Attachment Notification

Notification

LETTER submitted by Mobile Satellite Ventures Subsidiary LLC

Notification

2007-07-16

This document pretains to SES-RWL-20050211-00219 for Renewal on a Satellite Earth Station filing.

IBFS_SESRWL2005021100219_578407

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     MSV
     e Satellite Ventures LP
                                                   ORIGINAL
                                                July 16, 2007
      Via Hand Delivery
      Ms. Marlene H. Dortch
      Secretary
      Federal Communications Commission
      445 12th Street, SW.
      Washington, D.C. 20554

              Re:    Mobile Satellite Ventures Subsidiary LLC
                                                                                            RECEIVED
                     Notification of Inclined Orbit Operation for MSAT—1
                     £930124, £940374, £930367, E980179, and E990133                           JUL 1 7 2007
                                                                                              Satellite Dwigsion
      Dear Ms. Dortch:                                                                       International Bureau

             Mobile Satellite Ventures Subsidiary LLC ("MSV*"), the licensee of the above—referenced
      fixed and mobile earth station authorizations to communicate with MSAT—1,‘ hereby notifies the
      Commission that MSAT—1 commenced operation in inclined orbit on July 1, 2007. See 47
      C.FR. § 25.280. Attached hereto is a letter from Mobile Satellite Ventures (Canada) Inc., the
      operator of MSAT—1, providing the information required in Section 25.280 of the Commission‘s
      rules.

             Please contact the undersigned with any questions regarding this matter.

                                                  Very truly yours,


                                                      Wfl%fl                            /4
                                                  JeGhifer AFManner
                                                  Vice President, Regulatory Affairs
                                                  MOBILE SATELLITE VENTURES
                                                          SUBSIDIARY LLC
                                                  10802 Parkridge Boulevard
                                                  Reston, Virginia 20191
                                                  {(703) 390—2700

     ce:     Robert Nelson
             Karl Kensinger



     ‘ MSAT—1 is a foreign—licensed, geostationary orbit Mobile Satellite Service satellite located at
     106.5°W and authorized to provide service into the U.S.


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 Mobile Satellite Ventures (Canada) inc.




                                                     July 16, 2007
Via Electronic Mail
Jennifer A. Manner
Vice President, Regulatory Affairs
Mobile Satellite Ventures Subsidiary LLC
10802 Parkridge Boulevard
Reston, Virginia 20191

              Re: Inclined Orbit Operation of MSAT—1

Dear Ms. Manner:

              On behalf of Mobile Satellite Ventures (Canada) Inc. ("MSV Canada"), provided below
is the information required by Section 25.280(a) of the Commission‘s rules and an
acknowledgement of our understanding of the requirements of Section 25.280(b) of the
Commission‘s rules.

              Information required under Section 25.280(a) of the Commission‘s Rules:

              (1)    The operator‘s name:

                     Mobile Satellite Ventures (Canada) Inc.

              (2)    The date of commencement of inclined orbit operation:

                     July 1, 2007

              (3)    The initial inclination:

                     Approximately 0.05°

              (4)    The rate of change in inclination per year:

                     Approximately 0.9° per year

              (5)    The expected end—of—life of the satellite accounting for inclined orbit operation:

                     Beyond January 1, 2015

              Requirements specified in Section 25.280(b) of the Commission‘s rules:

              (1)    MSV Canada will periodically correct the satellite attitude to achieve a stationary
                     spacecraft antenna pattern on the surface of the Earth and centered on the
                     satellite‘s designated service area.


Mobile Satellite Ventures (Canada) Inc.                                     1601 Telesat Court, Oftawa, Ontaric K1B 5P4


(2)    MSV Canada will control all interference to adjacent satellites, as a result of
       operating in an inclined orbit, to levels not to exceed that which would be caused
       by the satellite network operating without an inclined orbit.

(3)    MSV Canada will not claim protection in excess of the protection that would be
       received by the satellite network operating without an inclined orbit.

(4)    MSV Canada will continue to maintain its satellite at its authorized longitude
       orbital location in the GSO satellite arc with the appropriate east—west station—
       keeping tolerance.

Please feel free to contact the undersigned with any questions regarding this matter.

                                      Very truly yours,

                                      EBsar— AAX——
                                      Bahman Azarbar
                                      Vice President, Regulatory Affairs
                                     Mobile Satellite Ventures (Canada) Inc.



Document Created: 2007-07-18 09:39:45
Document Modified: 2007-07-18 09:39:45

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