In the olden days, ancestors used to take a look at the stars at night in order to determine their position and path for travel. The accuracy of this method depends on the skills of those who studied the stars. But with the emergence of technology, now we are using modern-day GPS technology to find our location. With the help of a car GPS tracker NZ, you can be able to get the exact location of your vehicle, location history, monitor the performance of your vehicle, etc. GPS technology has been revolutionized by several industries by enhancing the efficiency of their operations.
Talking about the accuracy of GPS devices, they are designed to track objects and people more accurately than any other tracking device. These devices are providing very high and near-perfect accuracy. In this article, we are going to discuss how accurate are GPS trackers.
How Did GPS Trackers Work?
GPS technology was first developed by the US defense department in 1978 and made these systems public in 1983. It became fully operational in 1995 and in the year 1996, it started to use in cars and other vehicles. They are having three fundamental parts, a satellite, a ground receiving station, and the receiver on the tracker. There are around 32 satellites that are helpful in giving you the accurate position of the object that has a GPS receiver on it.
The tracker receives the signal from the satellite and determines the distance to the satellite through the travel time of the signal. This process is known as Trilateration, which is used to determine the exact location based on the distance from the GPS satellites.
How Accurate are GPS Trackers?
The technology used in GPS tracking devices is more advanced and unique so that it provides you with the exact location of objects up to 10 meters. Some higher-end GPS trackers offer precise accuracy of up to 1 meter. The signals from the satellites are more accurate, but the receiving signal from the GPS devices depends on several factors such as satellite geometry, signal blockage, atmospheric conditions, design of the receiving device, etc.
The tracker deduces its position when the distance of at least four satellites is affirmed. If the GPS tracker detects more satellites, the accuracy of the device increases.
There are several reasons available for a GPS tracking device, which shows inaccurate data of the tracking object. This includes satellite signal obstruction because of taller buildings, bridges, and trees, radio interference, solar storms, satellite under maintenance, design, and specification of the device, etc.
When choosing a GPS tracking device, making sure to get a superior quality receiver and install it in a place for receiving the signal is an effective way to improve the accuracy of the GPS trackers.
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