Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Camp
t; > To: Bob Stewart <b...@evoria.net>; Discussion of precise time and frequency > measurement <time-nuts@febo.com> > Sent: Thursday, January 12, 2017 2:38 PM > Subject: Re: [time-nuts] General questions about making measurements with > time interval counter. > > Hi > &

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Stewart
com> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Sent: Thursday, January 12, 2017 5:22 PM Subject: Re: [time-nuts] General questions about making measurements with time interval counter. Bob, The minimal C code for (back-to-back or overlapping) ADEV is:

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Tom Van Baak
tewart" <b...@evoria.net>; "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Thursday, January 12, 2017 2:36 PM Subject: Re: [time-nuts] General questions about making measurements with time interval counter. The pesudo code for the Adev is qu

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Scott Stobbe
t; > > > Bob > > > > > > From: Bob Camp <kb...@n1k.org> > > To: Bob Stewart <b...@evoria.net>; Discussion of precise time and > frequency measurement <time-nuts@febo.com> > > Sent: Thursday, January 12, 2017 2:38 PM > >

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Stewart
.  Bob From: Bob Camp <kb...@n1k.org> To: Bob Stewart <b...@evoria.net>; Discussion of precise time and frequency measurement <time-nuts@febo.com> Sent: Thursday, January 12, 2017 2:38 PM Subject: Re: [time-nuts] General questions about making measurements with time

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Camp
on of precise time and frequency > measurement <time-nuts@febo.com> > Sent: Thursday, January 12, 2017 1:03 PM > Subject: Re: [time-nuts] General questions about making measurements with > time interval counter. > > Hi > > It varies from 5370 to 5370. You see a lot of p

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Stewart
ime-nuts@febo.com> Sent: Thursday, January 12, 2017 1:03 PM Subject: Re: [time-nuts] General questions about making measurements with time interval counter. Hi It varies from 5370 to 5370. You see a lot of plots that run out to 10 samples or less. Anything below 100 samples is risky in so

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Camp
t; > To: Bob Stewart <b...@evoria.net>; Discussion of precise time and frequency > measurement <time-nuts@febo.com> > Sent: Thursday, January 12, 2017 11:04 AM > Subject: Re: [time-nuts] General questions about making measurements with > time interval counter. > >

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Camp
frequency measurement <time-nuts@febo.com> > Sent: Thursday, January 12, 2017 8:27 AM > Subject: Re: [time-nuts] General questions about making measurements with > time interval counter. > > Hi > > There are a number of ways to improve the resolution (and accuracy) of yo

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Stewart
recise time and frequency measurement <time-nuts@febo.com> Sent: Thursday, January 12, 2017 8:27 AM Subject: Re: [time-nuts] General questions about making measurements with time interval counter. Hi There are a number of ways to improve the resolution (and accuracy) of your data with

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Bob Camp
Hi There are a number of ways to improve the resolution (and accuracy) of your data without spending big piles of cash. They have been discussed here on the list many times over the last few years. What I’m suggesting is that you dig into that ahead of taking data. You will dive into it

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-12 Thread Dr. David Kirkby (Kirkby Microwave Ltd)
On 12 January 2017 at 02:31, Bob Camp wrote: > Hi > Hi Bob > > The most basic issue you are going to run into is that your counter is not > high enough > resolution / accuracy to give you meaningful data for time intervals under > a few hundred > seconds. Is that true if I'm

Re: [time-nuts] General questions about making measurements with time interval counter.

2017-01-11 Thread Bob Camp
Hi The most basic issue you are going to run into is that your counter is not high enough resolution / accuracy to give you meaningful data for time intervals under a few hundred seconds. I would focus on improving on that part of things before I went off on a major “test everything”

[time-nuts] General questions about making measurements with time interval counter.

2017-01-11 Thread Dr. David Kirkby (Kirkby Microwave Ltd)
MY AIMS 1) Try to learn about the various statistical tests (ADEV, MDEV etc), and how best to compare oscillators, by making some measurements on various oscillators I have. 2) Investigate the short/medium term stability of the output of various bits of test kit. All are locked to GPS by