Cover Letter - CapRo

EXHIBIT submitted by CapRock Communications, Inc.

Additional Points of Clarification

2009-08-25

This document pretains to SES-MFS-20090811-00988 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2009081100988_735084

                                               August 25, 2009
Kathyrn Medley
System Analysis Branch
Satellite Division, International Bureau
Federal Communications Commission
445 12th Street SW, Washington, DC 20554

       Re:     Modification of ESV License – Additional information

CapRock Communications, Inc. (“CapRock”) wishes to include the following additional
information to application SES-MFS-20090811-00988 (E060157) to modify its existing Earth
Stations on Vessels (ESV) license. The modification requests, to add a 9m Vertex extended Ku-
band antenna operated by Telesat Network Services, Inc. (“Telesat”) as an additional hub to
CapRock’s network (see diagram on Exhibit A). CapRock states that:

   •   CapRock wishes to use Telesat’s satellites only on the range of frequencies requested by
       CapRock. This is pursuant to an agreement between CapRock and Telesat whereby
       CapRock is solely responsible for operation and management of these frequencies.

   •   CapRock, and not Telesat, will be the network operator and will be entirely responsible
       for compliance with all Federal Communications Commission’s (“Commission”)
       requirements contained in Sections 25.222 and 25.271 of the regulations. This is to
       include: providing 24X7 call center coverage, ESV location data collection and retention,
       and automatic shutdown of the ESVs. Furthermore, CapRock will be the only party
       capable of managing the network with appropriate authority to terminate transmissions if
       and when the Commission requests to do so.

   •   CapRock seeks to add Telesat’s 9m antenna to CapRock’s ESV network because
       CapRock does not currently have an antenna available that is capable of accessing Telstar
       11N in the extended Ku-band (satellite operated by Telesat). Using’s Telesat’s 9m
       antenna will eliminate the need to construct a new CapRock antenna, thereby reducing
       the administrative burden on the Commission and the NTIA. In other words, granting of
       the application at issue will eliminate the need to go through coordination requirements
       with the two agencies. The 9m Telesat antenna is already coordinated. Consequently,
       CapRock will operate within the technical parameters that Telesat has already
       coordinated.

   •   CapRock understands that if CapRock were to cease providing service over Telesat’s 9m
       antenna, it will relinquish control of the frequencies and turn them back to Telesat for
       assignment to another one of Telesat’s customers.

                                               Sincerely,

                                               /s/ Raul Magallanes
                                               Raul Magallanes, Counsel to CapRock


   Exhibit A
Network Diagram



Document Created: 2009-08-25 14:01:15
Document Modified: 2009-08-25 14:01:15

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