One potential drawback for consumers in the market for a handheld GPS is its geographic reliability. Unlike its larger predecessor, the handheld GPS relies on a minimum of three available satellites, therefore making it less reliable, with a typical accuracy of within about feet 30 m. A military mandate restricts the devices from maintaining a accuracy capable of within about 16 feet 5 m.
In addition to his freelance work for EasyTechJunkie and several other websites, Mitch has written dozens of album reviews, allowing him to showcase his love of music and media. Mitch Morgan. In the 21st century, tech-companies developed more advanced tracking and navigation systems which are more accurate in tracking, mapping and determining the distance travelled from one point to another.
This technology was primarily designed for military applications until in the s when it was officially released for civilian use.
The most common GPS network used in the world today is called Navstar. To determine your precise location, your GPS device will pick data from orbital satellites at the speed of light. For accuracy, Navstar GPS, which is the most commonly used global navigation system, uses an estimated 24 satellites, including backups, to figure out your exact position. The success of the GPS system is attributed to three major components or segments which include the main satellite in space; receivers on the ground; and the GPS device in your pocket.
The receivers on the ground usually consist of the control network or control segment which is located at Schriever Air Force Base in Colorado.
It can be anything from a Santana CD to a figurine you got on your tour of the Vatican. Any kind of fun bauble or tchotchke works well, just don't ever include any weapons, food items, alcohol or illegal drugs. Chances are, the cache will include the log in book and a pen or pencil.
This is a fun way to keep track of fellow geocachers. There are many Web sites that have cache locations, but geocache. If you're interested in using your handheld GPS device to geocache, make sure you bring along some extra batteries before you set out into the woods.
Not only will you not be able to find your cache, but you could always get lost if you device runs out of juice. Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. Survival Gear. See more pictures of car gadgets. Handheld GPS Maps " ". Handheld GPS Geocaching " ". How does wool keep you warm even when it's wet? Which is better for navigation -- compass or GPS?
Cite This! 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.
Earth is surrounded by navigation satellites. Credit: NOAA. GPS can be used to keep an eye on dangerous natural hazards, too! Tsunamis GPS can help provide early warning of tsunamis. Credit: mnlamberson.
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