Narrative

0577-EX-ST-2019 Text Documents

XTAR LLC

2019-04-04ELS_226889

                                                            43777 Central Station Drive, Suite 360, Ashburn, Virginia 20147
                                                                                                571.281.3570  XTAR.COM



STA Request - Narrative
STA Confirmation Number: EL653090
STA File Number:        0577-EX-ST-2019
Date of Submission:     April 1, 2019




Introduction

XTAR requests a Special Temporary Authority (STA), beginning 16 Apr 2019, to operate an X-band
satellite communications link in the X-band (7.25-8.4 GHz) frequency range to support RDT&E of a WGS-
compatible, remotely-piloted vehicle. This vehicle, once initial benchtesting is completed in April 2019,
will be used in WGS-XTAR handoff tests this summer, to be scheduled with US Air Force Space and
Missiles Systems Center.

A STA is specifically requested due to the need for pre-handoff benchtesting of the vehicle's onboard
systems through the commercial X-band SATCOM link, to be provided by XTAR. Benchtesting is
scheduled to begin on 16 April to meet summer 2019 WGS-XTAR handoff testing timelines, and will
occur periodically over the next 6 months. An extension will be requested if needed.

Due to pre-launch international coordination agreements, XTAR does not cause interference with the
DoD's Wideband Global SATCOM (WGS) constellation.

POC: Lt Col Gary Thompson, USAF
Chief, Future Technologies Branch, SMC
(310) 653-9748
gary.thompson.17@us.af.mil

Network Topology

If approved, XTAR will establish a 2 x 4 Mbps TDM/TDMA circuit between a remote terminal located in
Fredericksburg, VA and a commercial teleport located in Hamilton, Ontario, using the XTAR-LANT North
America (C7) beam as depicted in Figure 1, below. Modem to be utilized is an IDirect Evolution 850.
More detailed specifications for this circuit are provided in STA request.




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XTAR Proprietary and Confidential


                                                               43777 Central Station Drive, Suite 360, Ashburn, Virginia 20147
                                                                                                   571.281.3570  XTAR.COM




                                   Figure 1 - XTAR Constellation Footprint

About XTAR, LLC


XTAR, LLC is a U.S.-owned satellite operator founded in 2001 entirely on private capital and with the
mission of providing the U.S. Government user with satellite services on military X-band frequencies.
Controlling interest in XTAR is held by Loral Space and Communications (NY).

Today, XTAR operates two on-orbit GEO payloads, both in X-band frequencies and amounting to 1.44
GHz of fully WGS-compatible space segment capacity:

  o   XTAR-EUR: 29.0° E.L.
  o   XTAR-LANT: 30.0° W.L.

*XTAR is presently in the design phase of its new constellation of X- and Ka-band satellites, planned for
launch in 2023/2024. XTAR intends to provide station kept capacity at 29E and 30W until the current
satellites are replaced.


For More Information Please Contact:

Todd C. Dudley
Director, Navy and Maritime Programs
Phone: +1 (571) 281-3572
Email: tdudley@xtar.com
www.xtar.com




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XTAR Proprietary and Confidential



Document Created: 2019-04-02 14:15:19
Document Modified: 2019-04-02 14:15:19

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