• Pre-loaded with maps of the U.S. and Canada; complete with spoken turn-by-turn instructions and 3D graphics
• Lifetime Traffic Updates included–outsmart traffic and avoid delays for life with real-time information via your TomTom
• Pre-loaded with more than 7 million points of interest in over 60 destination categories–gas stations, restaurants, hotels, ATMs, and more
• IQ Routes technology calculates the fastest route possible based on time of day, saving you time, fuel, and money
• Advanced Lane Guidance indicates exactly which lane to use, so you can go confidently

Outsmart traffic with the TomTom XL 335T. With complete widescreen navigation plus Lifetime Traffic Updates, you’ll always stay informed and minimize delays. Based on up-to-date traffic information, your device will recalculate travel time and suggest alternate routes. Spoken turn-by-turn instructions, including street names, will guide you to any address in the U.S. and Canada–including more than 7 million pre-loaded points of interest. Get complete widescreen navigation with Lifetime Traff

List Price: $ 189.95

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TomTom XXL 550T 5-Inch Portable GPS Navigator (Lifetime Traffic Edition)

• Preloaded with maps of the US, Canada, and Mexico, complete with spoken turn-by-turn instructions and 3D graphics
• Lifetime Traffic Updates included–outsmart traffic and avoid delays for life with real-time information via your TomTom
• More than 7 million points of interest in over 60 destination categories–gas stations, restaurants, hotels, ATMs and more
• IQ Routes Technology calculates the fastest route possible based on time of day, saving you time, fuel and money
• Advanced Lane Guidance indicates exactly which lane to use, so you can go confidently

XL 550T 5″ Widescreen Auto GPS Navigation UnitOutsmart traffic with the TomTom XXL 550·T. With complete 5-inch widescreen navigation plus Lifetime Traffic Updates* you’ll always outsmart traffic and avoid delays with real-time information via your TomTom. TomTom automatically updates you with the latest traffic information, recalculates your trip time, and suggests alternate routes. Since TomTom has the industry’s most accurate and dependable maps you’ll have access to one million more miles of

List Price: $ 229.00

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Find More Gps Products

So simply, a GPS is an electronic device that can determine one’s precise location on earth. GPS is the short form of Global Positioning System. This very large navigation system was developed and implemented by the United States’ Department of Defence. The primary function of a GPS receiver is to pinpoint its actual location on earth using the signals it intercepts from GPS satellites. To do this, the GPS receiver must be able to locate and intercept signals from three or more GPS satellites. After intercepting the signals, GPS receivers use basic principles of mathematics called triangulation or trilateration to compute its actual position.

A GPS navigation system will save you money at the fuel pump. Imagine, no driving around hoping to find your destination. No more stopping in the gas station to ask for directions. How about arguing in the car…you should have turned left not right or stop and ask for directions. You know we have all been there. It’s already known that GPS devices can help you drive more efficiently, as well as saving you a lot of money on gas. Driving these days can get very expensive when it comes to gas prices, so buying a GPS Device can help cut down on those prices, and even in some cases find out the lowest gas prices in the area! If you have been holding back in previous years, now would be the perfect time to buy a GPS device of your own. While prices on gas have gone up, prices on GPS devices have come down.

A couple of key points when selesting a navigation system include but are not limited to:

Make sure the GPS has at least 5 million points of interest as this will aloow you to find stores, restaurants and other businesses by name. You also can input points of interest manually if you want.

It also nice to have a brand with an interface that is simple to use. The more user friendly the interface, the more frequently you are apt to use it. So look for a good interface and an attractive design like the Tom Tom Go One.

You also will want to see which maps are included. Be sure the GPS navigation system has the map of your country included. Imagine buyinf a Go One with a map of the US and Canada, but you live in England, oops. On that note, make sure your GPS can update with a new map because what if you move to the US and yours has a map of England, oops again. Most will allow you to update the map, just be sure,

New technology has given us wonderful gifts and powers over the years beyond imagination. A GPS navigation system or an auto navigation system is one of those technological wonders that is so accessible and of great interest, that millions of people use them on a daily basis. If you travel locally or across country, or enjoy exploring the great outdoors or even enjoy a round of golf, pick up a GPS navigation system and you’ll always be able to find your way home. You can learn more about GPS navigation systems at youronesearch.

