Attachment CoverLetter

This document pretains to SAT-STA-20110426-00079 for Special Temporal Authority on a Satellite Space Stations filing.

IBFS_SATSTA2011042600079_886346

April 26, 2011 Ms. Marlene H. Dortch Secretary Federal Communications Commission 445 12th Street, S.W. Washington, D.C. 20554 Re: Request for Special Temporary Authority to Test Remote Terminal with Hagerstown, Maryland Hub E070139 Dear Ms. Dortch: Tachyon, Inc. (“Tachyon”) herein requests a grant of Special Temporary Authority (“STA”)1 for 30 days, from May 16, 2011 through June 15, 2011, to test a new 18” remote terminal communicating with an Intelsat-owned, U.S.-licensed hub -- call sign E070139 located in Hagerstown, Maryland -- in the frequency bands 11.7-12.2 GHz and 14.0-14.5 GHz. The remote terminal will communicate with Intelsat’s Horizons 2 satellite located at 74.05° W.L. With the acceptance of this request, Tachyon intends to test this VSAT network beginning May 2, 2011 for potential use as part of an existing mobile aeronautical service currently provided outside the United States to a U.S. Government customer. During the testing, the remote terminal will be located at Summit Airport in Middletown, Delaware. The antenna will be tested while mounted on the roof of a hanger, as well as while mounted on a stationary aircraft. In support of this request, Tachyon herein provides the attached technical information that demonstrates that the operation of the remote terminal will not cause harmful interference into any lawfully operating facility. The hub station, E070139, will operate in accordance with the coordinated parameters of its current license. In the extremely unlikely event that harmful interference should occur, Tachyon will take all reasonable steps to eliminate the interference. Grant of this STA request will enable Tachyon to test this new antenna to determine whether it may be incorporated into the existing U.S. Government service offering. As such, the grant of this STA is in the public interest. 1 Tachyon has filed this STA request, an FCC Form 159, a $175.00 filing fee and this supporting letter electronically via the International Bureau’s Filing System (“IBFS”).

Please direct any questions regarding this STA request to the undersigned at (619) 252- 4158. Respectfully submitted, Jeremy Guralnick VP Business Development cc: Paul Blais Frank Peace


Document Created: 0250-04-18 00:00:00
Document Modified: 0250-04-18 00:00:00
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