Re: [time-nuts] GPSDO and PPS measurement precision

2016-06-03 Thread Attila Kinali
On Fri, 3 Jun 2016 18:23:22 +0200 Lars Walenius wrote: > Using Tom van Baak´s GPSDO simulator is very informative as it can limit the > TIC resolution. Oh.. right. I haven't thought about that... I need to see what I can hack up using that.

Re: [time-nuts] GPSDO and PPS measurement precision

2016-06-03 Thread Lars Walenius
gt; Ämne: Re: [time-nuts] GPSDO and PPS measurement precision Hej, Using Tom van Baak´s GPSDO simulator is very informative as it can limit the TIC resolution. Shera´s design is much more complicated than the 42ns resolution as it depends on the noise in the 24MHz oscillator. With an oscillator

Re: [time-nuts] GPSDO and PPS measurement precision

2016-06-03 Thread Lars Walenius
10ns eq. resolution all times? With a better oscillator it might have a ”hanging bridge” now and then. Lars Från: Attila Kinali<mailto:att...@kinali.ch> Skickat: den 3 juni 2016 18:01 Till: Discussion of precise time and frequency measurement<mailto:time-nuts@febo.com> Ämne: [time

[time-nuts] GPSDO and PPS measurement precision

2016-06-03 Thread Attila Kinali
Moin, With all the talk about GPSDOs going on in the last couple of months, I started to wonder how much precision in the measurments is actually needed. On one hand, we have the old GPSDO designs, like Shera's, that offer a resolution in the 40ns range. On the other hand, we have modern designs,