In a message dated 09/04/2005, shammon1@............. writes:

If you  don't have a GPS, as I said, the software comes with an extensive
list of  network time servers that can be accessed via the Internet to  obtain
accurate time. Overall, the experience with this software package  has been
very positive and after 30-days of testing I'm now recommending it  to other
members of the Public Seismic Network.



Hi Steve,
 
    Does it give any timing accuracies in milli  seconds for the various time 
servers? 
 
    One of the problems with time services is that  while the signal may 
leave the server on time, it may be digitally delayed on  it's way though the 
telecom system. Since there are many services now operating,  the inaccuracy 
around some timing marks may be very significant. 
 
    What timing errors have you measured, please?
 
About the Public NTP Time Server Lists 
 
The lists are provided for information purposes only and represent the best  
information available at the current date. The operators of the servers listed 
 do not commit to provide time service other than on a volunteer basis and 
with  no guarantee of accuracy or availability. Further information of a 
technical  nature can be obtained from the _www.ntp.org_ (http://www.ntp.org/)  site, 
the _comp.protocols.time.ntp_ (news:comp.protocols.time.ntp)  newsgroup, or 
the _NTP Support_ (http://ntp.isc.org/bin/view/Support/WebHome)  Web. 
    Regards,
 
    Chris Chapman
 
     






In a message dated 09/04/2005, shammon1@............. writes:
<=
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=3D2>If you=20
  don't have a GPS, as I said, the software comes with an extensive
list=20=
of=20
  network time servers that can be accessed via the Internet to=20
  obtain
accurate time. Overall, the experience with this software packag=
e=20
  has been
very positive and after 30-days of testing I'm now recommendin=
g it=20
  to other
members of the Public Seismic Network.
=


Hi Steve,
 
    Does it give any timing accuracies in mill=
i=20
seconds for the various time servers? 
 
    One of the problems with time services is that=20
while the signal may leave the server on time, it may be digitally delayed o=
n=20
it's way though the telecom system. Since there are many services now operat=
ing,=20
the inaccuracy around some timing marks may be very significant. 
 
    What timing errors have you measured, please?
 
About the Public NTP Time Server Lists 

The lists are provided for information purposes only and represent the be=
st=20
information available at the current date. The operators of the servers list=
ed=20
do not commit to provide time service other than on a volunteer basis and wi=
th=20
no guarantee of accuracy or availability. Further information of a technical=
=20
nature can be obtained from the www.ntp.org site, the comp.protocols.time.ntp newsgroup, or the NTP Support Web.=20

    Regards,
 
    Chris Chapman