Attachment Coordination Letter

This document pretains to SES-LIC-20110208-00118 for License on a Satellite Earth Station filing.

IBFS_SESLIC2011020800118_867504

February 08, 2011 Re: Denali 20020, LLC MARCH AFB, CA (6.3 Meter) C-Band Transmit-Receive Earth Station Job Number: 110208COMSGE01 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 coordination data on behalf of Denali 20020, LLC, 66-C Teleport Drive, P.O. Box 430 Brewster, WA 98812 for a C-Band Transmit-Receive Earth Station to be located in MARCH AFB, CA. 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 us by March 15, 2011. If there are any questions concerning this coordination notice, please contact Comsearch. Sincerely, COMSEARCH Gary K. Edwards Senior Manager gedwards@comsearch.com Enclosure(s)

Date: 02/08/2011 Job Number: <PCNJobCode> Administrative Information Status ENGINEER PROPOSAL Call Sign <PCNCallSign> Licensee Code DENALI Licensee Name Denali 20020, LLC Site Information MARCH AFB, CA Venue Name Latitude (NAD 83) 33° 54' 23.0" N Longitude (NAD 83) 117° 14' 57.5" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 468.5 m / 1537.1 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 83° W to 83° West Longitude Azimuth Range 129.3° to 129.3° Corresponding Elevation Angles 36.3° / 36.3° Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer Vertex RSI Vertex RSI Model 6.3 meter 6.3 meter Gain / Diameter 46.3 dBi / 6.3 m 50.2 dBi / 6.3 m 3-dB / 15-dB Beamwidth 0.85° / 1.70° 0.56° / 1.20° Max Available RF Power (dBW/4 kHz) -18.8 (dBW/MHz) 5.2 Maximum EIRP (dBW/4 kHz) 31.4 (dBW/MHz) 55.4 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) 1M23G7W - 9M00G7W / 3700.0 - 4200.0 1M23G7W - 9M00G7W / 5925.0 - 5959.0 1M23G7W - 9M00G7W / 5991.0 - 6107.0 1M23G7W - 9M00G7W / 6139.0 - 6181.0 1M23G7W - 9M00G7W / 6243.0 - 6270.0 1M23G7W - 9M00G7W / 6332.0 - 6425.0 Max Great Circle Coordination Distance 302.4 km / 187.9 mi 127.0 km / 78.9 mi Precipitation Scatter Contour Radius 358.4 km / 222.7 mi 100.0 km / 62.1 mi

Coordination Values MARCH AFB, CA Licensee Name Denali 20020, LLC Latitude (NAD 83) 33° 54' 23.0" N Longitude (NAD 83) 117° 14' 57.5" W Ground Elevation (AMSL) 468.5 m / 1537.1 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Vertex 6.3 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 -18.8 (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 0.92 121.11 -10.00 224.71 -10.00 100.00 5 1.86 117.71 -10.00 198.36 -10.00 100.00 10 0.91 113.53 -10.00 225.00 -10.00 100.00 15 1.17 109.69 -10.00 215.22 -10.00 100.00 20 2.75 106.01 -10.00 177.30 -10.00 100.00 25 3.02 101.94 -10.00 171.05 -10.00 100.00 30 2.36 97.73 -10.00 186.27 -10.00 100.00 35 1.93 93.57 -10.00 196.36 -10.00 100.00 40 2.00 89.45 -10.00 194.50 -10.00 100.00 45 1.45 85.35 -10.00 206.93 -10.00 100.00 50 0.94 81.32 -10.00 223.33 -10.00 100.00 55 0.65 77.33 -10.00 240.26 -10.00 100.00 60 0.55 73.36 -10.00 246.68 -10.00 100.00 65 0.79 69.36 -10.00 231.66 -10.00 100.00 70 1.05 65.39 -10.00 218.65 -10.00 100.00 75 0.48 61.79 -10.00 252.04 -10.00 100.00 80 0.00 58.33 -10.00 285.28 -10.00 120.16 85 0.00 54.81 -10.00 285.28 -10.00 120.16 90 0.00 51.45 -10.00 285.28 -10.00 120.16 95 0.60 47.90 -10.00 243.58 -10.00 100.00 100 0.83 44.78 -9.28 233.80 -9.28 100.00 105 0.64 42.26 -8.65 248.69 -8.65 100.00 110 1.00 39.65 -7.96 231.05 -7.96 100.00 115 1.70 37.12 -7.24 213.01 -7.24 100.00 120 2.35 35.08 -6.63 202.57 -6.63 100.00 125 2.54 34.02 -6.29 200.13 -6.29 100.00 130 1.80 34.52 -6.45 214.10 -6.45 100.00 135 0.87 35.84 -6.86 244.82 -6.86 100.00 140 0.00 37.65 -7.39 302.41 -7.39 126.99 145 0.00 39.12 -7.81 299.59 -7.81 125.89 150 0.00 41.07 -8.34 296.07 -8.34 124.50 155 0.00 43.43 -8.94 292.08 -8.94 122.91 160 0.00 46.13 -9.60 287.84 -9.60 121.20 165 0.00 49.11 -10.00 285.28 -10.00 120.16 170 0.00 52.33 -10.00 285.28 -10.00 120.16 175 0.00 55.73 -10.00 285.28 -10.00 120.16 180 0.00 59.29 -10.00 285.28 -10.00 120.16 185 0.00 62.97 -10.00 285.28 -10.00 120.16

