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Shopping in a GPS store can be quite adventurous. Whether shopping online or in a local computer store, the varieties of GPS devices are numerous. From GPS watches to GPS handheld car devices, the GPS store is becoming the store of the future. Your best bet in shopping for a GPS would be in checking out a specific GPS store. A GPS store found online is probably a wise choice in finding whatever you are looking for. The larger ones are very knowledgeable about all the different styles and types of GPS devices. These stores are usually very credible in their merchandise.

A good GPS store will always give you information on the latest GPS devices. They will also provide you with summaries and ratings of the top performing GPS’s in their specific categories. For example, the TomTom GO 910 is the top-of-the-line car GPS. A good GPS store will inform you about this. It will go into detail about the TomTom and give you its opinion on each feature. This store’s pricing will be competitive and they will fight for the latest in technology. Just because an item is more expensive than another does not mean that it is the best. You must depend on the service personnel to advise you on this, and that is why it is good to find a store which you can trust.

Specific GPS Units

A reputable GPS store will always carry GPS software and marine electronics. They should carry automotive GPS units, motorcycle units, handheld GPS devices, chart plotters, fitness/training GPS units, fixed mount GPS’s, GPS accessories, brand accessories, GPS/FishFinders, GPS/FRS radios, laptop/PDA GPS units, and other choice products. Their salespeople or customer support staff should be extremely well-versed in all the technical areas of the different GPS units. With the advancement of GPS devices in all areas of life, many of these stores are popping up everywhere.

Since various GPS units are used by firemen, soldiers, sailors, hikers, lumberjacks, delivery people, drivers and sportsmen of all kind, your local GPS store will undoubtedly be a common sight in every neighborhood. Maps will soon be completely unnecessary if the craze for GPS devices stays on its upsurge. When you find a GPS store that meets your needs, it would be a good idea to stick with it. With all of the new technology being developed everyday; your GPS store will soon become your best friend. Whether it’s online, or down the street, locating a GPS store is a very good idea, and a very important step in keeping up with the technology of the future.

Soon after 1978, the NAVSTAR GPS (Navigation Satellite Timing and Ranging Global Positioning System) became operational in the United States. This was the first Global Positioning System (GPS) and was designed for the use of the United States military and other friendly forces. At that time, GPS receivers were considerably larger than they are today; however, they were already relatively small as the users of most of the receivers at this time were anticipated to be on the battlefield or in the nosecone of a missile seeking a course correction.

Currently, there are 30 active satellites in the constellation of satellites that defines the current GPS, where three or four of these are denoted as backup satellites. Although the operation of the GPS is managed by the National Space-Based Positioning, Navigation, and Timing (PNT) Executive Committee, and supported by the PNT Executive Secretariat, operational and logistics support is in the hands of the US Space Command. The objective of this GPS continues to be to provide land, sea, and airborne travelers the information to know their three dimensional position, velocity, and time, 24 hours a day, in all weather, and anywhere in the world.

The Role of the GPS Receiver

A GPS receiver’s job is to locate four or more of these satellites in order to use a process known as trilateration to determine the GPS receivers’ position. The more reference points (satellites) the GPS receiver can tune into, the more accurate the positioning calculation will be. The GPS receiver actually performs the calculations itself. It starts by analyzing the high-frequency, low-power radio signals from the GPS satellites which are traveling with the velocity of the speed of light. The signal from the satellite is itself encoded with a message that says when the signal was sent. The GPS receiver knows when the signal was received. The velocity of the wave is known, because the receiver has now calculated how long it took for the signal to get to it. This tells the receiver the distance, in miles, from that satellite to the receiver. The GPS receiver does this for three, four or more satellites, and from this information, it can “triangulate” its own position. The more satellites a receiver can tune into, the more accurate the position will be.

The Components of a GPS Receiver

Most standard GPS receivers must have an antenna that is tuned to the frequencies transmitted by the satellites, custom receiver-processors, and a very highly-stable clock which is often a crystal oscillator. Particular models may also have a continuously updating display showing location, usually in latitude and longitude, and will sometimes include the velocity as well. Although we now have an almost universal capability across the world with phones, PDA’s and cars, all having their own GPS receivers, it is important to note that this system is still operated by the United States military and is provided primarily for the public good.

Getting lost and staying lost is becoming more difficult everyday as the price of a GPS receiver has fallen drastically over the past decade to enable just about everyone to have one. Hunters, travelers and even construction workers have use for a GPS receiver, however knowing how to interpret the information will determine just how valuable it is to carry.

