Global Positioning System Reference
In-Depth Information
and on the eve of the rollover, the Canadian Coast Guard had sixty search-
gps seller in Saudi Arabia, offered free software upgrades to the five thousand
customers in the kingdom it had identified as having older units.
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Ultimately the rollover caused no serious problems. A spokesman at the U.S.
Air Force y2k Fusion Center at Maxwell Air Force Base in Alabama termed it
man reported less than a dozen malfunctions among several thousand receiv-
Rockwell Collins received no reports of malfunctions among the two hundred
sumers were early adopters of electronic products. Thousands of complaints
poured in about blank or frozen car navigation screens, and estimates put the
alone sold 270,000 navigation units between 1992 and 1996, but about a quar-
buying automobile navigation systems later, and Ford and General Motors
officials confirmed that there were no problems with the newer equipment.
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Four months after the gps and y2k rollover worries passed came the official
act that gps manufacturers and users had long awaited—President Clinton
signed an order permanently turning off Selective Availability on May 1,
included adding two new civilian signals as replacement satellites were
launched, and he reiterated the commitment to provide gps free of charge. If
the 1996 presidential directive announcing the government's intention to take
these steps acted as a sort of starting gun in the race to commercialize gps,
the fulfillment of signals up to ten times more accurate shifted private devel-
opment into high gear, as shown by the amazing growth of the gps industry
over the first decade of the new millennium.
However, the government did not hand off gps to private industry like a
baton. More than ever, it remained a critical military system, and new security
concerns arose sixteen months later with the September 11, 2001, attacks on
the World Trade Center and Pentagon. gps returned to the battlefield in
Afghanistan and Iraq and on the home front found unexpected uses and famil-
iar questions.
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