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  2. Error analysis for the Global Positioning System - Wikipedia

    en.wikipedia.org/wiki/Error_analysis_for_the...

    Hence the satellites' clocks gain approximately 38,640 nanoseconds a day or 38.6 μs per day due to relativistic effects in total. In order to compensate for this gain, a GPS clock's frequency needs to be slowed by the fraction: 5.307 × 10 −10 – 8.349 × 10 −11 = 4.472 × 10 −10

  3. Real-time locating system - Wikipedia

    en.wikipedia.org/wiki/Real-time_locating_system

    Current location-tracking technologies can be used to pinpoint users of mobile devices in several ways. First, service providers have access to network-based and handset-based technologies that can locate a phone for emergency purposes. Second, historical location can frequently be discerned from service provider records.

  4. GPS signals - Wikipedia

    en.wikipedia.org/wiki/GPS_signals

    The GPS week number is now represented as 13 bits, or 8192 weeks, and only repeats every 157.0 years, meaning the next return to zero won't occur until the year 2137. This is longer compared to the L1 NAV message's use of a 10-bit week number, which returns to zero every 19.6 years. There is a packet that contains a GPS-to-GNSS time offset.

  5. Strava is an accurate GPS tracking app with plenty of social ...

    www.aol.com/strava-accurate-gps-tracking-app...

    I’ve always enjoyed exploring new ways to track my activity. There’s nothing like strapping on a new wearable or loading up a new app before hitting the road. I’m all for this relatively new ...

  6. Global Positioning System - Wikipedia

    en.wikipedia.org/wiki/Global_Positioning_System

    Clock synchronization: the accuracy of GPS time signals (±10 ns) [114] is second only to the atomic clocks they are based on, and is used in applications such as GPS disciplined oscillators. Disaster relief/emergency services: many emergency services depend upon GPS for location and timing capabilities.

  7. Real-time kinematic positioning - Wikipedia

    en.wikipedia.org/wiki/Real-time_kinematic...

    A surveyor uses a GNSS receiver with an RTK solution to accurately locate a parking stripe for a topographic survey. Real-time kinematic positioning (RTK) is the application of surveying to correct for common errors in current satellite navigation (GNSS) systems. [1]

  8. Indoor positioning system - Wikipedia

    en.wikipedia.org/wiki/Indoor_positioning_system

    An indoor location tracking map on a mobile phone. An indoor positioning system (IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations. [1]

  9. I tried Walmart's $15 AirTag alternative, the Onn Item ... - AOL

    www.aol.com/lifestyle/onn-item-tracker-review...

    Bottom line: I can't recommend the Onn Item Tracker. Even when my first unit was working, it wasn't as loud as an AirTag, meaning I'd have a harder time hearing it beep while trying to locate it.