David,
Something like this was done in NTPv3 (xntpd) and it turned out to be a
bad idea. The poll interval is determined by the time constant, which
for PPS and other low-stratum sources is relatively small. If a backup
is switched in at a poll interval much larger than this, it takes awhile
What is a good book on ntp that explains the math behind the protocal.
Thanks
Chip
See Dave Mills' book:
ISBN 0849358051
http://books.slashdot.org/story/06/05/15/143251/Computer-Network-Time-Synchronization
Cheers,
David
___
questions
E-Mail Sent to this address will be added to the BlackLists
Null@BlackList.Anitech-Systems.invalid wrote in message
news:iulje3$ahd$1...@dont-email.me...
[]
Unless I'm off by a magnitude somewhere;
Copper wire is about 0.3m/ns? 100m ~= 333+ns?
The differences in e.g. PC serial port
The Chinese GPS is not bad and the price is only about $35
But for not much more money you can get a nearly state of the art unit
that is made and supported by a US company.
Synergy will selll you an M12M Timing GPS Receiver for about $60.
Look at the specs on the PDF sheet.This is gross
Richard B. Gilbert rgilber...@comcast.net wrote in message
news:_6idns6-1fdcpzttnz2dnuvz_rsdn...@giganews.com...
[]
The best source of time IMHO is a GPS Timing Receiver. Note that GPS
Receivers can also be designed for navigation. For timing service you
should take care to get a receiver
I've updated the firmware on my unit from 3.20 to 3.70 and it seems
the jitter has indeed improved, see:
http://i.imgur.com/6NFBA.png
The middle part is when the unit was upgraded.
--
Miroslav Lichvar
That's good news, Miroslav, even better than expected. Thanks for
posting. From those
Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote in message
news:sekdnu74hspfmgbqnz2dnuvz_jgdn...@megapath.net...
In article banlktikc4ydiycbw4no2ay2o-r+dfp9...@mail.gmail.com,
steven Sommars stevesommars...@gmail.com writes:
You may want to watch for several days. Previous 18x LVC
The problem with both of those is that the Linux machines are all
going to want the PPS to be conected to the DTR pin of a serial port
and for that you need rs-232 levels with wides plus and minus volts.
TTL level or wose is not going to work.
[]
Chris Albertson
Redondo Beach, California
In
C BlacK rb...@non.net wrote in message
news:g6kdnaptj_xcfwrqnz2dnuvz_okdn...@supernews.com...
For our discussion, lets say there are many machine but the distance is
not going to me more that 100ft.
Then some top-of-the head sums might be:
100 machines - RS-232 input resistance, guess, 4K,
Eugen COCA ec...@eed.usv.ro wrote in message
news:daa8a19f-fed1-4ded-84cd-d87785b42...@c41g2000yqm.googlegroups.com...
The new firmware for GPS 18x PC/LVC is also available:
https://buy.garmin.com/shop/store/downloadsDetails.jsp?id=4055product=010-00321-51cID=170pID=223
Changes made from
E-Mail Sent to this address will be added to the BlackLists
Null@BlackList.Anitech-Systems.invalid wrote in message
news:itauip$4v0$1...@dont-email.me...
David J Taylor wrote:
C BlacK rb...@non.net wrote in message
For our discussion, lets say there are many machine
but the distance
I believe there is a fix for this GPS 18x LVC problem due from Garmin
in
the very near future - a week or two. I will post details when I hear
I'll beleive it when I see it. That they have been sitting on this
problem for as long as they have does not strike one with any
confidence.
Some
The garmin 18x LVM apparently has a problem that it will somtimes
deliver the nmea time aver 1 second after the pulse. This makes anything
think that that time is associated with t he wrong second. I believe the
latest gpsd has a fudge for this, but Garmin needs to get its act
togetehr.
I
Folks, I have received the following, relevant to the UK
_
STANFORD TRAINING AREA, EAST ANGLIA, SEPTEMBER AND OCTOBER 2011
Dates: Between 19 and 23 September 2011 and between 03 and 07 October
2011 inclusive.
