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Vehicle trackers are disabled by emitting radio waves that block the ability of signals to travel between the GPS tracker and satellites, called jamming; by spoofing, which is emitting erroneous signals to be confused wi... More »

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In 2015, some highly rated GPS vehicle trackers are the Spy Tec STI_GL300 Mini Portable Real-Time GPS Tracker, Escort Entourage PS Kit-0019 GPS Vehicle Tracker, MasTrack OBD Live GPS Vehicle Tracker, Linxup LPVAS1 OBD Re... More »

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The LowJack Stolen-Vehicle Recovery System is an aftermarket vehicle-protection device that silently transmits radio signals to law enforcement if an automobile is stolen. The LoJack device connects to the car battery an... More »

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SpaceWeather.com has satellite trackers for spy satellites, the International Space Station and the Hubble Space Telescope. US and Canadian residents can enter a zip or postal code to find out which satellites are in the... More »

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In 2015, some highly rated GPS vehicle trackers are the Spy Tec STI_GL300 Mini Portable Real-Time GPS Tracker, Escort Entourage PS Kit-0019 GPS Vehicle Tracker, MasTrack OBD Live GPS Vehicle Tracker, Linxup LPVAS1 OBD Re... More »

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Global positioning systems (GPS) use satellites to connect with GPS devices and determine their location. Receivers in the devices connect with four or more satellites in the atmosphere and use the distance from the sate... More »

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GPS navigation systems are satellite navigation systems that connect systems on Earth, such as computers and car navigation devices, with satellites in space. The GPS, or Global Positioning System, operates using 24 sate... More »

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