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GPS Trackers

1,124 Products

GPS trackers show you the best routes to avoid traffic congestion. They also prevent you from getting lost by giving you directions to your destination. Interested to learn how GPS works? Read on below to find out.

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Spark Nano 5.0 GPS Tracker
HK$ 627.00
BrickHouse

The Best In Real-Time Tracking Smaller than a cell phone, the Spark Nano GPS tracking device is ideal for small business owners, parents, and anyone else who needs to keep track of what they value most. Loaded with features, this battery-powered GPS tracker gives you real-time location viewing from the comfort of your computer, tablet or smartphone. The Spark Nano's fully rechargeable battery can run for up to two weeks or more under normal use (~1 hour a day), and with motion-activated tracking, you won't waste any battery life when your target isn't moving. This GPS tracking device's weather-resistant body makes it more versatile than comparable trackers. What's New With The Nano 5.0? We've added some exciting new features to our best-in-class portable tracker: Our Track View app is now available for both Android and iPhone users. Enjoy a better, more intuitive tracking experience on your mobile device. Plus, desktop and laptop users can now take advantage of Rapid Track, which lets you switch to an even faster tracking speed for brief intervals when you need it most. For even more reliable location reporting, the Spark Nano 5.0 now utilizes the Verizon network. Verizon provides the most robust coverage in the United States. From big cities to the rural country, the new Nano is our top GPS performer. Extra Features: Works on Exclusive BrickHouse GPS Platform New iPhone and Android App Makes Mobile Tracking Even Easier Preset for 1-Minute Reporting Rapid Track Lets You Switch to a Faster Tracking Speed When You Need it Most Detailed Travel Reports Panic ButtonThe Spark Nano is our most customizable and powerful GPS tracking device. Our exclusive and easy-to-use online tracking platform gives you detailed reports of all the Spark Nano's activity. Get text or email alerts to your computer or smartphone if a vehicle exceeds a user-defined speed. Or set up a geofence and get instant alerts when a person or vehicle moves into or out of a "safe" area you've designated. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. Check the Service Plan tab for important details. Once your tracker has been plugged in, it may take up to 24 hours for it to connect to Verizon and begin reporting. Also note that this unit does not track outside the US. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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TrackPort 3.0 OBD GPS Tracker 3G
HK$ 627.00
BrickHouse

Flexible, Battery-Free Vehicle Tracking at Its Finest The new and improved TrackPort 2.0 is the easiest way to track a car or truck without worrying about battery life. Just plug the device into your cars Obd-Ii (On Board Diagnostic) port. Normally located under the drivers side dash, this port has been standard on all vehicles sold in the United States since 1996. Use your vehicles existing port to supply uninterrupted power to your tracking device. Switching cars? Unlike traditional hardwired tracking devices, this OBD GPS tracker can be easily moved from one vehicle to another with no tools and no effort. Its completely "plug and play." The tracking experience with the TrackPort 2.0 has gotten more intuitive and more mobile with new, exclusive apps for both Android and iPhone users. Check in on your vehicle's location from anywhere with internet, right from your smartphone. Why TrackPort? 30-second updates No batteries to worry about Powered by the BrickHouse Security Tracking platform US tracking only Click Here for International Tracking Service discounts available for multiple units. Call for details The BrickHouse Security Tracking platform delivers real-time updates once a minute. Know where the TrackPort is at any time, view where its been, and run reports on the vehicles behavior from anywhere you have a web connection. Set up geofences to receive alerts via text message or email when your vehicle enters or exits specific areas you choose. Access everything directly from your PC or any smartphone. For the most accurate tracking available, the TrackPort reports location on the Verizon network, which offers the best cellular coverage in the United States. Once your tracker has been plugged in, it may take up to 24 hours for it to connect to Verizon and begin reporting. Also note that this unit does not track outside the US. Check the Service Plan tab for important details. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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Portable Real Time GPS Tracker LBS WiFi Positioning GPS Tracking Device Locator Anti-Lost Alarm for Vehicles Cars Motorcycles
HK$ 537.00
Tomtop

