Re: [time-nuts] over-determined clock solution

In message , Mark Sims writes: >All timing receivers (including Trimble) calculate an overdetermined >clock solution if more than 4 sats are being tracked (and the signal >meets their TRAIM quality level). But, again, in Trimble-speak,

[time-nuts] over-determined clock solution

All timing receivers (including Trimble) calculate an overdetermined clock solution if more than 4 sats are being tracked (and the signal meets their TRAIM quality level). But, again, in Trimble-speak, "overdetermined clock mode" is what most manufacturers call "position hold" mode.

Re: [time-nuts] over-determined clock solution

Thanks all for the info about the GPS over-determined clock solution, helps me much. Bill's suggestion to internet search the term absent the hyphen turns up numerous hits as well. Steve, K8JQ On 6/25/2016 2:10 PM, Bill Hawkins wrote: Try overdetermined as one word. Also include GPS in the

Re: [time-nuts] over-determined clock solution

On Sat, 25 Jun 2016 22:00:25 -0400, time-nuts-requ...@febo.com wrote: > > Message: 3 > Date: Sat, 25 Jun 2016 10:07:30 -0400 > From: Steve <stev...@suddenlink.net> > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Subject:

Re: [time-nuts] over-determined clock solution

In this receiver mode all the satellites are used to compute the timing solution. See page 80 of the 2012 Thunderbolt-E manual: This mode is available when the position of the antenna is known and is stationary. Timing receivers usually

Re: [time-nuts] over-determined clock solution

Try overdetermined as one word. Also include GPS in the search string. Google has many hits. In timing receivers, once the position has been determined the receiver switches to using timing information from all of the satellites that it can see. Like the man with too many clocks, the clock time

Re: [time-nuts] over-determined clock solution

On 6/25/2016 9:07 AM, Steve wrote: > The phrase "over-determined clock solution" is used in the Trimble > Thunderbolt user manual in describing operation of the Thunderbolt GPS > receiver. The manual does not discuss the phrase in any detail, > appearing to assume the reader understands its

[time-nuts] over-determined clock solution

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. As far

[time-nuts] over-determined clock solution

It is basically what most people call "position hold mode" where the receiver has known (and accurate) fixed coordinates. With lat/lon/alt known, it can solve for time with just one satellite visible. Or, if more than one sat is visible, its time solutions can be more accurate because noise

Re: [time-nuts] over-determined clock solution

stev...@suddenlink.net said: > The phrase "over-determined clock solution" is used in the Trimble > Thunderbolt user manual in describing operation of the Thunderbolt GPS > receiver. > What does "over-determined clock solution" mean? You are trying to solve for X, Y, Z, and T. (or the polar

Re: [time-nuts] over-determined clock solution

Hi 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. If it has five but is not happy with the location solution (still in

[time-nuts] over-determined clock solution

The phrase "over-determined clock solution" is used in the Trimble Thunderbolt user manual in describing operation of the Thunderbolt GPS receiver. The manual does not discuss the phrase in any detail, appearing to assume the reader understands its meaning. An internet search on