Sunday, November 28, 2010

TomTom XXL 540TM 5-Inch Widescreen Portable GPS Navigator (Lifetime Traffic & Maps Edition) Review

Get street smart while using the TomTom XXL 540TM complete, 5.0 inch widescreen navigation featuring Lifetime Traffic in addition to Map Updates. Outwit traffic in addition to reduce delays with Lifetime Traffic Updates. 

According to incoming traffic events, your device will recommend alternate routes. In addition to, with Lifetime Map Updates you will always drive with modern and a large amount exact roadmaps. On average, 15% of the road network adjustments change every year, so it is important to possess the nearly all up-to-date routes. Using the XXL 540TM you'll always stay recent. 

Saturday, October 2, 2010

TomTom USB Car Charger for TomTom GPS Units Review

If you lost or misplaced yout original TomTom GPS charger the TomTom USB Car Charger for TomTom GPS Units is a perfect replacement. Its just llike the original except it is less prone to breaking.

Here is what others are saying:

"I purchased this unit for my TomTom, due to the other one going bad. It works great. If you need a replacement charger for the car don't hesitate to purchase" 

"I lost the original so I bought a replacement. This TomTom Car Charger works great. As far as I can tell, it's exactly like the original."

TomTom USB Car Charger for TomTom GPS Units 

Wednesday, September 1, 2010

Basic Info On GPS

GPS or Global Positioning System is a fully functional Global Navigation Satellite System. This system uses an artificial constellation of 24 medium Earth orbit satellites. These satellites transmit microwave signals, thus enabling a GPS receiver to determine its location, speed, direction and time. This system was developed by United States Department of Defense and was named as NAVSTAR GPS which was given by Mr. John Walsh.

This satellite constellation is managed by United States Air Force 50th Space Wing. The cost is approximately 750 US dollars every year, including the maintenance cost, replacement, research and development. After shoot down of Korean Air Lines Flight 007 in the year 1983, a directive was issued which made the GPS available for civilian use and has been used extensively since then.

It has become a very useful tool for making maps, surveying landscapes, commerce and many scientific uses. It also provides time reference which can be used in many applications which include study of earthquake and telecommunication network synchronization.

A GPS receiver simply calculates the distance between itself and three more GPS satellite. Each satellite has an atomic clock in it continually transmits certain data containing its exact time, location of the transmitting satellite and the almanac. 

The receiver then measures the reception time of the signal. Thus the distance to each satellite is known. Knowing three such distances, a trilateration is formed. By using a fourth satellite, need for a clock at receiver is avoided.

The Global Positioning System is used in a variety of Military and Civilian Applications. It allows soldiers find their objectives in a dark or completely unfamiliar territory and coordinate troop movement and supplies. GPS receivers which military personnel use are called Commanders and Soldier Digital Assistants. A combination of GPS and communication through radio enables real time vehicle tracking.

It is also used in marking targets as hostile and enables the precision guided munitions to allow them engage these targets with high accuracy. Air to Ground roles of military aircrafts use GPS to find targets. GPS also allows targeting for military weapons like ICBMs, Cruise missiles, precision guided missile. Artillery based projectiles are embedded with GPS receivers and can withstand forces up to 12,000G. 

These are used for 155 mm Howitzers. Any Downed pilot can be easily located if he has GPS receiver. It is widely used by military for reconnaissance and mapping. Some GPS satellites also have nuclear detonation detectors.

GPS helps civilians a lot in surveying and navigation. Its ability to calculate local speed and orientation is extremely useful. Time transfer is possible because of its capability to synchronize clock. A widely used example of use of GPS is CDMA digital cell phone.

Each base uses a GPS timing receiver to synchronize the codes with different base stations and thus making it easy inter-cellular hand off and thus support emergency phone calls and other many applications. GPS equipment has also revolutionized tectonics by measuring the fault motion during earthquakes.

The two GPS developers, Ivan Getting and Bradford Parkinson have received national academy of Engineering Charles Stark Draper prize during year 2003. Roger L Easton received National Medal for technology on February 13, 2006. 

Other similar tracking systems are Beidou, which has been developed by China and is proposed to be expanded into COMPASS; Galilieo, which is been developed by European Union along with many other countries like India and China; GLONASS, which is been developed by Russia is fully available in partnership with India; IRNSS is India`s proposed regional system and QZSS which has been proposed by Japan.

Tuesday, August 31, 2010

The Importance Of GPS Devices

Are you one of those people who would rather drive around town for hours than stop and ask for directions? If so, a Global positioning system, or GPS, could be the perfect tool for you.

A GPS is an operational navigational system that employs the use of navigational satellites. In other words, it tracks an individual's location or provides direction, all by using an existing satellite system. GPS units are also capable of providing real time reference on earth, or within its orbit.

Saturday, August 14, 2010

TomTom XXL 540S 5-Inch Widescreen Portable GPS Navigator Review

Remembering addresses is a pain! Knowing how to actually get to your destination is an even bigger hassle!

TomTom XXL 540S 5-Inch Widescreen Portable GPS NavigatorLuckily the people behind TomTom knew everyday people, like you, were facing this daily task. That is why they released the TomTom XXL 540S 5-Inch Widescreen Portable GPS Navigator . It is the perfect answer to your problem.

Its as simple as turning it on, inserting the address and your are on your way. But wait there is more!

Friday, August 13, 2010

TomTom XXL 540M 5-Inch Widescreen Portable GPS Navigator Review

TomTom XXL 540M 5-Inch Widescreen Portable GPS NavigatorWant to end the stress of remembering addresses for good? Want to be certain that this left turn doesn't lead you to a dead end but to your destination?

If any of the issues above are a constant battle then the TomTom XXL 540M 5-Inch Widescreen Portable GPS Navigator , is your perfect solution.