Two dozen working satellites, plus a few spares, are circling the globe over 12,000 miles up, continually sending signals to the ground. By checking the current time, the distance between the satellite and the GPS receiver as well as altitude, the receiver can offer a location on the ground. By receiving information from four or more satellites the location can be even more exact as the overlapping information will allow the GPS receiver to find a probable location based on information from multiple sources.

While signals from a global position satellite are traveling a long distance to reach the GPS receiver units, there are some barriers to the signals getting through. Parking garages, for example, may block the signals and storm activity may slow the signal down causing locations to be slightly off track.

GPS Receiver Part Of Larger Units

Those hiking through the wilderness, such as hunters, may lose their bearings and having a GPS receiver with them can help them find their way back home. Travelers like the fact that their car system can tell them where they are if they get lost, and if they subscribe to a navigational service, can quickly find the directions to get back on their intended route.

Construction workers count on their high-tech GPS receiver to pinpoint their location by accepting signals from up to 20 different satellites. This gives a much more accurate location and when looking for property boundaries, this can save a lot of time for construction. It can also help in locating underground utility lines and prevent them from being damaged during digging.

Many businesses will have a GPS receiver in their office to help keep track of their vehicles, if equipped with tracking devices, and also keep track of shipments to better determine estimated arrival times. They can also use this equipment should a vehicle become lost or stolen on its route.

For persons traveling a GPS receiver can help if they get lost. By calling local authorities they give them their current location and get directions to where they need to go.

There was a time not so long ago when people carried cameras in order to record momentous occasions on an outdoor excursion, and a tape deck player for entertainment purposes. The cellular phone came along, and changed these traditional means of experiencing the outdoors by offering all of these features packaged into a single phone unit. This has led to many different makes and models of cell phones becoming available, including the GPS phone.

Know the Location of the Caller

GPS phones are the latest technological inventions that are allowing people to know instantly where a caller is located, and are much like having your own tracking system contained in a simple and convenient handheld device. The GPS phone system will track down the location of any caller, anywhere in the world. It works on radio navigation via signals obtained through satellites that are orbiting the earth.

The first consumer use of the GPS can be traced back to around 1995, although the United States military has been using a version of the system since 1978. The main components of a GPS system include satellites, earth monitoring systems and the receivers themselves. Satellites send out signals to the earth, which are received by a GPS phone where they are processed in order to determine the location of the caller. The more signals that are received, the more accurate the information that the GPS phone will be able to provide to the owner of the phone.

Perhaps the most advantageous use of the GPS phone is its use in an emergency situation, when a 911 call can easily be made via the mobile phone. The GPS technology will allow the emergency crews to pinpoint the location of the caller, and thus provide speedier help to the affected person or persons.

GPS phones will no doubt also provide precise location information; however, there are laws that protect the user by only allowing information pertaining to the owner of the GPS phone to be released with the owner’s consent. The exception to this rule is a 911 emergency situation. Thus, society as a whole greatly benefits from the GPS technology that is embodied in GPS phones, and the world has shrunk to a much smaller size. Users of this new technology can be reassured about their safety when they do wander beyond their familiar borders.

Of course, an owner may be concerned about the issue of privacy when it comes to this readily available information. In this regard, there have been many court rulings in favor of protecting the privacy of the GPS phone owner; so most need not worry unduly about privacy being breached. With laws to protect phone users, there is no reason why a GPS phone owner cannot enjoy the advantages of GPS technology and have their security needs met adequately without their privacy being breached.

A GPS navigation system is a useful way of finding out where your exact location is as well as which direction you are heading in. Besides this basic bit of information, these devices can also be a useful aid in providing other valuable information such as where the next available and closest gas station is, or where the closest restaurant is in the context of your present position.

Gives You much Useful Information

If you want to know where to eat, the GPS navigation system will provide you with a list of restaurants, as well as the type of food that is being served in certain establishments, and the general cost of a meal. The GPS navigation system is also very useful in providing you with the distance in miles to different places. This is of great help when you are traveling long distances and need to know where to take a break in your journey for the night, or where you can stop to give your legs a stretch and use the bathroom. You will be provided information about possible places to stop for the night, complete with location, name of hotel and the cost. And, when you do hit the road on a long journey, the GPS navigation system is there for you with all the information about points of interest along your route.

