Thanks, Harry, I already had got this info from this list, but had trouble
locating the jumper. The manuals seemed ambiguous, and I didn't find anyone who
actually made the change. May you help? Anyway, now my programs are MATE/CIIL
...
Antonio I8IOV
> You can switch the mode to standard langu
In my experience limited to two units, the 04E works very well, and I've been
prudent claiming an aging of one part in 10E10 per day. I suggest to check your
unit. My reference was Rb (LPRO). They are both 02M.
The 02M has a tag on the left side looking from the front. If the tag was lost,
there
I have two 1992, and actually one has to terminate the output to see the real
waveform.
They have both the 04E option, that I believe is a nice one. In long term
measurements, I've found that mine have an aging rate in the range of 1x10E-10
per day, or better (compared to Rb). The crystal is cut
In order to simplify the project, and given that I wouldn't need to distinguish
what source the noise comes from, I could use only S1 and X sources. And here
is
my last question. If I don't lock the sources to one another (say two HP
10811),
what is the unconvenience? An additional signal in t
I use since several years a NI rs-232 to GPIB converter
(RS-232CT), and old laptops running DOS and my own QBasic
programs. I'm happy with this, as usually I read also
temperature and atmospheric pressure along with
frequency/period, and store all the data in a single file.
If your 1992 is a 02M
On Mon, 17 Aug 2009 23:18:58 +1200 Bruce Griffiths wrote:
> Steve Rooke wrote:
> > 2009/8/17 Bruce Griffiths :
> >
> >> iov...@inwind.it wrote:
> >>
> >>> Please, how do time-nuts measure phase noise? What may be a minimal setup
Please, how do time-nuts measure phase noise? What may be a minimal setup whit
recording capability?
Thanks,
Antonio I8IOV
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
an
Surrounded by a "ledge (?)", or maybe better said, surrounded
by a cornice (or frame).
Sorry for my limited English.
Bye,
Antonio I8IOV
> Sorry, don't get "ledged". What do you mean?
>
> Jim
>
> 2009/8/4 iov...@inwind.it
>
> > The
The reason that was known to me is that at 10:10 the manufacturer's logo looks
like "ledged".
Antonio I8IOV
> Excuse me for asking a non-hardware question, but I'd like to know
> the origins of the time 10:10 being shown on clocks and watches in
> advertisements for same.
>
> The one that tipped
I would add to this scenario the solution I've used for many years,
the AD12 card shown at about mid page at:
http://www.micromed.it/Elettronica/schede.html
It is a 12 bit + sign, 8 single ended or 4 differential channels,
AD converter with RS232 interface. Resolution is 1 mV, conversion
time 8
On July 25, 2009 don.key at ntlworld.com wrote
>The second one would not lock within 15 minutes, so I returned it (to China)
>for a replacement. As I didn\'t have a heatsink, I didn\'t want to leave it
>any longer. Besides, if it doesn\'t lock within 5 minutes, then I assume it
>is faulty. Inst
on July 10 2009 tvb wrote:
> Hi Said & Tom,
>
> The below url links some "low-g"-osc papers.
>
>http://www.freqelec.com/tech_lit.html
>
>
Antonio, you may want to read them - for additional insights
into your eclipse project.
/tvb
Tanks Tom and all for the discussion a
You are right, Tom, there are two mixed topics.
On the on-topic subject, instead of making tests to measure the frequency
dependence on orientation, It would be much more interesting looking at
possible ADEV dependences on orientation, particularily for small tau (the
bottom of the curve). I can
I have another reading key.
When the manufacturer publishes the specs of its crystals, it
alrady took into account all of the possible known variables,
some of them very tiny such as dependences on orientation
(which do exist), so freeing the assembler (and the end-user)
from caring of.
(Anyway,
I had the same problem with a Racal 1992 and a NI GPIB to RS232.
Syncerely I'm now pleased that the problem was not only of
mine :-). In my case sometimes the glitches took two adjacent
readings (even if with different values), but I was sampling every 10 seconds,
so my probality to get ones was
difference for the
> -60111.
>
> - Chad.
>
>
>
> On Wed, Jul 8, 2009 at 10:27 AM, iov...@inwind.it wrote:
>
> > Dear all,
> >
> > does anybody out there know the orientation of the crystal faces relative
> > to the outer case in a 10811-6011
Has anybody locked to an LPRO a 10811-60111 in place of the LPRO internal
crystal? Any advices?
Thanks,
Antonio I8IOV
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and fo
Dear all,
does anybody out there know the orientation of the crystal faces relative to
the outer case in a 10811-60111?
(The sense of the question is that we are considering building a 3-axis
apparatus for gravity-related tests. Note, based on our tentative modelization,
crystals are not reque
Hi Steve,
for the meaning of jump we are accepting here I would have seen a more ripid
rising slope, butwho knows?
I would ask you a favour. I would be very pleased to see your Z3805 traces for
the week centered approx on July 22 02:30 UT. There will be a total solar
eclipse on the Pacific
James Lux wrote:
> Ah.. That's easy.. Pretty much every satellite in orbit derives its transmit
> frequency from a crystal oscillator, either a TCXO or a OCXO. So all you
> have to do is pick a LEO satellite that is easy to receive and measure the
> transmitted frequency, and that is at a frequen
Magnus Danielson wrote:
> Do read the article I referred to on aging. I think that any
> gravitational issues during the eclipse event is far less than the
> effect of sudden cooling, loss of sunlight. Does the ionspheric TEC
> change drastically? You need a good L1/L2 GPS receiver for that.
>
Thanks all.
Let's explain why I would like to look at orbiting crystals.
In brief, along with some friends of mine, I am carrying some
experimental work in the field of gravitational anomalies, and
tests with vibrating matter are part of this work.
This field of research has a background also in
Time-nuts,
this post wouldn't be merely speculative, I have an actual
interest in knowing if what I'm going to ask is possible.
As it has already been discussed here, crystals may jump in
frequency. If I recall, about 20% of good quality crystals are
prone to jumping, but a crystal that used to
These pictures could suggest an idea:
http://fotoalbum.alice.it/iovane/LPRO
Antonio I8IOV
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Perfect since I discovered it two months back, the online plot is no longer
updated since this morning.
http://resco.ucol.mx/Fury/gpsstat.htm
Does anybody know what's happening?
Thanks,
Antonio I8IOV
___
time-nuts mailing list -- time-nuts@febo.com
I've been using the Xcel built in FFT, and even under WinXP it
should be intentionally installed.
The path for doing so is (translating from Italian):
tools>additional components>analysis tools
then follow the instructions.
The function will be available as "data analysis", I don't
remember if und
101 - 126 of 126 matches
Mail list logo
