[time-nuts] I've been thinking about a GPS receiver experiment
k8yumdoober at gmail.com
Thu Oct 26 00:24:11 UTC 2017
What "naughty schoolboy"? How else is one supposed to learn feedback
On Wed, Oct 25, 2017 at 6:30 PM, Mark Sims <holrum at hotmail.com> wrote:
> > No, you set up an oscillator so that is why you have that problem.
> I hooked the two rubidiums together just to see what would happen. It
> pretty much did what I expected... chaos... the time-nut equivalent of a
> naughty schoolboy putting a microphone up to the speaker of the public
> address system. I't's a tough job, but somebody gotta do it ;-)
> > No, not really. The rubidium would be the real hold-over clock.
> Symmetricom calls the disciplining state where it can't lock to the 1PPS
> signal the "holdover" state. It's sort of like a GPSDO holdover state.
> Their discipline firmware does let you set the time constant and damping
> values. I tried a little playing around with them, but never found any
> settings that worked consistently well with the LEA-5T.
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