Hi

> On Mar 6, 2017, at 1:38 AM, Mark Sims <hol...@hotmail.com> wrote:
> 
> Does it have a saved/surveyed position?  With a saved position you can 
> reasonable time performance with 1 sat.   Without a saved position all bets 
> are off,  there is no way for the receiver to determine the 
> receiver/satellite clock difference.
> 
> Trimble reports that the device is in "over-determined clock" mode if that is 
> how it is configured.  Even if it is in "over-determined clock" mode the 
> receiver may not have enough data to do anything effective.   Trimble's 
> overdetermined clock mode is basically a "position hold" mode.

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.

Bob

> 
> ----------------
> 
>> I just re-checked this with a Resolution-T, and it does go into OD mode with 
>> all but 1
> SV masked from cold restart using a real SV.
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