Re: [time-nuts] Question about SA.33 Rb clock

Hi, On 10/12/2017 06:06 PM, Tom Van Baak wrote: Your use of the phrase "real cesium" may be the source of your confusion. The SA.3x uses rubidium and the SA.4x uses cesium. They are all real atoms. These modern MAC / CSAC atomic standards compete with high-end DOCXO quartz oscillators with

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

Hi Martin, Thanks for this. Rob -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Martin Burnicki Sent: 11 October 2017 18:17 To: time-nuts@febo.com Subject: Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time Hi Rob, Rob

Re: [time-nuts] Question about SA.33 Rb clock

Hi Hui Zhang, > in the paper CSAC was described that it is based on CPT technology > My question is the SA.3x(or SA.2x) also used this method? Yes. Here's another good read; and it also includes photos of the inside of your SA.33:

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

>> These days the speaker is almost the last usable interface for this. > > ….. and the mic input is one of the few inputs left to feed “events” into. Yes, and by connecting the speaker to the mic and issuing a pulse through the speaker you can estimate the latency of the OS. It should act like

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

Hi > On Oct 12, 2017, at 5:11 AM, Poul-Henning Kamp wrote: > > > In message > , > Mark Sims > writes: > >> The next release of Heather has an audible tick clock mode where >> it

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

Hello time-nuts folk, Thanks for all the replies, I see now that it is nothing to concern myself with, and my curiosity is satisfied, much appreciated, you are true time experts! :) Good to see Lady Heather continues to be updated, thanks Mark. on 12/10/2017 12:36 you wrote: >

Re: [time-nuts] NTP linked PC clock is slightly ahead of Lady Heather GPS time

In message , Mark Sims writes: >The next release of Heather has an audible tick clock mode where >it ticks at hh:mm:ss.000 This can be used to set your watch more >accurately, etc. Consider the potential

[time-nuts] Fast Rise/Fall-time pulser

In our activities in radio astronomy, the need for precise time calibrationwe use fast gates like HMC672LC3C from Hittite. (Has perhaps been superseeded by newer devices) My 5 cents Ulf Kylenfall - SM6GXV ___ time-nuts mailing list --