Reply to "Defining the endpoints of a cal course"

justinkuoCertifier

The discussion on GPS accuracy may be a bit of topic, but got me wondering about my personal GPS. I use an older Garmin GPSMAP 60CSx. Garmin advertises an accuracy of <5 meters, typical.

GPS accuracy:

* Position: <10 meters, typical
* Velocity: .05 meter/sec steady state

DGPS (WAAS) accuracy:

* Position: <5 meters, typical
* Velocity: .05 meter/sec steady state

If I had only the GPS coordinates for an end point, I may need to borrow Jay's metal detector.

Google Earth may have a somewhat better accuracy. It displays coordinates to 6 places to the right of the decimal point. (ie. 41.680370 -71.127366). That implies an accuracy of about 11 cm. (where 1 degree = 1 nautical mile)

Thank you. -- Justin

11/15/105:16 AM

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