On Tue, 20 Mar 2018 21:16:11 +0100, Andreas Mattheiss wrote:
> Hello,
>
> I'm monkeying around with raw DCF again ...
>
> I have slightly modified a DCF77 alarm clock so that it constantly
> receives the DCF77 signal and tapped into the 100/200ms pulses. Receiption
> must be good, since when I
On Thu, 18 May 2017 13:24:17 +0100, David Taylor wrote:
>
> You could get a dedicated NTP box such as:
>
>
> http://www.leobodnar.com/shop/index.php?main_page=product_info_id=272
>
> and scatter a few or a dozen around your enterprise. Brand new hardware!
>
>From manual
"Currently IPv6 is not
On Tue, 22 Jul 2014 10:53:52 -0500, Nick wrote:
What have I missed?
ntp does not run well on Win 7 x64 and the drift is reported to be +493ppm.
Thats on the edge! How much do the computer loose/gain when you do not do
anything
to adjust time?
NTPD requres drift to be within +-500ppm.
/hjj
On Mon, 17 Mar 2014 08:50:08 -0400, Joe Gwinn wrote:
Yes. My question is basically a query about the current state of the
art.
In Cable headends they are using the DTI interface/protocol to sync
multiple boxes to within a few(5) ns.
/hjj
___
On Sat, 7 Sep 2013 17:51:02 GMT, Jared Watkins wrote:
I'm setting up several ntp servers in data centers located in many different
places around the world peering off sometimes local sometimes distant
stratum1 internet servers. (GPS backed atomic oscillators are in the works
but not yet
On Fri, 23 Aug 2013 08:28:31 -0700 (PDT), james.perou...@gmail.com wrote:
Answering both unruh and David Taylor here!
To measure the RPI's actual clock frequency, I'm using the gpioclk program
from https://github.com/JamesP6000/WsprryPi. Basically, the 19.2MHz crystal
on the Pi is being
On Wed, 24 Jul 2013 11:53:12 GMT, Igor Pavlov wrote:
Hi everyone,
Is any of Trimble GPS devices (with TSIP) supported now?
I tryed to use Generic reference driver (
http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver8.html)
In it's description there is one Trimble GPS device (mode 10).
On Thu, 28 Mar 2013 21:21:55 GMT, Harlan Stenn wrote:
On Thu, Mar 28, 2013 at 5:57 AM, Rob nom...@example.com wrote:
so you will need to write an adaptive
algorithm that recognizes what is happening here, and send the queries
quickly enough (I would say at least two per second, maybe 4) to
On Sat, 27 Oct 2012 02:40:30 GMT, Kennedy, Paul wrote:
PkBy controlling which refclocks the various test sites use, you
should see they synch up well enough. We do this regularly. Unruh makes
a very good point on the delay Vs Offset. You should certainly be doing
this as it will reveal
On Sat, 15 Sep 2012 08:42:02 -0500, Thomas Laus wrote:
On 2012-09-14, anots...@fastmail.fm anots...@fastmail.fm wrote:
Some people are interested to use authenticated NTP for their linux
distributions. [1] [2]
Obviously an identity scheme, where NTP server has its own private and
public key
On Wed, 25 Jul 2012 07:51:09 GMT, Pan ruochen wrote:
I tried to get time from remote NTP servers by send UDP packets. I
could connect to the server and could successfully send the UDP packet
out (indicated by the return value of sendto()). But I never got
response from the servers.
What do
On Wed, 30 May 2012 14:15:27 +0100, David J Taylor wrote:
[Although the two jitters of 180 milliseconds in your ntpq -p billboard is
not encouraging!]
According to http://www.raspberrypi.org/faqs
The Ethernet is driven via USB 2.0, so the upstream bandwidth would not
support Gigabit.
This
On Fri, 29 Apr 2011 11:10:58 GMT, Cristian Seres wrote:
Hi!
I am looking for a solution to install an NTP server in a very
restricted network which can not be connected to other networks even
through a firewall because of strict security policy. RS232 and usb are
ok. Using GPS or DCF77
On Sun, 3 Oct 2010 20:29:51 GMT, Goran Sandin wrote:
When I start ntpd I get these two comments in /var/log/messages:
refclock_newpeer: clock type 28 invalid
configuration of 127.127.28.0 failed
Clock 28 not compiled into binary.
/hjj
___
questions
On Mon, 12 Apr 2010 00:36:16 -0500, Hal Murray wrote:
There was an article in the HP Journal on the Z3801A.
I have not been able to find the issue at
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/hpjindex.html
Do someone have a pointer?
or a service manual with full circuit schema if trees
On Wed, 14 Oct 2009 11:50:42 +0200, Uwe Klein wrote:
Rick Jones wrote:
Uwe Klein uwe_klein_habertw...@t-online.de wrote:
With switches the problem tends to be the strategy for handling
(potentially) colliding traffic.
