[ntp:questions] How to measure the synchronization quality?

2007-04-24 Thread YC_Chien
Hello everyone, I've installed the ntp software on two computers running Windows XP. And I want to know how accurate the two computers are synchronized. The way came to my mind is to connect each computer to a GPS receiver via RS232 respectively. Then see if the system time correspondes to the G

[ntp:questions] NTP and PPS (and gpsd etc..)

2007-04-24 Thread David Anullo
Hi, I have a problem (Houston..). :-) I must connect a Navman Jupiter 21 receiver to a linux-embedded machine. I must also use PPS signal for accurate time to syncronize the internal machine clock. After a lot of various tests i have big trouble upon the utilization of ntp. i have used: 1 gpsd

Re: [ntp:questions] ACTS / PTB modem refclock

2007-04-24 Thread Danny Mayer
Heiko is trying to do this from Germany so it would need an additional international dialing code, with possible pauses required for modem synchronization. Who knows what else is going on. Danny [EMAIL PROTECTED] wrote: > Heiko, > > server 127.127.18.1 minpoll 12 maxpoll 17 > phone atdt913034944

Re: [ntp:questions] ACTS / PTB modem refclock

2007-04-24 Thread Harlan Stenn
Heiko, -d should show some useful debug information. A single -d should be all it takes. I created http://ntp.isc.org/Support/ConfiguringModemRefclocks and the ModemRefclockUsers pages. Not much at either, yet. H ___ questions mailing list questions

Re: [ntp:questions] ACTS / PTB modem refclock

2007-04-24 Thread Heiko Gerstung
Dave, thank you for your fast reply. I tried exactly that configuration, but used the PTB phone number (which works in a test with cu, as described). When I first did not include the atdt string, ntpd said "no answer" in the syslog. When I include the "atdt" I can see no modem activity at all

Re: [ntp:questions] ACTS / PTB modem refclock

2007-04-24 Thread mills
Heiko, server 127.127.18.1 minpoll 12 maxpoll 17 phone atdt913034944774 atdt917195676742 The driver first tries NIST Boulder and if that fails USNO Boulder. Note from my office it first dials 9 for an outside line, then 1 for long distance. Dave Heiko Gerstung wrote: > Hi! > > I am currently

[ntp:questions] ACTS / PTB modem refclock

2007-04-24 Thread Heiko Gerstung
Hi! I am currently trying to setup a box which uses the ACTS refclock driver to use the PTB modem service as a time source. Unfortunately the documentation regarding this driver is not that detailed and I am therefore looking out for any working example configurations of such a driver. Every

[ntp:questions] NTP synchronized Nixie Tube Clock

2007-04-24 Thread Heiko Gerstung
Hi Guys, I just wanted to show what we are doing here at Meinberg when we want to have some fun ... (no, sorry, this is _not_ adult-only) http://www.meinberg.de/english/news/news_070423-84.htm Best Regards, Heiko ___ questions mailing list questions@