clifto wrote:
> Kurt wrote:
>
>> "Richard B. Gilbert" <rgilbert88@comcast.net> wrote:
>>
>>>GPS, or at least the civilian version of it, is only accurate to within
>>>about 300 feet or 100 meters.
>>
>>It's been changed for a few years, now more like 15 meters. Clinton was
>>the one that changed that.
>
>
> http://www.navcen.uscg.gov/faq/gpsfaq.htm#Standard
>
> SPS provides accuracy's of (for position, the accuracy with respect to
> geographic, or geodetic coordinates of the Earth) within:
> 100 meters (2 drms) horizontal 156 meters (2 Sigma) vertical 300 meters
> (99.99% prob.) horizontal 340 nanoseconds time (95% prob.)
>




"What is the status of Selective Availability (SA)?

Effective as of Midnight 01 May 2000, Selective Availability has been set to
zero."


"THE WHITE HOUSE

Office of the Press Secretary

For Immediate Release May 1, 2000

STATEMENT BY THE PRESIDENT REGARDING THE UNITED STATES' DECISION TO STOP
DEGRADING GLOBAL POSITIONING SYSTEM ACCURACY

Today, I am pleased to announce that the United States will stop the
intentional degradation of the Global Positioning System (GPS) signals
available to the public beginning at midnight tonight. We call this
degradation feature Selective Availability (SA). This will mean that
civilian users of GPS will be able to pinpoint locations up to ten times
more accurately than they do now. ..."