Features: Supports GPS/WiFi/LBS accurate positioning, and it will select the suitable positioning mode based on outdoor different environment. Supports setting electronic fence, when the tracker leaves your pre-set electronic fence, it will alarm to your phone App immediately. Supports remote listening through the phone App, and the voice surveillance function helps you hear what is happening around the tracking device. Supports historical tracking, the APP can query and retain information of 3 months, so you can check the historical moving route record anywhere and anytime. Supports overcharge protection/over-heating protection/short-circuit protection/over-current protection/over-voltage protection/overpower protection, safe to use. 3D streetscape function and real time tracking, allowing you find out the location of your car through the APP map. Mileage statistics function, checking the times of parked/speeding/alarm and the mileage through the APP within the pre-set mileage time horizon. Built-in high sensitive light sensor, and it will alarm to the binding phone once it is tore down unlawfully. Built-in Micro-SIM card slot and it supports GSM card(2G) and 4G card(compatible with 2G network). Easy to use, no need to cut your automobile wires, just insert into GSM card and through specialized phone APP then you can get GPS tracker's location anytime and anywhere. With strong magnetic, easy to install and adsorb to any magnetic surface on your car, not easy to fall off no matter how your car shake. Compact size, very portable, noiseless when working, easily to be concealed, and it works great for tracking cars and motorcycles. Supports voice recording, vibration alarm, speed alarm and low battery alarm.

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Spark Nano GPS Tracker
HK$ 627.00
BrickHouse

The Best In Real-Time Tracking Smaller than a cell phone, the Spark Nano GPS tracking device is ideal for small business owners, parents, and anyone else who needs to keep track of what they value most. Loaded with features, this battery-powered GPS tracker gives you real-time location viewing from the comfort of your computer, tablet or smartphone. The Spark Nano's fully rechargeable battery can run for up to two weeks or more under normal use (~1 hour a day), and with motion-activated tracking, you won't waste any battery life when your target isn't moving. This GPS tracking device's weather-resistant body makes it more versatile than comparable trackers. What's New With The Nano 5.0? We've added some exciting new features to our best-in-class portable tracker: Our Track View app is now available for both Android and iPhone users. Enjoy a better, more intuitive tracking experience on your mobile device. Plus, desktop and laptop users can now take advantage of Rapid Track, which lets you switch to an even faster tracking speed for brief intervals when you need it most. For even more reliable location reporting, BrickHouse Security offers the Spark Nano 5.0 now with the Verizon network upon activation. Verizon provides the most robust coverage in the United States. From big cities to the rural country, the new Nano is our top GPS performer. Extra Features: Works on Exclusive BrickHouse GPS Platform New iPhone and Android App Makes Mobile Tracking Even Easier Rapid Track Lets You Switch to a Faster Tracking Speed When You Need it Most Detailed Travel Reports Panic ButtonThe Spark Nano is our most customizable and powerful GPS tracking device. Our exclusive and easy-to-use online tracking platform gives you detailed reports of all the Spark Nano's activity. Get text or email alerts to your computer or smartphone if a vehicle exceeds a user-defined speed. Or set up a geofence and get instant alerts when a person or vehicle moves into or out of a "safe" area you've designated. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. If you choose to activate your tracker, go to BrickHouseSecurity.com/activate. Also note that this unit does not track outside the US. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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Spark Nano GPS Tracker
HK$ 627.00
BrickHouse

