Attachment Narrative

This document pretains to SES-AMD-INTR2011-04363 for Amended Filing on a Satellite Earth Station filing.

IBFS_SESAMDINTR201104363_917992

EXHIBIT A HNS License Sub, LLC Amendment to Modification of License Application File No. SES-MFS-20110912-01066 September 2011 NARRATIVE STATEMENT HNS License Sub, LLC (“Hughes”) hereby amends its application in File No. SES-MFS- 20110912-01066 to add a new 9.2m TT&C antenna to its Ka-band transmit/receive earth station license in Fillmore, CA. Hughes modifies and corrects the point of communication information on the Schedule B for all new antennas to reference Jupiter 1/UKSAT-14 rather than SPACEWAY 3/UKSAT-10. Hughes emphasizes that the point of communication of SPACEWAY 3/USASAT 70O remains accurate for the existing antenna on this license. Next, Hughes provides a coordination report from Comsearch for the proposed new 9.2m antenna that was inadvertently omitted from the application. See Attachment to this Exhibit A. Finally, Hughes corrects the frequency coordination information provided in the Schedule B for the maximum EIRP density toward the horizon for the 9.2 meter antenna to specify a lower figure. All other information in the application is unchanged by this amendment (including information resubmitted in the Schedule B to enable the application on IBFS to be validated).

ATTACHMENT

July 27, 2011 Re: HUGHES NETWORK SYSTEMS LIMITED FILLMORE, CA Ka-Band Transmit-Receive Earth Station Job Number: 110727COMSGE09 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 HUGHES NETWORK SYSTEMS LIMITED, 11717 Exploration Lane Germantown, MD 20876 for a Ka-Band Transmit-Receive Earth Station to be located in FILLMORE, 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 August 31, 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: 07/20/2011 Job Number: <PCNJobCode> Administrative Information Status ENGINEER PROPOSAL Call Sign <PCNCallSign> Licensee Code HUNESY Licensee Name HUGHES NETWORK SYSTEMS LIMITED Site Information FILLMORE, CA Venue Name Latitude (NAD 83) 34° 24' 16.7" N Longitude (NAD 83) 118° 53' 39.2" W Climate Zone A Rain Zone 4 Ground Elevation (AMSL) 292.0 m / 958.0 ft Link Information Satellite Type Geostationary Mode TR - Transmit-Receive Modulation Digital Satellite Arc 80° W to 120° West Longitude Azimuth Range 125.0° to 182.0° Corresponding Elevation Angles 32.6° / 50.0° Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Information Receive - FCC32 Transmit - FCC32 Manufacturer FCC REFERENCE FCC REFERENCE Model 32-25LOG(THETA) 32-25LOG(THETA) Gain / Diameter 63.2 dBi / 9.2 m 66.3 dBi / 9.2 m 3-dB / 15-dB Beamwidth 0.12° / 0.29° 0.08° / 0.19° Max Available RF Power (dBW/4 kHz) -0.3 (dBW/MHz) 23.7 Maximum EIRP (dBW/4 kHz) 66.0 (dBW/MHz) 90.0 Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Frequency Information Receive 18.0 GHz Transmit 28.0 GHz Emission / Frequency Range (MHz) 70K0G7W - 200KG7W / 19700.25 - 19700.5 1M00F2D / 28351.0 - 28353.0 300KG7W / 19700.25 - 19700.5 N0N / 20199.5 Max Great Circle Coordination Distance 136.2 km / 84.6 mi 129.6 km / 80.5 mi Precipitation Scatter Contour Radius 100.0 km / 62.1 mi 100.0 km / 62.1 mi

