There was an interesting comment in the Lea-m8f datasheet, "In strong signal clear-sky applications the best time pulse consistency between neighbouring receivers is achieved when using a single GNSS because of the small time offsets between different GNSS systems. "
On Thu, Dec 22, 2016 at 8:01 AM John Haine <john.ha...@haine-online.net> wrote: > I was slightly imprecise in my previous posting about ubx timing modules > > and a few people have raised queries in the list or by email. > > > > What I should have said is that this module is designed as a precise > > low-noise /frequency /reference so it directly generates the 30.72 MHz > > needed in LTE infrastructure from a GPS disciplined VCTCXO. As I > > understand it, the usual 10 MHz output is digitally generated and > > jitters, so can't be used as a reference in high performance radio > > systems. One could use a phase-locked synth to multiply up from the 1 > > PPS signal but given the large ratio needed this is prone to generating > > its own noise. The M8F does it all internally and is therefore > > preferred if what you want is a low noise frequency reference, though > > its frequency may not be ideal if for example you wanted 10 MHz - you > > could get 10.24 MHz by dividing by 3 but 10 MHz is trickier. > > > > -- > > John Haine > > 9 Parkway > > Shudy Camps > > Cambridge > > CB21 4RQ > > > > 01799 584773 (T) > > 07841 322831 (M) > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