The Best In Real-Time Tracking Smaller than a cell phone, the Spark Nano GPS tracking device is ideal for small business owners, parents, and anyone else who needs to keep track of what they value most. Loaded with features, this battery-powered GPS tracker gives you real-time location viewing from the comfort of your computer, tablet or smartphone. The Spark Nano's fully rechargeable battery can run for up to two weeks or more under normal use (~1 hour a day), and with motion-activated tracking, you won't waste any battery life when your target isn't moving. This GPS tracking device's weather-resistant body makes it more versatile than comparable trackers. What's New With The Nano 5.0? We've added some exciting new features to our best-in-class portable tracker: Our Track View app is now available for both Android and iPhone users. Enjoy a better, more intuitive tracking experience on your mobile device. Plus, desktop and laptop users can now take advantage of Rapid Track, which lets you switch to an even faster tracking speed for brief intervals when you need it most. For even more reliable location reporting, BrickHouse Security offers the Spark Nano 5.0 now with the Verizon network upon activation. Verizon provides the most robust coverage in the United States. From big cities to the rural country, the new Nano is our top GPS performer. Extra Features: Works on Exclusive BrickHouse GPS Platform New iPhone and Android App Makes Mobile Tracking Even Easier Rapid Track Lets You Switch to a Faster Tracking Speed When You Need it Most Detailed Travel Reports Panic ButtonThe Spark Nano is our most customizable and powerful GPS tracking device. Our exclusive and easy-to-use online tracking platform gives you detailed reports of all the Spark Nano's activity. Get text or email alerts to your computer or smartphone if a vehicle exceeds a user-defined speed. Or set up a geofence and get instant alerts when a person or vehicle moves into or out of a "safe" area you've designated. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. If you choose to activate your tracker, go to BrickHouseSecurity.com/activate. Also note that this unit does not track outside the US. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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Spark Nano GPS Tracker
HK$ 627.00
BrickHouse

The Best In Real-Time Tracking Smaller than a cell phone, the Spark Nano GPS tracking device is ideal for small business owners, parents, and anyone else who needs to keep track of what they value most. Loaded with features, this battery-powered GPS tracker gives you real-time location viewing from the comfort of your computer, tablet or smartphone. The Spark Nano's fully rechargeable battery can run for up to two weeks or more under normal use (~1 hour a day), and with motion-activated tracking, you won't waste any battery life when your target isn't moving. This GPS tracking device's weather-resistant body makes it more versatile than comparable trackers. What's New With The Nano 5.0? We've added some exciting new features to our best-in-class portable tracker: Our Track View app is now available for both Android and iPhone users. Enjoy a better, more intuitive tracking experience on your mobile device. Plus, desktop and laptop users can now take advantage of Rapid Track, which lets you switch to an even faster tracking speed for brief intervals when you need it most. For even more reliable location reporting, BrickHouse Security offers the Spark Nano 5.0 now with the Verizon network upon activation. Verizon provides the most robust coverage in the United States. From big cities to the rural country, the new Nano is our top GPS performer. Extra Features: Works on Exclusive BrickHouse GPS Platform New iPhone and Android App Makes Mobile Tracking Even Easier Rapid Track Lets You Switch to a Faster Tracking Speed When You Need it Most Detailed Travel Reports Panic ButtonThe Spark Nano is our most customizable and powerful GPS tracking device. Our exclusive and easy-to-use online tracking platform gives you detailed reports of all the Spark Nano's activity. Get text or email alerts to your computer or smartphone if a vehicle exceeds a user-defined speed. Or set up a geofence and get instant alerts when a person or vehicle moves into or out of a "safe" area you've designated. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. If you choose to activate your tracker, go to BrickHouseSecurity.com/activate. Also note that this unit does not track outside the US. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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SilverCloud Overdrive GPS Tracker
HK$ 2,343.00
BrickHouse

Real-Time Tracking with Real Tracking Time The SilverCloud Overdrive Live GPS Tracker gives users the ability to track the location of any vehicle with ease. This handy little device can be placed in or secured to the exterior or a vehicle with the optional magnet mount kit. This kit also gives the GPS tracker a waterproof feature so that it is not damaged by various weather conditions. The SilverCloud Overdrive is able to provide the most accurate vehicle location within 2.5 meters of the device. Best of all, this surveillance tracking equipment is completely user-friendly and is ready to use in just minutes. By simply logging on to SilverCloud Online, users are able to keep tabs on their GPS tracker through Google Maps. This browser-based mapping interface makes it simple to follow the SilverCloud tracker both quickly and conveniently. Not only is one vehicle able to be tracked through this interface, but multiple vehicles can be tracked without having to downloaded separate software programs. These maps are available in both 2D and 3D views to provide you with a more in-depth look at that surrounding area. This can be especially helpful in determining where the vehicle is located and where it may be heading. Service vehicles such as shuttles, taxis and buses can also take advantage of ShareSpot, a unique feature that enables them to share their exact GPS location in real-time on their website or social networking page. With just one charge of the lithium-ion battery, the device is able to provide 30 days of live tracking during normal driving or up to 2 hours per day. This is more than quadruple the battery life of the standard SilverCloud Tracker. In addition, unlimited historical data is saved on a secure server for viewing. When using the SilverCloud web-based software, activity reports can be viewed and printed that show each stop made by a vehicle or fleet of vehicles including the exact location, speed, mileage, addresses, time and more. A wide range of accessories are also available for this tracker including replacement batteries, magnet mounts, hardware kits and cigarette lighter power adapters for your utmost convenience. The possibilities are endless with the SilverCloud Overdrive GPS device.

