Air Force Adds Navigation Data to Modernized Civil GPS Signals

On April 28, 2014, the Air Force began broadcasting civil navigation (CNAV) messages on all operational GPS satellites capable of transmitting the L2C and L5 signals. L2C and L5 are the first of several new civil capabilities being added to

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First GPS Transmission at L5 Frequency

In April 2009, the Air Force announced the successful activation of the experimental L5 transmitter on the GPS IIR-20(M) satellite. This was an important step in securing the 1176.45 MHz frequency for use by GPS under ITU rules. Read Air

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Public Notice on Continued Support for Semi-Codeless GPS Access Through 2020

On September 23, 2008, the Department of Defense issued a final notice committing to continue supporting codeless/semi-codeless access to the military GPS P(Y) code signals through December 31, 2020. View notice at federalregister.gov The Department of Commerce played a key

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GPS World Interview on Semi-Codeless GPS Transition Plan

Thumbnail of GPS World article

The July 2008 edition of GPS World magazine features an interview with Jason Kim of the Office of Space Commercialization. In it, he discusses the government’s plan to transition the users of semi-codeless GPS technology to new equipment utilizing the

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Request for Public Comments on Semi-Codeless Access to GPS

On May 16, 2008, the Office of Space Commercialization published a notice in the Federal Register requesting public comments on the U.S. government’s plan to phase out codeless and semi-codeless access to GPS by December 31, 2020. The government seeks

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