Pleading to Replace

LETTER submitted by ViaSat, Inc.

Letter

2016-01-19

This document pretains to SES-MOD-20151203-00909 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2015120300909_1123208

445 12"" Street SW Washington, DC 20554 January 19, 2016 Dear Mr. Paul Blais, Regarding our Application Submission ID: 1B2015002353, (add MT2220 Antenna) ViaSat, Inc. is requesting to replace the current RADHAZ analysis with the attached new RADHAZ analysis. On December 3, 2015, ViaSat requested to add an additional antenna to License Number E130033. We seek blanket authority to operate up to 100,000 electrically identical satellite mobile earth terminals ("METs") to communicate with the SkyTerra—1 satellite, utilizing L—Band frequencies at 1525—1559 MHz and 1626.5—1660.5, but excluding the 1544—1545 MHz and 1645.5—1646.5 MHz bands, which are reserved for safety and distress communications services. SkyTerra—1 is operated by LightSquared Subsidiary LLC (*LightSquared"), and is authorized to use these bands to serve the United States. ViaSat is a leading provider of innovative satellite broadband services, and a leading manufacturer of innovative satellite communication products. The MT2220/Explore 122 is an alternate construction of the FCC licensed AT2220 aviation terminal. Both terminals utilize same antenna assembly and modem assembly. The MT2220/Explore 122 is packaged slightly different from the AT2220 to achieve lower cost point suitable for land mobile platforms. In the RADHAZ analysis, an error in the linear Gain of the antenna was discovered. The gain has been corrected and the analysis updated in the new RADHAZ document. Sincerely, (l_ 6¢ Af~ Chris Hofer Director, Regulatory Affairs ViaSat Inc. 6155 EL. CAMINOREAL CARLSBAD, CA 92009 | TEL 760.476,2200 FAX 760.929.3941 | WWW.VIASAT.COM


Document Created: 2016-01-19 15:06:48
Document Modified: 2016-01-19 15:06:48
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