What is GPS and do I need it? (2024)

Explore with confidence

Is GPS a good idea?

Nothing beats the joys of exploring on foot. And as we become more confident in planning walks we may want to stride out on less well-trodden routes. There’s an ever-increasing number of GPS (Global Positioning System) options that can help us get more out of our walks. There are two main types of GPS technologies to choose between: GPS apps that you access via your smartphone or separate GPS devices. Both can be helpful navigation tools, although we recommend they are used in conjunction with a traditional map and compass.

Plan your route using GPS technology

Most GPS devices or GPS smartphone apps will have a function that lets you plan and map your walk ahead of time. They will calculate the distance and the ascent. This can be done on the device /smartphone or on your home computer. If you are walking with others, you will be able to share the route with them. This is a good idea in case your battery dies, or you need to split the group. If you’re heading off alone, particularly to a remote area, it’s a good idea to leave a copy of your planned route with a friend or relative and let them know what time you will be back.

Stay on track thanks to GPS

The distinct advantage of GPS over paper maps is that it will tell you where you are at any given time. It will also provide information on your pace, distance travelled and elevation. Unlike printed maps, it will also show you up-to-date features such as new roads or buildings. But beware – if you are in a gully or a deep valley your GPS may misread your true location.

Keep a record

By recording your walk, you’ll be able to repeat the walk again, or easily amend it for a future date. You’ll also be able to track your pace or distance travelled over time.

Smartphone app or GPS device?

Both options have pros and cons but generally a smartphone app will be the cheaper option and a good place to start if you are new to using GPS.

What is GPS and do I need it? (1)

Using a smartphone GPS app

Your smartphone will likely have a Maps app installed such as Google Maps or Apple Maps. These are great for getting you from A to B but they aren’t designed with countryside walking in mind. Specialist apps like Ordnance Survey and ViewRanger offer similar functions to a GPS device using your mobile phone signal to track your location. They will show you paths and public rights of way, contours, and potential hazards such as cliffs or quarries.

You should never rely solely on a smartphone app as you may lose signal, particularly in remote areas. Also be aware that constant use of these apps can drain the battery, leaving you unable to use your phone in an emergency. You can preserve your battery life by downloading the map in advance and using your phone’s GPS functions in ‘flight mode’.

The OS Locate app is a great place to start. This free app tells you your Grid Reference and altitude. It’s great to use along with a traditional map. And should things go wrong you can get a reliable reading of your location when calling for help. It’s also has a built-in compass.

Top tips when using a smartphone GPS app

Smartphone screens don’t work well in the wet. Consider using a waterproof cover.

If you are in a group, make sure you have more than one mobile phone. If you are alone, take an external battery pack so you can recharge your phone if needed.

Using a GPS device

GPS devices use satellite signals to locate your current position on the map to an accuracy of 10 – 20 metres. They will also help you navigate a pre-planned route. They tend to be more reliable than smartphone apps. However, if you are walking in remote areas where accurate navigation is safety-critical you should not rely solely on your device as there is a risk your device could fail. To use a GPS device well you will need to already have reasonable map reading and navigation skills.

The Ramblers app

The Ramblers app is exclusive to members, giving you access to thousands of tried-and-tested walking routes. As well as written directions, the app will track your progress along the route.

The Ramblers app features: 

  • Over 4,000 tried and tested walking routes for you to explore 
  • Searchable library of up to 50,000 Ramblers group walks across Great Britain 
  • The latest walking gear reviews and features 
  • Your digital membership card  
  • Access to exclusive discounts and special offers on walking gear and more from our partners  

Download your the free members app by going to the Apple’s App Store or Google Play on your phone and searching for Ramblers. You’ll need your membership number and to sign up on first use. To use the app, you need a smartphone running Apple iOS 8.0 or later, or Android version 5 or later.

Not a Ramblers member?  

The Ramblers app is just one of the many benefits you’ll get when you join the Ramblers. So, what are you waiting for? 

What is GPS and do I need it? (2024)

FAQs

What is GPS and why do we need it? ›

What is GPS? The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. This system consists of three segments: the space segment, the control segment, and the user segment.

What is GPS in very short answer? ›

GPS, or the Global Positioning System, is a global navigation satellite system that provides location, velocity and time synchronization. GPS is everywhere. You can find GPS systems in your car, your smartphone and your watch. GPS helps you get where you are going, from point A to point B.

What is GPS answers? ›

The Global Positioning System (GPS) tells you where you are on Earth. There are five main uses of GPS: Location — Determining a position. Navigation — Getting from one location to another. Tracking — Monitoring object or personal movement.

What does GPS stand for answer? ›

GPS stands for Global Positioning System. It is a satellite-based radio navigation system that finds application in phones, trackers, etc.

Why are GPS needed? ›

GPS technology is important when it comes to providing navigation services and location information for people, pets, and valuable assets. One of the major industries that rely on GPS tracking technology is the fleet management industry.

How does GPS work on a phone? ›

The Short Answer:

GPS is a system of 30+ navigation satellites circling Earth. We know where they are because they constantly send out signals. A GPS receiver in your phone listens for these signals. Once the receiver calculates its distance from four or more GPS satellites, it can figure out where you are.

Who controls GPS? ›

Today, GPS is a multi-use, space-based radio-navigation system owned by the US Government and operated by the United States Air Force to meet national defense, homeland security, civil, commercial, and scientific needs.

How does GPS know where you are? ›

The GPS receiver in your mobile device compares the time signals it receives from the satellites with its internal clock. Knowing the speed of light and when the signals were sent and received, your device can calculate your distance from each satellite, and thereby home in on your longitude, latitude and altitude.

What is a GPS example? ›

For example, a delivery company may use GPS to help track its vehicles, and it can be used in combination with the computer system they use to track where items were delivered.

What is GPS for kids? ›

The Global Positioning System, or GPS, is a highly accurate satellite-based navigation and location system. With a GPS receiver, users can quickly determine their precise latitude, longitude, and altitude. The Navstar GPS system was developed by the U.S. military.

What is GPS in simple words? ›

A global positioning system (GPS) is a network of satellites and receiving devices used to determine the location of something on Earth. Some GPS receivers are so accurate they can establish their location within 1 centimeter.

Is GPS free? ›

Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver.

What is GPS short for? ›

GPS stands for Global Positioning System, and it lets us know where we are and where we are going anywhere on Earth.

What is the basic idea of GPS? ›

GPS is a system of 30+ navigation satellites orbiting the Earth. We know their location precisely because they invariably send out signals. The GPS receiver in your phone receives these signals. Once the receiver calculates its distance from four or more GPS satellites, it can figure out exactly where you are.

Do cell phones use GPS satellites? ›

Cell phone GPS technology relies on the Global Positioning System, a network of satellites that transmit signals to GPS receivers. By measuring the distance between the receiver and multiple satellites, the cell phone can calculate its precise position using the principles of triangulation and trilateration.

Can GPS work without a satellite? ›

A GPS receiver does not transmit any signals, all it does is receive GPS data beamed to earth from GPS satellites. If you can't receive the GPS signals, you can't get your position. Each GPS unit, regardless of size, has a small chipset and GPS antenna.

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