01-11-10 Ex Parte -

Ex PARTE PRESENTATION NOTIFICATION LETTER submitted by SkyTerra Subsidiary LLC

Ex Parte Letter

2010-01-11

This document pretains to SES-MOD-20090813-00997 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2009081300997_793921

                                                  January 11, 2010

By Electronic Filing (IBFS)

Marlene H. Dortch
Secretary
Federal Communications Commission
455 12th Street, SW
Washington, DC 20554

          Re:      Notification of Ex Parte Presentation of SkyTerra Subsidiary LLC
                   Application for Modification of Space Station and Ancillary Terrestrial
                   Component Authority
                   FCC File Nos. SAT-MOD-20090813-00088
                                  SAT-MOD-20090813-00089
                                  SES-MOD-20090813-00997

Dear Ms. Dortch:

        On January 8, 2010, Thomas Tycz, on behalf of SkyTerra Subsidiary LLC (“SkyTerra”),
met with Robert Nelson, Kathyrn Medley, and Sankar Persaud of the International Bureau,
Satellite Division, with regard to the above-referenced application.1 The application seeks
authority to operate SkyTerra’s next-generation satellite system in the United States, including
its Ancillary Terrestrial Component, reusing certain frequencies currently assigned to two
Mexican satellites, under the terms of the outstanding 1996 multi-party coordination agreement,
subject to the condition that SkyTerra’s new reuse of such spectrum not cause harmful
interference to the provision of Mexican satellite service.

       As SkyTerra described in its application, its next-generation system will provide
affordable, nationwide, mobile broadband service to tens of millions of users. After several
years of unsuccessful attempts at informal coordination with Telecomm, the Mexican operator
(and successful coordination with all other affected operators), SkyTerra has been trying since
September 2008 to engage the Mexican administration and its operator in formal coordination.
Despite an enormous commitment of resources by the Commission and SkyTerra, those efforts

1
    See File Nos. SAT-MOD-20090813-00088, SAT-MOD-20090813-00089, SES-MOD-20090813-00997 (August
    13, 2009) (hereafter, the “Application”). The information provided in this letter is not new information, rather it
    is a summary of what SkyTerra already has provided in this proceeding.

                                                SkyTerra LP
                              10802 Parkridge Boulevard, Reston, VA 20191-4334
                                             T: +1 703 390 2700
                                            www.skyterra.com


Ms. Marlene H. Dortch
January 11, 2010
Page 2


so far have been unsuccessful. SkyTerra nevertheless remains committed to a comprehensive
coordination agreement with Telecomm and the Mexican administration for its next-generation
system.

        The January 8 meeting focused on the limits SkyTerra proposed for its operations to
insure that existing Mexican satellite operations would be unharmed. SkyTerra’s application
proposed limits that are below the co-channel interference threshold Telecomm agreed it could
accept when Mexico originally coordinated its operations, beginning in 1992 with information
the Mexican operator provided other operators and ending in 1996 in a successful multi-party
agreement that was based on that information.2 In other words, Telecomm and Mexico have
already agreed to these limits as part of a formal international frequency coordination.

         Mr. Tycz also reviewed in detail the information that SkyTerra presented in its
application, including the information that Telecomm provided to the other operators regarding
its link budgets and SkyTerra’s demonstration that its proposed operations will be well within the
limits required. The link budget was set originally to accommodate a variety of what the
Mexican operator stated were potential sources of inter-system and intra-system co-channel
interference, including adjacent satellite interference, inter-beam interference, and cross-
polarization interference. At this point, however, the entire co-channel interference budget can
be used to accommodate inter-system interference, because only one Mexican L-band satellite
remains operational, it operates with only one beam, and there is no cross-polarization. As such,
the C/I ratio used by Telecomm to establish its link budget easily can be maintained at the level
of inter-system interference SkyTerra has proposed.3

