You can use a digital delay line to correct in hardware the PPS. The method is illustrated in the usual .PDF I always recommend: www.gpstime.com/files/tow-time2001.pdf
On Sat, Mar 31, 2012 at 3:26 PM, Martyn Smith <[email protected]> wrote: > Hello, > > I’m a bit new to GPS receivers. I’m reading all about sawtooth correction > of the 1 pps output signal, on the ilotus M12M or M12+. > > I understand that correction can either be hardware controlled or software > controlled. > > Does anyone make a low cost stand alone board to carry out this correction? > > I.E something that takes the raw 1 pps and serial data from the GPS > receiver and produces a cleaner 1 pps output? > > I’ve seen that the peak to peak jitter is reduced from something like 27 > ns to < 10 ns. > > Is this a reduction of just the jitter, or is the actual accuracy to UTC > also improved by this amount. > > Regards > > Steve Jones > _______________________________________________ > 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.
