For your interest, this is what NTP reports when running on a VMware player
under Windows 8.1 update 1:
http://www.satsignal.eu/mrtg/performance_web-server.php
Well with +/- 0.5 milliseconds. This is the host PC which is a Windows
stratum-1 server (Sure GPS/PPS synced):
On the subject of time.windows.com, it is usually up but it seems to be a
pretty cruddy source of NTP time. The actual source is somewhere in the
Akamai cloud (so even if it resolves to the same numeric address twice, tha
Akamai cloud may in fact be farming it out to geographically different
On Mon, Jul 14, 2014 at 3:38 AM, Tim Shoppa tsho...@gmail.com wrote:
Wonder out loud if using NTP server in a load-distributing cloud will just
intrinsically be randomly cruddy, or if this is somehow engineering a
source which is often good enough for SNTP users but obviously
inappropriate
But a perfectly reasonable source of time for SNTP where you just slam the
clock, rather than NTP where you're figuring out drift...
--
Kenton A. Hoover
kenton . nemersonhoover org
+1 415 830 5843
On 14 July 2014 at 05.:23.14, Tim Shoppa (tsho...@gmail.com) wrote:
On the subject of
On Mon, Jul 14, 2014 at 11:10 AM, Kenton A. Hoover
ken...@nemersonhoover.org wrote:
But a perfectly reasonable source of time for SNTP where you just slam the
clock, rather than NTP where you're figuring out drift...
And if you use pool.ntp.org it doesn't matter and this entire discussion
I have set the time server to us.pool.ntp.org. It's keeping my clock in
step with the rest of the world so I am a happy camper. I had no idea my
simple question would result in such a long thread.
Regards.
Max. K 4 O DS.
Email: m...@maxsmusicplace.com
Transistor site
mafl...@theflynn.org said:
I am working on a project where I need to transfer 1PPS approximately 120
meters between buildings.I cam borrow a pair of 62.5 fibers from IT/
telco to do so.
Google for fiber IRIG gets plenty of hits.
Raw PPS is a nasty case for fibers. You need some sort
Good point.
I am a sucker for great surplus equipment too, in fact I have two rooms
full of stuff most of which is used from time to time.. I envy Tom's
collection.
I think we need to have a Time Nuts For Dummies article written that
takes J. Vig's writing and puts it into much less of a
At 04:09 PM 7/14/2014, saidj...@aol.com wrote:
I think we need to have a Time Nuts For Dummies article written that
takes J. Vig's writing and puts it into much less of a technically rigorous
And maybe a recommended list of simple experiments that new time-nuts
can perform.
--
newell
Hi
There are indeed modules that will move a pps over fiber. They are not cheap.
They also are not real good bang for the buck if you need millisecond level
timing. Without guidance on what we are trying to do here it’s very tough to
come up with much. NTP over a symmetrical route will indeed
yes you are right
On 7/14/2014 2:41 PM, Scott Newell wrote:
At 04:09 PM 7/14/2014, saidj...@aol.com wrote:
I think we need to have a Time Nuts For Dummies article written that
takes J. Vig's writing and puts it into much less of a technically
rigorous
And maybe a recommended list of
Sounds like a great idea,
Maybe I can venture beyond the Raspberry Pi with NTP and PPS GPS
..how far does the rabbit hole go?
Frits
On 7/14/14, Scott Newell newell+timen...@n5tnl.com wrote:
At 04:09 PM 7/14/2014, saidj...@aol.com wrote:
I think we need to have a Time Nuts For Dummies article
I think we need to have a Time Nuts For Dummies article written that
takes J. Vig's writing and puts it into much less of a technically rigorous
And maybe a recommended list of simple experiments that new time-nuts
can perform.
There's quite a list of resources at the main time-nuts page:
Hi
As I recall from conversations with John over the years, the presentation he
wrote was (for the most part) an effort to “dumb down” the subject for a more
general audience …
Bob
On Jul 14, 2014, at 9:00 PM, Tom Van Baak t...@leapsecond.com wrote:
I think we need to have a Time Nuts For
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