Coordination Values MARCH AFB, CA Licensee Name Denali 20020, LLC Latitude (NAD 83) 33° 54' 23.0" N Longitude (NAD 83) 117° 14' 57.5" W Ground Elevation (AMSL) 468.5 m / 1537.1 ft Antenna Centerline (AGL) 4.88 m / 16.0 ft Antenna Model Vertex 6.3 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 -18.8 (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 66.75 -10.00 285.28 -10.00 120.16 195 0.27 70.54 -10.00 275.99 -10.00 114.13 200 0.56 74.42 -10.00 246.09 -10.00 100.00 205 0.49 78.42 -10.00 250.68 -10.00 100.00 210 0.44 82.45 -10.00 256.24 -10.00 100.85 215 0.57 86.49 -10.00 245.54 -10.00 100.00 220 0.56 90.54 -10.00 246.14 -10.00 100.00 225 0.53 94.60 -10.00 247.94 -10.00 100.00 230 0.49 98.63 -10.00 250.67 -10.00 100.00 235 0.51 102.65 -10.00 249.32 -10.00 100.00 240 0.54 106.64 -10.00 246.92 -10.00 100.00 245 0.59 110.59 -10.00 244.05 -10.00 100.00 250 0.66 114.48 -10.00 239.63 -10.00 100.00 255 0.72 118.30 -10.00 236.07 -10.00 100.00 260 0.81 122.04 -10.00 230.99 -10.00 100.00 265 0.73 125.57 -10.00 235.69 -10.00 100.00 270 0.72 128.97 -10.00 236.29 -10.00 100.00 275 0.52 132.05 -10.00 248.20 -10.00 100.00 280 0.27 134.82 -10.00 276.01 -10.00 114.14 285 0.24 137.43 -10.00 280.14 -10.00 116.84 290 0.00 139.49 -10.00 285.28 -10.00 120.16 295 0.00 141.32 -10.00 285.28 -10.00 120.16 300 0.00 142.66 -10.00 285.28 -10.00 120.16 305 0.00 143.46 -10.00 285.28 -10.00 120.16 310 0.00 143.68 -10.00 285.28 -10.00 120.16 315 0.00 143.30 -10.00 285.28 -10.00 120.16 320 0.25 142.60 -10.00 278.56 -10.00 115.81 325 0.80 141.60 -10.00 231.08 -10.00 100.00 330 3.11 141.52 -10.00 168.87 -10.00 100.00 335 3.90 139.54 -10.00 149.90 -10.00 100.00 340 2.78 135.80 -10.00 176.58 -10.00 100.00 345 1.73 131.98 -10.00 201.79 -10.00 100.00 350 0.62 128.02 -10.00 242.02 -10.00 100.00 355 0.58 124.56 -10.00 244.54 -10.00 100.00

An interference study for this proposed earth station site indicates that no interference conflicts will exist based on the proposed operating parameters. A copy of the Coordination Final Report will be forwarded at the end of the Coordination period.


Document Created: 2011-02-08 08:51:37
Document Modified: 2011-02-08 08:51:37
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