A question that many people ask when they decide to buy a GPS tracking device, goes something like this “What is the best GPS for my needs? I want to use it for running, hiking, camping, boating, fishing, and driving. I’m learning to play golf, so golfing capabilities would be nice, too. I don’t want the cheapest GPS device, but would not want to pay more than $300.”

To be honest, I would like to buy a such versatile portable GPS unit myself, but to my best knowledge, there is no such model currently available. GPS devices available on the market today provide a COMPROMISE between different objectives. Some are optimized for driving and giving directions, others for walking, still others for biking, running, boating, golfing, fishing, flying, or even spying. Some cheapest basic GPS units provide you with your longitude/latitude information; others display your position on an electronic map screen.

Just as there is no “best choice” for everyone when choosing a computer, a camera, or a car, there is no “best” unit for multiple applications in the GPS department. “BEST” is highly dependent on your specific lifestyle and needs, money you want to spend, and the features that YOU like.

If you are thinking about buying portable GPS navigation system, read more on GPS Handheld Navigation blog, How to choose the right GPS device for your needs? If you are a golfer, you may be interested to learn how golf GPS systems can help you improve your game. If you enjoy hikng, Hiking with a GPS Handheld Unit may answer some questions that you have about buying best GPS handheld unit for your outdoor adventures. Also learn more about kids GPS, GPS tracking cell phone, and gps vehicle tracking. If you want to save yourself some money, read about buying a refurbished GPS.

Today, everyone can benefit from the use of GPS tracking device. You can track virtually anyone, anything, anywhere, anytime in real time, simply by logging into any laptop or desktop computer. Golf enthusiasts have also discovered many uses for golf GPS systems to help them improve their game.

Golf GPS systems are a fairly new technology. These portable GPS systems are meant to help the players calculate distances and provide them with a host of other features. As the technology becomes more popular among golfers so has the variety of golf GPS systems available to them. Different golfers want and need different information as they seek to improve their game, so in choosing a golf GPS system, the golfer needs to know exactly what he or she is looking for, while also considering price and convenience in using each type of system.

The most critical issue for golfers is accurately estimating distance. How far to the hole? How far is it to the center of the green? How far to clear that water hazard? With golf GPS device you do not need to worry about finding yardage markers, pacing off distances or guessing when you are unfamiliar with a course. The GPS does all hard work for you, so you can enjoy your game more.

A small handheld GPS device, you can bring the GPS to the ball and get accurate distance measurement. Unlike laser devices used for golfing, you don’t have to point and aim or have a direct line of sight to the hole or hazard.

GPS golf systems are small but powerful. Thanks to some of the most advanced GPS satellite technology available, golf GPS tracking device can give you the exact distance between any point on the course and the green or any other target, even without a clear line of sight. All you will have to do upload the particular course map that you are playing to your golf GPS device using your computer, and you will have all detailed course information covering every curve, contour, slope and sandtrap available at their fingertips.

Special features that GPS golf systems provide include shot distance measuring and tracking, digital scorecard and game analysis, and personalized course editing and mapping. Players can keep track of their game digitally and perform an analysis based on pre-determined data points at the end of each round. Whether it’s the filling of a bunker, the lengthening of a tee or a removal of a tree, players can map, edit and save changes noticed on their favorite fairways right on the spot.

Along with these different features of golf GPS systems, there are still others that are being developed, for example GPS golf balls. The use of GPS technology will allow the player to find his or her balls if they are missing and will be able to acurately determine the distance the ball traveled.

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Handheld GPS devices can be used for tracking your location and itinerary whenever you are in the oudoors for your safety and convenience. They can provide you with accurate information about your exact position, elevation, topography, sights of interest, and other details. Portable GPS handheld systems are convenient to carry since they are small and lightweight.

In the past, all we had available was a compass and a map to help us figure our location. Now, with the era of portable GPS devices, you will never get lost even if you don’t have a compass and a map with you when you travel. Equipped with a handheld GPS device, you will never need to ask for directions again.

It is fairly easy to understand how the GPS unit works. Satellites transmit signals and the portable GPS units receive signals. There are 24 satellites that encompass the globe, and usually, you’ll have anywhere from five to twelve satellites in view of a GPS receiver anytime, anywhere. The GPS receiver gets signal from these satellites and calculates its own location based on its position to the satellites. If some of the satellites in view get blocked, or “shaded”, the receiver can simply use an alternate satellite to acquire its position fix.

