We (that is my company) use the CW12-TIM (NMEA version) and its PPS wonders as usual, nothing different from a uBlox LEA-5T or the M12M.
On Thu, Mar 29, 2012 at 9:32 AM, Hal Murray <hmur...@megapathdsl.net> wrote: > > >> The sawtooth error on the Motorola M12+ is about +/- 25ns, while the > >> CW12-TIM has a sawtooth error of +/- 2 ns, so correcting for the > >> sawtooth error is not as critical with the CW12-TIM. > > > The first claim > >> The sawtooth error on the Motorola M12+ is about +/- 25ns > > is correct but are you absolutely sure that the second claim is correct > > too????? > > > It would mean a factor >10 improvement of the CW12-TIM against the M12 > which > > is hardly believeable. > > The 25 ns probably comes from period of the the free running clock they are > using. It doesn't seem unreasonable to me to get 10x better if they use a > GPSDO for the local clock so they can get the PPS edge right where they > want > it. > > > > -- > These are my opinions, not necessarily my employer's. I hate spam. > > > > > _______________________________________________ > 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.