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EON 3.0 GPS Tracker
HK$ 1,332.00
BrickHouse

A Complete Asset Tracker The Eon GPS Tracker features everything you need to monitor your valuable assets, all in one rugged, self-contained unitincluding a long-lasting battery, tracking hardware and a powerful magnetic mount. Attach the Eon to your family or company car, your boat, your riding lawnmower or any large asset. Using BrickHouse's exclusive GPS tracking platform and dedicated iOS and Android apps, check in on the Eon's location in real time from any computer, tablet or smartphone. All you need is internet access. You can even set the platform to deliver alerts via text or email the moment motion is detected. Track for Months Without Recharging The Eon's built-in battery lasts for an unbeatable 100 days of live tracking life. When the platform alerts you that the battery is low, simply recharge it and you're ready to go. Its advanced features, rugged construction and industry-leading battery life make the Eon the new state of the art in GPS asset tracking. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. Once your tracker has been plugged in, it may take up to 24 hours for it to connect to the network and begin reporting. Also note that this unit does not track outside the US. See the Service Plan tab for important details. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal and company property, and ensuring the safety of individuals with their consent.

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CDMA Portable GPS Tracker with Large Battery
HK$ 933.00
BrickHouse

A Complete Asset Tracker The Eon GPS Tracker features everything you need to monitor your valuable assets, all in one rugged, self-contained unitincluding a long-lasting battery, tracking hardware and a powerful magnetic mount. Attach the Eon to your family or company car, your boat, your riding lawnmower or any large asset. Using BrickHouse's exclusive GPS tracking platform and dedicated iOS and Android apps, check in on the Eon's location in real time from any computer, tablet or smartphone. All you need is internet access. You can even set the platform to deliver alerts via text or email the moment motion is detected. Track for Months Without Recharging The Eon's built-in battery lasts for an unbeatable 100 days of live tracking life. When the platform alerts you that the battery is low, simply recharge it and you're ready to go. For the most accurate tracking available, the Eon reports location on the Verizon network, which offers the best cellular coverage in the United States. Its advanced features, rugged construction and industry-leading battery life make the Eon the new state of the art in GPS asset tracking. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. Once your tracker has been plugged in, it may take up to 24 hours for it to connect to Verizon and begin reporting. Also note that this unit does not track outside the US. See the Service Plan tab for important details. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal and company property, and ensuring the safety of individuals with their consent.

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3G GPS Tracker Real Live Tracking Wireless Device 20000mAh Big Battery Magnet
HK$ 997.00
Elinz

3G GPS Tracker Real Live Tracking Wireless Device 20000mAh Big Battery Magnet Product Details More Information An answer to your worries is here. 3G GPS tracker is a state of the art technology to capture the location of your car at your convenience. Believe it or not you can install it in seconds. With the strong and powerful magnet you can attached to any iron surface or even on vehicle chassis. You can choose the interval tracking desired up to 6 locations per min using GSM and GPS positioning with Google map tracking. Wait theres more! It has dual mode tracking system using GPS or LBS in tracking your car location. It works with all Australian Telcos. With the Latest GPS Tracking Technology, it enables to run on 2G & 3G Wcdma networks for better accuracy. A Plus Point for you, it uses a BIG 20000mAh lithium-polymer battery that can last longer. Convenience is important so you can track your car location through your mobile EZ tracking APP that is available for both iOs and Android devices. Not just that, you can view replays to in http://www.miitown.com/ from your web browser. Worrying about the rain? Free it up, this Car GPS tracker is Ipx7 splashproof and dustproof rated. Track your car position and avoid the theft to get away. Secure your vehicles now. Product Highlights 3G GPS Tracker Full 3G Support Wcdma for Real-time GPS and GSM tracking. Works on all 3G networks and Quad Band

