Attachment Exhibit C

This document pretains to SES-LIC-20100412-00441 for License on a Satellite Earth Station filing.

IBFS_SESLIC2010041200441_810295

                                                 Exhibit C

                                        Application Description

          SkyTerra Subsidiary LLC (“SkyTerra”) hereby seeks authority to construct and

operate four technically identical, remote transmit/receive earth stations at the locations

specified in Table 1 below, as part of SkyTerra’s satellite carrier monitoring system

(“SCMS”). The earth stations will be operated in conjunction with a hub station, located

in Ottawa, Ontario and operating under an Industry Canada authorization, and will be

used to monitor:

              •    the signal levels of SkyTerra’s next-generation satellites, SkyTerra 1 and
                   SkyTerra 2,1 and current-generation satellites, MSAT-1 and MSAT-2; and

              •    the performance of the link from the remote station to the hub station (i.e.
                   in the L-band to Ku-band direction).2

Specifically, the remote stations will receive L-band transmissions from the satellites and

relay measurement information via an Internet connection to the hub station for analysis,

and transmit a modulated L-band signal to be received at the hub station in order to

characterize the variation of the L-band signal transmitted through the satellite.




1
    The space segment of the next-generation system will include SkyTerra 2, which is authorized by
    Industry Canada. SkyTerra does not in this application seek Commission authority to access SkyTerra 2
2
    Although MSAT-1 is foreign satellite authorized by Industry Canada, SkyTerra believes that its response
    of “No” to Question 42a (i.e. whether the applicant intends to use a non-U.S. licensed satellite to provide
    service in the United States) is appropriate and correct because SkyTerra in this application seeks only to
    provide monitoring functions with MSAT-1 and will not provide service from MSAT-1 using the SCMS
    earth stations. In any event, SkyTerra submits that no additional information is required in this
    application to communicate with MSAT-1. The information normally required under 47 C.F.R. §
    25.137 and in response to Question 42 for foreign-licensed satellites has already been provided to and
    approved by the Commission in prior applications, and SkyTerra incorporates that information by
    reference. See, e.g., Applications of SatCOM Systems, Inc., et al., 14 FCC Rcd 20798 (1999); see also In
    the Matter of Motient Services Inc. and TMI Communications and Company, LP, Assignors, and Mobile
    Satellite Ventures Subsidiary LLC, Assignee, 16 FCC Rcd 20469 (2001); In the Matter of Motient
    Corporation and Subsidiaries, Transferors, and SkyTerra Communications, Inc., Transferee, 21 FCC
    Rcd 10198 (2006).


          The SCMS earth stations will not provide any end-user communications

functionality. SkyTerra’s proposed use of its licensed and coordinated L-band spectrum

is permissible under ITU Radio Regulations and the FCC’s rules regarding space

operations service.3 No coordination with terrestrial operators is required.

          Table 1. Location of SCMS Earth Stations

SCMS #          Location                  Site Address                      Lat. (N)          Long. (W)

1               Harlingen, TX             21091 FM 507                      26.252914°        97.660847°

2               Anchorage, AK             3877 University Drive4            61.190553°        149.808281°

3               Eureka, CA                7246 Humboldt Hill Rd             40.716368°        124.203549°

4               Reston, VA                10802 Parkridge Blvd              38.944928°        77.319147°


          The contact information for the hub station, which serves as the primary control

point for each of the remote stations, is as follows:5

          1601 Telesat Court
          Ottawa, Ontario, Canada, K1B 1B9
          Tel: 1-800-216-6720
          Fax: 1-800-455-6543




3
    See, e.g., 47 C.F.R. §§ 2.1(c) (space operation functions, such as space tracking, space telemetry, and
    space telecommand, “will normally be provided within the service in which the space station is
    operating”), 25.201 (same); see also Stamp Grant, File Nos. SES-LIC-20080206-00131 to 132 (granted
    October 27, 2008) (granting fixed earth station applications to use L-band MSS frequencies for precision
    beam pointing corrections); Stamp Grant, File No. SES-LIC-20080212-00153 (granted April 14, 2008)
    (granting fixed earth station application to use S-band MSS frequencies for space operations service).
4
    The antenna will be mounted approximately halfway up an existing tower (ASR # 1007419).
5
    SkyTerra will also maintain control point capabilities in the United States, including at SkyTerra’s
    facility located at 10802 Parkridge Boulevard, Reston, VA 20191; Tel: 1-877-678-2920; Fax: 1-703-
    390-2770.

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                                 Technical Certification

        I, Richard Evans, Principal Engineer, SkyTerra Subsidiary LLC, certify under

penalty of perjury that:

        I am the technically qualified person with overall responsibility for preparation of

the technical information contained in this application. I am familiar with the

requirements of Part 25 of the Commission’s rules, and the information contained in the

application is true and correct to the best of my knowledge and belief.

                                                     /s/
                                              Richard Evans

Dated: April 12, 2010




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Document Created: 2010-04-09 18:08:47
Document Modified: 2010-04-09 18:08:47

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