLC Nuevo, California _ (Call Sign: EO20169) Satellite Earth Station — . Prepared By: COMSEARCH 19700 JANELIA FARM BOULEVARD ASHBURN, VIRGINIA 20147 FEBRUARY 17, 2006

TABLE OF CONTENTS 1. CGONCLUSIONS ....,.2..2202202220esereevtreretsevererrersrrrersrtrrestrestestrseserereseressesrsrersrecrestrsseeressecvesisreresesireressesser breerrrnes 3 2, SUMMARY OF RESULTS.........02022200s6e¥reresrerrrtrreretrresrersrestrrereiarerressrterirrertrearsesisrrrssresssas{rccarssreresriserseserrsseeee 4 3. SUPPLEMENTAL SHOWING ...............2.lcz ees vevvesstevsessrersrrssrvcsesssinssserreceressresstererstrressessrerssersracsersrrnes 5 4. EARTH STATION COORDINATION DATA ..............cccc.l}}.esSavis en es se rre esnt rereeresvecsererrrerrree s ce r en t res 6 5. CERTIFICATION ...1.,..22.000000066 mm kess ersverrrrveerrrvrnrreeetrrerererrrerrererersreereererrrernevrereeserressrerressrerneceeswl 10 Frequency Coordination and Interference Analysis Report 02/17/2006 . Page 2 of 10

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, based . _ upon the restrictions noted in the Summary of Results (Section 2). Frequency Coordination and Interference Analysis Report 02/17/2006 Page 3 of 10

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 most cases. 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 and frequency separation are considered on the interfering paths, sufficient losses exist to negate harmful interference from occurring with the proposed transmit—only earth station. Further the transmit spectrum will be limited to frequencies 6525.0 to 6539.0 MHz, 6551.0 to 6579.0 MHz, 6591.0 to 6596.5 MHz, and 6603.5 to 6650.0 MHz. Company Southern California Edison Company Southern California Gas Company Imperial Irrigation District: Los Angeles SMSA Ltd. Partnership Cox Communications PCS, L.P. Union Pacific Railroad Company j California, State of No other, carriers reported potential interference casés. Frequency Coordination and Interférence Analysis Report 02/17/2006 Page 4 of 10

3. SUPPLEMENTAL SH‘OW'ING 6 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 July 6, 2005. An extension notice was forwarded on February 16, 2006. ‘Comgany AERA ENERGY LLC ANTELOPE VALLEY EAST KERN WATER AGENCY ARCHDIOCESE OF LOS ANGELES WELFARE CORP BNSF Railway Company CARITAS TELECOMMUNICATIONS COACHELLA VALLEY COUNTY WATER DISTRICT _ California, State of \ Cox Communications PCS, LP. GLENDALE CITY CALIFORNIA IMPERIAL IRRIGATION DISTRICT INCOMM DIVISION CHURCH OF SCIENTOLOGY KERN COUNTY CALIFORNIA LOS ANGELES CITY WATER & POWER Los Angeles City Info Technology Agency Los Angeles County Dept of Public Works Los Angeles County FCC Licensing Section Los Angeles County Metro Transit Auth Los Angeles SMSA Ltd. Partnership METROPOLITAN WATER DIST OF SO CALIFORNIA MOBILE RELAY ASSOCIATES INC Mile High Inc . . NEXTEL OF CALIFORNIA INC . New Cingular Wireless PCS LLC — N CAL New Cingular Wireless PCS LLC — S CAL — ORANGE COUNTY GSA COMMUNICATIONS DIV Palomar Observatory California Institute Pomana City / Police Dept. RIVERSIDE COUNTY OF SAN DIEGO COUNTY SAN DIEGO, CITY OF . San Bernardino County of California San Diego Gas & Electric Company Southern California Edison Company Southern California Gas Company The Boeing Company . UNIVERSITY OF CALIFORNIA, SAN DIEGO Union Pacific Railroad Company Verizon Wireless (VAW) LLC (CA) West End Communications Authority Frequency Coordination and Interference .Analysis Report 02/17/2006 Page 5 of 10

