
The White House Briefing Room
March 30, 1998
VICE PRESIDENT GORE ANNOUNCES ENHANCEMENTS TO THE GLOBAL POSITIONING SYSTEM THAT WILL BENEFIT CIVILIAN USERS WORLDWIDE
Message Creation Date was at 30-MAR-1998 11:14:00
THE WHITE HOUSE
Office of the Vice President
__________________________________________________________________
For Immediate Release Contact:
Monday, March 30, 1998 (202) 456-7035
VICE PRESIDENT GORE ANNOUNCES ENHANCEMENTS TO THE GLOBAL POSITIONING SYSTEM
THAT WILL BENEFIT CIVILIAN USERS WORLDWIDE
Washington DC--Vice President Gore today announced that a second civilian
signal will be provided by the U.S. Global Positioning System.
&This new civilian signal will mean significant improvements in navigation,
positioning and timing services to millions of users worldwide--from
backpackers and fishermen to farmers, airline pilots, and scientists,8 the
Vice President said.
The addition of a second civil signal represents a strong commitment by the
United States to civil GPS users worldwide and is a major step in the evolution
of GPS as a global information utility. Much like the Internet, GPS is
becoming increasingly indispensable for navigation, positioning, and timing by
users around the world. Also like the Internet, GPS has become an engine of
economic growth and efficiency as businesses and consumers continue to develop
new and creative applications of this technology.
The addition of a second frequency will greatly enhance the accuracy,
reliability and robustness of civilian GPS receivers by enabling them to make
more effective corrections for the distorting effects of the Earth,s
atmosphere on the signals from space. GPS has always provided signals on two
frequencies for military users for this purpose. Today,s announcement marks a
new era in which civilians will have access to the same type of capability.
&The decision announced today demonstrates that we can successfully balance
the needs of civilian users with the demands of national security,8 Vice
President Gore said. &GPS civil signals are, and will continue to be,
provided free of charge to consumers, businesses, and scientists around the
world. We will continue to do everything we can to protect these GPS signals
and to promote GPS applications for commercial, public safety, and national
security purposes.8
The addition of a second civil signal has been recommended by a number of
expert panels, the most recent of which was the White House Commission on
Aviation Safety and Security, chaired by the Vice President. Today,s
announcement fulfills a pledge made last March by the Departments of Defense
and Transportation to reach a decision on a second civil frequency within a
year. The Departments of Defense and Transportation co-chair an Interagency
GPS Executive Board, created by President Clinton in 1996 to manage GPS and its
U.S. government augmentations.
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&This new civilian signal will mean significant improvements in navigation,
positioning and timing services to millions of users worldwide--from
backpackers and fishermen to farmers, airline pilots, and scientists,8 Vice
President Gore said.
The NAVSTAR Global Positioning System (GPS) is a constellation of 24
satellites developed, launched, and maintained by the U.S. Air Force that
provides positioning, timing, and navigation signals free-of-charge to both
military and civilian users worldwide.
A second civil frequency will allow receivers to measure the time of arrival
for two signals that have passed through the Earth,s atmosphere and correct
for the distortion introduced by passage from space to earth.
An improved location calculation will allow safety-critical users requiring
dynamic, reliable capability to be more reliant on the GPS signal, improve the
overall accuracy of the system for the average user, and allow the
high-accuracy users (surveying, geodesy, weather forecasters, etc.) to
determine their data in a faster, more reliable manner. In addition, the
second civil signal will allow the safety-critical users to have a backup
signal in the event of inadvertent disruption of the current civil signal.
The Interagency GPS Executive Board (IGEB) has selected the 1227.6 MHZ band
(currently known as the L2 signal) for the addition of new civil capability. A
third civil signal will also be added with a decision on the frequency to be
made in August of this year. The decision on which of these two new signals
the Government will pursue to become the safety-of-life service signal will
also be made in August.
One of the key factors in deciding which frequency to pursue as the
safety-of-life signal is a commitment by all members of the IGEB to have a
safety-of-life service signal available by 2005.
The new signals are intended to be added to the GPS Block IIF satellites.
The new signals will be available to all civil users worldwide.
Internationally, interest has been expressed via the International Civil
Aviation Organization (ICAO) in the use of a second GPS civil signal in
conjunction with the Japanese MSAS and the European EGNOS augmentation programs.
Currently the GPS system is used by a wide range of users: from cars and
trucks on the nation,s highways to ships at sea and on inland waterways; from
civil aviation to satellites in space, from earthquake monitoring equipment to
surveyors to backpackers; new industries such as precision farming; and the
electrical power companies and long-distance phone systems which derive timing
and synchronization from the signals.