[time-nuts] Thunderbolt Rollover Testing

[Mark Sims]

Plus Trimble's usage is rather misleading...  you can do true overdetermined clock in either a static or moving environment... it properly requires more sats to be tracked than necessary to determine the time.   Position hold mode (and Trimble's overdetermined clock mode) requires a fixed location and can work with only one tracked sat,.   

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> I very much prefer the “position hold” term for what it is doing compared to Trimble’s “overdetermined” description. Overdetermined suggests that it has more information than it needs to come up with the time.