Times: 0900 -1730 BST.
Location of
Folks,
I have received the following:
Dates jamming will take place: 31/05/2011 - 10/06/2011
Time periods during which jamming will take place: Periodically Mon- Fri
09:00 - 17:30
Details of Jamming.
a. Location of MULTIPLE jammers: Land based within
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnis6idl.eqd.un...@wormhole.physics.ubc.ca...
[]
IIRC some BSD variants were claiming to get ~150ns?
I do not believe that you can service an interrupt, and read a system
clock
that quickly. If you have specialised hardware on the
It appears all I needed to do was swap the TX and CD pins to get it to
start polling and synced to PPS. Thanks!
Great!
Now, a behavioral question. Will PPS be selected as the peer if and
only if the peer marked preferred is also synced? What if I want PPS
to act as a supplement to whichever
Not that accurate, within a second for what I need when traveling for
work. But I often as not find the last choice of server(s)
problematical, for some odd reason. Many hotel internet seems to be
tunneled somewhere else, before it gets out to the wider www, with all
the hidden latency and
Richard B. Gilbert rgilber...@comcast.net wrote in message
news:ojmdnuvxob4wkv7qnz2dnuvz_vydn...@giganews.com...
[]
Getting the time into the computer takes X microseconds where X depends
on the hardware and software. Windows' clock ticks every 17
milliseconds or something like that. Other
I've been to some hotels in po-dunk (whatever the colloquial
slang is) Europe; Wi-Fi via Sat to ISP to internet,
over utilized, high latency, really low bandwidth, ...
I've had colleagues in the middle of the South American
jungle on similar corporate setups at base camps for new
oil
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnis0nra.4on.un...@wormhole.physics.ubc.ca...
[]
Unfortunately , AFAIK, usb is terrible for delivering a PPS-- ie no
interrupt lines-- the problem with having only two data lines (one beign
signal ground)
USB is not as good as a
[]
The problem is we cannot get NTP to sync to the PPS output. The PPS
source shows up in “ntpq –p” however it has 0 reach. System B is
synced to System A and is a stable Stratum 2 server at the moment.
MbgMon on System B shows the PPS output on the card is active. The
IRIG signal is 100% and
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnis2psa.6vn.un...@wormhole.physics.ubc.ca...
[]
Jitter and accuracy are not the same thing. It would be interesting to
attach the PPS to a real interrupt (ie one which can be serviced on the
1usec level) and see what the offset of the
As the OP who started this (long and sometimes ammusing) thread...
I do carry a GPS receiver with me, but sadly not PPS capable, I use it
for location determination/tracking/navigating etc. Maybe I should
include a GPS18 or 16 in the already bulging Laptop bag I lug arround.
Even better if
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnirnckd.qft.un...@wormhole.physics.ubc.ca...
[]
I still have no idea why the OP wants to do what he claims to want to
do.
Perhaps you remember how year 2000 rollover tests were carried out? It
included setting the clock forward
David J Taylor david-tay...@blueyonder.co.uk.invalid wrote in message
news:iph27t$tsu$1...@dont-email.me...
I have an application where it would be desirable to check that NTP is
installed and running, and that the offset reported by NTP is within,
say, one second. So we don't need millisecond
Sorry, editing flub, the original message was at 13:18 UTC.
At a minimum to accomplish your stated goal your code should ensure
leap != 11 (that's normally displayed by ntpq in octal, so in
Sorry, ntpq uses binary display for leap (and octal for reach). In
both cases the on-wire form is
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 reference clocks would require a long antenna
wire to get
I have received the following:
Notice of Interruption to MSF 60 kHz Time and Frequency Signal
The MSF 60 kHz time and frequency signal broadcast from Anthorn Radio
Station will be shut down over the period:
03 May 2011 to 13 May 2011
Each day
Your client software is five years out of date, I suggest you update
it.
Red Herring.
Not even worth updating for the security updates?
