Official U.S. government information about the
Global Positioning System (GPS) and related topics
Hearing on Impacts of the LightSquared Network on Federal Science Activities
House Committee on Science, Space and Technology
September 8, 2011
The hearing examined the concerns of federal science agencies due to potential GPS interference from the terrestrial broadband network planned by LightSquared Subsidiary LLC. The committee reviewed the results of recent testing on the impact of the LightSquared network on the GPS signal. In addition, the committee examined measures and costs necessary to implement and prioritize mitigation strategies at federal departments and agencies.
Learn more about LightSquared-GPS interferenceThe federal witnesses warned that LightSquared interference to GPS could disrupt a broad range of agency operations, especially those requiring high-precision equipment. Testing has shown that such equipment can fail under LightSquared's original and modified spectrum plans.
A LightSquared executive said his company is working to address these concerns and offered to help develop new filters to mitigate interference, even though it faults the GPS industry for producing receivers that look into LightSquared's spectrum.
Witnesses
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Mr. Anthony Russo
Director
National Coordination Office for Space-Based Positioning, Navigation, and Timing
View testimony
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Ms. Mary Glackin
Deputy Under Secretary for Operations
National Oceanic and Atmospheric Administration
U.S. Department of Commerce
View testimony -
Mr. Victor Sparrow
Director, Spectrum Policy & Planning Division
Human Exploration and Operations Mission Directorate
National Aeronautics and Space Administration
View testimony -
The Honorable Peter Appel
Administrator, Research and Innovative Technology Administration
U.S. Department of Transportation
View testimony -
Dr. David Applegate
Associate Director of Natural Hazards
U.S. Geological Survey
U.S. Department of the Interior
View testimony -
Mr. Jeffrey Carlisle
Executive Vice President, Regulatory Affairs and Public Policy
LightSquared Subsidiary LLC -
Dr. Scott Pace
Director, Space Policy Institute
George Washington University
Get more info at house.gov
Please note that GPS.gov only publishes the written testimony of federal officials. The testimony of other witnesses is available via the link above.
