Auto GPS » Latitude And Longitude

GPS – Bringing The World Together

admin — Sat, 20 Feb 2010 19:36:55 +0000

GPS, or Global Positioning System, has become for the 21st century what bloodhounds and used to be for police forces and bread crumbs were for Hansel and Gretel: both a way to find a person or target, and a way for a person to keep from becoming lost. GPS uses its “eyes in the sky”, a group of twenty-one operating and three backup satellites in orbit nearly twelve thousand miles above the Earth, to interpret the signals sent from GPS devices down below.

GPS translates those signals into information about the latitude, longitude, and altitude of the device that sent it, and beams the information back to a GPS receiver in the same device. The whole operation is done in split seconds, accurate to within five meters, and is the result of over three decades and twelve billion (and rising) dollars spent by the US Department of Defense.

Military GPS Applications

While the DoD initially installed GPS systems in their Intercontinental Ballistic Missiles to help them locate their targets with pinpoint accuracy, the GPS technology has now fund applications far beyond its use in weapons systems. The US military used it once again in 1991, during the first Gulf War, when GPS was essential for the mapping of huge uncharted tracts of desert.

Because GPS information can be provided as a readout, interpreted, and printed as a map of the target terrain, it saved the military countless man-hours and risk to the personnel who would otherwise have had to map the desert while airborne. GPS has its defensive purposes as well; it allows a country to monitor the movements of military troops in another country across the globe and to prepare for an attack well lin advance.

Commercial GPS Application

The first non-military use of sGPS was for marine applications; those lost at sea and unable to navigate by traditional means could simply push a button to signal the GPS satellites and have their latitude and longitude appearing on a screen in a matter of seconds. Today GPS is most widely used in the aviation industry, as an aid to routing aircraft.

GPS technology has advanced so much, in fact, that it is now possible for ships’ computers to be linked to a GPS system which automatically navigates to a preprogrammed destination. GPS can function as both s ship’s navigator and captain, although it is highly improbable that it will replace them.

GPS, in both its military and commercial applications, has made the world a much smaller and safe, place!

By: David Faulkner

Benefits of a GPS Laptop Receiver

admin — Mon, 15 Feb 2010 08:43:09 +0000

A Global Positioning System or GPS uses satellites to transmit signals that can give you the position of anything or anyone that you are searching for by using latitude and longitude. When you think about using a GPS system for traveling you most likely think about one that mounts in your vehicle that can give you directions to any location you desire. These are great systems, but there is a newer more modern version being used today that is called the GPS laptop receiver.

So what are some of the GPS laptop receiver advantages you can look forward to? The first thing that you will enjoy is how simply it is to install on your computer. However, you are required to have windows XP as this is the only one that is compatible at this time. After purchasing the GPS tracking system you are ready to start the installation. Turn on the computer and put in the CD and the installation will begin. It is fast and easy to do. You will get some mapping software with the original CD, but the good news is that you can always add to this as much as you like. If you love to shop, buy CD’s that show you where all the shopping malls are located. Enjoy eating at the finest restaurants; you can have these mapped out for you as well.

You can avoid delays by learning where construction sites are located. Mobile devices make it easy for you to connect to the wireless internet provided by public services so this is a big advantage to using it. You get to choose the mapping information that is stored in your computer so it will be exactly what you need for your travels. You can add or delete information as often as you need changes to be made. You will always have the control needed to make this tracking device suit your individual needs. You will even be notified in advanced by a beep or warning light before losing power to your system, which is a great plus.

If you choose to use this innovated GPS laptop receiver for all of your traveling needs, make sure that you have windows XP as this is the version that is compatible with the systems. The GPS systems that connect to laptops come in a wide price range so there should be one available for your individual needs. They are great for anyone that does a lot of traveling or for the person that only vacations once a year. You can plan your trips in advance with reliable information to get the most from your travels.

By: Kaloyan Stolinov

What Is GPS and How Can It Be Used?

admin — Mon, 08 Feb 2010 10:48:48 +0000

GPS stands for Global Positioning System and was initially designed to be used by the U.S. military and is operated by the U.S. Defense Department. This system consists of 24 satellites, these satellites are 12,000 miles above us, are constantly moving in a precise orbit, have an atomic clock, and are solar powered. They do have a battery backup so they will continue to run in the event of a solar eclipse, and each satellites has a small rocket booster to maintain their orbit. The first satellite was launched in 1978 and it wasn’t until 1994 when there were a total of 24 satellites. Each satellite has a life expectancy of about 10 years, so new satellites are constantly being built and launched. Each satellite weighs about 2,000 pounds and is approximately 17 feet in width when the solar panels are extended. In the 1980s the GPS became available to the public, and although it is still maintain by the U.S. Defense Department there is no charge for its usage by the public.

