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The first military GPS five-channel receiver, weighing 270 pounds.
Jim Whittaker uses a Magellan GPS receiver on Mt. Rainier.
A Smithsonian researcher using high-precision GPS to survey a sand dune.
A tactical unmanned aerial vehicle for providing close observation in hazardous situations.
From maintaining infrastructure, transporting goods, delivering services, or just meeting friends, people often use technology just as sophisticated as that used by pilots and soldiers. How does it work?
The NIST-7 provided a standard frequency rather than the time of day.
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Portable GPS jammers are traded clandestinely and used by those who wish not to be tracked or otherwise located by GPS.
GPS-guided precision delivery system.
