it.
Regards,
Skip Withrow
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,
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is that even if
a card does go bad you can reconstruct a new one from the image of
version 1.3-2 of the software that is floating around. I have tried
it and it works.
If there is better insight into the operation of this receiver, or
best practices strategy I'm all ears.
Regards,
Skip Withrow
also switched to another computer running Windows-7. Always
behaves the same.
Any suggestions? Has anyone connected to the ftp server on the NetRS?
I have to believe that it works (if you get everything right) as
there are many of these units collecting remote data around the world.
Thanks,
Skip
, there are two part numbers for the NetRS, 45905 and 75905. My
thinking is that this may indicate the size of the flash card in the
unit (500MB vs 1GB). If anyone could confirm this it would be
appreciated.
Regards,
Skip Withrow
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on the Trimble website that will convert
in one step. It is called 'ConvertToRinex' - Trimble RINEX Converter
| Trimble Geospatial.
Have fun,
Skip Withrow
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Hello Time-Nuts,
I wanted to share what I have been working on for the last year, but
the story is way too long for a single time-nut post.
Tom Van Baak has graciously agreed to host the saga. You can read all
about it at -
http://leapsecond.com/u/skip/Sigma-Tau-MHM-pics.pdf
Enjoy!
Skip
is that you can't go wrong owning one (better long
term stability than OCXO, lots less cost and longer life than cesium).
I'll get off the soap box now. Thanks for the bandwidth.
Skip Withrow
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Hello Time-Nuts,
Just listened to the Marc Weiss presentation (Time Scale Ensembles in
Uncertain Environments) in the wiki (#20) and found it very worth the
time. Probably some other good information hiding in some of the
other presentations as well.
Regards,
Skip Withrow
.
Thanks,
Skip Withrow
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? Is the option there
somewhere or do I have to remake with an option?
I realize I'm about 5 years late to the party, hopefully there is
still some experience base still out there.
Thanks in advance,
Skip Withrow
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provide an independent source of time
to GPS. But don't we already have that with GLONASS, Beidou, and
Galileo?
Regards,
Skip Withrow
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the 5370B, but maybe it's time to switch to the TICC.
Any suggestions would be appreciated.
Thanks,
Skip Withrow
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.
Regards,
Skip Withrow
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2x10E-12. So you will never get anything better
than a good GPSDO anyway. Might as well stick with the GPSDO with a
good oscillator, unless you actually need some long-term holdover
performance.
Regards,
Skip Withrow
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.
Thanks,
Skip Withrow
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have used this technique for many years, but never for more than the
3 day default of LH. For all of you LH gurus out there, is there a
way to collect long-term raw data that can be processed by TimeLab or
Stable32?
Thanks in advance for any help.
Regards,
Skip Withrow
the physics package temperature. This puts added stress
on these components so then they tend to fail faster.
In the end, there is an optimum baseplate temperature that minimizes
failure rate (not eliminates it). You just have to do the best that
you can to determine what it might be.
Regards,
Skip
that places the DDS inside
the physics package loop and has a 60MHz OCXO. These units also have
a DB-9 interface with the serial interface on pins 8 and 9 (at 9600
baud).
Regards,
Skip Withrow
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Hello time-nuts,
Does anyone have a dead (but at least mostly complete) HP 5062C out
there that they would be willing to get rid of? I'm willing to ship
or pick up and pay some nominal cost for it.
Please contact me off list if so.
Thanks,
Skip Withrow
think I know the basic Gnd and Supply
pins. However, I don't know the supply voltage, or what any of the
other pins might be used for.
As always, all help appreciated. Thanks in advance.
Skip Withrow
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and just used the Novatel site. So, If anyone has
any Novatel information (manuals) perhaps uploading them to the KO4BB
archive would be useful. I know I have the OEM6 information and will
try to get it placed there soon. There is a directory for Novatel
(under GPS).
Regards,
Skip Withrow
with a butane torch and use pliers on the screws to
pull the bottom out.
If anyone has a dead one, I would be willing to attempt repair - but
no guarantees. They are nice oscillators.
Regards,
Skip Withrow
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questions I would be happy to try and answer.
Regards,
Skip Withrow
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exist today, and how many in running condition (and
Fedchenko and Riefler)?
There is something very satisfying about the tick-tock of a pendulum
clock, though I realize the Shortt's were not direct drive.
Regards,
Skip Withrow
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of please
contact me (off list).
Regards,
Skip Withrow
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slow.
Regards,
Skip Withrow
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any experience with these units and GPIB any help would
be appreciated.
Thanks in advance.
Skip Withrow
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and follow
have even had them work afterwards). Of course,
once you get the unit locked it still may take a considerable time to
reach thermal equilibrium and its ultimate stability.
Bottom line is - if the Cs oven is running, so is the clock on your tube.
Regards,
Skip Withrow
was just the first couple of
cycles of the reset. They did indeed slow down as the oscillator
drift slowed down, and after a few hours there were no more resets.
Regards,
Skip Withrow
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. If you have any
questions please contact me off list or via ebay.
Regards,
Skip Withrow
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happens when you are making a measurement
it kind of trashes things. I haven't tried seeing if LH can disable
disciplining (for use during measurement periods).
Regards,
Skip Withrow
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measurements/comparisons.
Regards,
Skip Withrow
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GPS receiver.
I suppose my next step is to look at the 10MHz output and see if the
jumps are there (I would bet they are). Then seeing if they go away
when LH is shut down.
I have included a LH screen shot to show these behaviors.
Regards,
Skip Withrow
by Harry Peters and keeps it pretty basic. I don't
think there was ever a commercial version of a variable volume unit,
but it makes a good research tool.
I hope to post again some months out when we have some data.
Skip Withrow
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I have an NTP server that uses a Trimble GPS receiver (Accutime 2000,
p/n - 39091-00, ROM 3.06) that has fallen prey to WNRO. Just
wondering if there are any Trimble (or other brand) receivers that
have TSIP serial comms that are available for a reasonable price? Any
help appreciated.
Skip
by less than a millimeter.
If it was easy - every time-nut would be doing it!
Do let me know if you come up with a solution.
Skip Withrow
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of course.
Regards,
Skip Withrow
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, but what I thought was a reasonable
offer was rejected especially considering the $48.50 shipping to the
U.S.
Thanks in advance for any help or pointers.
Regards,
Skip Withrow
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for the bandwidth,
Skip Withrow
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or are they
incorporated into the 1pps solution somehow as well?
If someone has some enlightenment it would be appreciated.
Thanks in advance,
Skip Withrow
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than happy to pay the postage both ways, do the
scanning/copying, and would definitely get it back to you.
Thanks,
Skip Withrow
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ead out there please let me know.
Thanks,
Skip Withrow
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in it would be
appreciated. Or, if you can point me to someplace that might hold
some information it would be great.
Thanks in advance for any help.
Skip Withrow
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in advance for any help.
Regards,
Skip Withrow
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).
Does anyone know what the differences are between the two units, or
have the magic decoder ring for the part number?
Thanks in advance,
Skip Withrow
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wondering if anyone from the group has some experience in this area?
Thanks in advance for any help.
Regards,
Skip Withrow
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