        Mr. Tycz emphasized that Telecomm’s prior coordination of a co-channel interference
threshold committed the Mexican administration and its operator to plan for and accept co-
channel interference below that threshold for the life of the Mexican system. Telecomm is not
now permitted to claim arbitrarily that SkyTerra’s proposed operations will cause harmful
interference when those proposed operations are below that threshold. Indeed, as Mr. Tycz
asserted, if the Commission were to agree now to Mexico’s unsubstantiated demand to change
the threshold for co-channel sharing, it would set a troubling precedent for this and other United
States coordination efforts. It would be particularly troubling at this stage in the negotiations,
with all the delay that the Commission and SkyTerra have experienced and with no legitimate
evidence of any need for a new co-channel interference threshold.

        SkyTerra also has demonstrated that, in fact, there is no engineering basis for concern
that the Mexican system might suffer harmful interference from SkyTerra’s proposed operations.
Mexico’s report on its field tests to simulate interference does not provide sufficient detail to
determine the reliability of the tests, but in any case the test results on their face actually serve to

2
    See Application, at pp. 8-9; see also Confidential Technical Appendix, at p. 3 (August 14, 2009).
3
    See Confidential Technical Appendix, p. 4 and Figure 2.


Ms. Marlene H. Dortch
January 11, 2010
Page 3


validate that the Mexican system has even more margin for interference than it indicated in the
exchange of information leading to the 1996 coordination agreement.4 In other words,
Telecomm’s tests on their face show that there will be no interference at the levels SkyTerra
proposes.

        During the meeting, there was also discussion of the 6% ∆T/T coordination threshold
contained in the International Radio Regulations. Mr. Tycz explained that 6% ∆T/T serves only
as a threshold for identifying the systems that may potentially need more detailed coordination
and in itself is not a limit on operations, specifically where, as here, there already is an existing
coordination agreement and where, as here, all evidence indicates that there is no risk of harmful
interference.5

         Moreover, SkyTerra emphasizes again that it is seeking limited authority – the ability to
reuse these frequencies on a non-harmful interference basis only for the life of Mexico’s existing
satellite. As it must, SkyTerra is prepared to accept the risk should there be any harmful
interference to Mexican service. The Commission has ample authority to require SkyTerra to
modify or cease operations.

         Limiting SkyTerra’s emissions far below what is permitted by the interference thresholds
in Mexico’s existing coordination agreements would be harmful to SkyTerra’s efforts to build
and deploy its next generation satellite and terrestrial system. While SkyTerra remains
committed to an overall coordination, there is no certainty when Mexico’s plans will allow that
coordination to proceed. Moreover, even if it is unlikely that SkyTerra will have sufficient
traffic in the next few years to reach the proposed limits, there is no certainty when Telecomm
will actually decommission its remaining satellite, regardless of how limited its capacity.

          In sum, SkyTerra stresses the following key points:

     •    Based on Mexico’s existing international coordination commitments for its satellite
          system and the absence of any showing that they do not remain valid, the Commission is
          fully entitled to and should authorize SkyTerra to operate within the limits proposed in its
          application.

     •    Support for SkyTerra’s position is critical to the pending overall coordination effort and
          to United States coordination efforts generally.

     •    Telecomm’s satellite services are fully protected in the unlikely event there is actual
          interference to Telecomm’s operations during the life of its remaining satellite, since
          SkyTerra’s reuse will be on a non-harmful interference basis.

4
    See Reply of SkyTerra, at pp. 7-8 (November 4, 2009).
5
    See Application, at p. 11, n.16.


Ms. Marlene H. Dortch
January 11, 2010
Page 4



       On this basis, we continue to urge the Commission to act expeditiously to grant the reuse
application. If you have any questions, please do not hesitate to contact us.

                                                    Very truly yours,

                                                           /s/

                                                    Gary M. Epstein

cc:    Roderick Porter
       Robert Nelson
       Kathyrn Medley
       Sankar Persaud



Document Created: 2010-01-11 14:11:25
Document Modified: 2010-01-11 14:11:25

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