Attachment Exhibit A

This document pretains to SES-LIC-20120525-00480 for License on a Satellite Earth Station filing.

IBFS_SESLIC2012052500480_953097

                                           Exhibit A

                       Description of Application and Waiver Request

                ViaSat, Inc. (“ViaSat”) seeks blanket authority to operate 50,000 temporary-fixed
earth stations to communicate with the ViaSat-1, WildBlue-1 and Anik-F2 satellites, each of
which has been authorized by the Commission to serve the United States in the proposed
frequency ranges. The terminals will utilize the 28.35-29.1 GHz and 29.5-30.0 GHz (uplink)
bands and the 18.3-19.3 GHz and 19.7-20.2 GHz (downlink) bands on ViaSat-1 at the nominal
115º W.L. location, and the 29.5-30.0 GHz (uplink) band and the 19.7-20.2 GHz (downlink)
band on WildBlue-1 and Anik-F2 at the nominal 111º W.L. location.1

                These proposed temporary-fixed terminals will be a variation of the Ka band
terminals already authorizated to communicate with ViaSat-1, WildBlue-1 and Anik-F2. This
new antenna type is similar to ViaSat’s previously licensed Ka band blanket terminals, but has a
reflector with detachable side panels that allow the antenna to be stored in a compact case
suitable for rapid deployment by first responders, or other applications requiring easy transport
and faset setup. ViaSat currently holds a blanket license authorization under call sign E100143
(SES-LIC-20101217-01585) to operate a large number of user terminals in the 18.3-19.3 GHz,
19.7-20.2 GHz, 28.35-29.1 GHz and 29.5-30.0 GHz bands using the ViaSat-1 satellite.2 In
granting the ViaSat-1 Blanket License and the ViaSat-1 Authorization, the Commission granted
authority to operate on the 28.6-29.1 GHz band on a secondary allocation and granted a waiver
of the U.S. Table of Frequency Allocations to use the 18.8-19.3 GHz band for GSO FSS
downlink operations.3 In addition, the Commission permitted blanket licensing of earth stations
in the 28.6-29.1 GHz and 18.8-19.3 GHz bands in the ViaSat-1 Blanket License. The temporary
fixed antennas proposed in this application will operate on these same frequencies when
communicating with ViaSat-1, and thus, ViaSat requests the same waivers, to the extent
necessary. The bases for such waiver showings for this new terminal type are no different than
those already approved in the ViaSat-1 Authorization and the ViaSat-1 Blanket License. ViaSat
respectfully incorporates by reference those prior showings.4 ViaSat requests that the
Commission permit operations and blanket licensing in the 18.8-19.3 GHz band in this case.




1
        ViaSat’s affiliate, WB Holdings 1 LLC, is blanket licensed under call sign E050033 to
        operate a large number of user terminals in the 19.7-20.2 GHz and 29.5-30.0 GHz bands
        on WildBlue-1 and Anik-F2.
2
        See File Nos. SES-LIC-20101217-01585; SES-AMD-20110128-00074 (granted Oct. 20,
        2011) (“ViaSat-1 Blanket License”); See File Nos.SAT-LOA-20110722-00132, as
        amended (granted Oct. 14, 2011); SAT-LOI-20080107-00006, as amended (granted Aug.
        18, 2009) (“ViaSat-1 Authorization”).
3
        See id; see also 47 C.F.R. § 2.106, n.NG165.
4
        See File Nos. SES-LIC-20101217-01585; SAT-AMD-20080623-00131.


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Antenna Performance

                The antenna meets the performance requirements in Section 25.138(a), as
illustrated by the off-axis EIRP spectral density plots attached hereto as Exhibit C. In addition,
the power flux-density at the earth’s surface produced by emissions from each of the satellite
points of communication are within the -118 dBW/m2/MHz limit set forth in Section
25.138(a)(6). In addition, the proposed earth station terminal conforms to the antenna
performance standards in Section 25.209 in the receive frequency bands with few minor
exceptions, as demonstrated by the antenna gain patterns attached hereto as Exhibit B.
Consistent with Section 25.209(c)(1) and Section 25.138(e), ViaSat does not seek additional
protection from receive interference that is attributable to any shortfall in the receive antenna
pattern performance.

Radiation Hazard Analysis

                A radiation hazard analysis for the proposed antenna is attached hereto as
Exhibit D. As demonstrated by the results of the analysis, the maximum permissible exposure
limit (MPE) is met for protection of the General Population/Uncontrolled Exposures – 1
mW/cm2 averaged over a thirty minute period. The automatic shut-down capabilities described
in the analysis, coupled with the terminal’s use of uplink power control and non-continuous
operation, ensures that the general population will not be exposed to levels of electromagnetic
radiation that exceed the Commission’s limits.




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Document Created: 2012-05-24 18:52:01
Document Modified: 2012-05-24 18:52:01

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