[time-nuts] TICC reference source
If you are using the TICC to measure the time interval between two signals then the reference clock does not need to be all that good (the gooder the better, though). But if you are using the TICC to measure one or two independent sources, then your reference clock should be as good as you can supply. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] TICC reference source
Thank you! This is a great manual for time interval measurement. I'll go with 10811. --- (Mr.) Taka Kamiya I'm stuck in a wormhole Hello, worms! On Friday, June 14, 2019, 12:28:26 AM EDT, Anders Wallin wrote: page 48 here has some notes on time-base error:http://leapsecond.com/hpan/an200-3.pdf for time-interval measurement the number of digits matter. if you keep time-intervals 'small', say 123.45 ns (probably can't resolve much below 10ps anyway with a TICC) then a time-base with only about 5-6 digits of stability is sufficient - even if you are measuring two good H-masers against each other.The OCXO may have better short-term stability compared to the Rb. Anders On Fri, Jun 14, 2019 at 5:01 AM Taka Kamiya via time-nuts wrote: I am building a TICC-IN-A-BOX. Basically TICC + TADD-2 mini + reference oscillator. Initially, I was going to use HP11811-6011 but I am also considering PRS10. (I already own both) While I believe 11811 is sufficient, PRS10 can be kept off and reaches usable state (physics lock) faster, while 11811 has to be kept on or otherwise usable stability will be few hours. I do have a house clock but since it can be a subject of measurement, I want my TICC-IN-A-BOX to have an independent clock. Am I thinking correctly? --- (Mr.) Taka Kamiya I'm stuck in a wormhole Hello, worms! ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] TICC reference source
page 48 here has some notes on time-base error: http://leapsecond.com/hpan/an200-3.pdf for time-interval measurement the number of digits matter. if you keep time-intervals 'small', say 123.45 ns (probably can't resolve much below 10ps anyway with a TICC) then a time-base with only about 5-6 digits of stability is sufficient - even if you are measuring two good H-masers against each other. The OCXO may have better short-term stability compared to the Rb. Anders On Fri, Jun 14, 2019 at 5:01 AM Taka Kamiya via time-nuts < time-nuts@lists.febo.com> wrote: > I am building a TICC-IN-A-BOX. Basically TICC + TADD-2 mini + reference > oscillator. > Initially, I was going to use HP11811-6011 but I am also considering > PRS10. (I already own both) While I believe 11811 is sufficient, PRS10 > can be kept off and reaches usable state (physics lock) faster, while 11811 > has to be kept on or otherwise usable stability will be few hours. > > I do have a house clock but since it can be a subject of measurement, I > want my TICC-IN-A-BOX to have an independent clock. > Am I thinking correctly? > --- > (Mr.) Taka Kamiya > I'm stuck in a wormhole Hello, worms! > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
[time-nuts] TICC reference source
I am building a TICC-IN-A-BOX. Basically TICC + TADD-2 mini + reference oscillator. Initially, I was going to use HP11811-6011 but I am also considering PRS10. (I already own both) While I believe 11811 is sufficient, PRS10 can be kept off and reaches usable state (physics lock) faster, while 11811 has to be kept on or otherwise usable stability will be few hours. I do have a house clock but since it can be a subject of measurement, I want my TICC-IN-A-BOX to have an independent clock. Am I thinking correctly? --- (Mr.) Taka Kamiya I'm stuck in a wormhole Hello, worms! ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
