Here are the most common reasons for seeing a less accurate position: GPS interference: When your tracker's line of sight to the sky is blocked - such as by tall buildings, the roof of your home, or very thick forest - it doesn't receive such clear data from GPS satellites, which leads to less accurate positions.
As you can see, GPS Trackers can report the wrong information, but this is generally due to a poor install. When installing a GPS tracker, keep in mind that it needs a clear view of the sky to give you the most accurate information.
GPS truck tracking is renowned for its precise accuracy. In fact, GPS truck trackers are typically accurate to within 10 feet. This high degree of precision is one of the factors that has made GPS tracking so reliable.
GPS devices typically need to receive signals from at least 7 or 8 satellites to calculate location to within about 10 meters. With fewer satellites contributing, the amount of uncertainty and inaccuracy increases.
Accuracy problems are usually caused weak GPS signal, in most cases it happens because GPS antenna is not able to establish good signal. Weak signal can be related to not properly positioned antenna, surrounding which blocks signal (tall buildings, tunnels, garage, underground parking lot) or low quality device.
So can a GPS tracker be blocked? Yes, the GPS signals can be blocked by wet trees, aluminum foil, plastic containers, or even a tin box filled with thick materials can block GPS signals.
GPS signal interference can be caused by malfunctioning or incorrectly configured transmitters, which can inadvertently broadcast signals in the same frequency range as GPS transmissions. GPS interference can also be intentional, when jamming devices emit signals in the GPS frequency.
Present-day GPS tracking units are highly accurate and can provide precise location information.
The major sources of GPS positional error are: Atmospheric Interference. Calculation and rounding errors. Ephemeris (orbital path) data errors.
This happens mostly if there is an obstruction around the device such as tall trees or large buildings, or if the tracking device is underground. Radio interference or signal jamming can also be a problem, in case there are too many GPS trackers in one location.
It depends. GPS satellites broadcast their signals in space with a certain accuracy, but what you receive depends on additional factors, including satellite geometry, signal blockage, atmospheric conditions, and receiver design features/quality.
Typically, the information provided by GPS trackers is accurate to within three meters. However, any obstruction on the line of sight between the device and the sky can affect the accuracy of the location data it transmits, such as tall buildings, bridges, tunnels, or dense forests.
The answer is yes – Australian law allows you to track your company vehicles using GPS, but with certain rules and reservations.
Yes, there are many apps that can detect if a GPS tracker has been installed on your cell phone. If you have an Android phone you can download Certo Mobile Security for free from the Play Store and quickly scan your phone for GPS tracking apps and other malware.
On paper, the result is that the new iPhones are capable of GPS accuracies on a centimetre level, compared to up to 5 meters from a traditional single-frequency GPS.
Atmospheric errors are the most significant source of errors of GPS. With the satellites orbiting at about 20,000km above the earth, the GPS signals have to travel through the ionosphere and the troposphere layers before reaching the receiver antenna.
If your device cannot acquire a GPS signal when fully charged and outside with a clear sky, it may need to be repaired. We recommend a GPS status application rather than a different navigation app, particularly on Android devices, as another navigation app might use non-GPS location signals.
Methods of Correcting GPS Errors
The base station calculates and broadcasts corrections for each satellite as it receives the data. The correction is received by the roving receiver via a radio signal and applied to the position it is calculating.
GPS Evidence Admissibility
GPS units track themselves, not an auto, person, or package. Any GPS track or waypoint admission requires a foundation showing what the unit was attached to, carried by, or contained in, together with the circumstances of its use.
Satellite-based GPS tracking units will operate anywhere on the globe using satellite technology such as GlobalStar or Iridium. They do not require a cellular connection.
Types of communications that can be jammed include phone calls, text messages, GPS systems and Wi-Fi networks. GPS jamming is also known as GPS spoofing. GPS jammers, the devices used to do the jamming, are also referred to as cellphone or signal blockers.
Any electrically conductive metal will reflect and absorb the device's incoming and outgoing signals and interfere with its operation. Wrapping a GPS tracker in aluminum foil is enough to do the job—although copper and even silver work as well. This is an incredibly cheap and easy method of GPS jamming.
One way to find a GPS tracker is to use a bug detector that can scan both the inside and outside of a vehicle. It is also possible to physically detect a GPS tracker in known locations, such as in the OBD port, under the backseat or underneath the car.
The best way to block phone tracking is to use a VPN. But you can also change a few settings on your phone or switch to a different browser to stop tracking. You can hide your location via settings, block ad tracking with a dedicated private browser, and encrypt all of your internet traffic with a VPN.