Matt, Thanks for the info , I will try that on my EME setup.
73 Ken K5DNL ----------------------------------------------------------------- --- On Wed, 6/1/11, Matt Zilmer <[email protected]> wrote: > From: Matt Zilmer <[email protected]> > Subject: Re: [Elecraft] Clock sync > To: "Jon K Hellan" <[email protected]> > Cc: [email protected] > Date: Wednesday, June 1, 2011, 10:01 AM > I was using NetTime up until last > year. Works fine, is free, etc. > > Another way to sync time works well if you use the K3EXREF > and have a > GPS-DO running. Using Lady Heather (check out the > icon), you can run > command line options at start up. One of the cmd line > options is /ts, > which sets the Windoze clock to be the same time as the GPS > receiver > (with some amount of software overhead, of course). > This is good down > to a few mS, at least as observed here. And you can > set the program > up to run at start-up time, plus sync periodically with the > same cmd > line option. I have mine set to sync hourly, which is > probably good > enough for us common folks... > > That second approach isn't for everyone, obviously, but it > works > reliably and performs consistently. OTOH, it's only > good if you have > the hardware in place so it's not great for portable or > away-from-the-shack ops. > > The Win32 program, "Lady Heather's Disciplined Oscillator > Control > Program" can be found at www.ke5fx.com. This program > is designed for > the Trimble Thunderbolt GPS-DO, which is readily available > in > aftermarket and salvage over various web sites (eBay for > example), and > its price ranges from $40 to $150 per unit. Low > bidders seem to be > doing well - there are a lot of these retired E911 units > out there. > > 73, > matt W6NIA > > On Wed, 01 Jun 2011 15:59:14 +0200, you wrote: > > >On 06/01/2011 03:23 PM, Joe Subich, W4TV wrote: > >> > >>> I think XP has this capability also and likely > Vista as well but it's > >>> been along time since I left XP for Win 7 and > have not looked back. > >> > >> All 32/64 bit versions of Windows have the ability > to sync to "Internet > >> Time." However, they only sync once a week > and do not retry in the > >> event of failure or if the computer is off, > sleeping or hibernating > >> when it is time to sync. Changing the > frequency of synchronization > >> requires registry editing and is not recommended > of users who do not > >> understand the risks. > > > >I use Meinberg's Windows implementation of NTP: > >http://www.meinberg.de/english/sw/ntp.htm. It runs on > Windows XP through > >7, as well as NT and 2000. > > > >NTP - Network Time Protocol - is an internet protocol > for synchronizing > >time. Almost all servers on the internet use it. It > isn't at all hard to > >set up. Windows 7 isn't optimal for time > synchronization, and neither is > >consumer internet, but you should be able to keep > within 100 ms of > >correct time. Linux or BSD over a well provisioned > network easily does > >better than 10 ms. Connect a GPS with Pulse per Second > (PPS) output, and > >you're in the low microseconds. > > > >73 > >Jon LA4RT > > > >> 73, > >> > >> ... Joe, W4TV > >> > >> > >> On 6/1/2011 9:06 AM, Bob Naumann wrote: > >>> Windows 7 has the ability to sync itself using > "Internet Time" so you don't > >>> need any additional software to do this. > >>> > >>> I think XP has this capability also and likely > Vista as well but it's been a > >>> long time since I left XP for Win 7 and have > not looked back. > >>> > >>> 73, > >>> > >>> Bob W5OV > >>> > >>> -----Original Message----- > >>> From: [email protected] > >>> [mailto:[email protected]] > On Behalf Of Don Wilhelm > >>> Sent: Wednesday, June 01, 2011 8:02 AM > >>> To: Rich - K1HTV > >>> Cc: [email protected] > >>> Subject: [Elecraft] Clock sync > >>> > >>> Rich and all, > >>> > >>> D4 does not state that it runs on Win7 or > Vista. You might try the > >>> freeware Atomic Clock Sync from > >>> http://www.worldtimeserver.com/atomic-clock/ as an > alternative. Version > >>> 3.0 runs on Win 2K, XP, Vista or Win7 (but not > 64 bit). The older > >>> version runs on earlier versions of Windows. > >>> > >>> 73, > >>> Don W3FPR > >>> > >>> On 6/1/2011 8:43 AM, Rich - K1HTV wrote: > >>>> Don, > >>>> Do you run > software to keep you PC clock in sync with UTC? If not, you > >>> won't > >>>> have much if any success making JT65A > contacts. I use Dimension 4, and > >>> have set > >>>> it to sync my PC clock every 5 minutes. D4 > is a free download and works > >>> well. Do > >>>> you use JT65HF software or the original > WSJT software by K1JT for JT65A? > >>> I find > >>>> the JT65HF software by W6CQZ to be much > easier to use. Is your transmitter > >>>> stable? Too much drift and you won't be > copied. > >>>> > >>> > ______________________________________________________________ > >>> Elecraft mailing list > >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> Help: http://mailman.qth.net/mmfaq.htm > >>> Post: mailto:[email protected] > >>> > >>> This list hosted by: http://www.qsl.net > >>> Please help support this email list: http://www.qsl.net/donate.html > >>> > >>> > ______________________________________________________________ > >>> Elecraft mailing list > >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> Help: http://mailman.qth.net/mmfaq.htm > >>> Post: mailto:[email protected] > >>> > >>> This list hosted by: http://www.qsl.net > >>> Please help support this email list: http://www.qsl.net/donate.html > >>> > >> > ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:[email protected] > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > > > >______________________________________________________________ > >Elecraft mailing list > >Home: http://mailman.qth.net/mailman/listinfo/elecraft > >Help: http://mailman.qth.net/mmfaq.htm > >Post: mailto:[email protected] > > > >This list hosted by: http://www.qsl.net > >Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
