Attachment Response

Response

LETTER submitted by Horizon Mobile Communications, Inc.

Response from applicant to FCC's March 27, 2007 letter

2007-04-26

This document pretains to SES-STA-20070112-00112 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2007011200112_563322

Lampert & O’Connor, P.C. 1776 K Street NW Suite 700 Washington, DC 20006 E. Ashton Johnston Tel 202/887-6230 johnston@l-olaw.com Fax 202/887-6231 April 26, 2007 Via Electronic Mail Scott A. Kotler Chief, Systems Analysis Branch Satellite Division International Bureau Federal Communications Commission Washington, DC 20554 Re: Call Sign E070006 File No. SES-LFS-20070109-00042 File No. SES-STA-20070112-00112 Horizon Mobile Communications, Inc. Dear Mr. Kotler: This letter responds to your letter of March 27, 2007, concerning the above-referenced earth station applications filed by Horizon Mobile Communications, Inc. (“Horizon”) on FCC Form 312 and accompanying Schedule B. Attached please find courtesy copies of the application amendments filed today electronically through the International Bureau Electronic Filing System (File Nos. SES-AMD-INTR2007-00960 and SES-STA-INTR2007-00961). For your reference, in response to your inquiry, with respect to Item E17. of Schedule B, Horizon has answered “Yes.” Horizon has also provided information about its U.S. headquarters in response to Items E61. – E68. and attached an explanation of the manner in which the METs are controlled (Revised Exhibit III, P. 13). With respect to the safety and distress communications frequencies, through attachment of a new Exhibit IV to Item E24., in Item E43/44. of Schedule B Horizon has excluded the frequencies 1544 – 1545 MHz, and in Item E52/53., Horizon has excluded the frequencies 1645.5 – 1646.5 MHz. (Exhibit IV is referenced in Item E24 because that is one of the few Schedule B blocks allowing an attachment and the electronic form would not allow the exclusion to be included in the boxes for Items E43/44. and E52/53.) Finally, Horizon has clarified the modulation information included in Item E50. of Schedule B to reflect the specific type of modulation associated with each type of BGAN MET for each of the carriers. (The responses to the three questions in your letter are also all briefly noted in the revised response to Item 43 of FCC Form 312 included in the amended applications.)

Lampert & O’Connor, P.C. Horizon Mobile Communications, Inc. Call Sign E070006 April 26, 2007 Page 2 Should you have any further questions about these applications, please contact the undersigned. Very truly yours, E. Ashton Johnston CC: Electronic Mail Stephen Duall stephan.duall@fcc.gov Regular Mail David S. Konczal, Esq. Pillsbury Winthrop Shaw Pittman, LLP 2300 N Street NW Washington, DC 20037-1128


Document Created: 2007-04-26 18:13:14
Document Modified: 2007-04-26 18:13:14
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