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News You Can Use 11/09/00
Where
Are We?
If your car is stolen, with the right
alarm system installed, it will call the police and tell them
where your car is at the moment. Get lost while driving and you
can press a button on the dashboard and ask someone who already
knows where you are how to get to your destination. How do they
do that? The answer is GPS (Global Positioning System).
Until two or three years ago, only technicians outside the mainstream
of society used GPS. Now it is becoming more common and will provide
enhanced functionality to many areas of our lives. The GPS we
see is a spin-off of technology used by the military. It's how
they put those smart bombs through the windows of buildings in
Iraq during the Gulf War. The foundation of the GPS system is
a network of twenty-something satellites that orbit the earth
in a fixed orbit. From any point on the earth's surface there
are up to 12 satellites overhead. You can locate any point by
triangulating on three known points. GPS uses a minimum of four
points to assure accuracy, and most receivers can interpret the
signal from up to 12 satellites. The signal was originally degraded
for civilian use and you could only pinpoint your location to
within 60 to 80 feet. The thinking was too precise a signal could
be used against us by terrorists. In July 2000 the government
turned off the degraded aspect of the signal and now a handheld
GPS unit can pinpoint your location on the surface of the earth
to within 12 feet.
There are a number of ways we can benefit
from GPS technology. Those moving map displays in new car dashboards
help us get to our destination or around congestion. Private pilots
are able to make a precision approach at any airport, not only
those where the FAA has installed millions of dollars of precision
landing equipment. Services like OnStar will dispatch emergency
vehicles to your exact location if your airbag deploys; this could
save your life or reduce medical costs. In many communities
ambulances and police units are now dispatched based on which
unit a GPS monitoring computer knows is closest to the call; this
could result in lower medical and property insurance rates. Insurance
losses could be further reduced because armored car companies
know exactly where their vehicles are. This also holds true
for long haul trucking companies. Not only will they know where
your freight is, but also if it has made any unscheduled or unauthorized
stops along the way.
A number of companies produce GPS based
products. But before you run out and buy their stock keep in
mind that despite increased sales more and more companies are
entering the market and the chip sets you find in these receivers
are being made by an increasing number of companies. The technology
is great, but at this point in time we don't believe there are
any investment plays in this area. We'll let you know if this
changes.
QUOTE:
"He who
is afraid of a thing gives it power over him." - Moorish
Proverb
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