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Garmin eTrex Vista HCx WAAS accuracy.


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I've noticed that my eTrex Vista HCx has better actual accuracy with WAAS disabled.

 

When stationary, WAAS disabled yields a tighter grouping of track points with zero spurious points. With WAAS enabled, I get quite a few spurious points away from my actual position. Whether I'm stationary or moving, the displayed accuracy is essentially the same (~+/- 10 feet), but the real accuracy (judged by satellite images) is better with WAAS disabled.

 

Anybody else notice the same thing?

 

PS. I have the latest firmware (version 2.30) & have been careful to check the WAAS setting while gathering data.

 

PPS. I'm on the west coast of North America.

Edited by B R H
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