4. EARTH STATION COORDINATION DATA This section presents the data pertinent to frequency coordinatidn of the proposed earth station that was circulated to all carriers within its coordination contours. —Frequency Coordination and Interference Analysis Report 02/17/2006 _ _ Page 6 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726—5500 http://www.comsearch.com Date: . 08/08/2005 Job Number: 050706COMSICO1 Administrative Information Status ENGINEER PROPOSAL Call Sign E020169 Licensee Code INTELS Licensee Name Intelsat North America LLC Site Information NUEVO, CALIFORNIA Venue Name Latitude (NAD 83) 33° 47 46.5" N Longitude (NAD 83) . 117° 5515.0" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 550.0 m / 1804.5 ft Link Information Satellite Type Geostationary Mode TO — Transmit—Only — Modulation Digital Satellite Arc 55° W to 56° West Longitude Azimuth Range . ©106.4° to 107.1° Corresponding Elevation Angles 14.5° /15:3° Antenna Centerline (AGL) 11.0 m / 36.1 ft Antenna Information Transmit Manufacturer Vertex/RSI Model 16.4 Meter THC Gain / Diameter 59.0 dBi / 16.4 m 3—dB / 15—dB Beamwidth 0.20° / 0.40° 36MOFSF 48K8G7W — 44M0G7W Max Available RF Power _ (dBW/4 kHz) 0.0 27 > 485 (dBW/MHz) / 24.0 77 + 105 Maximum EIRP (dBW/4 kHz) 59.0 56.3 — 45.5 (dBW/MHz) 83.0 66.7 . — 69.5 (dBW) 86.0 66.7 = 86.0 Interference Objectives:' Long Term —154.0 dBW/4 kHz 20% | . Short Term —131.0 dBW/4 kHz 0.0025% Frequency Information Transmit 6.7 GHz Emission / Frequency Range (MHz) 3GMOFS3F / 6603.5 — 6649.0 43K8G7ZW — 12M0G7W / 6525.0 — 6539.0 48K8G7W — 26MOG7W / 6551.0 — 6579.0 43K8G7W — 3M5OG7ZW / 6591.0 — 6596.5 43K8G7W — 44M5G7W / 6603.5 — 6650.0 Max Great Circle Coordination Distance 181.1 km / 112.5 mi. Precipitation Scatter Contour Radius 115.6 km / 71.8 mi Frequency Coordination and InterferenceAnalysis Report 02/17/2006 Page 7 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726—5500 http://www.comsearch.com ‘Coordination Values NUEVO, CA Licensee Name Intelsat North America LLC Latitude (NAD 83) _ . 33° 47 46.5" N Longitude (NAD 83) — ' 117° 5‘ 15.0" W Ground Elevation (AMSL) 550.0 m / 1804.5 ft Antenna Centerline (AGL) 11.0 m / 36.1 ft Antenna Model Vertex/RS] 16.4 Meter THC Antenna Mode ' Transmit 6.7 GHz Interference Objectives: Long Term —154.0 dBW/4 kHz 20% i . Short Term —131.0 dBW/4 kHz 0.0025% Max Available RF Power 0.0 (dBW/4 kHz) Transmit 6.7 GHz Horizon Antenna _ ~ Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 0 211 106.03 —10.00 100.00 — 50_ . 2. 49 101.17 —10.00— 100.00 10 ' 3.19 ‘ 96.30 —10.00 100.00 15 3.53 _ 91.40 —10.00 100.00 20 ' 3.42 86.49 —10.00 100.00 25 3.32 81.58 —10.00 100.00 30 3.60 76.67 —10.00 100.00 35 3.81 71.75 . —10.00 _ 100.00 40 . 3.64 66.87 o2 C ~10.00 > 100.00 45 3.61 61.98 ‘ —10.00 100.00 50 3.23 57.15 —10.00 . 100.00 55 2.97 52.33 — —10.00 ©100.00 . 60 2.98 47.50 —~9.92 100.00 _: 65 3.57 42.58 ~8.73 100.00 . 70 _ 3.75 ’ ~37.75 | ~7.A42 100.00 75 . 3.41 33. 12 ~6.00 100.00 80 3.98 . 28.29 — - ~4.29 100.00 85 3.86 23.79° —2.41 ©100.00 90 3.71 19.55 | —0.28 102.65 95 2.97 16.15 1.79 124.01 100 3.19 12.96 418 128.90 105 3.37 1119 20— 5.78 . 131.54 110 4.14 10.93 6.04 119.65 115 4.30 ' 13.28 3.92 109.45 120 417 16.99 <o 1.25 101.31 125 4.32 20.92) —1.02 100.00 130 ~ 4.06 ©25.39 —3. 12 ~—100.00 135 4.83 29.67 ~4.81 100.00 140 4.02 34.59 —6.A7 100.00 145 . 4.48 39.21 ~7.83 100.00 150 . 3.93 44 12 —9.12 100.00 155 2.87 49.12 —10.00 100.00 160 | 2.58 53.98 —10.00 100.00 165 3.13 * 58.72 —10.00 100.00 170 3.73 63.51 ~10.00 100.00 175 4.03 68.37 —10.00 100.00 180 4.18 73.22 j —10.00 . _ 100.00 Frequency Coordination and Interference Analysis Report 02/17/2006 ' Page 8 of 10

