ScottyG wrote:
[]
What do you think you can achieve with let say 5,000-10,000 USD
budget for each data center? Could we get 1 micro, 10 micro, 100
micro, 1 milli?
One catch is the not all the data centers have access to roof space
for us. One company claims that they can use CDMA as a source
The time on my cellphone is routinely more than 3 seconds off of GPS time.
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Harlan Stenn st...@ntp.org
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ScottyG wrote:
The company I am working for needs to be able to record timestamps in a
trading
system logs down to a .1 microsecond accuracy.
One other detail. This system will need to handle leap seconds,
something that normal operating systems handle badly.
ScottyG wrote:
What do you think you can achieve with let say 5,000-10,000 USD
budget for each data center? Could we get 1 micro, 10 micro, 100
micro, 1 milli?
I think your biggest cost will be consultancy with the OS supplier and
hardware suppliers. You need internals knowledge that
On 13 Mai, 04:58, Dave Hart daveh...@gmail.com wrote:
On May 9, 3:24 pm, David J Taylor wrote:
Folks, I made some tests with various settings for the NMEA driver and the
results are here:
http://www.satsignal.eu/ntp/NTP-on-Windows-serial-port.html#usb
Congratulations on showing serial
Richard B. Gilbert rgilber...@comcast.net writes:
Harlan Stenn wrote:
The time on my cellphone is routinely more than 3 seconds off of GPS time.
Is your cell phone CDMA? Other technologies, there are several, may
not require the precise timing that CDMA does!
It will be hard for them to get
Unruh unruh-s...@physics.ubc.ca wrote:
Richard B. Gilbert rgilber...@comcast.net writes:
Harlan Stenn wrote:
The time on my cellphone is routinely more than 3 seconds off of GPS time.
Is your cell phone CDMA? Other technologies, there are several, may
not require the precise timing that
In CDMA, the time that you see displayed on your phone is a data
service, not necessarily related to the GPS timebase directly pulled
from the TDM layer.
-Original Message-
From: questions-bounces+gdowd=symmetricom@lists.ntp.org
Rob nom...@example.com writes:
Unruh unruh-s...@physics.ubc.ca wrote:
Richard B. Gilbert rgilber...@comcast.net writes:
Harlan Stenn wrote:
The time on my cellphone is routinely more than 3 seconds off of GPS time.
Is your cell phone CDMA? Other technologies, there are several, may
not
Unruh unruh-s...@physics.ubc.ca wrote:
Rob nom...@example.com writes:
Unruh unruh-s...@physics.ubc.ca wrote:
Richard B. Gilbert rgilber...@comcast.net writes:
Harlan Stenn wrote:
The time on my cellphone is routinely more than 3 seconds off of GPS time.
Is your cell phone CDMA? Other
Rob wrote:
Unruh unruh-s...@physics.ubc.ca wrote:
No it requires the network to send the time when requested. Eg, Rogers
in Canada (GSM) does deliver the time but I have no idea what its
accuracy is.
How dumb... something like time-of-day should be broadcast just like
cell broadcast and
No it requires the network to send the time when requested. Eg,
Rogers in Canada (GSM) does deliver the time but I have no idea
what its accuracy is.
How dumb... something like time-of-day should be broadcast just
like cell broadcast and everyone would be able to receive it without
any
On Jun 5, 2009, at 3:58 PM, Rick Jones rick.jon...@hp.com wrote:
No it requires the network to send the time when requested. Eg,
Rogers in Canada (GSM) does deliver the time but I have no idea
what its accuracy is.
How dumb... something like time-of-day should be broadcast just
like cell
Hello,
We have a system in which we normally synchronize computers to GPS
time through a couple of receivers. There may also be long time
periods when the GPS is not available and the system gets isolated.
There is no internet connection to get the time from. When the system
is up and running, it
Hi,
We are using NTP on Vxworks. When we configure 3 NTP servers on a
client, the client always tends to synchronize with the server that was
configured first, irrespective of the stratum number. Is this the
expected behavior?
Also, there is a random increase in the minpoll of the
David Woolley wrote:
James wrote:
I have NTP setup as a heartbeat service in a two-node cluster. If I
was to offer this service to the public pool, would there be an issue
with hosts using it when the service failed over to the other node? I
NTP should not be failed over. It
Unruh wrote:
Richard B. Gilbert rgilber...@comcast.net writes:
Unruh wrote:
Richard B. Gilbert rgilber...@comcast.net writes:
Harlan Stenn wrote:
The time on my cellphone is routinely more than 3 seconds off of GPS time.
Is your cell phone CDMA? Other technologies, there are several,
Richard B. Gilbert wrote:
I don't travel excessively! I live in NJ and travel
to/through PA, DE, MD, NY, CT, MA. The parts of these
states I have been to/through all seem to have adequate
cell phone coverage although I'm sure that there must
be a few places without it; I haven't found
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