gps accuracy increases
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gps accuracy increases
Hello GPS afficianados,
In case you haven't heard, TONITE the US government is turning off
the "SA" selactive availability error. Typically this error was
induced into the soignal to prevent terrorists (or whatever) from
using our satellites. With this goverment-induced error, GPS
accuracy has been about 200-300 feet.
Tonite, the government will remove the error. Our Garmin rep
estimates (and this is a guess) that accuracy of handheld Garmin GPS
units will be about 20-30 feet.
We will put more informatiopn on http://www.cycoactive.com/gps as
soon as we get it
Enjoy!
Tom
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Remarks of Dr. D. James Baker
Under Secretary of Commerce for Oceans and Atmosphere
Administrator, National Oceanic and Atmospheric
Administration
On the Decision to Discontinue GPS Selective Availability
May 1, 2000
Dr. Lane, on behalf of the Commerce Department, the
Interagency GPS Executive Board, and the millions of GPS
users around the world, I commend the President for taking
this important step today -- a full six years ahead of schedule.
Thanks in no small part to the President's policy, the U.S.
Global Positioning System continues to be THE global
standard for satellite-based navigation, positioning, and
timing. The U.S. policy of free access to both the signal and
the receiver design specifications has enabled users worldwide
to embrace GPS and develop hundreds of applications and
devices that no one dreamed of a few years ago.
For example, farmers are using GPS to map fields and tailor
applications of seed and chemicals, minimizing costs and
contaminant run-off. Oil companies in Britain, Finland, and
elsewhere are using GPS to identify drilling sites in the middle
of the sea. And just a few months ago, a Japanese company
unveiled a Dick Tracy-style wristwatch with a fully functional
GPS receiver built in.
Overall, the global market for GPS goods and services is
booming, with sales to exceed $8 billion this year and $16
billion by 2003. Today's action will accelerate this growth by
eliminating a significant impediment to the adoption and use
of GPS.
Within my agency alone, there will be significant benefits,
including improved fisheries border enforcement; more
effective search and rescue and hazardous spill response
operations; streamlined weather satellite data processing; and
better electronic navigational charting for ships.
At other government agencies, the higher accuracy will
improve responses to emergency calls from cell phones
equipped with GPS for "E911" capability. Natural resource
management agencies and emergency relief organizations will
be able to map and manage floodplains, levees, wetlands,
forests -- even individual trees -- using basic GPS without
costly, labor-intensive GPS augmentations. The same is true
for the management of highways and waterways by state and
federal authorities. NASA will have more precise control over
satellite orbits, improving scientific results. And International
Space Station operations will be simplified, enhancing
astronaut safety.
Outside the government, businesses and individuals will enjoy
an even greater range of benefits. More telecommunications
firms will use highly precise GPS time - now even MORE
precise - for synchronizing phone and data networks.
Taxicabs, buses, commercial trucks, and railroads will
improve as individual vehicles are tracked and routed more
efficiently. Recreational hikers, boaters, and pilots will see an
immediate improvement in the accuracy of basic GPS
receivers, resulting in better situational awareness and
increased safety. All of these benefits will come without any
receiver upgrades or fees whatsoever.
And now the really good news: today's action is only the tip of
the iceberg for civilian GPS improvements. It's the first step in
a long term GPS enhancement program that will add more civil
capabilities to GPS every few years: a second civilian signal by
2003; a third civilian signal by 2005; nationwide and regional
augmentation systems for safer land, air, and sea travel; and
next-generation capabilities being dreamed up as we speak as
part of the "GPS III" program.
At this time, we will be happy to take questions from the
audience.
INTERAGENCY GPS
EXECUTIVE BOARD
IGEB Executive Secretariat
4805 Herbert C. Hoover Building
Washington, D.C. 20230
Phone: (202) 482-5809
Fax: (202) 501-4178
ExecSec@...
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+------------------------------------+
| CycoActive Products tel (206) 323-2349
| 701 34th Ave fax (206) 325-6016
| Seattle, WA 98122 USA
| webpage: http://www.cycoactive.com
| e-mail: TomMyers@...
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