The problem here is that the client system is running in a VM.
Not mentioned in the original post, though!
The OP wants to sync this client to his
Dear Support,
This is a newsgroup, there is no support as such.
I have a NTP server, and configure clients on it.
I am facing an issue that the offset is too much high so there a
difference in
the time between the client and the server, it is reaching 1 hour
sometimes.
NTP client version:
Richard B. Gilbert rgilber...@comcast.net wrote in message
news:ot-dnvdagogjoizqnz2dnuvz_o-dn...@giganews.com...
[]
Anyone who doubts the accuracy, legitimacy, etc. of pool services should
be able to purchase a GPS timing receiver and get the time from the
horse's mouth. The investment
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnir4tou.j3t.un...@wormhole.physics.ubc.ca...
[]
He did say a timing receiver. That could mean a GPS receiver
specifically set up to supply time, including an on board temp
insensitive crystal to supply the time if the sattelite
Rob nom...@example.com wrote in message
news:slrnir52mv.hnj.nom...@xs8.xs4all.nl...
[]
Why is this irrelevant discussion started every time some topic is
being discyssed in this newsgroup?
It does not matter what the initial question is, what problem someone
tries to solve, what requirements he
Rob nom...@example.com wrote in message
news:slrnir54hp.hnj.nom...@xs8.xs4all.nl...
[]
The initial question:
| Due to my wandering use of a laptop for, work (cough!) Often away
| from the office, and our server, but with local internet access (Hotel
| WiFi etc).
|
| What UK based RELIABLE
Roger invalid@invalid.invalid wrote in message
news:oei2r6p2ut7793hu02pauutkjmm22ht...@4ax.com...
On 21 Apr 2011 16:18:39 GMT, Rob nom...@example.com wrote:
When I do a lookup of pool.ntp.org I get three addresses returned that
are local to me.
I'm in the UK and the three I just got were UK,
Is your Internet provider a company that is also (or mainly) active
in France and Germany?
No, exlusively British, I believe.
Apparently the IP location service misinterprets your IP adress.
That should be fixed. For the addresses I can test it works
flawlessly.
My IP address is:
I hope that the pool folk will be able to update their page in due
course - likely documentation isn't the top priority!
The quickest way to bring this to their attention is to report it on the
p...@lists.ntp.org mailing list.
--
Steve Kostecke koste...@ntp.org
Already done, Steve.
BTW: is
Rob nom...@example.com wrote in message
[]
server 0.uk.pool.ntp.org iburst
server 1.uk.pool.ntp.org iburst
server 2.uk.pool.ntp.org iburst
server 0.nl.pool.ntp.org iburst
server 1.nl.pool.ntp.org iburst
Omit the region codes (uk, nl etc).
They are no longer required and when you are mobile you
Richard B. Gilbert rgilber...@comcast.net wrote in message
news:wegdnew3j4a37tlqnz2dnuvz_gwdn...@giganews.com...
[]
You don't really care what hardware the server runs on! X86 should work
as well as any other architecture.
The software is somewhat more important. Linux works well on the X86
Ben Rockwood b...@cuddletech.com wrote in message
news:4daf84fc.7060...@cuddletech.com...
I've read in the past that clients should always have an odd-number of
NTP servers; 1 server or 3 servers but not 2. If I recall the reason
was that clients could become confused and needs a tie breaker.
Hi David. Long time no speak.
Oops, I missed the callsign! Hope all is well.
I'd ordinarily love to, but this is the works machine I carry arround
places etc. Our illustrious IT droids have no interest in this, other
than to Flatten the machine and re-install the OS. Anything outside
Rob nom...@example.com wrote in message
news:slrnir0cq8.7do.nom...@xs8.xs4all.nl...
[]
However, Rob, the Pool Web pages suggest that better results will be
obtained by leaving the country codes in:
http://www.pool.ntp.org/en/use.html
The documentation is outdated.
I would have hoped that
Rob nom...@example.com wrote in message
news:slrnir0m6v.e7e.nom...@xs8.xs4all.nl...