GPS receiver knows when the satellite sends a signal and measures how long it took to receive the signal sent by the satellite. This enables the portable GPS receiver to calculate how far it is from any particular satellite.

Each satellite transmits data that gives its location and time. All satellites are synchronized to transmit at the same instant. Because the satellites distance to a given point on earth is different for each satellite, the time it takes the signal to reach the portable GPS device also varies depending on the device’s location.

Based on the time and satellite location information, which are both known, it is possible to calculate spheres of location on earth from each satellite. That is, at any point on the sphere, it takes the same time to receive the signal from a particular satellite. After four satellites have been “acquired” (seen) the GPS receiver can calculate its location (longitude and latitude) on earth. This position is based on where the four spheres intersect.

Although a GPS receiver needs at least four satellites to provide a three-dimensional (3D) fix, it can maintain a two-dimensional fix with just three satellites. A 3D fix includes latitude, longitute and altitude; a 2D fix provides just latitude and longitude.

The portable GPS then converts that data into a readable format, and displays it on your GPS device’s screen, for example, your location on a map. How accurate are they? Today most portable GPS units provide data with an accuracy of about 50 ft (+/-), but many do even better than that.

If you are looking to buy handheld gps navigation system, read more about GPS Handheld systems and How to choose the right GPS device for your needs?

If you are thinking about purchasing a GPS device, the first question you have to ask yourself is how you are going to use it. Are you going to be using it for directions and road navigation when driving, for sports, outdoor recreation, or boating?

GPS for hiking, geocaching, and other outdoor fun. If you’re into outdoor fun, you will probably want detailed topography maps on the screen of your GPS. Most GPS handheld devices come with basic maps that show cities and major highways. If you want more topographical detail, you’ll need a special mapping GPS receiver and a compatible software package (usually purchased separately).

If you don’t want detailed maps, you could opt for a basic GPS like the Garmin eTrex Handheld GPS. It doesn’t come with a PC cable, so you’ll have to manually enter waypoints using the tiny onscreen keyboard. If you choose eTrex Venture Handheld GPS (also from Garmin), which comes with a cable, you can just click on the map to set a waypoint and transfer it to your GPS.

GPS for road navigation. For automotive navigation, it’s good to have a GPS that can not only display maps, but will also give you directions. Popular brands include Garmin, Magellan and TomTom – these are all excellent choices. You will need to purchase some accessories, such as cigarette lighter adapter and windshield mounting suction cup.

GPS devices for sports. Portable GPS devices are used by bikers, runners, golfers, and other sports enthusiasts. They all need small lightweight devices that can be easily accessed when on the go. For example, Garmin provides some great devices, that are not just your typical GPS systems, that can be worn on your wrist, just as your watch and act as your personal trainer too. The Garmin Forerunner 101 Personal Training Device and Garmin Forerunner 201 Wrist-Mounted GPS Fitness Computer are especially popular. The Garmin Forerunner 301 GPS Receiver Personal Training Device even provides a heart rate monitor! Golf enthusiasts have also discovered many uses for golf GPS systems to help them improve their game.

GPS units for boaters. If you’re are planning to use your GPS on a boat or a cayak, you’ll need a waterproof device. GPS fish finders can help you ensure success of your next fishing expedition.

GPS for aviation. You can use a portable GPS while flying gliders, hang gliders, and paragliders.

What you need to know GPS software and maps
Most GPS units come with a cable that connects them to your computer. This opens up a world of free maps, aerial photos and 3-D imagery. Learning to use a GPS is fairly straightforward; choosing which software to use is not. GPS Mapping – Make Your Own Maps guides that you can buy on Amazon, can help you with that. It covers all major brands of mapping software, it also explores sources of free software and maps, how to use aerial photos and satellite imagery, and how to view backcountry locations in 3-D. GPS Mapping reduces a reader’s learning curve and gets them mapping right away.

Read more on GPS Handheld Navigation blog. If you are a golfer, you may be interested to learn how golf GPS systems can help you improve your game. Also learn about gps based vehicle tracking system, cell phone GPS tracking, and gps vehicle tracking devices. Some of you may be interested how to catch a cheating spouse with GPS car tracking.