These 24 satellites orbit the earth twice a day and continuously sends the location of the satellite. A GPS system can tell how far a satellite is away by comparing the time difference between the time a signal was transmitted and the time it was received, the longer it takes the signal to be received by a receiver, the farther away the satellite is. If a GPS is receiving signals from three satellites it can calculate latitude and longitude. Altitude can be determined if the GPS is receiving signals from four satellites.

GPS can be used for navigating your car through traffic day-to-day or tracking a fleet of vehicles. Not only can a driver use a GPS for directions the main office knows where that vehicle is and the speed of the vehicle. GPS can be used while on vacation for activities such as hiking, camping, or hunting. Is your passion fishing but get frustrated trying to find the fish? With a fish finder which uses both GPS technology and sonar you’ll know exactly where to go to find those fish. GPS technology is also being used as a way to track your pet if he wanders off or to safeguard a pet from being stolen.

Another use for GPS is as a child finder with a receiver in a child’s cell phone or wristwatch to ensure a child’s safety. It can be used in a teenager’s car in order to both know where they and how fast they are driving. This could also be used to keep track of someone who tends to ‘roam’ but is not capable enough to find there way back; i.e. someone with Alzheimer’s disease.

As GPS technology improves, it uses will increase. Who knows where it will take us next?

Copyright 2006 Angela Carter

By: Angie Carter

GPS And How It Works

admin — Sun, 17 Jan 2010 22:22:09 +0000

GPS stands for Global Positioning System, a satellite navigation system with twenty-four satellites in orbit. These satellites were put in place by the United States Department of Defense for military uses, and were called NAVSTAR. The first satellite was launched in 1978 and the twenty-fourth and last satellite was finally in place in 1994. In 1980 NAVSTAR was made available to the general public for commercial use.

GPS works 24 hours a day in any weather. The satellites orbit the earth twice a day in a specific orbit that is about 12,000 miles above us. In orbit, the satellites travel as fast as 7,000 miles an hour. As they are orbiting, they transmit information to receivers on earth. The receivers use this information to calculate the user’s location. This calculation is made by determining the difference between the time a transmission was made and when the receiver received it. This is then used to calculate the distance and the position is displayed on the receiver.

For a receiver to calculate a latitude and longitude position is to receive information from three satellites. To calculate latitude, longitude and altitude a receiver must be able to receive information from four or more satellites. After position is known the GPS can then tell the user information about speed, trip distance, the distance to a desired destination, sunrise and sunset times, bearing and other information.

While in orbit, the satellites are powered by solar energy. They also have backup batteries that are used in the event of no solar power such as an eclipse. The energy is used to power small rockets on the satellites that keep them in the proper orbit. At any one time only about 50 watts of power or less is used to transmit information. The satellites are designed to last about ten years, and the U.S. Department of Defense is constantly making and launching replacement satellites. Each satellite is about 2,000 pounds and seventeen feet across when the solar panels are out.

GPS receivers are generally accurate within 15 meters. Other than investing in a receiver there are no fees or other equipment required to access the GPS signal. If very accurate readings are needed, Differential Global Position Systems (DGPS) will provide accuracy within three to five meters. The United States Coast Guard operates the most popular DGPS.

Two power signals are transmitted and are referred to as L1 and L2. The L1 frequency is used for civilian purposes. These signals are relatively low power signals and travel by line of sight, so they can go through clouds, glass, and plastic, but not solid objects like buildings or mountains. In every transmission the satellite sends three types of information, its pseudorandom code, ephemeris data and almanac data. The pseudorandom code is an I.S. code that identifies which satellite the information is being sent from. Ephemeris data tells the receiver where the satellite should be at any time of the day, and almanac data sends information about the status of the satellite, the current date and the time. The almanac data is the part that is essential for determining the user’s position.