[]
I don't know how the pool functionality in ntpd works, it is not
available in the version I use.
Thanks, Rob. Perhaps there is a page somewhere?
I only know that the pool has introduced a
Hi All.
[]
At least, looking in the system error and info logs, after recovering
from a lockup, it's related to W32Time going bad, not long after first
boot of the day.
[]
Idea's brickbats etc welcome...
Regards.
DaveB.
Dave,
Forget W32Time and use NTP exclusively. I have it on the
Omit the region codes (uk, nl etc).
They are no longer required and when you are mobile you should
not have them. The pool.ntp.org dns determines where you send
your request from and returns servers that are local to you.
Thanks for the suggestion, Rob. Implemented.
Cheers,
David
The more recent versions only _need_ one pool line,
and it will keep pulling up more servers as needed.
--
E-Mail Sent to this address blackl...@anitech-systems.com
will be added to the BlackLists.
Thanks for that reminder. I'm running ntpd 4.2.4p6 on that particular PC.
Does that support
Thanks for all the great answers. Now for a harder question, how does
the accuracy of the local clock source
affect the accuracy of ntpd.
Thanks
Chip
Chip,
It also depends on the OS in use. Even with a timekeeping GPS (better
than a microsecond), Windows does not keep time as well as
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniqpa40.ppu.un...@wormhole.physics.ubc.ca...
[]
Well, I think someone other than the current maintainers will have to
port it to windows. Since windows timekeeping is not the worlds best
anyway, it is probably true that the extra
David Woolley david@ex.djwhome.demon.invalid wrote in message
news:iojbue$ge9$1...@dont-email.me...
[]
As I keep saying, offset does not accurately measure time keeping
accuracy. A low offset can mean that you are tracking traffic
variations on the LAN, or interrupt latency variations, rather
C BlacK rb...@non.net wrote in message
news:o-adnvwgbzb3ntbqnz2dnuvz_ocdn...@supernews.com...
Why would it take ntpd ten hours to achieve its accuracy? Can this be
explained in laymans terms and
mathematically
What accuracy do /you/ want? For best accuracy which NTP can achieve, in
the
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniqnml8.ln1.un...@wormhole.physics.ubc.ca...
On 2011-04-18, David J Taylor david-tay...@blueyonder.co.uk.invalid
wrote:
C BlacK rb...@non.net wrote in message
news:o-adnvwgbzb3ntbqnz2dnuvz_ocdn...@supernews.com...
Why would it take
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniqotoj.40a.un...@wormhole.physics.ubc.ca...
[]
Mine is within about 6 microseconds, in a non-temperature controlled
environment (running 24 x 7). Looking at the plots it is quite clear
that
temperature variations are the limiting
I've written a tiny program to do exactly this and this is the output:
[]
BTW, this morning I got 14 sats in the (4!) GSV messages, that's the
first time I've seen a GPS with info about more than 12 sats! :-)
Terje
Terje,
That's great! Any chance of a copy of the program?
Did you ever
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnipci4i.3la.un...@wormhole.physics.ubc.ca...
[]
Which route did you take-- PPS pin to RS232 (CMOS level) or via the
buffers/inverters?
All I am pointing out to people who might regard the sure board as a
really cheap path, but do
I've done some more careful inspection of the Sure GPS comms trace:
It really looks like the GPS does _not_ listen to commands by default,
instead the controlling program sends a solitary '0' char to ask for
permission to talk.
About 200 ms later the GPS boards drop the CD (Carrier Detect)
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrnipapga.co8.un...@wormhole.physics.ubc.ca...
[]
Using a soldering iron on surface mount devices is a bit trickier-- too
easy to bridge the pins is you do not have very steady hands. Not saying
you cannot do it. But Joe Bloggs might
The MoD has informed Ofcom of the following GPS jamming exercise update:
Reference: JRS0012
Dates and times: GPS jamming will take place according to the following
schedule:
6 Apr 1400-1500Z
8 Apr 0200-0400Z
1000-1100Z
1330-1530Z
I'd have to say the Motorola Oncore UT+ is the easiest to use. All
the connections are to 0.1 pitch male header pins so there is no
need for solder. The UT+ sells for about $16 on ebay. The
documentation is exhaustive and complete and written in standard
English. And of course the UT is
Thanks to all. I am using Garmin 3.20, as it it turns out.
