On 3/26/21 6:52 PM, Richard (Rick) Karlquist wrote:
At HP, it was explained that a primary standard
could be built on a desert island containing no
frequency standards nor any GPS receivers, etc.
and it would be guaranteed by design to meet its
spec. It could have adjustments, either operated
At HP, it was explained that a primary standard
could be built on a desert island containing no
frequency standards nor any GPS receivers, etc.
and it would be guaranteed by design to meet its
spec. It could have adjustments, either operated
by a technician or a computer controlled algorithm,
These are the files I downloaded several years ago, what looks to be the
windows executable is inside a secondary zip file, publish.zip.
I don't recall trying to use any of this as I always calibrated 5680As using
the manual method.
I've now uploaded the file to mediafire...
In reference to:
"It would be cool to say one has a "primary standard", So, I think
we should be careful with the term, it's get thrown around too lightly."
Any of the hobby grade used Cesium standards is actually a Primary
frequency standard as it does meet the definition of:
A frequency
To all who requested,
I uploaded the entire .Zip file to KO4BB manual site: http://www.ko4bb.com/
The filename is Fe5680Calibrator.zip
It should be available to download soon.
Cheers,
DaveM
From: "Alberto di Bene"
To: time-nuts@lists.febo.com
Sent: Friday, March 26, 2021 1:31:42 PM
Some administrative info (no need to reply).
1) We are still working on the time-nuts upgrade. When things solidify
John will post details.
2) The time-nuts mailing list is currently unmoderated.
a) When moderated, every posting is checked manually before it goes out.
This is possible
share?
On 2021-03-26 12:18, DM wrote:
The search is complete!! A friend sent me what appears to be the full
package, the .exe and source code (although the source code is all
Greek to me).
I'll be playing with that in a few day & see if it will do what I
need. My FE-5680A has aged a bit over
On 2021-03-26 19:18, DM wrote:
The search is complete!! A friend sent me what appears to be the full package,
the .exe and source code (although the source code is all Greek to me).
Any chances that you will make it available also to others ?
Thanks
73 Alberto I2PHD
The search is complete!! A friend sent me what appears to be the full package,
the .exe and source code (although the source code is all Greek to me).
I'll be playing with that in a few day & see if it will do what I need. My
FE-5680A has aged a bit over the years and I'd like to get it back on
You can do the ADEV just fine using Circular T. Long-term 5071 does not
dominate the TAI phase/frequency, but they do dominate for stability.
This is the difference between EAL and TAI, the 5071's go into EAL, but
EAL is then frequency corrected with a handful of primary references
(cesium
Maybe HP5071s will get their ADEV when optical clocks will officially rule...
On Fri, Mar 26, 2021 at 9:40 AM Magnus Danielson wrote:
>
> Hi,
>
> On 2021-03-25 19:21, Poul-Henning Kamp wrote:
> >
> > Attila Kinali writes:
> >
> >> Does someone of those who own a 5071 have long-term ADEV
Hi,
On 2021-03-25 19:21, Poul-Henning Kamp wrote:
>
> Attila Kinali writes:
>
>> Does someone of those who own a 5071 have long-term ADEV data?
>> I'm looking for multi-year data. While there are plenty of ADEV
>> plots online, most of them stop at 1Ms or even at 100ks.
> As I understand
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