Passthrough, store-and-forward, drop/cause resend have
massively different
On Wed, 13 May 2009 20:04:14 +0200, Towli wrote:
Im using Cisco 3750 switches synching with a DFC77 appliance box and
external (InetProviders) Stratum 1 servers.
If i erase the ntp clock-period from my switches when they are in synch with
my appliance box - would the precision improve ?
On Fri, 06 Mar 2009 05:44:24 GMT, Unruh wrote:
Jason bmwja...@bmwlt.com writes:
A sys admin and I discussed the possible solutions today, and we have a
potential winner, although we can't reach the small 10s of uSec goal, we
can reach several 100s of uSec (and probably less) easily. We are
On 21 Feb 2009 12:15:30 GMT, Rob wrote:
I think the value returned by the gettimeofday function will probably
have a worse resolution on the MOXA board than it has on the PC.
That will make it difficult to get a low offset value, as the gpsd process
sends the gettimeofday value at the time of
On Thu, 19 Feb 2009 13:14:01 -0800 (PST), cnm3...@gmail.com wrote:
On Feb 19, 1:56 am, David Woolley
da...@ex.djwhome.demon.co.uk.invalid wrote:
Hans Jørgen Jakobsen wrote:
precision=-7 is not that spectacular.
Are there other options for clocks on the board?
Exactly, although
On Sun, 15 Feb 2009 04:07:33 GMT, Danny Mayer wrote:
Richard B. Gilbert wrote:
Chris Adams wrote:
Once upon a time, Richard B. Gilbert rgilber...@comcast.net said:
My bet would be that there is an asymmetry in your ADSL link! If I'm
not mistaken, the A in ADSL stands for asymmetric!
The
On Sun, 15 Feb 2009 18:04:36 GMT, Unruh wrote:
Hans =?iso-8859-1?Q?J=F8rgen?= Jakobsen h...@wheel.dk writes:
For my 14M/1.5M VDSL line I see an offset of 7-800 microseconds:
ntpq -p
remote refid st t when poll reach delay offset jitter
On Sun, 15 Feb 2009 10:48:48 -0800 (PST), Dave Hart wrote:
On Feb 15, 6:04 pm, Unruh unruh-s...@physics.ubc.ca wrote:
Hans =?iso-8859-1?Q?J=F8rgen?= Jakobsen h...@wheel.dk writes:
There ARE asymetric delays even for ntp packets.
For my 14M/1.5M VDSL line I see an offset of 7-800 microseconds:
On Tue, 30 Dec 2008 19:13:51 GMT, lguzm...@mercurio.cl wrote:
Dear all
I am writing an article about the leap second of this year. Do you know how
companies or people can synchronized their time with the new one?
http://www.theregister.co.uk/2008/12/31/zune_death/
claims that zune are
On Thu, 1 Jan 2009 12:15:22 -, Sam Nelson wrote:
In article slrnglpbkr.11et@freesbee.wheel.dk, h...@wheel.dk says...
On Tue, 30 Dec 2008 19:13:51 GMT, lguzm...@mercurio.cl wrote:
http://www.theregister.co.uk/2008/12/31/zune_death/
claims that zune are locking up due to leap second.
On Thu, 1 Jan 2009 00:06:04 GMT, Laws, Peter C. wrote:
I enjoyed my extra second, how about you?
I was amused that WWV announced that it was *going to* happen in the 4th
minute ... after the insertion. :-)
Here are clockstats log around the (non-)event.
54831 86388.033 127.127.26.0 scpi
On Wed, 1 Oct 2008 10:24:22 GMT, David McConnell wrote:
The driftfile also sometimes seems to do more harm than good - especially
after a reboot.
Some kernels do a calibration of clock against RTC clock. This will make
driftfile misleading.
/hjj
___
On Mon, 6 Oct 2008 02:11:10 GMT, Rob Neal wrote:
On Sun, 5 Oct 2008, Hans Jxrgen Jakobsen wrote:
I have been trying to read the code. I have not been able to figure out
where
CONF_QOS_* gets translated to the actual values. A pointer please.
ntp_config.h
Should have made that more
I would like NTP traffic to use my providers EF traffic class. One way of
doing that would be to send packet with DSCP == 46 (TOS byte == 184).
But I have had no luck.
I have fetched latest dev version ([EMAIL PROTECTED])
No matter if what i try to configure(nothing, qos lowdelay, qos
On Tue, 30 Sep 2008 08:29:15 -0500, Chris Adams wrote:
What about routers that run FreeBSD (e.g. Juniper)? :-) Oops, no
attached clock until you get to the big Junipers (who need it for SONET
timing).
Do anyone have knowlegde about external timing would be used to dicipline
ntp on Juniper
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