However, I reverted to 4.2.5p233 of Dave Hart's builds, and it does
not appear to have the same strange behavior. I had been using
4.2.7p138 (which I first installed only yesterday).
I'll try a few of Dave's other builds to see if I
Hi,
I would like to know if ntpd would use the driftfile specified in /etc/
ntp.conf file if it is run periodically using crontab with -q option
as below:
/usr/sbin/ntpd -u ntp:ntp -p /var/run/ntpd.pid -g -q -L eth0
I do not find any drift file being created at the specified location.
Thanks
He can do that if he wants to. That was why the -q option was designed
into ntpd-- one time setting of the clock time. However it cannot create
a drift file. If he wants a drift file then as you say, he must run it
continuously.
You could look at it that way, Bill, if all he needs is a one-off
Q ..@.. wrote in message
news:4d887390$0$2524$da0fe...@news.zen.co.uk...
[]
Hi David,
A reply from Garmin!
Also I tried the downgrade - its in and working, though I'm not seeing
much if any difference in the numbers yet - I should be able to post
some data later in the week once its
lellis larry.el...@gmail.com wrote in message
news:efc6e755-c213-4a10-90f9-420384001...@s18g2000prg.googlegroups.com...
On Win XP, I am seeing an odd positive offset of about 128ms on the
Atom driver, relative to other sources:
remote refid st t when poll reach delay
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniohmmc.6v5.un...@wormhole.physics.ubc.ca...
[]
ntpd -q is a replacemtn for ntpdate, which was typically run from cron,
and he is doing, and it is an acceptable procedure if for example you
do not want a daemon running which could
Q ..@.. wrote in message
news:4d88df4c$0$2514$db0fe...@news.zen.co.uk...
[]
If you have no objections it may be easier to take this 'off-list' and
email you direct - it will save all the poor folk on here having to
listen to my insane testing - once everything is working and playing
nice I
unruh un...@wormhole.physics.ubc.ca wrote in message
news:slrniohsae.ksv.un...@wormhole.physics.ubc.ca...
[]
I have seen the drift out by 400PPM at around the hour mark. ntpd
massively overswings to correct any intial error in the clock ( say a
few ms) , and then gradually
settles back
Which apparently allows ongoing, hands-off use of unsigned drivers
after initial setup. I am curious to hear from anyone who tries it
with serialpps.sys and ntpd on Windows.
Cheers,
Dave Hart
Folks,
This is now written up here - comments and corrections warmly invited:
Coming thick and fast!
_
The MoD has informed Ofcom of the following GPS jamming exercise:
Dates: 19 - 26 May 2011.
Times: limited periods between 0700z 19 May to 100z 2 May 2011.
Location: The ground based radar jamming events will
Which apparently allows ongoing, hands-off use of unsigned drivers
after initial setup. I am curious to hear from anyone who tries it
with serialpps.sys and ntpd on Windows.
Cheers,
Dave Hart
I'll try this out later today, Dave.
Cheers,
David
http://www.ngohq.com/home.php?page=dseo
Which apparently allows ongoing, hands-off use of unsigned drivers
after initial setup. I am curious to hear from anyone who tries it
with serialpps.sys and ntpd on Windows.
Cheers,
Dave Hart
http://www.davehart.net/ntp/refclock/serialpps-20090606.zip
Which apparently allows ongoing, hands-off use of unsigned drivers
after initial setup. I am curious to hear from anyone who tries it
with serialpps.sys and ntpd on Windows.
Cheers,
Dave Hart
It's certainly working, Dave, and that's great news! Compare the plot of
PC Alta from 07:30 UTC
Yes, it looks good, and thanks for clarifying the before was using
the user-mode PPS hack in the Windows port of ntpd.
