The military radio guys tell me that every service depot
had a collection of dogs that couldn't be fixed. The dogs
were identifiable because they were missing so many parts
that were used to fix other equipment.
These units originate from a German network operator (Deutsche Telekom). They
From: Robert_Deliën [EMAIL PROTECTED]
Subject: Re: [time-nuts] HP 5060A option 004
Date: Mon, 6 Nov 2006 09:14:40 +0100
Message-ID: [EMAIL PROTECTED]
The military radio guys tell me that every service depot
had a collection of dogs that couldn't be fixed. The dogs
were identifiable because
Hi folks,
me and my friend Frank (who has got his hands on two of these HP5065)
have a problem in understanding the frequency processing scheme of these
beasts.
At a first glance everything looks pretty straightforward: A 60 MHz
carrier derived from the OCXO is multiplied by 114 to get a
In message [EMAIL PROTECTED], Ulrich Bangert writes:
But what surprises us completely is the fact that different physics
packages need DIFFERENT thumbwheel settings to generate the SAME time
scale as seen with the two devices available.
This is because rubidium vapour standards are not primary
Hi Poul-Henning,
They don't have a correct frequency, only a very stable frequency.
The actual resonance frequency of a rubidium standard depends
amongst other things on the partial pressures inside the
physics package.
We are well aware of these facts! But if THAT were the reason to
Hi folks,
please be assured that I do not want to argue away the existence of
these dependencies!
They don't have a correct frequency, only a very stable frequency.
The actual resonance frequency of a rubidium standard depends
amongst
other things on the partial pressures inside the
Ulrich Bangert wrote:
Agreed! But you are talking about things that happen INSIDE the physics
package, don't you? Ok, let us assume that there WERE big differences in
the physics packages that need to be compensated for. In THIS case the
tunable synthesizer would indeed make sense and even
From: John Ackermann N8UR [EMAIL PROTECTED]
Subject: Re: [time-nuts] Frequency processing scheme of HP5065 vapour rubidium
standard
Date: Mon, 06 Nov 2006 11:11:56 -0500
Message-ID: [EMAIL PROTECTED]
Ulrich Bangert wrote:
Agreed! But you are talking about things that happen INSIDE the
John,
offset that changed annually. IIRC, it was typically something like
300x10e-10.
Agreed! And that is what the manual says its good for!
However, the question remains why different physics packages need
DIFFERENT thumbwheel settings in order to achieve the SAME time scale.
73 de
I just finished and posted the 10811A/B OP/SRV to hparchives.com.
http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf
Enjoy,
Jack
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Re: [time-nuts] HP 5060A option 004Wow, that is a NICE scan. Thanks for
that contribution.
-- john, KE5FX
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Jack Hudler
Sent: Monday, November 06, 2006 11:31 AM
To: 'Discussion of precise time and
Thanks John, I wonder if the group has any requests.
I'm working on a personal project to scan a considerable archive of
documentation. It has required me to write a lot of custom OCR software and I
thought I would try it on my favorite source first.
What's the most requested or desired manual
Not HP, but it seems that manuals for Austron gear are always hard to
find. At the moment, I'd like to find one for the 1210D portable clock.
John
Jack Hudler wrote:
Thanks John, I wonder if the group has any requests.
I'm working on a personal project to scan a considerable archive
Saturday evening part of Europe experienced a blackout, caused, it
seems, by a single failure in Northern Germany, then propagated up to
southern Italy.
A friend that routinely monitors the 0-120Hz ULF/ELF frequency
spectrum captured the power line frequency jump following the fault.
Hre are
Hi Mike:
http://www.batteryspace.com has a number of Ni-Cad and Ni-MH cells.
It's a good idea to replace with the same chemistry so that the charger
works properly. Most modern batteries have a capacity that's much
higher than batteries 10 or 20 years ago, so getting the exact same size
is
Brooke -
Thanks for the suggestion. I did want to replace them with the same
chemistry for the reasons you stated. You are of course also correct that
the more modern cells have a higher A/Hr capacity. So, sounds like regular
modern NiCd D cells will be the way to go. That was my inclination to
If someone has that I would do it. If its glue bound I'll need to shear the
binding off to release the pages from each signature.
Right now the software needs another set of rules to create a document. I'm sure
Austron manuals are significantly different.
-Original Message-
From: [EMAIL
Wow. There are some sophisticated tools to measure power
line frequency, indeed.
Many thanks for the report. Curious about what would cause
that kind of massive overload. Seems like several generating
plants just dropped off the grid.
Regards,
Bill Hawkins
-Original Message-
From:
My local Batteries Plus was able to order the cells for me. They're
called F cells and are normally 7000 maH, though a web search suggests
there may be some 8000 maH versions available.
I have the rebuilt pack installed and it seems to work OK.
John
Mike Feher said the following on
I just went ahead and ordered from the source that Brooke suggested. They
already had a 10 pack of type F NiCds built up, so, it should be just a drop
in. That will be great as I have way too many projects anyway. BTW, I would
very much be interested in a manual as well. It seems to work fine now,
--- Ulrich Bangert [EMAIL PROTECTED] wrote:
John,
offset that changed annually. IIRC, it was
typically something like
300x10e-10.
Agreed! And that is what the manual says its good
for!
However, the question remains why different physics
packages need
DIFFERENT thumbwheel
The battery pack uses 12 cells, not 10...
John
Mike Feher said the following on 11/06/2006 07:00 PM:
I just went ahead and ordered from the source that Brooke suggested. They
already had a 10 pack of type F NiCds built up, so, it should be just a drop
in. That will be great as I have way
Hi folks- I lurk here from time to time, a piker with only one little
FE-5650 and a Russian ships' chronometer to my name... oh, a few nixie
clocks and a scope clock or so- but I saw this post about the power
outage and thought I might contribute this snippet-
From the Risks List-
The offsets were determined by BIH for UTC as ;
1960, 1961 -150 x10-10
1962-1963 -130 x10-10
1964-1965 -150x10-10
1966-1971 -300x10-10
and in 1972 -0-
the offset in clock rate was chosen to keep the UTC clock in reasonable
agreement with ET (Chapter 1 - NBS Monograph 140)
Ulrich
Normand Martel VE2UM wrote,
With Cesium, high end techniologies like fountains or beans
can be used
Yes, I know it's a typo and I mean no harm to Normand, but it
gives new meaning to the term bean counter. (Normally, a bean
counter is an accountant.)
Regards,
Bill Hawkins
--- Bill Hawkins [EMAIL PROTECTED] wrote:
Normand Martel VE2UM wrote,
With Cesium, high end techniologies like fountains
or beans
can be used
Yes, I know it's a typo and I mean no harm to
Normand, but it
gives new meaning to the term bean counter.
(Normally, a bean
counter is an
In message [EMAIL PROTECTED], Bill Hawkins writes:
Many thanks for the report. Curious about what would cause
that kind of massive overload. Seems like several generating
plants just dropped off the grid.
A big cruise-boat needed to pass under a 400 kV line on the river
Ems and to avoid trouble
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