Attachment Narrative

This document pretains to SES-STA-20150923-00616 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2015092300616_1104643

Exhibit A DESCRIPTION OF STA REQUEST I. DESCRIPTION OF STA REQUEST Inmarsat Mobile Networks, Inc. (“Inmarsat Mobile Networks”) hereby requests special temporary authority (“STA”) on a non-protected, non-interference basis to operate three earth station user terminal types each to be located in Lino Lakes, Minnesota; Victor, New York; Reston, Virginia; and Chantilly, Virginia (a total of 3 antenna units), to facilitate over-the-air testing of the Inmarsat Global Xpress Ka band network components using the Inmarsat 5 F2 (“I5 F2”) satellite located at 55º W.L. The earth station antennas are the Skyware Sky98, L3 Panther, and L3 Cheetah (“Antennas”). All operations pursuant to this STA would be at fixed locations and will be operated through the Lino Lakes Satellite Access Station authorized under call sign E120072. I5 F2 has been authorized for U.S. market access from the 55º W.L. orbital location and is authorized to communicate with the Lino Lakes Satellite Access Station.1 The user terminal operations will be closely monitored by the Inmarsat Network Operations Center (NOC) and various engineering teams associated with the testing to ensure compliance with the requested authority. . It is expected that the Antennas will be used starting September 28, 2015 for up to 30 days. The operational characteristics of each of the Antennas are listed below.2 Skyware Sky98 Antenna Diameter: 98 cm Transmit Frequencies: 29.5-30 GHz Transmit Polarisation: RHCP Maximum EIRP: 51.8 dBW RF Modulation: 8 APSK (max) Minimum Elevation for Transmission: 5 degrees Emission Designator: 7M00G1W Antenna Gain: 47.2 dBi Receive Frequencies: 19.7-20.2 GHz Receive Polarisation: LHCP Maximum Spacecraft EIRP: 54dBW RF Modulation: 16 APSK Azimuth Range: 360 degrees Emission Designator: 32M0G7W Antenna Gain: 43.8 dBi 1 See, Inmarsat Mobile Networks, Inc., Granted March 30, 2015, (Call Sign E120072; IBFS File No. SES-LIC- 20120426-00397) (“Lino Lakes Order”). 2 Although the L3 Cheetah model bears a similar name to an earth station listed in a previous Global Xpress earth station license application by Inmarsat, the model contemplated in this STA differs slightly and the operation characteristics are instead listed in the aforementioned table. 1

L3 Panther Antenna Diameter: 85 cm Transmit Frequencies: 29.5-30 GHz Transmit Polarisation: RHCP Maximum EIRP: 49.2 dBW RF Modulation: 8 APSK (max) Minimum Elevation for Transmission: 5 degrees Emission Designator: 7M00G1W Antenna Gain: 43.07 dBi Receive Frequencies: 19.7-20.2 GHz Receive Polarisation: LHCP Maximum Spacecraft EIRP: 54dBW RF Modulation: 16 APSK Azimuth Range: 360 degrees Emission Designator: 32M0G7W Antenna Gain: 39.8 dBi L3 Cheetah Antenna Diameter: 60 cm Transmit Frequencies: 29.5-30 GHz Transmit Polarisation: RHCP Maximum EIRP: 52.6 dBW RF Modulation: 8 APSK (max) Minimum Elevation for Transmission: 5 degrees Emission Designator: 7M00G1W Antenna Gain: 45.9 dBi Receive Frequencies: 19.7-20.2 GHz Receive Polarisation: LHCP Maximum Spacecraft EIRP: 54dBW RF Modulation: 16 APSK Azimuth Range: 180 degrees Emission Designator: 32M0G7W Antenna Gain: 42.5 dBi The latitude and longitude for the testing locations and 24 hour point of contact (POC) are listed below: Lino Lakes, MN Lat = 45.1322 N Long = 93.0959 W 24 hour POC: Kevin Baker (kevin.baker@inmarsat.com) +1-808-469-7104 Chantilly, VA Lat = 38.8922 N Long = 77.4441 W 24 hour POC: John Kim (john.kim@inmarsat.com) +1-202-368-2068 2

Reston, VA Lat = 38.9475 N Long = 77.3481 W 24 hour POC: GNOC support@inmarsatgov.com +1-703 673 9964 Victor, NY Lat = 43.0045 N Long = 77.4509 W 24 hour POC: Nathan Giordano (nathan.giordano@L-3.com) +1-585-742-9624 * * * * * Grant of the requested STA will serve the public interest, convenience and necessity because it will enable Inmarsat Mobile Networks to conduct essential testing of the Global Xpress network and the Inmarsat-5 F2 spacecraft, consistent with the parameters described herein using the identified Antennas, without creating any risk of harmful interference. Inmarsat Mobile Networks respectfully requests that the Commission grant STA beginning September 28, 2015 for a period of 30 days. 3


Document Created: 2015-09-23 13:05:21
Document Modified: 2015-09-23 13:05:21
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