Aero Ex Parte Submis

SUPPLEMENT submitted by ViaSat, Inc.

Supplement 11-5-2012

2012-11-05

This document pretains to SES-LIC-20120427-00404 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012042700404_973742

                                                                555 Eleventh Street, N.W., Suite 1000
                                                                Washington, D.C. 20004-1304
                                                                Tel: +1.202.637.2200 Fax: +1.202.637.2201
                                                                www.lw.com

                                                                FIRM / AFFILIATE OFFICES
                                                                Abu Dhabi       Moscow
                                                                Barcelona       Munich
                                                                Beijing         New Jersey
                                                                Boston          New York
                                                                Brussels        Orange County
November 5, 2012                                                Chicago         Paris
                                                                Doha            Riyadh
                                                                Dubai           Rome
                                                                Frankfurt       San Diego
VIA ELECTRONIC FILING                                           Hamburg         San Francisco
                                                                Hong Kong       Shanghai
                                                                Houston         Silicon Valley
Ms. Marlene H. Dortch
                                                                London          Singapore
Secretary                                                       Los Angeles     Tokyo
Federal Communications Commission                               Madrid          Washington, D.C.
445 Twelfth Street, S.W.                                        Milan

Washington, D.C. 20554



               Re:    Submission of Ex Parte Presentation; IBFS File Nos. SES-LIC-20120427-
                      00404; SES-STA-20120815-00751, Call Sign E120075

Dear Ms. Dortch:

        ViaSat, Inc. (“ViaSat”) files this ex parte submission to supplement the record in these
proceedings. As explained in ViaSat’s Supplemental Submission in this proceeding on July 20,
2012, ViaSat believes that the operation of the aeronautical terminals in the Ka band should be
treated as an application of the FSS across the entire portion of the Ka band that has been
authorized for use by GSO FSS spacecraft.1 In this respect, it is important to recognize that the
existing primary allocations for the MSS in the Ka band are quite limited, and cover only 100
MHz in Regions 1 and 3 (29.9-30.0 GHz and 20.1-20.2 GHz), and only 500 MHz in Region 2
(29.5-30.0 GHz and 19.7-20.2 GHz).

         In contrast, high-capacity spacecraft such as ViaSat-1 rely on access to a full 1500 MHz
of spectrum in order to serve its coverage area. In particular, ViaSat-1 achieves its
unprecedented capacity throughout its coverage area by employing many small spot beams and a
frequency reuse plan that requires geographic separation among co-channel spot beams. As a
result, the band segments allocated for MSS are not used in adjacent spot beams. This means
that the connection for an aircraft that is flying across the United States will have to be handed
off from one spot beam to another, and in the case on many flights, will require use of a portion
of the Ka band that is allocated only for FSS.

       Stated another way, operation in the 28.35-29.1 GHz and 18.3-19.3 GHz band segments
on ViaSat-1, which are allocated only for FSS, is essential to avoid gaps in coverage. This


1
        ViaSat, Inc. Supplemental Submission, File No. SES-LIC-20120427-00404, Call Sign
        E120075 (filed July 20, 2012) (“Supplemental Submission”).


DC\2338865.1


Ms. Marlene H. Dortch
November 5, 2012
Page 2




concept is illustrated in the attached map, which shows the spot beams2 on ViaSat-1 that do not
utilize the 19.7-20.2 GHz and 29.5-30.0 GHz band segments.

          Please contact the undersigned if you have any questions regarding this submission.

                                                Respectfully yours,

                                                   /s/

                                                John P. Janka
                                                Elizabeth R. Park


Enclosures

cc:       Robert Nelson
          Andrea Kelly
          Stephen Duall
          William Bell
          Howard Griboff
          Paul Blais
          Joseph Hill
          Byung K. Yi
          David Keir, Counsel to Row 44, Inc.




2
          Coverage for -4 dB contour depicted for each beam.


DC\2338865.1





Document Created: 2012-11-05 10:23:14
Document Modified: 2012-11-05 10:23:14

© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC