I finally powered up my Trimble Thunderbolt (E) with a Motorola
antenna. There is a 10 MHz output. Unfortunately, I can't get Lady
Heather to tun more than 20 seconds without locking up. I have the
same issue on 3 computers - a Lenova Windows XP desktop with serial
port, a Toshiba laptop (USB
On 03/06/2015 10:29 PM, Magnus Danielson wrote:
I have checked several sources, and they match up with the IEEE 1139 in
this regard.
I have also evaluated the equation for Allan variance for the random
walk noise, and it matches up with the references and what I put here:
Hi Wolfgang,
Have a look at the 20 plots in:
http://leapsecond.com/pages/allan/Exploring_Allan_Deviation_v2.pdf
This shows phase/frequency/ADEV+MDEV and PSD for 5 noise types. Zoom the PDF
400x if necessary. This was generated with Stable32 and should be 100% correct.
See if your results
Hi folks,
Had a recent requirement at $DAYJOB to give our NTP architecture a good swift
kick in the pants. High precision is not a particular requirement (1 ms is
more than adequate) but high reliability is. I'm about done with explaining
the difference between the two to people internally
Ones ive deployed:
End run. BSD
Microsemi S350 LINUX
Meinberg MRS LINUX
Others:
Spectra com
Brandywine
The three i used were all very good. You want more re details I will put
some effort into it.
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To
I run a Symmetricom Syncserver S300 at home and am trying to convince the
fine folks at work that running ntpdate every 15 minutes is about the
worst possible way to set time. I'm in the NTP.org pool but am open to
direct peering if you ever get something setup:
The exact architecture you need depends a lot on how your company is
geographically distributed and the network that connects those parts.
If you have decided you want to run your own stratum 1 NTP servers
then you'd place a few of those in each plant or in each city. Then your
next level
Lady Heather is set up to run the serial port at 9600,8,N,1 If it sees data
errors, after around 20-35 seconds or so, it toggles to 9600,8,O,1 This
feature was added to support the Trimble Resolution timing receivers. You can
try the /rt command line option and see if that makes any