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EON 3.0 GPS Tracker
HK$ 1,332.00
BrickHouse

A Complete Asset Tracker The Eon GPS Tracker features everything you need to monitor your valuable assets, all in one rugged, self-contained unitincluding a long-lasting battery, tracking hardware and a powerful magnetic mount. Attach the Eon to your family or company car, your boat, your riding lawnmower or any large asset. Using BrickHouse's exclusive GPS tracking platform and dedicated iOS and Android apps, check in on the Eon's location in real time from any computer, tablet or smartphone. All you need is internet access. You can even set the platform to deliver alerts via text or email the moment motion is detected. Track for Months Without Recharging The Eon's built-in battery lasts for an unbeatable 100 days of live tracking life. When the platform alerts you that the battery is low, simply recharge it and you're ready to go. Its advanced features, rugged construction and industry-leading battery life make the Eon the new state of the art in GPS asset tracking. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. Once your tracker has been plugged in, it may take up to 24 hours for it to connect to the network and begin reporting. Also note that this unit does not track outside the US. See the Service Plan tab for important details. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal and company property, and ensuring the safety of individuals with their consent.

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LiveWire 3G GPS Tracker
HK$ 1,175.00
BrickHouse

The Ultimate in Professional Vehicle Tracking The Livewire is a completely covert GPS tracker that easily installs to a car's power source. With 30-second location updates and an external antenna to maximize performance, this powerful hidden car tracker puts you in total control of individual vehicles or fleets - and drivers will never know it's there unless you tell them. Perfect for tracking fleet vehicles, this best-in-class GPS device features improved accuracy, and it's designed specifically to make locating and routing vehicles as simple as possible. What sets the Livewire apart from similar hardwired trackers is its backup battery. Enjoy an unlimited power supply while the car is running and, when the car is off, it will continue to provide location information; ideal for recovering a vehicle if it's been stolen. The backup battery will last nearly 12 hours. Why Livewire? Hardwired, No Batteries Required 30-Second Location Updates Rapid Track Lets You Switch to Even Faster Tracking When You Need it. External Antenna for Increased Accuracy Up to 12-Hour Backup BatteryThis vehicle tracker runs on BrickHouse Security's exclusive GPS platform, giving you a full range of features. Through our easy-to-use platform, you're able to receive speed alerts via text or email if a vehicle exceeds any speed you select. And our new Rapid Track feature lets you switch to an even faster tracking speed for brief periods of time when you need it most (desktop and laptop use only). You can also set geofences, which send you an instant message the moment a vehicle enters or exits a predefined zone. Access highly detailed reports of a car or fleet's travel history, in addition to viewing the tracker's location in real time on three customizable map views. Access all of these features from any device with an internet connection, and check in on your vehicle location conveniently using the free, intuitive app. For the most accurate tracking available, the Livewire reports location on the Verizon network, which offers the best cellular coverage in the United States. Once your tracker has been installed, it may take up to 24 hours for it to connect to Verizon and begin reporting. Also note that this unit does not track outside the US. Interested in purchasing multiple units? Discounted tracking rates available. Call for details. See the Service Plan tab for important details. BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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LiveWire 3G GPS Tracker
HK$ 1,175.00
BrickHouse

