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In a message dated 28/07/2007 05:49:07 GMT Daylight Time, [EMAIL PROTECTED]
writes:
Before this subject deteriorates into what trial lawyers and
politicians excel at (twisting words to obscure the truth),
consider what happens
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I think what is proposed is that time, while real, would not be a
fundamental dimension of the universe, it would be a dimension of
convenience, due to our lack of understanding of the underlying principles.
It is interesting
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Of course, any method is only as good as it is implemented. Crimping gets
rid of a number of chemistry problems, and creates few problems in return.
One problem with crimping coax cables is that crimping the braid is usually
done
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I'm surprised that no one has come forth with the apposite quote from
the Hitchhiker's Guide to the Galaxy: Time is an illusion. Lunchtime,
doubly so.
John
Didier Juges said the following on 07/28/2007 09:29 AM:
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The question wether time exist is very interesting. But is it not elementary to
ask before what we understand as time?
(Interesting to hear people saying: I've no time... how if he lives at the
same time and speed around?)
My
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Didier Juges said the following on 07/28/2007 09:39 AM:
One problem with crimping coax cables is that crimping the braid is usually
done against the plastic (term used generically) insulation between the
center conductor and the
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John Ackermann N8UR said the following on 07/28/2007 09:58 AM:
I don't know that I've ever seen any crimp connectors that don't have a
sleeve between the coax and the dielectric. Maybe I've just been living
right...
Argh! I
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Didier Juges wrote:
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Of course, any method is only as good as it is implemented. Crimping gets
rid of a number of chemistry problems, and creates few problems in
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Didier Juges [EMAIL PROTECTED] wrote:
I think what is proposed is that time, while real, would not be a
fundamental dimension of the universe, it would be a dimension of
convenience, due to our lack of understanding of the
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I was referring to the crimp connectors like the SMAs where the cable is
press-fit in the connector. These work well at t=0 and in low stress
equipment, but are not too good in high vibration or thermal cycling
environments.
Also,
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That is the comfort of familiarity :-)
Well, as much as I am attracted by the mysteries of science, I am quite
happy solving relatively mundane problems everyday like so many engineers.
So much so that I am not sure what it would
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Hi gang,
I'm still headed towards getting a Stratum 1 NTP server up and going.
From what I've learned so far, higher quality PPS signals aren't going
to do a lot for me if my server has a wiggy clock. That makes perfect
sense.
If indeed Time = Money, then maybe we should consider renaming this group to
money-nuts ?
_
Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail
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The key is the gas tight connection between the
surfaces. If moisture and/or oxygen can't get in the
conection will remain true. Back in an earlier life
in the telecommunications industry connections went
from soldered to wire
In message [EMAIL PROTECTED], Robert Sexton writes:
Hi gang,
I'm still headed towards getting a Stratum 1 NTP server up and going.
From what I've learned so far, higher quality PPS signals aren't going
to do a lot for me if my server has a wiggy clock. That makes perfect
sense. Now I just
Hi Didier,
I believe you are mistaken about what holds a crimp SMA connector together.
The crimp force is entirely taken up in trying to constrict the circumference
of the solid copper jacket. Because a cylinder is one of those perfect
structures discovered by the ancients, this crimping
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I have made
numerous shielded opens for network analyzer use by crimping an
SMA connector
nut onto a piece of copper semi-rigid shield tube without using any center
insulator, or center pin.
You can (supposedly) mess up an
On Sat, July 28, 2007 18:17, Robert Sexton said:
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Hi gang,
I'm still headed towards getting a Stratum 1 NTP server up and going.
Go build that S1 NTP server with the stuff you have! See what work and
what seems not to work.
Hi Magnus,
The 5372A which we bought new years ago reference polluted by the
switching power supplies. There were more of them with different
frequencies. It showed up in the fft of measurements and also seen at
the reference output. I do not have access to that instrument anymore
and do
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John Miles wrote:
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I have made
numerous shielded opens for network analyzer use by crimping an
SMA connector
nut onto a piece of copper semi-rigid shield tube
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Almost any OCXO (even much simpler ones than the HP '811 or '544)
will get you microsecond stability on your NTP server.
Can you elaborate a little on your tests of NTP server stability vs
oscillator choice? How useful/reliable
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Hi gang,
I'm still headed towards getting a Stratum 1 NTP server up and going.
From what I've learned so far, higher quality PPS signals aren't going
to do a lot for me if my server has a wiggy clock. That makes perfect
In message [EMAIL PROTECTED], =?
iso-8859-1?Q?Bj=F6rn_Gabrielsson?= writes:
Almost any OCXO (even much simpler ones than the HP '811 or '544)
will get you microsecond stability on your NTP server.
Can you elaborate a little on your tests of NTP server stability vs
oscillator choice? How
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Robert Sexton [EMAIL PROTECTED] wrote:
Hi gang,
I'm still headed towards getting a Stratum 1 NTP server up and going.
From what I've learned so far, higher quality PPS signals aren't going
to do a lot for me if my server has
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Sorry for the intrusion; testing some mail system upgrades that I'm
hoping might solve the spurious-header problem.
John
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe,
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Now, I can just see everyone telling me that WWVB and WWV etc.
are now tied to GPS :-(.
Tim.
Not directly tied, but several NIST papers state that GPS
common view is used to keep the local standard(s) in
Ft Collins
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Hi Chuck,
You may be correct, the deformation is not obvious when looking at it with
the naked eye (never actually measured it, but you prompted my curiosity, so
now I will have to check :-) That may explain the relative
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Sorry, I forgot three of these : ;-)..Don C.
- Original Message -
From: Don Collie [EMAIL PROTECTED]
To: Tom Van Baak [EMAIL PROTECTED]; Discussion of precise time and
frequency measurement time-nuts@febo.com
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Hi:
I spent a few decades in work related microwave components most of which used
SMA connectors. The early ones used the solid center conductor of the 0.141
coax as the center pin and so the male was just the nut and
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Completely agree with Didier and Tim.
There's another observation about time: Events are spaced in time.
If there is no time, then everything happens at once.
Perhaps our Big Bang came from another universe running out of
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I really like your namesake's (Stephen) title for his original book A Brief
History of Time and the newer version A Briefer History of Time. Now
there is a time-nut. Very clever titles. - Mike
Mike B. Feher, N4FS
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