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  1. Home | GPS.gov

    May 13, 2025 · What is GPS? The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. The Global Positioning System (GPS) …

  2. GPS | GPS.gov

    The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. This system consists of three segments: the space segment, …

  3. The U.S. Global Positioning System (GPS) Standard Positioning Service (SPS) consists of space-based positioning, navigation, and timing (PNT) signals generated from space vehicles orbiting the earth …

  4. This Interface Specification (IS) defines the requirements related to the interface between the Space Segment (SS) of the Global Positioning System (GPS) and the navigation User Segment (US) of the …

  5. The U.S. Global Positioning System (GPS) Standard Positioning Service (SPS) consists of space-based positioning, navigation, and timing (PNT) signals delivered free of direct user fees for peaceful civil, …

  6. Interface Control Documents (ICDs) & Interface Specifications (ISs)

    Information on the civil GPS signals and codes broadcast at the L1, L2, and L5 frequencies. The communication boundaries between the Global Positioning System and other systems, as well as …

  7. Other Global Navigation Satellite Systems (GNSS) | GPS.gov

    While GPS is the most prevalent GNSS, other nations are fielding, or have fielded, their own systems to provide complementary, independent PNT capability. The main ones are described below. GNSS …

  8. GPS.gov: Interface Control Documents

    Feb 5, 2025 · The communication boundaries between the Global Positioning System and other systems, as well as within the GPS itself, are known as interfaces. Interface Control Documents …

  9. Sep 13, 2011 · Change Topic: User Range Accuracy (URA) Definition This change package accommodates the text changes to support the proposed solution (see table below) within the public …

  10. Oct 4, 2001 · The U.S. Global Positioning System (GPS) Standard Positioning Service (SPS) consists of space-based positioning, navigation, and timing (PNT) signals delivered free of direct user fees for …