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What Makes the Discount Garmin Nuvi 760 so Useful?

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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 two parts, satellites and individual receivers.

There are 24 GPS satellites orbiting the earth, sending signals to receivers. Using the signals, the receivers can identify their locations, usually within 15 meters. Pinpointing a two-dimensional location (latitude and longitude) requires the receiver to gather signals from at least three satellites. To identify a three-dimensional point, four or more satellites must be used.

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 GPS satellites are designed to orbit the earth twice each day. Their paths have been carefully mapped so that they work together to cover the globe with signals. As they continue on their orbits, the signals they send are picked up by the receiver units on the ground. The signals, although powerful, can only travel by line of sight. This means that they travel freely in a straight line that is unimpeded by solid objects like buildings or mountains.
The signals sent by the satellites are constantly being read by the receivers on the ground. The receivers compare the precis e 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 receiver?s 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.

For 24 hours each day, the GPS satellites transmit their signals to the earth, regardless of the weather conditions. They are powered by solar panels and have battery packs for backup power when needed. As they travel in their orbit of approximately 12,000 miles above the earth, small rocket boosters attached to the satellites keep them on course.

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 signal?s travel time is affected. Another difficult situation is when the GPS receiver?s 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 user?s 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.

The popularity of GPS technology is sure to continue, and will probably even grow in the next few years. GPS units continue to be enhanced by their manufacturers, with even more features, functions, and benefits for their users. The future is certain to bring even more advanced GPS technology.