Attachment Exhibit B

This document pretains to SES-MFS-20150318-00164 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2015031800164_1080552

Exhibit B SES Coordination Certification Letter

Federal Communications Commission International Bureau 445 12th Street, S.W. Washington, D.C. 20554 March 17, 2015 Re: Engineering Certification Concerning AMC-2, AMC-9, SES-1 & SES-6 To Whom It May Concern: This letter certifies that SES is aware that Row 44, Inc. ("Row 44") is planning to seek a modification ("Modification Application·) of its blanket authorization from the Federal Communications Commission ("FCC") to operate technically identical Ku-band SES Americom, Inc. 1129 20th St. N\N transmit/receive Earth Stations Aboard Aircraft ("ESAA") under Call Sign E0801 00. SES Suite 1000 understands that Row 44 will be filing the Modification Application pursuant to the current Washington, DC 20036 ESAA Rules, including Section 25.227, and that it will propose an increase in EIRP in USA some cases, addition of new emissions and frequencies, and changes in maximum skew Tel. +1 202 478 7100 Fax +1 202 354 4656 angle in order to improve system capacity on North American routes. www.ses.com SES notes that the proposed operations of the Row 44 ESAA terminals at the off- axis EIRP density levels and other operating parameters provided to SES and reflected in the Technical Annex (Exhibit A) to be submitted with Row 44's Modification Application comply with the Section 25.227(a) off-axis EIRP density mask in the plane of the geostationary satellite orbit ("GSO") and therefore no further coordination with GSO operators is required for these operations on AMC-9 at 83° W.L. or SES-1 at 101 ° W.L. , which are currently included as points of communication in the Row 44 license, as well as on AMC-2 at 80.85° W.L. or SES-6 at 40.5° W.L., which Row 44 seeks to add via its proposed modification. SES also acknowledges that the proposed operation of the Row 44 terminals has the potential to create harmful interference to satellite networks adjacent to these satellites that may be unacceptable. If the FCC authorizes the modified operation that Row 44 proposes, SES will include the power density levels specified by Row 44 in all future satellite network coordination agreements it completes with other operators with respect to these satellites, and Row 44 will comply with all such coordination agreements reached by SES. Sincerely, ( Kimberly M. Baum Vice President, Spectrum Management and Development Americas SES Americom, Inc.


Document Created: 2015-03-17 16:11:14
Document Modified: 2015-03-17 16:11:14
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