Hi Assuming Mark’s data is at 10 MHz and 1 second then 0.0002 Hz is 20 ppt. That number can be compared directly against data presented for a variety of other devices. By far the best way to do the comparison would be to take data over a range of tau’s and look at the resulting plot. That way you can be reasonably sure that there isn’t something weird going on at one or another tau.
Bob > On Sep 4, 2019, at 1:07 AM, Christoph Kopetzky <[email protected]> wrote: > > This would be an interesting compare. > I want to compare the FA1 and the TSA3011 if I am back in office and have > both in my hands... > But I really do not want to buy unnecessary tools... So if someone has done > this it would be nice to read about that. > > Mark, do you have also a TICC? > > best regards > > Chris > --- > 'Everything should be made as simple as possible, but not simpler.' -- Albert > Einstein > > Am 03.09.2019 um 21:21 schrieb Jerry Hancock: >> How would this compare to the TAPR TICC Rev D? The one that has the arduino >> base? About half the price I see. >> >> Regards, >> >> Jerry >> >> >>> On Sep 2, 2019, at 5:50 AM, Christoph Kopetzky <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Hi Mark, >>> >>> interesting post. >>> So is the FA1 compatible with the TimeLab or Stable32 software? >>> And could I do phase noise measurements with it like the TimePod? >>> >>> >>> Chris >>> >>> Am 30.08.2019 um 22:57 schrieb Mark Sims: >>>> (Hopefully this is not a duplicate post... hotmail has been having issues) >>>> >>>> The FA1 is a small, USB powered frequency counter. You supply it with a >>>> 10 MHz reference and an input frequency of 1 .. 80 MHz. It outputs a >>>> text string of the measured frequency every second. They cost around $80 >>>> .. $120. >>>> >>>> Apparently there is a PLL inside... the text string has a "PLL unlock" >>>> flag. There is no info on how it works and I have not opened mine up. >>>> >>>> I did a simple noise test on one where the input and ref clocks were from >>>> a Tbolt. It looks like the measurement noise is around +/- 0.0002 Hz. >>>> >>>> Lady Heather can now read it. Attached is a screen capture of the noise >>>> test. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> <mailto:[email protected]> >>>> To unsubscribe, go to >>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>>> and follow the instructions there. >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> <mailto:[email protected]> >>> To unsubscribe, go to >>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>> and follow the instructions there. >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