Coordination Values FILLMORE, CA Licensee Name HUGHES NETWORK SYSTEMS LIMITED Latitude (NAD 83) 34° 24' 16.7" N Longitude (NAD 83) 118° 53' 39.2" W Ground Elevation (AMSL) 292.0 m / 958.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model FCC Reference 32-25LOG(THETA) Antenna Mode Receive 18.0 GHz Transmit 28.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -0.3 (dBW/4 kHz) Receive 18.0 GHz Transmit 28.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 0 9.72 121.90 -10.00 100.00 -10.00 100.00 5 9.63 117.41 -10.00 100.00 -10.00 100.00 10 10.92 113.13 -10.00 100.00 -10.00 100.00 15 10.89 108.53 -10.00 100.00 -10.00 100.00 20 11.00 103.93 -10.00 100.00 -10.00 100.00 25 10.85 99.29 -10.00 100.00 -10.00 100.00 30 11.05 94.66 -10.00 100.00 -10.00 100.00 35 11.15 90.01 -10.00 100.00 -10.00 100.00 40 11.32 85.35 -10.00 100.00 -10.00 100.00 45 10.49 80.75 -10.00 100.00 -10.00 100.00 50 9.07 76.29 -10.00 100.00 -10.00 100.00 55 8.95 71.76 -10.00 100.00 -10.00 100.00 60 10.05 67.04 -10.00 100.00 -10.00 100.00 65 10.03 62.52 -10.00 100.00 -10.00 100.00 70 8.95 58.32 -10.00 100.00 -10.00 100.00 75 7.52 54.42 -10.00 100.00 -10.00 100.00 80 8.58 49.79 -10.00 100.00 -10.00 100.00 85 8.55 45.63 -9.48 100.00 -9.48 100.00 90 7.30 42.24 -8.64 100.00 -8.64 100.00 95 6.08 39.23 -7.84 100.00 -7.84 100.00 100 6.09 35.84 -6.86 100.00 -6.86 100.00 105 5.02 33.64 -6.17 100.00 -6.17 100.00 110 3.62 32.37 -5.75 100.00 -5.75 100.00 115 3.17 30.97 -5.27 100.00 -5.27 100.00 120 1.62 31.38 -5.42 100.00 -5.42 100.00 125 1.72 30.92 -5.26 100.00 -5.26 100.00 130 3.17 29.85 -4.87 100.00 -4.87 100.00 135 2.58 31.53 -5.47 100.00 -5.47 100.00 140 2.96 32.94 -5.94 100.00 -5.94 100.00 145 2.88 35.33 -6.70 100.00 -6.70 100.00 150 3.04 37.96 -7.48 100.00 -7.48 100.00 155 3.69 40.05 -8.07 100.00 -8.07 100.00 160 3.51 42.41 -8.69 100.00 -8.69 100.00 165 3.71 44.01 -9.09 100.00 -9.09 100.00 170 3.53 45.45 -9.44 100.00 -9.44 100.00 175 3.62 46.14 -9.60 100.00 -9.60 100.00 180 2.59 47.43 -9.90 100.00 -9.90 100.00 185 2.69 47.39 -9.89 100.00 -9.89 100.00

Coordination Values FILLMORE, CA Licensee Name HUGHES NETWORK SYSTEMS LIMITED Latitude (NAD 83) 34° 24' 16.7" N Longitude (NAD 83) 118° 53' 39.2" W Ground Elevation (AMSL) 292.0 m / 958.0 ft Antenna Centerline (AGL) 5.49 m / 18.0 ft Antenna Model FCC Reference 32-25LOG(THETA) Antenna Mode Receive 18.0 GHz Transmit 28.0 GHz Interference Objectives: Long Term -156.0 dBW/MHz 20% -151.0 dBW/4 kHz 20% Short Term -146.0 dBW/MHz 0.01% -128.0 dBW/4 kHz 0.0025% Max Available RF Power -0.3 (dBW/4 kHz) Receive 18.0 GHz Transmit 28.0 GHz Horizon Antenna Horizon Coordination Horizon Coordination Azimuth (°) Elevation (°) Discrimination (°) Gain (dBi) Distance (km) Gain (dBi) Distance (km) 190 2.54 47.98 -10.00 100.00 -10.00 100.00 195 1.01 50.26 -10.00 100.00 -10.00 100.00 200 0.75 51.64 -10.00 103.75 -10.00 100.00 205 1.42 52.50 -10.00 100.00 -10.00 100.00 210 1.10 54.54 -10.00 100.00 -10.00 100.00 215 1.38 56.35 -10.00 100.00 -10.00 100.00 220 0.00 59.59 -10.00 136.18 -10.00 129.55 225 0.00 61.98 -10.00 136.18 -10.00 129.55 230 0.00 64.55 -10.00 136.18 -10.00 129.55 235 0.00 67.27 -10.00 136.18 -10.00 129.55 240 0.00 70.11 -10.00 136.18 -10.00 129.55 245 0.00 73.06 -10.00 136.18 -10.00 129.55 250 0.00 76.10 -10.00 136.18 -10.00 129.55 255 0.00 79.20 -10.00 136.18 -10.00 129.55 260 0.00 82.35 -10.00 136.18 -10.00 129.55 265 0.00 85.54 -10.00 136.18 -10.00 129.55 270 0.00 88.74 -10.00 136.18 -10.00 129.55 275 1.11 92.00 -10.00 100.00 -10.00 100.00 280 1.10 95.28 -10.00 100.00 -10.00 100.00 285 2.71 98.81 -10.00 100.00 -10.00 100.00 290 3.95 102.41 -10.00 100.00 -10.00 100.00 295 3.90 105.75 -10.00 100.00 -10.00 100.00 300 4.70 109.31 -10.00 100.00 -10.00 100.00 305 4.08 112.29 -10.00 100.00 -10.00 100.00 310 3.68 115.19 -10.00 100.00 -10.00 100.00 315 2.82 117.64 -10.00 100.00 -10.00 100.00 320 3.56 120.83 -10.00 100.00 -10.00 100.00 325 3.98 123.70 -10.00 100.00 -10.00 100.00 330 4.70 126.64 -10.00 100.00 -10.00 100.00 335 5.17 129.21 -10.00 100.00 -10.00 100.00 340 6.28 132.09 -10.00 100.00 -10.00 100.00 345 8.32 134.28 -10.00 100.00 -10.00 100.00 350 8.67 130.26 -10.00 100.00 -10.00 100.00 355 8.99 126.08 -10.00 100.00 -10.00 100.00


Document Created: 2011-09-21 23:14:34
Document Modified: 2011-09-21 23:14:34
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