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What Makes the Discount Garmin Nuvi 760 so Reliable?

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New technologies are introduced into the market every day, and some of the most advanced items available today are Global Positioning System (GPS) receivers. The GPS helps people locate their precise positions on the globe, find other points of interest, and get directions between locations. Many manufacturers have begun building and offering receivers, but one of the clear standouts is the discount Garmin nuvi 760 GPS receiver.

The GPS consists of satellites and receivers. The 24 satellites send signals to the receivers on the ground, which calculate their own locations (with an average accuracy of within 15 meters). To plot a two-dimensional location (latitude and longitude), the receiver needs to be able to read signals from three satellites. With the information from four or more satellites, a three-dimensional location can be determined.

The U.S. military originally placed the 24 GPS satellites into orbit to assist with military operations around the world. The system was offered for civilian use in the 1980s (without cost). Today, various companies manufacture a wide range of GPS receiver units that are used in conjunction with the satellites to help everyday people pinpoint their own locations. Some units, like the discount Garmin nuvi 760 GPS, also have the ability to perform many other functions.

The satellites that make up the GPS make a complete orbit around the earth twice each day. Each travels a path that has been carefully plotted to enable the system to provide complete global coverage. While they travel, they send signals to the ground. The signals travel via a line of sight. This means that they can pass through things like glass and clouds, but not through solid objects like mountains or buildings.
The signals sent by the satellites are constantly being read by the receivers on the ground. The receivers compare the precise time they receive each satellite?s signal to the time the signal left the satellite. This tells the receiver how far it is from the satellite. Using this information and the signals from other satellites, the receiver is able to determine its precise position on the globe.

When the satellites and receiver have worked together to pinpoint the location of the receiver unit, they can also perform other functions that are valuable to users on the ground. These functions might include calculating the receivers bearing, speed, time and distance to destination, and more. The discount Garmin nuvi 760 GPS is one unit that can perform each of these functions, as well as others.

The 24 satellites in the GPS transmit signals 24 hours a day around the world, in weather ranging from clear sunny days to rainy or snowy nights. They operate on solar power and battery backups as they travel their orbits approximately 12,000 miles above the ground. The satellites are kept on track by small booster rockets attached to their exteriors.
Although the satellites function virtually all of the time, there are situations in which it is more difficult to read the signal or calculate position. In some of these situations such as when a signal bounces off of buildings or rock formations the signals travel time is affected. Another difficult situation is when the GPS receivers clock does not show the same time as the satellites atomic clocks. Both of these situations affect the accuracy of the location calculations.

With twelve parallel channels receiving satellite signals, the discount Garmin nuvi 760 GPS provides extremely accurate information to the user. The multiple channels enable the nuvi to lock on to multiple signals very quickly so the users position can be determined right away. Another benefit of having twelve channels is that it makes it easier for the receiver to maintain a signal in challenging environments such as a location with tall skyscrapers or a dense forest.

GPS technology is certain to retain its popularity, and perhaps even to gain more popularity in the coming years. As the technology continues to evolve, GPS units will become more advanced as well, and new uses for it will be found. Stay tuned to see what happens next.