Attachment Supplement

This document pretains to SES-MFS-20060615-01010 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2006061501010_529716

& LEVENTHAL SENTER & LERMAN PLLC September 22, 2006 Sremen D. Baguce Emt gona166702 seauch@ts.taw.cont orect rax gona29—4026 BY HAND DELIVERY Marlene H. Dortch Secretary Federal Communications Commission 445 Twelfth Street, S.W. Room TW—B204 Washington, D.C. 20554 Re: Application of Lockheed Martin Corporation for Modification of Earth Station License (Call Sign E970322, File No. SES—MFS—20060615—01010) Dear Ms. Dortch: Lockheed Martin Corporation ("Lockheed Martin®), by its attorneys and pursuant to Section 25.111 of the Commission‘s Rules, 47 C.F.R. § 25.111, hereby provides information regarding its above—referenced application for a modification of its license for a Clarksburg, Maryland earth station in response to a request from the International Bureau‘s System Analysis Branch. In its application, Lockheed Martin seeks to continue to include the Inmarsat—3 F4 satellite, formerly located at 54° W.L., as a point of communication for the Clarksburg, MD earth station following the satellite‘s relocation to the 142° W.L. orbital location. In a recent inquiry, Lockheed Martin was asked by the Commission whetherthe earth station uses the satellite‘s regional beams, global beams, or both. The answeris as follows: For radionavigation—satellite service in the 1559—1610 MHz band, the Inmarsat 3 F4 satellite‘s L1 Nav transponder usesits own antenna on the downlink, andit is a global beam. The feederlink is C—band, and for all Inmarsat—3 services the beam is global. 2000 i STREET ASHINGTON, DC 20006—1809 TELEPHONE 2024 2022037783 w is—tawcom

& Marlene H. Dortch September 22, 2006 Page 2 Please address any further inquiries regarding this application or the foregoing response to the undersigned. Attorngy for Lockheed Martin Corporation cc: Scott Kotler (by e—mail)


Document Created: 2006-09-22 15:27:15
Document Modified: 2006-09-22 15:27:15
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