Do I Need To Know What Is A GPS System?

The Global Positioning System (GPS) is a U.S. space-based radio navigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis -- freely available to all.

For anyone with a GPS receiver, the system will provide location and time. GPS provides accurate location and time information for an unlimited number of people in all weather, day and night, anywhere in the world.

The GPS is made up of three parts: satellites orbiting the Earth; control and monitoring stations on Earth; and the GPS receivers owned by users. GPS satellites broadcast signals from space that are picked up and identified by GPS receivers. Each GPS receiver then provides three-dimensional location (latitude, longitude, and altitude) plus the time.

Individuals may purchase GPS handsets that are readily available through commercial retailers. Equipped with these GPS receivers, users can accurately locate where they are and easily navigate to where they want to go, whether walking, driving, flying, or boating. GPS has become a mainstay of transportation systems worldwide, providing navigation for aviation, ground, and maritime operations.

Disaster relief and emergency services depend upon GPS for location and timing capabilities in their life-saving missions. Everyday activities such as banking, mobile phone operations, and even the control of power grids, are facilitated by the accurate timing provided by GPS. Farmers, surveyors, geologists and countless others perform their work more efficiently, safely, economically, and accurately using the free and open GPS signals.

Three distinct parts make up the Global Positioning System. The first segment of the system consists of 24 satellites, orbiting 20,000 km above the Earth in 12-hour circular orbits. This means that it takes each satellite 12 hours to make a complete circle around the Earth. In order to make sure that they can be detected from anywhere on the Earth's surface, the satellites are divided into six groups of four. Each group is assigned a different path to follow. This creates six orbital planes which completely surround the Earth.

These satellites send radio signals to Earth that contain information about the satellite. Using GPS ground-based receivers, these signals can be detected and used to determine the receivers' positions (latitude, longitude, height.) The radio signals are sent at two different L-band frequencies. L-band refers to a range of frequencies between 390 and 1550 MHz. Within each signal, a coded sequence is sent. By comparing the received sequence with the original sequence, scientists can determine how long it takes for the signal to reach the Earth from the satellite.

The signal delay is useful in learning about the Ionosphere and the Troposphere, two atmospheric layers that surround Earth's surface. A third signal is also sent to the receivers from the satellite. This signal contains data about the health and position of the satellite.

The second part of the GPS system is the ground station, comprised of a receiver and antenna, as well as communication tools to transmit data to the data center. The omni-directional antenna at each site, acting much like a car radio antenna, picks up the satellite signals and transmits them to the site receiver as electric currents. The receiver then separates the signals into different channels designated for a particular satellite and frequency at a particular time. Once the signals have been isolated, the receiver can decode them and split them into individual frequencies.

With this information the receiver produces a general position (latitude, longitude, and height) for the antenna. Later, the data collected by the receiver can be processed again by scientists to determine different things, including another set of position coordinates for the same antenna,this time with millimeter accuracy.

The third part of the system is the data center. The role of the data center is two fold. It both monitors and controls the global GPS stations, and it uses automated computer systems to retrieve and analyze data from the receivers at those stations.

Once processed, the data, along with the original raw data, is made available to scientists around the world for use in a variety of applications. Since global GPS sites are constructed and monitored by different institutions all over the world, there are many different data center locations.

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Source: http://www.pcwriters.com/Article/Do-I-Need-To-Know-What-Is-A-GPS-System-/101630

City Break In Menorca

If you are looking for a holiday that is something a bit different from usual then a city break sailing in Menorca could be just the thing for you. This is a unique and exciting break that you are unlikely to forget any time soon.

One of the best places to go sailing in Menorca when on a city break in Fornells Bay. This is because it is completely enclosed, safe and protected from the waves. This makes it a great place to start regardless of whether you are an expert or have never sailed before.

Fornells has a nature reserves as well as its own coves, beaches and islands which makes it the perfect place to explore. Its clear waters and rocky northern coastline make excellent scenery as well and will help you to completely relax and enjoy your city break.

There are various different courses available while on your city break which is helpful if you have never sailed before or simply wish to brush up on your skills. All abilities are catered for and the lengths of the courses vary so you don't have to spend your whole holiday taking classes.

There are plenty of advantages of going sailing while on a city break. One of these advantages is the fact that you can see so much more than you would be able to see by car. Where else can you explore coves, islands and beaches that you wouldn't normally find?

Another advantage of this type of city break is that you will feel completely relaxed. It can be hard to relax in some places because it's so busy and there are so many other tourists around. When you are sailing it's just you, the people you are with and the sea. Therefore it will be very peaceful and you are free to explore wherever you want.

This is also a great way of picking up new skills if you have never done it before. The courses available will ensure that you are confident enough to go out without an instructor so you can go wherever you want whenever you want. The great thing about this is that you don't have to stick to a timetable so can plan your own city break.

