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How accurate is gps?

Added: 27-11-2008
Author: Markus Hamilton
Category: GPS

Answering a question that is constantly changing with technological developments such as the U.S. law. The first consumer GPS receiver on the market far less accurate than the receiver currently available, although the same satellite. In addition, before the year 2000, established military accidentally inaccuracies in the civilian GPS signal for security reasons. They called intentional selective availability error signal. In May 2000, President Clinton made the decision to turn off SA and enable all citizens to obtain an accurate GPS signals. Soldiers still have the ability to disable or introduce errors in GPS signals at any time and no information but the capacity is generally only used for specific national security.

Whether using GPS technology is available as the year 2007 reached a level of accuracy of 15-30 meters under normal conditions. Garmin, now produces the most popular GPS receiver, GPS unit to claim their right in 50 feet of 95% of the time. Even the line Garmin GPS receiver, the accuracy of different specifications for the various chips used in designing a different receiver.

GPS Receiver Design affect GPS accuracy

If you use a GPS unit that searches more accurate,'s important to consider types of units's Chip. Latest technology in SiRFStar III GPS receiver chips from SiRF. For Chip receiver is switched on and AAS can hope to achieve accuracy levels better GPS available under current conditions.

Environment affects GPS Accuracy

Many different environmental factors can also affect the accuracy of your GPS receiver. Heavy tree cover, tall buildings, in the valley, and every place where you look to the sky low can affect how your GPS is accurate. The weather can also damage the accuracy of GPS units.

As you can see, there is no simple answer to the question how accurate is GPS?. However, you now know the main reasons that could affect the accuracy of GPS.

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How accurate is gps?
Writed: 25-08-2006 | author: Dagfinn Rognerud

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How accurate is gps?