GPS Navigation successfully manages through the coordination of satellites orbiting the sphere. GPS Navigation Receivers, which are the earth permanent plans in GPS navigation, synchronize with 24 channel Earth orbiting satellites, allowing GPS Navigation Receivers to ascertain its strict scene, as well as its flow bearing and the quickness it is vacant, or slightly the quickness, scene and bearing the abuser-on-hand with it is vacant.

Officially named NAVSTAR GPS, the total portion of GPS Navigation was urban by the United States Department of excuse, and was named as such by John Walsh, one of the key steering board members of the cast. The satellites, which are crucial to the successful process of GPS Navigation, are maintained and managed by the United States Air cogency 50th hole Wing, figure about 750 million US Dollars a year. As an article, GPS Navigation is considered as a shared good, and is accessible for each, for navigational use, and other non-threatening activities.

As an aid to navigation excursions, GPS Navigation organisms justly function well. It mainly utilizes three or four of the twenty four satellites vacant on a channel Earth orbit, to triangulate a GPS Navigation receivers scene. GPS Navigation organisms are also very valuable for map-making excursions, land surveying casts, and other commercial and scientific land surveying activities. As time-to-incident references GPS Navigation schemes are also very valuable, particularly when chatting about earthquakes, as well as with time-synchronization casts of telecommunication companies.

GPS Navigation Receivers are the end-abuser border for the GPS organism. These receivers manage with an receiver permanent to the signals imminent from the satellite, or the satellite organism. These GPS navigation receivers are regularly described by the number of channels one variety could nickname. The number of channels a GPS navigation receiver ropes, says a lot about the number of satellites the GPS navigation receiver could actually join to, or observe, simultaneously.

These living GPS Navigation receivers come integrated with different skin, the most admired of which would be mp3 audio sort live capabilities. Most GPS Navigation receivers also come with sort based maps, which come in usable when plotting a trekers course.

All in all, when it comes to trekling, the use of a GPS navigation receiver would deeply enhance stuff for trekers.

When we learn, we continue on a path of growth. Therefore, learning about this subject has already helped you more than you know.

GPS Navigation Systems have come a long way

Gps systems have come a long way since they were first designed for the US millitary. The first signal from NAVSTAR 1 was received on Feb. 22, 1978. NAVSTAR 1 was launched from Vandenberg Air Force Base in California and was the first of 24 satellites that make up the Global Positioning System (GPS). The first generation of satellites that make up the Global Positioning Systems 24 satellites were launched between Feb. 22, 1978 and Oct. 9, 1985. Since it First became operational the Global Positioning Systems has revolutionized the way America goes to war and provides a GPS system in which the world relies on for precise navigation.

The Global Positioning System’s constellation of orbiting satellites is managed by the United States Air Force 50th Space Wing. The unit is the host wing at Schriever Air Force Base, located in east Colorado Springs, Colorado. They are responsible for tracking and maintaining the command and control, warning, navigational, and communications satellites for Air Force Space Command as well as the Global Positioning System satellites. Full Operational Capability was declared by NAVSTAR in April 1995 (NAVSTAR is an acronym for NAVigation Satellite Timing and Ranging, and is the official U.S. Government name given to the GPS satellite system).

The US government granted the Global Positioning System available for civilian use in the late 1980s and with no subscription fees or setup charges to use the GPS system the civilian GPS market exploded, especially in the last decade. A new generation of sophisticated GPS satellites are replacing the older satellites and there are now 34 GPS satellites in orbit that provide combat capability for military applications and aircraft navigation aids. Civilian applications include ATM’s, bank and stock market transactions as well as power grid management. Currently 31 of the 34 GPS satellites in orbit transmit navigation and timing signals to civilian and military users around the world.

