Attachment Exhibit C

This document pretains to SES-MOD-20100510-00580 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2010051000580_814498

                                                 Exhibit C

                                      Description of Application

          Pursuant to Section 25.117(c) of the Commission’s rules, 47 C.F.R. § 25.117(c),

SkyTerra Subsidiary LLC (“SkyTerra”) hereby requests authority to modify its earth

station license to reflect the pending change in orbital location of MSAT-2 (a.k.a. AMSC-

1).1 Pursuant to this earth station license, SkyTerra is authorized to communicate with

MSAT-2, which is located at 101.3°W.2 As stated in a recently filed application,

SkyTerra seeks to relocate MSAT-2 to 103.3°W to make room at 101.3°W for the

replacement satellite, SkyTerra 1.3 The earth station authorized under this license will

communicate with MSAT-2 throughout the drift from 101.3°W to 103.3°W and

afterwards for an estimated eight months, until SkyTerra 1 has been fully tested and

service is transitioned to the new satellite.4 Grant of the application will enable SkyTerra

to provide continuity of service to customers, which would serve the public interest.

          SkyTerra also requests a change in the regulatory status of the earth station

license from common carrier to non-common carrier to comport with the previously

approved change in the regulatory status of the MSAT-2 space segment from common

carrier to non-common carrier.5




1
    SkyTerra has provided in the Form 312 and accompanying exhibits only that information that is relevant
    to the requested modification of authorization or otherwise required by IBFS for electronic submission
    of the application.
2
    The earth station license in the IBFS database incorrectly references “AMC-1,” rather than “AMSC-1,”
    as a point of communication.
3
    See File No. SAT-MOD-20100412-00075. To the extent necessary, SkyTerra incorporates by reference
    the technical information, submitted in that proceeding, relevant to the relocation of MSAT-2.
4
    No additional coordination with terrestrial operations is required for feeder link operations of MSAT-2 at
    103.3°W. This location is within the orbital arc (101°W to 107°W) previously coordinated and
    authorized for this earth station, as reflected in the license.
5
    See Stamp Grant, File No. SAT-MOD-20041124-00213 (December 6, 2006).


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Document Created: 2010-05-05 18:02:54
Document Modified: 2010-05-05 18:02:54

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