COMSEARCH Earth Station Data Sheet 19700 Janelia Farm Boulevard, Ashburn, VA 20147 (703)726—5500 http:/{www.comsearch.com ~ Coordination Values NUEVO, CA Licensee Name Intelsat North America LLC Latitude (NAD 83) . ~—33° 47 46.5" N Longitude (NAD 83) 117° 5515.0" w Ground Elevation (AMSL) 550.0 m / 1804.5 ft Antenna Centerline (AGL) 11.0 m / 36.1 ft Antenna Model Vertex/RS! 186.4 Meter THC Antenna Mode ' Transmit 6.7 GHz Interference Objectives: Long Term —154.0 dBW/4 kHz 20% . _ Short Term —131.0 dBW/4 kHz 0.0025% Max Available RF Power _ _ 0.0 (dBW/4 kHz) . Transmit 6.7 GHz . Horizon Antenna Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) 185 5.78 — 178.09 T —10.00 100.00 190 6.11° 83.01 . ~10.00 ©100.00 195 6.28 87.95 ' —10.00 ©100.00 200 6.39 92.88 | —10.00 100.00 205 6.25 97.82 . —10.00 100.00 210 5.77 102.74 —10.00 100.00 215 5.60 . 107.66 —10.00 100.00 220 200 6.12 ~ 112.61 —10.00 100.00 225 5.72 117.50 . = —10.00 100.00 230 5.71 _ 122.40 . —10.00 100.00 235 > 5.56 127.28 ——10.00 100.00 240 _ 5.58 132.16 4C —10.00 100.00 ~ 245 5.55 _ 137.01 ‘ —10.00 100.00 250 . 4.99 141.71° —10.00 100.00 255 4.43 146.31 . —10.00 100.00 260 4.21 150.90 —10.00 _ 100.00 265 4.26 _ 155.44 _—10.00 — 100.00 ~ 270 4.46 159.86 —10.00 100.00 275 4.46 163.82 | —10.00 100.00 280 <o c .56 | 166.31 —10.00 100.00 285 2.27 166.80 —10.00 _ 100.00 _ 290 _ 1.385 165.75 —10.00 116.75 295 0.89 163.60 —10.00 130.65 300 . ©0.21 160.23 —10.00 180.20 305 0.00 ‘ 156.60 , —10.00 ~— 18113 310 0.21 152.65 ©10.00 180.22. 315 — 0.00 148.24 —10.00 181.13 320 0.00 143.77 —10.00. _ 18113 325 0.00 139.20 ~10.00 181. 13 330 0.00 134.54 —10.00 181.13 335 0.00 . 129.84 y —10.00 18113 340 0.00 125.09 —10.00 18113 345 0.00 120.32 ~10.00 18113 350 ~ 0.28 115.55 —10.00 172.85 355 1.34 > 110.83 —10.00 116.93 Frequency Coordination and Interference Analysis Report 02/17/2006 ' Page 9 of 10

5. CERTIFICATION I HEREBY CERTIFY THAT | AM THE TECHNICALLY QUALIFIED PERSON RESPONSIBLE FOR THE PREPARATION OF THE FREQUENCY COORDINATION DATA CONTAINED IN THIS APPLICATION, THAT | AM FAMILIAR WITH PARTS 101 AND 25 OF THE FCC RULES AND REGULATIONS, THAT 1 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. %fl“‘a 6; Conlew»" Jeffrey E. Cowles Frequency Planner COMSEARCH 19700 Janelia Farm Blvd. Ashburn, Va. 20147 <DATED: February 17, 2006 > ©Frequency Coordination and Interference Analysis Report 02/17/2006 Page 10 of 10


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Document Modified: 2019-05-30 02:08:11
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