The civilian GPS system wasn’t always as it is today and the US military is still keeping the most accurate Global Positioning Systems available classified for national security. But GPS upgrades for two new civilian signals to enhanced user accuracy and reliability, particularly with respect to aviation safety were planned in 1998. Then on May 2, 2000 “Selective Availability” was discontinued as a result of the 1996 executive order, allowing users to receive a non-degraded GPS signal globally, and in 2004 QUALCOMM announced the successful tests of assisted GPS for mobile phones that led the way for the GPS aided cell phones that are widely used today.

In 2005, the first third generation GPS satellite was launched and began transmitting a second civilian signal for enhanced user performance. Then in September of 2007 the Air Force completed a four-phase transition of the Global Positioning Systems ground segment to it’s new Architecture Evolution Plan. The ground segment’s provide command and control of the satellites and generates the navigation message for satellites to broadcast to the users GPS device to calculate their earth’s position. The new Gps satellites include new high-powered, anti-jam military-code, along with other accuracy, reliability, and data integrity improvements for both civil and military users. This modernized version of the world’s greatest free utility was designed to ensure the US has the most precise and secure positioning, navigation and timing capability through 2030.

In 2004 the United States signed an agreement with the European Community establishing cooperation with Europe’s planned Galileo system. Galileo is a global navigation satellite system (GNSS) that is currently being built by the European Union and is separate from but complimentary to the United States Global Positioning System. The European Union’s Galileo system should be operational by 2013. The European Community’s political aim is to provide an independent GPS system that the European nations can rely on in times of war or political disagreement, because both Russia or the USA could disable use of their national systems by others (through encryption).

The Russian GPS system GLONASS is a radio-based satellite navigation system that was developed by the former Soviet Union and now operated for the Russian government by the Russian Space Forces. Like the European GPS system the Russian GPS system also functions separate from but is complimentary to the United States Global Positioning System. Russia began launching satellites for their GPS system into space on October 12, 1982 and was completed in 1995. The system rapidly fell into disrepair fallowing the collapse of the Russian economy but in 2001 the Russian government began restoring the system with hopes of restoring global coverage by the end of 2009.

Depending on the GPS unit a GPS receiver only needs a signal from 3-4 satellites to calculate the units position and will work in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or set up fees like with a cell phone to operate GPS receivers and although some GPS receivers have extra features like real time traffic updates that will have a monthly charge, some GPS receivers like Garmins Nuvi “T” series come with free live traffic for the life of the unit. Today’s GPS is extremely accurate thanks to their parallel multi-channel design. Garmin’s 12 parallel channel receivers are very quick to lock onto satellites when first turned on and they maintain a strong lock even in dense foliage or city’s with tall buildings because they continuously track signals from up to 12 satellites at any given time. Even if a 12 parallel channel GPS receiver loses signals from 8 satellites at once it will still function properly.

WAAS (Wide Area Augmentation System) was developed by the Federal Aviation Administration to augment the Global Positioning System to improve its accuracy, integrity, and availability. WAAS was originally intended to enable aircraft to rely on GPS for all phases of flight, including the precision approach to airport’s within its coverage area. All though originally intended for aviation most GPS receivers today are WAAS-enabled including automotive, boating chartplotters and hand-held units. WAAS uses a network of ground based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites’ signals. Measurements from these reference stations are routed to master stations and then they send correction messages to geostationary WAAS satellites. Those satellites then broadcast the correction messages back to Earth, where WAAS-enabled GPS receivers use the correction data while computing their positions to improve accuracy. WAAS enabled GPS receivers are accurate to within 3 meters and that make them the most accurate GPS receivers for civilian use on the market today. In fact a WAAS-enabled GPS receiver can even give you directions right down to the lane your car is traveling in (as long as the mapping program supports “lane assist” directions) and With no additional equipment or fees required to take advantage of WAAS-enabled GPS receivers they are becoming as common as cell phone’s.