Stefan,
Well, I have been sort of staying out of the recent discussions regarding
oscillator stability measurements, ADEV, etc., but here goes my two cents
worth. I hope it doesn't muddy the waters too much and is somewhat helpful.
There is a fundamental problem with trying to do ADEV (Alla
Hal Murray wrote:
>> The PM6681 does not appear to have support for measuring time
>> intervals in positive and negative directions at the same time. That
>> would limit the usefulness of this trick, it seems. Or is it just as
>> valid to use the opposite edge of one of the signals?
>
> Will a lo
> The PM6681 does not appear to have support for measuring time
> intervals in positive and negative directions at the same time. That
> would limit the usefulness of this trick, it seems. Or is it just as
> valid to use the opposite edge of one of the signals?
Will a long chunk of coax shift on
Hi Antonio,
no restoring jump happened within a couple of days from that jump. I think
it's permanent.
Unfortunately I don't have a date/time for this jump.
The best resource for dated graphical data is probably realhamradio's GPSCon
links, even though half of those links seem to have bee
hi Tom and Frank,
I am a member of NAWCC, and the Sydney Clockmakers Society.
cheers, Neville Michie
On 25/10/2008, at 6:59 AM, Thomas A. Frank wrote:
> Hi Carl;
>
> I am.
>
> Tom Frank, KA2CDK
>
> On Oct 24, 2008, at 9:57 AM, Carl Dreher wrote:
>
>> Hi,
>>
>> Just wondered how many people on thi
Thanks, Said.
What seldom happens to my tuning forks is similar to your
brown line, of course.
Do you have date and time of this beatiful jump?
Have you observed, by chance, a negative (restoring) jump at any time after
this jump?
(the sense of the latter question is that, if you observed a
res
Heinzmann, Stefan (ALC NetworX GmbH) wrote:
> The picket fence technique indeed seems like an interesting solution. The one
> thing that made me concerned is the problem of detecting missing data. The
> detection seems to be hardest when the frequency of the DUT is a submultiple
> of the picket
Hi Carl;
I am.
Tom Frank, KA2CDK
On Oct 24, 2008, at 9:57 AM, Carl Dreher wrote:
> Hi,
>
> Just wondered how many people on this list are also members of the
> Horological Sciences chapter of the NAWCC?
>
> Carl Dreher
>
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time-nuts mailing list --
Hi Antonio,
the X axis is in 6 second steps. This jump happened after days of perfect
lock. Happened out of the blue, random (Poisson as someone had said? :)
distribution.
>From what I can see from the very interesting email thread, other users have
seen their GPSDO's, Pendulums, etc jump
I'd say before the end of the year. If you have any suggestion on the specs
I am all ears.
Cheers,
Javier
On Fri, Oct 24, 2008 at 6:26 AM, Jim Palfreyman <[EMAIL PROTECTED]> wrote:
> I like it. When is it ready?
>
> Jim
>
>
> 2008/10/22 Javier Serrano <[EMAIL PROTECTED]>
>
> > Dear nuts,
> >
> >
For those of us that use Firefox (and possibly some others), you can get to
it via the web with this URL:
ftp://[EMAIL PROTECTED]:[EMAIL PROTECTED]/
-Bob
On Fri, Oct 24, 2008 at 8:01 AM, wje <[EMAIL PROTECTED]> wrote:
> I've finished my degausser replacement. I've put a zip file with
> schemati
Hello Genst,
Anybody has info/datasheet, pinout / 7 pin / of this Trimble Rodal
Antenna, P/N 240066-32..?
Thanks for your help.
Rgds Ernie.
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I've finished my degausser replacement. I've put a zip file with
schematics, pcb layout, a picture of the finished unit, etc. on my ftp site.
Note that you have to use ftp to get to it, not a web browser:
ftp ftp.quackers.net
login: [EMAIL PROTECTED]
Use the login name exactly as given. Just hi
Hi,
Just wondered how many people on this list are also members of the
Horological Sciences chapter of the NAWCC?
Carl Dreher
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The picket fence technique indeed seems like an interesting solution. The one
thing that made me concerned is the problem of detecting missing data. The
detection seems to be hardest when the frequency of the DUT is a submultiple of
the picket fence frequency, which is what your examples amount
Heinzmann, Stefan (ALC NetworX GmbH) wrote:
> So you are proposing to do a kind of simulated time stamping by using a
> reference PPS signal and measure the time distance between the reference edge
> and the edge of the DUT? Nice idea, I'd probably need to do some math on the
> result to convert
>
> On Fri, 2008-10-24 at 11:20 +0200, Magnus Danielson wrote:
>
>> Besides, if Tom sent the question to Staffan, then it will be a little
>> while since he is on vacation.
>>
>> Björn has a PM6681, he can actually TRY IT. :)
>
> But I lack a GPIB solution to record any measurement series... :-(
So you are proposing to do a kind of simulated time stamping by using a
reference PPS signal and measure the time distance between the reference edge
and the edge of the DUT? Nice idea, I'd probably need to do some math on the
result to convert it to a proper timestamp, but that shouldn't be too
On Fri, 2008-10-24 at 11:20 +0200, Magnus Danielson wrote:
> Besides, if Tom sent the question to Staffan, then it will be a little
> while since he is on vacation.
>
> Björn has a PM6681, he can actually TRY IT. :)
But I lack a GPIB solution to record any measurement series... :-(
--
Bjö
Heinzmann, Stefan (ALC NetworX GmbH) wrote:
> Thanks, Tom!
>
> Apart from the specifics with TimeView, how does one go about measuring ADEV
> with a counter that does have a dead-time? Are there
> tricks that can be played, either with a special measurement setup or with
> some data postprocessi
Along the same lines (and this may have come up before), is there a good
Allan-deviation application for Windows that talks to the 5370B?
-- john, KE5FX
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Behalf Of Heinzmann, Stefan (ALC NetworX GmbH)
> Sent: Friday
Stefan,
When you have your question about ADEV & the PM6681 answered, would
be so kind as to share the answer with us?
Pete Rawson
-Original Message-
>From: Tom Duckworth <[EMAIL PROTECTED]>
>Sent: Oct 23, 2008 10:19 PM
>To: 'Discussion of precise time and frequency measurement'
>Subjec
Thanks, Tom!
Apart from the specifics with TimeView, how does one go about measuring ADEV
with a counter that does have a dead-time? Are there tricks that can be played,
either with a special measurement setup or with some data postprocessing? Or
with two counters that are somehow made to coope
Hello Neville,
interesting info! Yes, chemical processing apparently can "fix" jumpy
crystals. Wish we had more crystal processing experts post their experience
here.
It is interesting to note that some of these jumps on the order of say 0.1
parts per billion or less are probably caused b
Björn
The pair in the middle look like TNC (BNC with thread instead of bayonet).
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Björn Gabrielsson
Sent: 22 October 2008 23:26
To: Brian Kirby
Cc: time-nuts
Subject: Re: [time-nuts] OT: connector identif
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