On Friday 26 October 2007, Simon Arlott wrote: > On 26/10/07 18:57, Chuck wrote: > > the garmin gps installation is now permanent with properly run wires etc. now > > that it will not be changing, i need to go into 'calibration' time... > > > > 1. how long should i wait to consider it as stabilized as it will get? > > Mine seemed to be fine immediately... > > > 2. the time1 fudge factor is in relation to what? the system time? > > The refclock time. > > > 3. i assume i adjust the time1 factors to bring the offset as close to 0 as > > possible. > > Absolutely not leave time1 at 0, there's nothing accurate enough to calibrate it > further :P >
hmm... this is what i have so far from messing around. this keeps the offset for the gps clock in reasonable range or else it is skewed off by 230ms or so and there is always an X by it. i suppose it doesnt matter since the pulse (gps1) is always * and is usually within 100 us at worst, 5us at best. there seems to be a considerable change from poll to poll. it never settles down into a nice small range hardly varying as i expected it to do. server 127.127.28.0 minpoll 4 maxpoll 4 fudge 127.127.28.0 time1 -0.200 refid GPS server 127.127.28.1 minpoll 4 maxpoll 4 prefer fudge 127.127.28.1 refid GPS1 > -- > Simon Arlott > -- Chuck _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