Professional Fleet Tracking At Its Finest The Livewire GPS Vehicle Tracker is optimized for long-term vehicle tracking. Perfect for scalable fleet management, the Livewire is the go-to tracker for multiple industries: Delivery companies, taxi and limousine services, police departments, public transportation and many more. With the Livewire, fleet managers can effectively manage vehicle fuel usage to cut down costs, track vehicle performance to remain up-to-date on scheduled maintenance and testing, map routes for increased efficiency and reduced transit times, along with a host of other features. BrickHouse Security's Intuitive Platform Puts You in Control The Livewire uses BrickHouse Security's exclusive GPS platform, enabling you to stay up to the minute on the location of multiple devices from anywhere with an internet connection, directly from iOS and Android apps or a PC. The BrickHouse platform enables a number of customizations: Set up geofences and receive a text or email alert the moment the device enters or exits your predefined zone. Speed alerts notify you the moment the device exceeds a set speed, and detailed reports give you extensive travel histories of your vehicles. The Livewire GPS Vehicle Tracker paired with the BrickHouse platform makes fleet management as customizable and simple as possible. Optimized For Long-Term Tracking & Designed to Combat Theft The Livewire is a best-in-class hardwired tracker, installing similarly to a car stereo. Once installed, the Livewire runs on the vehicle's power; so it won't quit when you need it most. But, what separates the Livewire from the competition is its backup battery. Even if the vehicle is powered off, the Livewire will continue to report its location for up to 12 hours. This feature can help a fleet manager keep tabs on a vehicle even if it's powered off and loaded onto a car carrier trailer or other transport vehicle. For total protection, there is no better GPS unit than the Livewire. Please use the link to activate or reactivate your GPS unit. http://www.brickhousesecurity.com/category/activate.do BrickHouse Security does not support the illicit use of GPS tracking devices. This product is offered for the express purpose of securing personal or company property, and ensuring the safety of individuals with their consent.

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Top GPS Trackers Price List 2018

Top 10 products Price Store
Garmin Edge 1030 HK$ 4,701.00 Amazon
Garmin vivofit jr. HK$ 626.00 Amazon
Garmin eTrex 10 HK$ 886.00 Onsport
Garmin eTrex Touch 35 HK$ 2,612.00 Onsport
Garmin eTrex 20x HK$ 1,567.00 Amazon
Polar V650 HK$ 1,802.00 Amazon
Garmin GPS 72H HK$ 448.00 AliExpress
Polar M460 HK$ 1,489.00 Amazon
Garmin Drive 60 HK$ 1,410.00 Amazon
Garmin eTrex Touch 25 HK$ 2,111.00 Onsport
Most Popular
Garmin Edge 1030

Available in Amazon HK$ 4,701.00 Go to Shop

How Does the GPS System Work

GPS has become a staple service that many Hong Kongns are utilising today. Many Hong Kongn drivers use GPS devices to guide them on the best routes to use to reach a designated destination. GPS systems are accessible via our smartphones and a variety of handheld GPS devices. Some cars also have come with built-in GPS systems for you to navigate your trips easily.

Despite being used almost every day, not many people know how the GPS works. Most people know that GPS, short for Global Position System, basically uses satellites to determine the position of your location and the destination you are heading to. Here is an in-depth insight into how the global positioning system (GPS) works:

Founding of the Global Positioning System

The Global Positioning System, also known as NavStar was built by the US military system and has been fully operational since 1995. The system was initially developed for military navigation but now anyone with a GPS device, be it a mobile phone or a handheld GPS unit, can receive the radio signals broadcasted by the satellites from outer space. The GPS system currently has 31 active satellites orbiting the Earth from 20,000 kilometres away, making two complete orbits a day. Not all are used though as some are spare satellites in case one malfunctions.

Concept Behind the GPS System

GPS uses a lot of complex technology to operate but the concept is relatively simple to understand. The satellites are arranged in such a way that no matter where you are on the planet, there will be at least four GPS satellites that are “visible” at any point of time. Each of these satellites will transmit information about its position and the current time at regular intervals. Your GPS receiver which will analyse and calculate the high-frequency radio signals emitted by the GPS satellites to determine the distance of the satellite based on how long it took for the messages to arrive. Once your device is able to calculate how far away at least three satellites are, it can pinpoint your location through a simple mathematical principle known as trilateration.

Trilateration

To understand trilateration, you need to imagine yourself standing somewhere on Earth with three satellites in the sky above you. If you are able to know the distance you are from one satellite, say Satellite A, then you will be able to build an imaginary circle with the distance you are from the satellite as the radius. By doing the same thing for satellite B and C, you can work out your location by defining a point where these three circles intersect. This is how your GPS receiver determines your location with the only difference is that it uses overlapping spheres instead of circles.

Although an approximate position can be determined with only three satellites but to improve accuracy and obtain precise altitude accuracy, having information from four or more satellites will be ideal. Planning to get yourself a GPS tracker? Brands like Garmin and OEM manufacture reliable GPS units that you can use to ensure that you reach your destination without any hassle.