However, it doesn't seem to be working anything like as well as
nominally
the same software installed in 32-bit Windows on PC Stamsund. Compare
the
offsets of 32-bit PC
Folks,
I have received the following announcement:
___
The MoD has informed Ofcom of the following GPS jamming exercise:
Dates: Jamming will be conducted on a maximum of 3 week-days in the period
10-21 July 2011.Times: 0900 -1730 BST.
Q ..@.. wrote in message
news:4d7fd7ae$0$2503$db0fe...@news.zen.co.uk...
David J Taylor david-tay...@blueyonder.co.uk.invalid wrote in
message news:ilc6um$4s8$1...@news.eternal-september.org...
To me it should be common courtesy to reply as soon as possible, even
if it's just
Is that NT3.5 fact still valid ?
Never understood why anyone would use Windows for real work anyway.
The thing that it does best is waiting ever faster for the next
keypress from the user.
uwe
Perhaps people use Windows because the software they wish to run is only
available for Windows? I
Uwe Klein uwe_klein_habertw...@t-online.de wrote in message
news:h01s48-89b@klein-habertwedt.de...
David J Taylor wrote:
Is that NT3.5 fact still valid ?
Never understood why anyone would use Windows for real work anyway.
The thing that it does best is waiting ever faster for the next
Versions: System is debian Lenny, ntp is version
'1:4.2.4p4+dfsg-8lenny3'
I've followed the rabbit hole as far as I can. Can someone point me in
the right direction from here?
Martin, I don't know whether it will help, but the current stable version
of NTP is now 4.2.6p3, form:
Thank you for your answer. Yes, that was something I considered.
However, there is no newer Version in lenny-backports, and I have shied
away from building it myself (additional error potential and all that.)
Anyway, I just found my mistake:
[]
Thank you for your help!
Considering I know
Q ..@.. wrote in message
news:4d79277a$0$2538$da0fe...@news.zen.co.uk...
David J Taylor david-tay...@blueyonder.co.uk.invalid wrote in
message news:il7bhl$vgg$1...@news.eternal-september.org...
I hope that Garmin at least acknowledge your request - let's hope the
delay means that it being
Hi David,
I sent off the query/problem to them a few days ago via the online
form - alas no reply as yet though.
I've had problems my end anyway the box this is attached to decided to
die and I had to replace the CPU which did all sorts of odd things with
the clock and required a change of
Ralph ra...@depth.net wrote in message
news:c5b90638-395f-4e77-8761-f99c25343...@glegroupsg2000goo.googlegroups.com...
Ok. The host OS time is fine so I'd have no problem using that
as the source for my linux guest.
What no one has provided yet is an answer to 'how' to get the
linux guest VM to
Sorry if the formatting is bad.
I don't have a local newsfeed (ISPs seems to have abonded providing
that)
so I have to post via google. I wraps fine on their editor but I can
see
where it might not format well in the newsfeed.
Ralph,
You may be able to use one of the free news services
Terje Mathisen terje.mathisen at tmsw.no wrote in message
news:54vg48-ttp2@ntp6.tmsw.no...
[]
A RAIG (Redundant Array of Inexpensive GPSs) setup solves that problem
as well. :-)
I.e. as I wrote I have 3 Oncores as well.
Terje
3 GPS for about US $100 and a little soldering:
Ralph ra...@depth.net wrote in message
news:d695207e-04ec-4664-8580-35bc25806...@glegroupsg2000goo.googlegroups.com...
Well it started out as NTP's problem because apparently the
clock instability makes it so NTP can't run right on the guest.
I understand this isn't so much an NTP problem if the
Hi all
[]
Robert
Robert,
You have had some good advice from other here. I have various Windows
systems here running NTP, with offsets of less than 100 microseconds
(Windows-7, PC Stamsund, with an attached GPS/PPS device) and less than 1
millisecond (Windows XP, PC Narvik, LAN-synced).
