Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-10 Thread Hans Holzach
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Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-10 Thread Hans Holzach
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Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-09 Thread Tom Van Baak
leapsecond.com/tools/ directory. /tvb - Original Message - From: "Hans Holzach" To: Sent: Monday, July 08, 2013 10:03 PM Subject: Re: [time-nuts] Question about effect of sample interval on ADEV >> FYI: I tend to record all serial (RS232/GPIB/USB/LAN) data fro

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-08 Thread Hans Holzach
> FYI: I tend to record all serial (RS232/GPIB/USB/LAN) data from counters, > analyzers, receivers, environmental sensors with a precision MJD prefix. This > allows both tight correlation among different instruments in the lab and also > allows ADEV-like tools to estimate, and then gradually ref

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-08 Thread Tom Van Baak
of precise time and frequency measurement'" Sent: Monday, July 08, 2013 2:17 PM Subject: Re: [time-nuts] Question about effect of sample interval on ADEV > No prob! It's a complicated business. > > -- john, KE5FX > Miles Design LLC > > >> -Original Me

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-08 Thread John Miles
requency measurement > Subject: Re: [time-nuts] Question about effect of sample interval on ADEV > > John, > > After a night's sleep and a rereading of your post I finally realized > what I was doing wrong. I did not understand the the role of the > sampling interval se

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-08 Thread Robert Darby
Volker, Silly mistake, I was changing the sample interval in the acquire menu of TimeLab and it did not match the 5370B. When I changed the display rate control and used the monitor command to set the sampling interval as directed by John all was right with the world. Tom, What did you do

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-08 Thread Volker Esper
Bob, Sorry, I'm not sure, if I've understood the issue - what exactly did you wrong? Thank you Volker Am 08.07.2013 14:48, schrieb Robert Darby: John, After a night's sleep and a rereading of your post I finally realized what I was doing wrong. I did not understand the the role of the

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-08 Thread Robert Darby
John, After a night's sleep and a rereading of your post I finally realized what I was doing wrong. I did not understand the the role of the sampling interval setting and the display rate setting on the 5370. When I follow the process below the results are totally consistent. Sorry to tak

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Mark Spencer
" ,    "'Discussion of precise     time and frequency measurement'"    Subject: Re: [time-nuts] Question about effect of sample interval on     ADEV Message-ID: <0b8501ce7b5a$47ea8cf0$d7bfa6d0$@miles.io> Content-Type: text/plain;    charset="us-ascii" This won't

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Robert Darby
-nuts] Question about effect of sample interval on ADEV Thanks to all who responded. I didn't phrase my question very well I'm afraid. The periodic noise/beat note issue is what lead me to try a different sample interval. Previously I had always let TimeLab set the sample interval (about .0

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread John Miles
> -Original Message- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > Behalf Of Robert Darby > Sent: Sunday, July 07, 2013 3:33 PM > To: time-nuts@febo.com > Subject: Re: [time-nuts] Question about effect of sample interval on ADEV >

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Robert Darby
Thanks to all who responded. I didn't phrase my question very well I'm afraid. The periodic noise/beat note issue is what lead me to try a different sample interval. Previously I had always let TimeLab set the sample interval (about .07s for the5370B). I was surprised by the difference in th

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Magnus Danielson
On 07/07/2013 11:38 PM, John Miles wrote: This won't be a sampling-interval issue. It sounds like a beat note. To diagnose it, you can use the 5370B in frequency mode (with its internal timebase) to measure the frequency of the 5065B and the FTS 1050B. Subtract the two readings, then see if t

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread John Miles
This won't be a sampling-interval issue. It sounds like a beat note. To diagnose it, you can use the 5370B in frequency mode (with its internal timebase) to measure the frequency of the 5065B and the FTS 1050B. Subtract the two readings, then see if the reciprocal of the frequency difference co

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Magnus Danielson
Bob, On 07/07/2013 09:27 PM, Robert Darby wrote: This is a question that has probably been addressed on the list and in various texts but I've been unable to find an answer that I can fathom so here's a request for some info about the behavior of TimeLab (and probably all other similar programs)

Re: [time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Tom Van Baak
y, July 07, 2013 12:27 PM Subject: [time-nuts] Question about effect of sample interval on ADEV > This is a question that has probably been addressed on the list and in > various texts but I've been unable to find an answer that I can fathom > so here's a request for some info ab

[time-nuts] Question about effect of sample interval on ADEV

2013-07-07 Thread Robert Darby
This is a question that has probably been addressed on the list and in various texts but I've been unable to find an answer that I can fathom so here's a request for some info about the behavior of TimeLab (and probably all other similar programs). I have been trying to find the source of some