[time-nuts] over-determined clock solution

[Mark Sims]

Trimble can operate in a 3D positioning operation mode that works that way.   But their "overdetermined clock" mode is what most people call "position hold" mode.  Set the receiver to "overdetermined clock", and the lat/lon/alt coordinates it sends never change.

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As far as I know, it simply means that there are more satellites in view than needed for a fully accurate time to be determined. If it needs four sats to come up with a valid location plus time, it has five or more.