Gautam Thaker ghtha...@gmail.com wrote in message
news:bbf7043d-935c-4a9d-8b8e-a30d44779...@8g2000prb.googlegroups.com...
On Feb 26, 5:44 am, Dave Hart daveh...@gmail.com wrote:
http://davehart.net/moo/ntpd-QPC-20090614-0900.zip
That represents the last in a series of 4.2.4p6-based private
Are you sure that, on your system, there are no other programs trying
to set
the time?
That is what I thought, that something was jumping the system clock.
The fact that the offset value is always anice even value I think
proves the clock is not drifting or noisy by being set.
--
=
Chris
Here is what the Windows7's event log says. The last restart w/
4.2.7.p98 was started at 3:51. (It is not giving a good sync). Earlier
than that I had an error in specifying minpoll=maxpoll=32, but i fixed
that and i do see poll value of 32.
Level Date and Time Source Event ID Task Category
Once you replace the binaries in
C:\Program Files\NTP\bin
do you need to do anything extra (such as use Instsrv.exe) to register
the new binary. I get a popup saying
Erorr 5: access is denied.
Any hints welcome.
Gautam
Gautam,
If you are using Vista or Window-7, I advise against
http://www.sureelectronics.net/goods.php?id=99
Except there is no indication that this thing puts out a PPS signal.
Bill, do you need to add a couple of wires to get an RS-232 level signal,
as I describe here:
http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm#sure
For just over US $30
dwmal...@maths.tcd.ie wrote in message
news:201102241413.aa58...@walton.maths.tcd.ie...
In comp.protocols.time.ntp you write:
Bill, do you need to add a couple of wires to get an RS-232 level
signal,
as I describe here:
http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm#sure
For just
Based on 1 response I upgraded to
ntp-4.2.7p98-win-x86-bin.zip
from
http://davehart.net/ntp/win/x86/
However, though NTP is running and the offset values on my win7-32
box are quite horrible. (i should note that on same subnet using same
time server a fedora12 box achieves sub 1msec offset
Hi:
I have had excellent results using
http://www.meinberg.de/download/ntp/windows/ntp-4.2@lennon-o-lpv-win32-setup.exe
on a windows XP platform, but on windows 7 I never get a good sync.
(The NTP server is a high quality statum 2 time server which provides
excellent time to Fedora/Linux
http://www.sureelectronics.net/goods.php?id=99
Thanks for the link!
Even though I already have a big bunch of GPSs, I've placed an order for
one of those kits. :-)
I really liked the multiple interfaces, the ms precision for the NMEA
timestamp and the total price which is below the minimum
Ok I'll go back over your past posts re the problem and report it myself
to Garmin UK and see what they say - once I get something back I'll let
you know.
I have 3.60 running anyway with no new problems (that I can see)
Thanks, Q, I can't see it doing any harm.
Cheers,
David
Folks,
I have received the following announcement:
__
Notice of Interruption to MSF 60 kHz Time and Frequency Signal
The MSF 60 kHz time and frequency signal broadcast from Anthorn Radio
Station will be shut down over the period:
10 March 2011 - from 10:00
I suspect now the PPS is failing somehow. I can see the serial data
appear in the log every second. But mixed in there is a error message
that reads ONCORE[0]: ONCORE: oncore_get_timestamp, error serial
pps. I'll likey grep the code for the error string and see what
it's doing.
I just bught
Q ..@.. wrote in message
news:4d45b7cb$0$2534$da0fe...@news.zen.co.uk...
Having looked through some ntp doc's and lots of websites I'm a bit
confused as to what I 'should' do.
My local PPS source is set for 'minpoll 4' (16 sec) this has had the
knock on effect that the other network based
Folks,
Is there simple DCF77 support in the Windows NTP port? This would be for
the simple receiver described here:
http://www.rrs-web.net/in3her/dcf77_32.html
A friend has one of these devices and is interested in syncing multiple
PCs. I only see manufacturer-specific drivers (types 38,
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