On Mon, Jan 30, 2012 at 9:47 AM, Mark Sims <hol...@hotmail.com> wrote: > > The Tbolt does not have any sawtooth error or corrections. Its' GPS receiver > LO is > generated from the 10 MHz oscillator. That's what makes it the best GPSDO > out there.
Inside "Packet 0x8F-AC" (supplemental timing packet) there are two data fields named "PPSOset and 10MHZOset. Each is a 4-bit signed integer with units of nanoseconds for PPSOset and in pars per billion for 10MHZOset. They are used to report an estimate of the PPS and 10MHz signals offset from UTC. Typically the values reported are not constant and in the single digit range. (I'm reading from section A.10.31 of the Thunderbolt manual.) This is what I meant when I said "sawtooth". Maybe the wrong term. But I think theses numbers can be used in a controller. Chris Albertson Redondo Beach, California _______________________________________________ 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.