NavList:

"It is possible the android MEMS are associated with a GPS ellipsoidal height...which is artificial reality. I bet you could get a more accurate reading from Davis Mark 3 and a mud puddle. ha ha"

:)
I realize you were kidding, but just in case anyone else is wondering... the accelerometers in most modern smartphones (there's a lot of variety, so no absolute guarantee here) make very nice digital levels. They function much like other digital levels and they are not connected in any way with the GPS chipset or its model assumptions. Their accuracy is no better than a tenth of a degree on single measurements, but they may do better when averaged over a couple of minutes. While they're good levels, you can also read and post to NavList from the same smartphone device. I have not yet figured out how to do that with a Davis Mark 3, with or without optional mud puddle. ha ha. :)

-FER
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