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LightSquared Hearings Reveal Concerns

Could Jeopardize GPS

LightSquared Hearings Reveal Concerns Significant concerns about LightSquared's proposed open wireless broadband network that would operate near the frequency band used by the Air Force's Global Positioning System (GPS) were discussed at a House Science, Space and Technology Committee hearing on Sept. 8.

GPS users and manufacturers have voiced concern that LightSquared's network would harmfully interfere with the GPS signal, a concern that is supported by recent tests. Rep. Ralph Hall (R-TX), chairman of the committee, said the president's goal of increasing the United States' broadband access was commendable, but noted "it should not be accomplished by destroying existing [GPS] systems and applications." Rep. Eddie Bernice Johnson (D-TX), ranking member of the committee, said she hoped there was a technical solution that would allow LightSquared to work in concert with GPS, because "the U.S. needs more broadband and the jobs it will create."

Witnesses who testified comprised:

  • Anthony Russo, director, National Coordination Office for Space-Based Positioning, Navigation, and Timing
  • Mary Glackin, deputy under secretary, National Oceanic and Atmospheric Administration (NOAA)
  • Victor Sparrow, director, Spectrum Policy and Planning Division, NASA
  • Peter Appel, administrator, Research and Innovative Technology Administration, Department of Transportation (DOT)
  • Dr. David Applegate, associate director - natural hazards, U.S. Geological Survey
  • Jeffrey Carlisle, executive vice president - regulatory affairs and public policy, LightSquared
  • Dr. Scott Pace, director, Space Policy Institute, George Washington University

Sparrow said the impact from LightSquared's proposed network on NASA's GPS-dependent systems "would be substantial." Carlisle said LightSquared would address the interference issue by taking four steps, which he said would resolve interference issues with "99 percent of the [GPS] receivers currently used."

The House Armed Services Subcommittee on Strategic Forces held a hearing on Sept. 15 entitled "Sustaining GPS for National Security." Rep. Michael Turner (R-OH), chairman of the subcommittee, said the "national security consequences of the LightSquared network are significant," and he "feared the Department of Defense's training activities in the United States would come to an end" if the "FCC gives LightSquared the final go ahead to build out its network." Rep. Loretta Sanchez (R-CA), ranking member of the subcommittee, said it was important to "understand what is at stake and consider a way forward that will safeguard national security."

Witnesses who testified comprised:

  • General William Shelton, commander, U.S. Air Force Space Command
  • Teresa Takai, chief information officer, U.S. Department of Defense (DoD)
  • Karl Nebbia, associate administrator, Office of Spectrum Management, National Telecommunications and Information Administration, U.S. Department of Commerce (DOC)
  • Anthony Russo, director, National Coordination Office for Space-Based Positioning, Navigation, and Timing
  • Julius Knapp, deputy chief, Office of Engineering Technology, Federal Communications Commission (FCC)

General Shelton said "based on the test results and analysis to date, the LightSquared network would effectively jam vital GPS receivers, and to the Department of Defense's knowledge thus far," there were "no mitigation options that would be effective in eliminating interference to essential GPS services in the United States." Knapp said the FCC would "not authorize LightSquared to begin commercial service if its operation would cause harmful interference to GPS." He assured the subcommittee that the "FCC would never take any action that would threaten the safety of United States' citizens."

 

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