Thanks Chris. It seems such a logical feature to have, I would think it would have been included perhaps by a serial command. My old CS clocks have this feature though I have never taken the time to sync them.
Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Albertson Sent: Tuesday, January 24, 2012 12:34 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Determination of the placement of the first pps On Mon, Jan 23, 2012 at 5:50 PM, J. L. Trantham <[email protected]> wrote: > Is this, in any way, related to the fact the Earth has a Moon? > > is there a way to > 'sync' the 1 PPS output of an FE-5680A to an external signal, such as > a GPS receiver or TBolt? I would think that might be possible given > their original purpose. The 1PPS is not in the units specs. It is just by luck that it works. However we could adjust the phase of the 1PPS by running the unit fast or slow for some period of time and then going back to exact 10MHz. But that method could take a LONG time, like tens of thousands of seconds. Better I think to test the phase and if it is "off" by more than say, 0.01 second to just power the unit off and restart and see what luck gives you. I bet 100 power cycles is faster than moving the phase by 0.5 seconds. Maybe the answer is to wire up a few decade divers and divide the 10MHz to 1pps yourself. Thenyou can let a known good PPS reset your counters and get the phase correct instantly -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
