Attachment LightSquared - Spada

This document pretains to SAT-MOD-20101118-00239 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2010111800239_867563

_ /; : 7 J W}vzf}a/; wA C fijc‘* af tm xo / January 13, 2011 Received & Inspected The Honorable Julius Genachowski Chairman, Federal Communication Commission Room 8—B201 JAN 2 O 20“ 445 12th Street, SW FCC Ma" Room Washington, DC 20554 Subject: FCC File No. SAT—Mod—20101118—00239, LightSquared Subsidiary LLC Request for Modification of Its Authority for an Ancillary Terrestrial Component Dear Mr. Genachowski: We are deeply concerned that the proposal by LightSquared referenced above will interfere with GPS receiver operation. It is imperative that the GPS national utility remain free of impediments to operation for more than 75 million North American GPS users. This is not simply a "turf war" over spectrum allocation. It is a public safety issue that would threaten the national transportation grid, national financial system, national security, and virtually everyone in the United States, ;he LightSquared proposal will result in an unreliable GPS signal reception with the following effects: e Inability of emergency responders to effectively answer calls e Loss of pilots‘ primary means of navigation during a final approach e Disruption of training exercises for military service members who routinely use commercial GPS systems e Loss of the precise timing provided by GPS which is essential for operation of the financial system, power grid network synchronization, and cellular telephone system synchronization and cost accounting Furthermore, the U.S. GPS constellation is currently undergoing an $8 billion upgrade. Approval of the LightSquared proposal without adequate testing will result in a poor return on this huge taxpayer investment. We urge the FCC to conduct technical interference analysis BEFORE granting a waiver to effectively allow a reallocation of spectrum use from mobile satellite space service to terrestrial wireless service that is adjacent to the band where GPS operates. Further, we urge the FCC to consider this request from LightSquared under the Notice of Proposed Rule—Making process initiated in ET Docket No. 10—142 to ensure adequate opportunity for public comment. Mw""“ / & 3’9 & L "¥a Tom Spadafora GPS Product Owner CC: Commissioner Michael J. Copps Commissioner Robert M. McDowell Commissioner Mignon L. Clyburn Commissioner Meredith A. Baker


Document Created: 2019-04-17 23:36:42
Document Modified: 2019-04-17 23:36:42
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