You have to spend good money to get a GPS receiver capable of calculating it's time and/or position more than once per second. I am not aware of that being done for timing applications, but it is available for navigation GPS receivers, such as those used to track race cars (for a race car, one second is an eternity). I have seen navigation receivers capable of 10 fixes/second, I am sure there are better ones yet. They cost a lot of money.
Didier KO4BB On Mon, Jan 30, 2012 at 4:31 AM, Azelio Boriani <[email protected]>wrote: > OK, now I know and wonder if other GPS receivers that have frequency > outputs behave in this manner. For example the Motorola 100PPS output, the > uBlox 800Hz, the Navsync variable frequency output and so on. It is > possible to compute solutions from GPS satellite at greater than 1 second > rate so the phase of these signals should be adjustable at a rate that > could minimize the phase jump... this is only my opinion, not the real > possibility. > > On Mon, Jan 30, 2012 at 11:15 AM, Bruce Griffiths < > [email protected]> wrote: > > > The 10kHz is continuous but its phase jerked on the second. > > The new phase is held until the next jerk. > > > > Bruce > > > > > > Azelio Boriani wrote: > > > >> Ah, is it a burst of 10KHz once a second? I don't have a Jupiter-T and > I'm > >> a PPS-type discplining fan but I thought it was a continuous 10KHz. > >> > >> On Mon, Jan 30, 2012 at 10:33 AM, Attila Kinali<[email protected]> > wrote: > >> > >> > >> > >>> On Sun, 29 Jan 2012 00:50:35 -0600 > >>> Ray Xu<[email protected]> wrote: > >>> > >>> > >>> > >>>> For those who have experience using the Jupiter T GPS: > >>>> I have bought this > >>>> > >>>> > >>>> > >>> http://www.ebay.com/itm/**Navman-jupiter-T-Tu60-GPS-Kit-** > >>> 1pps-10khz-GPS-Module-/**260790984470< > http://www.ebay.com/itm/Navman-jupiter-T-Tu60-GPS-Kit-1pps-10khz-GPS-Module-/260790984470 > > > >>> > >>> Ouch... For that price you get already a new LEA-6T, which is a state > of > >>> the art timing GPS receiver. Beside having the better sensitivity > >>> (more satelites in difficult conditions) it features also an frequency > >>> output that can go up to 10MHz (or 8MHz if you want low jitter). > >>> > >>> > >>> Attila Kinali > >>> -- > >>> The trouble with you, Shev, is you don't say anything until you've > saved > >>> up a whole truckload of damned heavy brick arguments and then you dump > >>> them all out and never look at the bleeding body mangled beneath the > heap > >>> -- Tirin, The Dispossessed, U. Le Guin > >>> > >>> ______________________________**_________________ > >>> time-nuts mailing list -- [email protected] > >>> To unsubscribe, go to > >>> https://www.febo.com/cgi-bin/**mailman/listinfo/time-nuts< > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > >>> and follow the instructions there. > >>> > >>> > >>> > >> ______________________________**_________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to https://www.febo.com/cgi-bin/** > >> mailman/listinfo/time-nuts< > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > >> and follow the instructions there. > >> > >> > >> > > > > > > ______________________________**_________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to https://www.febo.com/cgi-bin/** > > mailman/listinfo/time-nuts< > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
