Attachment A

This document pretains to SES-MOD-20110505-00556 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2011050500556_887965

                                           Attachment A

                                   Description of Modification

               WB Holdings 1, LLC (“WildBlue”) files this application to modify its current
authorization to (1) add the 30 MBd symbol rate for all three associated antennas facilities
included in the license; and (2) change the polarization on the GES-2-B antenna to Left and
Right Circular polarization. The Form 312, Schedule B includes only the Particulars of
Operations that are being added or changed. All other licensed parameters, including the
maximum EIRP density, will remain the same.

                The addition of an increased maximum symbol rate of 30 MBd using an emission
designation of 30M0G7W is associated with a higher maximum EIRP/Carrier. However, the
maximum EIRP density of the antenna will remain unchanged. Therefore, there is no increase in
the potential for interference, and thus, no coordination with adjacent satellites is required for the
proposed modification.

                The GES-2-B antenna is a spare antenna that serves as a back-up for the two other
antennas at this site. GES-2-A transmits in left-hand circular polarization, and GES-2-C
transmits in right-hand circular polarization. Thus, the back-up operations on GES-2-B must
employ both right- and left- hand circular polarization. The correction to the polarization of the
existing carriers on the GES-2-B antenna at the licensed facility reflects the actual parameters
under which this antenna operates. WildBlue discovered this oversight in the course of
preparing the application for modification of the new emission designator. Because the GES-2-B
antenna operates at a lower maximum EIRP and lower maximum EIRP density than the other
antennas licensed at this site, frequency coordination is not required. The modification to the
polarization of the GES-2-B carriers is a minor modification in accordance with Section 25.118
of the Commission’s rules.




DC\1447721.1



Document Created: 2011-05-04 14:52:59
Document Modified: 2011-05-04 14:52:59

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