How GPS Tracking Devices Work – A Brief Summary

GPS tracking devices can be used to track people, vehicles, and other assets, anywhere on Earth. Currently, there are 27 satellites orbiting the earth, 24 are operational, and the other three will become operational if one of the satellites happens to fail. At any given time there are at least three satellites that are visible in the sky from a location. These satellites then triangulate on the position of the GPS tracking device. By continuing to triangulate the coordinates at regular intervals, the satellites can determine the speed of an object, the distance traveled, and how long it has been stationary.

There are two main GPS tracking systems currently on the market today. They are classified as Passive (GPS data logger) and Active (real time GPS).

GPS Data Logger Brands & Products

When it comes to passive GPS locators, some of the most popular brands are the LandAirSea FlashBack data logger, and GPS Tracking Key. However, as the monthly subscription costs have declined over the past decade, live GPS trackers now dominate the market. This has resulted in GPS manufacturers ceasing production of GPS data loggers.

Real Time GPS Tracker Brands & Products

As mentioned earlier, real time GPS tracking devices are by far the most popular type of asset trackers on the market. In fact, you can now find a wide array of options on Amazon now. Some of the top-rated GPS car trackers according to Amazon and online reviews include:

  • SpaceHawk GPS
  • Vyncs GPS Tracker
  • MotoSafety
  • Brickhouse Security Spark Nano 7
  • LandAirSea GPS 54
  • Trak4 GPS
  • TrackPort OBD2 GPS
  • Tracki
  • Verizon Connect

Learn more about the best 5 wireless GPS car trackers here

Not all GPS vehicle tracking devices are created equal. When considering the purchase of a GPS tracking unit, comparisons should be made based on accuracy, sensitivity, frequency of sampling points, power sources, reliability, and the software that translates the data into an understandable, easy-to-use format.

GPS Tracking Accuracy

All top-performing car tracking devices , whether they are active or passive, should provide locations that are accurate within 2.5 meters (or roughly 7 feet).

GPS Tracking Sensitivity

Since many GPS tracker applications are covert in nature, the mini GPS needs to be manufactured to maximize GPS reception. Most traditional GPS devices need a clear view of the sky and will lose GPS reception if placed in some concealed positions. The top-rated wireless GPS trackers such as SpaceHawk have been designed with that concern in mind. They are sensitive enough that they can be hidden in covert locations while retaining and maintaining good reception.

GPS Tracking Frequency of Sampling Points

Passive vehicle GPS trackers capture and store GPS signals including time, position, and speed once every second. Most products capture data once every five (5) to ten (10) seconds per sampling. The best GPS data loggers operate second-by-second, representing a better flow of information that can be used to generate greater and more detailed reports.

On the other hand, real time GPS trackers such as Vyncs or the SpyTec GL300 provide real time updates roughly every minute. This is far less than the SpaceHawk mini GPS that can provide realtime updates as quickly as every 3 seconds!

GPS Tracking Power Sources

Since the majority of GPS fleet tracking customers prefer portability from their units, it is critical for the devices to be able to manage power efficiently. The best GPS fleet management solutions should be able to provide a minimum of 20 hours of wheels-in-motion tracking. That means they should be equipped with internal sensors that put the GPS device into sleep mode when the vehicle is not in motion, which helps in extending battery life. Users should expect to receive days or even weeks of tracking ability. Results will vary based on the number of hours in motion per day.

GPS Tracking Reliability

The reality is not all GPS tracking products go through extensive pre-development research and testing to ensure that our customers are purchasing products that are at the forefront of GPS tracking technology. In fact, many are engineered in China and the SIM cards often have issues transmitting GPS data on American cellular networks. This is the reason why you should speak to a salesperson and test the technical support they offer before purchasing any GPS vehicle tracker.

GPS Tracking Software

GPS vehicle tracking software typically offers three ways to view and evaluate tracking data in a user-friendly package that will appeal to both novices and advanced computer users.

  • Digital street map: Gives a historical, moment-by-moment replay. Shows when and where the vehicle traveled. The screen shows animated tools, including a speedometer, a clock with a second hand, and a compass.
  • Google Earth satellite map: Accurately displays the driving path and stops on a satellite image.
  • Text activity report: Gives a daily summary, and divides driving activity into segments with detailed descriptions including starting address, departure time, time en route, arrival time, miles traveled, and how long the vehicle stayed at each location.

The significance of second-by-second data is critical in providing a comprehensive, fluid replay of any and all historical tracking data. Any device providing less than second-by-second recording falls short of these expectations. Passive GPS tracking devices are able to record 3,600 positions per driving hour whereas competing devices record every 5 seconds, which only provides 720 positions per driving hour.

Real time GPS car trackers should be able to provide seamless live GPS tracking as fast as every 10 seconds at minimum. With the best GPS car trackers offering real time updates as fast as every 3 seconds.

For more information on some of the best GPS car trackers on the market please check out this article by GPS Tracking Review.