By: Chris Simons

Marine GPS

admin — Mon, 21 Dec 2009 23:23:45 +0000

Marine GPS systems have become most boaters’ best friend. Depending on the reasons you need GPS Navigation, they can make it easy to find your way back to shore in unknown waters, navigate at night, and find large fish or avoid debris. History of Marine GPS: While it wasn’t that long ago that boaters or mariners consulted star charts and latitude/longitude numbers to figure out their way back to land, Marine GPS navigation changed the need for the inaccurate tracking system that some could not figure out. GPS or global positioning systems came into vogue after the launch of satellites that could send a signal of latitude and longitude locations to figure exactly where anything was back on Earth.

This principal has been used in fishing sonars and marine GPS systems, that use anywhere from 12 to 24 satellites to figure out positioning. Why Using Marine GPS Navigation Systems? The answer is simple, it is more accurate, less hassle than previous methods to find out where you are on the open sea or any body of water for that matter. Also, the most important reason is for safety. Not only can it keep you from getting lost, but you can chart ways around tropical storms at sea, or alternate routes, for whatever reason.

The Future of Marine GPS: These GPS systems continue to get more sophisticated, and come in hand-held models, all the way up to marine GPS navigation lap top computers. Depending on the functions you want, you can find a marine GPS that can do whatever you want it to, when it comes to navigation, topography in foreign water bodies, or take it hiking and camping with you, if it is a hand-held portable marine GPS. Some of the larger cruisers and yachts use it to “auto-pilot” a ship, and navigate back to port in the dark of night. Advice On

Buying a Marine GPS: Be sure and research all of the models and functions for the type of Marine GPS navigation you are going to be doing. In other words, certain factors, like whether it will be for river fishing or ocean adventures can determine the model you need and the number of functions. If you are looking for a fish finder, you may not need an expensive Marine GPS system with all kinds of bells and whistles. Commercial fishermen, for example, would need them to not only get them back to shore, avoid the paths of storms, and find fish, but might need alarms for shallow reefs or other alarms where a normal recreational fisherman might not need these features.

Marine GPS navigation systems have gotten to be almost a requirement for all types of water navigation, and finding a marine GPS unit is easy at retailers, but especially online, where the choices are unlimited. As more manufacturers have gotten into the GPS systems, even cell phones are GPS capable now. It’s all a matter of the number of functions you need for what you are going to be doing, when it comes to marine GPS navigation.

By: Alexis Kenne

GPS Tracking Software

admin — Wed, 25 Nov 2009 14:03:49 +0000

GPS tracking software is basically what makes GPS tracking devices work. This type of software enables a tracking device to transmit a signal which will be sent to satellites set up in space. The space satellites, in return, narrow down the devices geographic location. The location information returned is usually in latitude and longitude, which is then converted by a decoder into a recognizable address.

GPS tracking software was first used by the American Department of Defense, originally using 21 satellites and 3 replacement satellites. The software was primarily made for aviation, nautical navigation and land navigation. The GPS tracking software is a very intelligent system. The GPS satellites set up in orbit, transmits signals that track the exact location of a GPS receiver, be it a vehicle, mobile phone, or other forms of transportation or tracking devices. Now, the satellites have increased to 30 resulting to a wider range of GPS locations. However a GPS tracking software may also locate vehicles or persons that are not in possession of a GPS receiver. To quickly obtain a location, it will just need an unobstructed view of the satellites.

GPS was originally named NAVSTAR which stands for Navigation System for Timing and Ranging, now we have come to know it as GPS or Global Positioning system. The GPS tracking software has been very helpful in the field of navigation, as traveling in unchartered territories have not been easy since especially during bad weathers. As such, the GPS tracking software was built primarily for traveling in unknown routes, indicating the exact location of a moving vehicle in order to calculate what routes should be taken to assist it in reaching its prospective destinations.

The tracking software is also what enables huge delivery trucks in the U.S. to know their locations and inform their base headquarters of where they are. The tracking software allows this because the user can interact with the tracking unit in several ways. Through the GPS tracking software, a two-way communication between the truck driver and base headquarters can be done, in order to check on the status of the delivery truck on its way to its target destination.

Technology has once again proven that there are more inventions to be made in order to make our travels more safe and precise. With the vast sea and land with which seafarers and land farers must travel, the GPS tracking software is indeed the perfect tool to help them assess their movement, whether they are traveling in sky or water, or land. The best thing which anybody can say about having the GPS software is that for as long as there is no obstruction of the satellite signals, you can determine where you are and where you should be heading. However, should you be in the middle of a forest, then it will cause a bit of a problem for tracking your location with a GPS.

