Re: Garmin GPS accuracy figures?

From: Sam Wormley (swormley1_at_mchsi.com)
Date: 02/16/05 

Date: Wed, 16 Feb 2005 22:07:02 GMT

http://edu-observatory.org/gps/gps_accuracy.html

Charles Gillen wrote:
> My Garmin 2610 StreetPilot's manual specifies position accuracy as "<15
> meters (49 feet), 95% typical" but when the car is at rest the accuracy
> figure displayed on the LCD is often 7 or 9 feet, while when driving it
> usually runs about 14 feet or more.
>
> I don't know how to conceptualize accuracy figures such as 7 or 9 feet...
> is this the radius or diameter of a circle in which my car MAY be found?
> Not looking for in-depth technical replies... I'd merely like to better
> understand the real-world meaning of such displayed accuracy figures.
>
> BTW, I'm a GPS newbie but am extremely satisfied with my 2610. I bought
> it based on the 67 user comments (almost unaminous praise) seen on the
> Amazon.com site.
>

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