How GPS Receivers Work

by Vic Hurlstorm on March 11, 2010

GPS receivers are devices that get signals from orbiting satellites in order to determine the location or geographic position. There are very diverse applications of the Global Positioning System as the GPS receivers are used not only by the aviation, the marine and the military but by civilian consumers as well. 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. Although initially, the system was planned for the use of the US military alone, it was soon opened to the public for individual, civilian applications.

In terms of structure, you can choose between two types of GPS receivers: a category of devices that require computer connection to function, and stand alone units that do not depend on anything else. The stand alone devices insure great mobility, being designed for cars mainly. Pre-installed software with route info, routing directions and maps is part of the built-in features of the most advanced GPS receivers. Some units even allow for updates on the local attractions in certain area. Garmin, Magellan, Mio, Navigon or TomTom are the companies that make the best GPS equipment available.

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. The connection of the two devices together can be established through Bluetooth technology, or with a USB or serial cable. 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.

Thanks to the GPS receivers we now install on our cars, navigation is facilitated at the maximum: we no longer depend on rudimentary orientation instruments but on the most efficient technology. GPS modules will not include world maps, but that is hardly an inconvenience. The Google Maps program can be used for downloading data for a certain geographical area or country. 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, theSeattle HCG diet, and uses a Cadillac XLR windscreen windblocker wind deflector.

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