By: Jim Kesel

Free GPS Software

admin — Tue, 24 Nov 2009 04:51:34 +0000

I took a look at some of the online offers for free GPS software and found, like many “free” offers there were often limits and provisos involved. Often the freeware is a scaled–down version of purchasable products. Sometimes the free product has restricted functionality with features disabled, other products are trial–based and are disabled after a certain time (hours or days or use).

An example of limited free GPS software can be found at GPS Utility. The downloadable freeware is limited 100 waypoints and 500 track points. (There are 65,000 of each in the registered version of their program.) The free program gives you a good opportunity to try before you buy, and this is the benefit of most free programs.

There are online sites that list various free GPS software and describe how to use the programs after you download them. Often individuals who have used the programs themselves develop the sites. These are great because they give you an unbiased interpretation of the benefits and disadvantages of the programs before you use them.

Using free GPS software you can download programs that allow you to retrieve and display aerial photos, topographical maps, USGS landmarks. There are programs available that allow you import scanned images and add latitude and longitude points and other data.

Free GPS software downloads are available for PDA units that are capable of communication with GPS receivers. With these downloads you can have a useful navigation assistant, location database manager, and GPS data converter.

Programs to manage GPS waypoint and route files are available for both PC and Mac users. The waypoints and route files can be saved or converted to various formats used by other mapping programs.

If you need to transfer information to and from your GPS receiver and your home computer or laptop there are several free programs that allow you to do so. There are also programs that allow Garmin GPS receivers to “talk” to one another.

Many of the programs listed here are directed at the hiking/trekker community, but there are also free programs available for auto GPS systems and marine navigational systems. I found a couple of marine navigation programs that allow you to download nautical charts and plotters.

There are free GPS software programs that allow you to download street maps that might not be included in your auto–navigation system. If you intend downloading in–vehicle software, make sure that it has audio capacity, an essential safety factor for motorists. One such program offers data for several countries with voice guidance in twelve languages.

Free GPS software is also available for downloading to your cell phone. This is mostly tracking software and can be phone specific. You might want to check with your carrier before downloading anything to your cell phone to make sure that it does not incur extra charges.

As satellites are constantly moving, it is helpful to know the optimal time for data collection in your area. There is free GPS software that includes an almanac to let you know the availability of satellites at any given time.

Some of the free GPS software is brand specific. Programs designed for a Garmin receiver may not work for a Magellan, so check out the specifications carefully, especially if you intend purchasing a registered version after your trial period. Other software works with most brands.

By: Anne King

What is an Car and Truck GPS?

admin — Mon, 23 Nov 2009 18:07:33 +0000

Do you travel a lot? Have you found yourself wishing you had a better way of finding your end point instead of using old fashion paper maps? If so, then you need an Car and Truck GPS. If you don’t know a lot about these devices, then you should know that they are the most modern way to find your way away. They can tell you exactly how to reach your end point by giving you precise directions. These directions are so advanced that it can even tell you when you need to make a turn and in which direction you are traveling. Choosing an Car and Truck GPS that is right for you will depend on how you plan on using the system.

These navigational systems work by using satellites to find your location and then mapping out a route to your end point. Without pinpointing your current location a new end point cannot be found. The system uses latitude and longitude to determine where you are and then to find the location you programmed as your end point. These systems can give you several routes to the location that you are searching for and it is your choice which one you decide to use. There are several different types of Car and Truck GPSs that you can choose for your vehicle.

There are both cheap and expensive Car and Truck GPSs available. Some of the cheaper models plug into the cigarette lighter of your vehicle and is great for the occasional use. However, these are a little harder to use than some of the other types. If you plan on using your system often, then you may want a bigger one with more features. There are several styles and sizes of these to choose from, so make sure you pick one that is suited for your vehicle. You wouldn’t want to choose a system that makes it uncomfortable when passengers are riding.

Some of these systems feature several different ways for you to find your end point. In other words, you can find a end point by using things like the address of the place you are searching for, a street name or choose a location from the map. These systems can use voice commands to help you find your end point. Many of them will also tell you the location of the nearest airport, bus station, train stations, ATM’s and banks. The Car and Truck GPS is a great asset to any vehicle that can ensure you never get lost or miss a turn again.

By: James Kronefield