On 07/29/2010 03:57 PM, Mark Sims wrote:
Yes,  there is a time sync command that causes the program to set the system 
clock at periodic intervals or whenever it differs from GPS by a given amount.
I'm still out on the "Project From Hell Mark II" and I don't remember all the 
gory details...  I think /TSA on the command line  says sync the time whenever the clocks 
differ by a millisecond.  There is also /TSO /TSD /TSH /TSM /TSS to set it once, hourly, 
daily, every minute or second.  There is also a /TSX command to specify the time offset 
from the Tbolt serial command to GPS (which is usually around 45 milliseconds).  TS from 
the keyboard just syncs the clock once.                                     
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I realize this request is for Windows, but I thought I'd mention this for the benefit of others.

I'm using tboltd by Ralph Smith on Linux. It provides the time to ntpd and LH 3.00 beta can talk to tboltd via the TCP connection, so monitoring can happen at the same time as the ntpd. It works great on Linux, as well as BSD (for which it was designed):
  http://www.mail-archive.com/[email protected]/msg26129.html

It runs well under wine like this:
wine heather.exe /IP=localhost:45000 /TW=250

The /etc/ntp.conf config file stanza looks like this. (I admit I've guessed at the 0.0275 delay.)

# for attached GPS
tos mindist 0.030
server 127.127.28.0 minpoll 4 maxpoll 4 prefer
fudge 127.127.28.0 time1 0.0275 stratum 1 refid GPS

Serious use would probably call for a Soekris box, but not so serious use lets me use the tbolt time signal for free, as I have it on for the 10MHz reference.

Leigh/WA5ZNU


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