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Global Positioning System: Difference between revisions
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*In 1998, U.S. Vice President [[Al Gore]] announced plans to upgrade GPS with two new civilian signals for enhanced user accuracy and reliability, particularly with respect to aviation safety. | *In 1998, U.S. Vice President [[Al Gore]] announced plans to upgrade GPS with two new civilian signals for enhanced user accuracy and reliability, particularly with respect to aviation safety. | ||
*On [[May 2]], [[2000]] "Selective Availability" was discontinued, allowing users outside the US military to receive a full quality signal. | *On [[May 2]], [[2000]] "Selective Availability" was discontinued, allowing users outside the US military to receive a full quality signal. | ||
*In 2004, U.S. President | *In 2004, U.S. President George W. Bush updated the national policy, replacing the executive board with the National Space-Based Positioning, Navigation, and Timing Executive Committee. | ||
*The most recent launch was on [[17 November]], [[2006]]. The oldest GPS satellite still in operation was launched in August 1991. | *The most recent launch was on [[17 November]], [[2006]]. The oldest GPS satellite still in operation was launched in August 1991. | ||