For those who want to know the shortest route to a particular destination, or the best route to take, the GPS navigation system is there by your side with the best alternatives. Driving on the roads in a big city can become a lot more pleasant if you get valuable information about which route is the shortest, most scenic, and free of traffic. This will allow you to make it to your destination in the most efficient and most enjoyable manner possible.

The most common GPS navigation system that you will find available on the market will generally have a twelve channel receiver, an antenna to receive satellite signals, a CPU for processing the data, a DVD hard drive to store data, a display screen and a voice interface feature that is common with the more advanced sets. The first time you switch on your GPS navigation system, it will usually need some time to collect information to help determine your position. This is known as a “cold start”. Usually, this start up time is less than a minute, although some sets may take three to four minutes to start up. After that, updates are performed in a matter of seconds that will help you to get a three-dimensional fix on your position. Information that is quick, accurate and easy to follow – technology at its finest.

GPS maps and GPS technology are inventions of the United States military, as many technological advances tend to be. GPS technology employs the use of several satellites orbiting the earth to send signals to GPS stations around the country and world. The data from these stations can be transmitted to individual receivers such as the type found in a vehicle, cellular phone, or even wrist watch. Many of these devices will display a map showing the user’s current location, and in the case of vehicle units, will display a GPS map with the user’s destination.

To read a GPS map, it is important to understand the orientation of the device displaying the map. A vehicle-based GPS unit, for example, is usually oriented to the direction the vehicle is traveling, and the cardinal directions move much like a compass. The map of a vehicle unit will have a few items on its key to make understanding the map easier, such as markers for the vehicle itself, the destination, and any stops between the starting point and destination.

The GPS map will also have markings such as major streets, side roads, highways, toll booths, and retail locations available for display. Each GPS unit will have different customizable features, and the owner’s manual will help to make the GPS unit easy to set up. Many GPS maps for automobiles or on hand-held devices, such as a cellular phone or palm unit, are usually very straightforward, with easily recognizable symbols and large print that is simple to read and follow.

Most folks are probably more accustomed to reading GPS maps than they realize. For example, whenever a person is looking at a map for directions or for general orientation, or on the Internet for similar information, they are looking at a GPS map. Google Earth, for example, uses GPS maps of the entire planet to give directions, and in some areas can display pictures right down to individual neighborhood streets or even homes. Yahoo maps are also GPS generated, and are able to provide easy to follow direction to places with just an address.

Making GPS Maps

GPS maps are made by correlating the photos of the earth by satellite, with known maps, and comparing those to the life satellite feeds in correlation to set point on the earth. For someone wanting to make a custom map, one only needs to utilize a GPS receiver that is mapping grade. A mapping grade receiver can accurately chart a location to less than three feet, and can be ideal for surveying land and other activities that require on-site mapping.

A GPS locator is a wonderful means to prevent a child from getting lost, or to keep him from wandering off while exploring the many different places that seem too irresistible to ignore. Though the GPS locator is not always the best option, it can be an effective means of keeping track of little ones between two and ten years of age. The advantage of using such a system is that it can be configured to handle a number of different situations.

Helps Locate and Track Movements of the Child

Most parents like to keep a close eye on the whereabouts of their children, and for this purpose, a GPS locator such as the Wherify GPS locator for children is a good option. It enables you to know the exact location of your child to up to a few feet in accuracy. A circle on the monitor will show you where your child is on the map of a street, and can even help you to trace the child’s movements over a period of time. This device can be particularly useful in large, crowded areas like amusement parks and shopping malls.

GPS locators come in very handy, given the fact that children will have a tendency to wander away in search of some new distraction, and parents will have less concern over a child becoming harmed or getting lost, if they have a method to keep track of his whereabouts. It would thus make sense for a child to wear a GPS locator that will provide parents with the latest location of the child at any given point of time. This will ensure the child’s safety and afford parents some peace of mind in knowing that their children are not at risk of getting lost.

There are many manufacturers of GPS locators, and a good device should have an atomic clock synchronization, built-in pager, be kid tested as well as kid tough, have a request 911 facility, be adjustable to fit right, and have a safety lock so that the GPS locator cannot be removed accidentally, or otherwise. GPS locators can be installed in other items like cars, boats, trailers and airplanes, with installation usually being completed through a simple wire hook-up. It may be used in conjunction with other car or marine alarm systems, and is even programmable to remotely unlock or start up a protected gadget.

There are also GPS locator phones that are available in countries all around the world, and they function as a normal phone while also providing GPS location functions. All in all, the GPS locator is something that every caring parent could use to keep track of their children’s movements and whereabouts.
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