The best thing about it is the following year when you want to go on another city break you can do the same thing but in a different country so you can start exploring all over again.

At Inspired Travel city break we aim to provide holidays of distinction that are flexible and memorable. Any member of our team will be happy to turn your dream holidays into a reality.

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Source: http://www.pcwriters.com/Article/City-Break-In-Menorca/101324

Town on The French Riviera

As though absorbing the colors and lights of the Cote d'Azur is not enough, visitors to Nice may take their pick from galleries, museums, parks and forests. Travelers to this area may also gain an insight into the cultural heritage of Nice, visiting architectural and historical sites and monuments.

Matisse Museum

Out of the many attractive and interesting sites in Nice, one particularly appealing site is the Matisse Museum. Henri Matisse is considered to be one of the top painters of the 20th century. The town of Nice itself and the colors and lights of the Riviera shores served as a great inspiration for Matisse's work. Matisse lived in the Cimiez region of Nice from the year 1917 until his death in 1954. The Matisse Museum is situated in the town where Henri Matisse lived in Nice. The museum itself is positioned inside a seventeenth century villa that has been completely renovated but the style of the architecture remains to be admired in all its glory and beauty. On the Cimiez hill and among the olive trees, this museum is home to this great painter's personal collection of artistic works.

Permanent exhibitions at the Matisse Museum include artistic creations, such as drawings, paintings, engraving and sculptures from different periods of his life. In addition, there is a new wing to the museum which hosts temporary exhibitions. The museum also exhibits a detailed history of the great artist's life. The museum features photographs and some of Matisse's personal belongings.

It should be noted that regularly on Tuesdays, the museum is closed. As with any museum, it is advisable to check with the museum in advance before visiting, regarding holiday closing dates. General opening times are from 10am to 6pm. Admission charges for this site are 4 Euros and a reduced fee of 2,50 Euros.

As far as accommodation goes, there are several hotels of varying standards and in different price levels that are in close proximity to the Matisse Museum. This means that you can choose a place to stay that is convenient in regards to the sites you would like to visit during your stay in Nice. Thanks to the wonders of modern technology, you may search for a suitable place of lodging on the Internet before finalizing the details of your trip to Nice. Times have changed and the World Wide Web enables you to plan your vacation online.

There are many different sites in the attractive town of Nice and as stated above, the Matisse Museum is certainly well worth a visit. Take a trip to Nice and you can revel in the delightful colors, lights and landscapes of this area that were such an inspiration for great works of art. When choosing a holiday location, don't forget that Nice is more than just a nice place to visit.

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Source: http://www.pcwriters.com/Article/Town-on-The-French-Riviera/100995

Top accolade for Haven's Wild Duck Holiday Park

Haven and British Holidays' Wild Duck Holiday Park has been named among the best in the country by Britain's leading holiday review website.

The caravan and camping park, set in 90 acres of pine, alder and silver birch woodlands at Belton, near Great Yarmouth, was came second in a survey to find the best holiday park.

The popular website, which attracts more than 40,000 "hits" a week, features holidaymakers' reviews of their holidays which can vary from being highly favorable to very critical.

Wild Duck - which last year won a special excellence award after achieving the coveted David Bellamy Gold Conservation Award status for five consecutive years -- was named first runner-up behind another Haven holiday park Littlesea at Weymouth on the Dorset coast.

In the latest review of Wild Duck, a holidaymaker who enjoyed a break there last October gives it 10/10, and says the park "was A1, very clean, friendly staff, beautiful setting and excellent value for money. The caravan was top class and very clean. I would recommend Wild Duck to anyone.

"We saw lots of wild animals in the woods and round our caravan. Overall excellent time!"

Wild Duck is one of four holiday parks in the Great Yarmouth area operated by Britain's leading family holiday company Haven and British Holidays.

Together Wild Duck, Caister Holiday Park, Hopton and Seashore attract more than 10,000 holidaymakers and caravan owners a week during the peak season. They are also major local employers with a total complement of almost 600 Team Members in the summer.

Haven is committed to regular investment in its parks and over the closed winter period parks have benefitted from many upgrades and improvements in facilities including the addition of outside patio areas with awnings, heating and lighting near the main entertainment venues in advance of the smoking ban which comes into effect this summer.

Second runner-up in the survey was Center Parcs Oasis, Whine fell Forest, Cumbria.

Commenting on the first holiday park awards, Chris Brown, Managing Director said: 'These awards are not given out lightly and are a valuable accolade for a holiday park to achieve. It is a great thing for the consumer as they can now know where the best holiday parks are at a click of a button and be as sure as possible of having a great holiday.

'It is especially relevant to the consumer as the awards are given based on their customers' comments and evaluate the park's service, cleanliness, value for money and quality of staff.'

Source: http://www.postarticles.com/Article/Top-accolade-for-Haven-s-Wild-Duck-Holiday-Park/52915