Starting from the signal from orbiting satellites, GPS receivers are able to determine the geographic position or location in real time. The applications of the Global Position System technology are very large, with GPS receivers functioning for the aviation, the marine, the military and the average consumer. The satellites on which the receivers depend circle the globe twice a day, and they are arranged in such a way on the orbit, that at any moment of the day, four of them should be present on the visible sky allowing one to find the right location or direction. The US military was intended to be the primary beneficiary, but the system and all of its applications were opened to the public after a while.
There are two types of GPS receivers available for purchase: a category of devices that require computer connection to function, and stand alone units that do not depend on anything else. The highest mobility is achieved with the stand alone devices, which perfectly matches car usage. Such GPS receivers include a pre-installed software with interactive street maps, route info, and minute details on routing directions. Some units even allow for updates on the local attractions in certain area. Some of the best sold products in this category are manufactured by Navigon, Garmin, TomTom, Mio or Magellan Navigation.
The computer-connected GPS receivers need to be installed on a computer to function, but they also match the mobility needs if used on a PDA, smartphone or a laptop. Such GPS receivers can be connected either by cables or by Bluetooth technology. You may have to get the navigation software separately from the GPS unit, because less advanced devices do not have it included. Although these GPS receivers seem to be more difficult to work with in the first place because of the installation, they are nevertheless preferred by users because they are cheaper.
While our ancestors had to read the stars to find their way, we can now manage to travel in the urban jungle and all over the world with automatic assistance from GPS receivers. Not all devices come with full world maps, particularly if you buy GPS modules. Most of the time, the user has to incorporate the map for a region or a country by using the download system of Google Maps for instance. From the avoidance of traffic jams, an increase in fuel economy and travel comfort to the possibility to choose the best routes possible and receive lots of practical information, GPS receivers are trustworthy travel companions that rarely fail.
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When the author isn’t using her GPS receiver, she’s a fan of best psychics, the Seattle HCG diet, and uses a Cadillac XLR windscreen windblocker wind deflector.
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