Response to Question 7

0084-EX-PL-2004 Text Documents

Mobile Satellite Ventures Subsidiary LLC

2004-04-20ELS_65705

                                    Response to Question 7

        Mobile Satellite Ventures Subsidiary LLC (MSV) is licensed to operate a Mobile
Satellite Service (MSS) satellite (AMSC-1) in the L-band at 101W. MSV also holds blanket
mobile earth terminal (MET) licenses authorizing access to its satellite. MSV seeks an
experimental license to test signal processing algorithms used to mitigate co-channel
interference. MSV received an experimental STA for this experiment on January 5, 2004 (Call
Sign WB9XVQ; File No. 0424-EX-ST-2003). On this date, MSV has sought an extension of
this STA (File No. 0244-EX-ST-2004).

        This experiment will entail use of a BPSK-modulated L-band carrier signal that will be
transmitted over MSVs AMSC-1 satellite from a ground station in Reston, VA. The data rate
and EIRP of this carrier does not fall within the technical parameters authorized under MSV’s
existing blanket MET licenses. MSV is requesting only to conduct its test on frequencies it has
already coordinated for its satellite system through the international L-band frequency
coordination process.

       The purpose of this experiment is to test signal processing algorithms used to mitigate co-
channel interference over the AMSC-1 satellite from a ground station in Reston, VA.



Document Created: 2004-04-20 17:37:09
Document Modified: 2004-04-20 17:37:09

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