[OKDXA] FT8 and Computer Time

Wed Oct 23 12:15:14 EDT 2019

Check out
Http://time.is

73

-Steve
NE5SD

On Wed, Oct 23, 2019, 10:58 AM Peter Laws N5UWY <n5uwy at arrl.net> wrote:

> I've posted this many times to many groups over the years.  Started so
> long ago, XP was still a thing.  If you are using Windows XP, BTW, you
> are doing it wrong.  20 year old OSes are not illegal but it should be
> illegal to connect them to the internet.  Links are still good, but
> the ntp.org WTS link is growing old (bottom line is that Windows SNTP,
> now NTP client has gotten better but still isn't full-featured so get
> the Meinberg client and stop spending money for things that are free).
>   GM8ARV provides the satsignal.eu site, and you can see who developed
> NTP below.
>
> Posted by me to other lists over the years:
>
> Time comes up here all the time.  XP's SNTP client isn't very robust
> and, by default, only checks the time once/week.  W7's is better but
> not by much.  Go here if you want to make it work a little better:
> http://support.ntp.org/bin/view/Support/WindowsTimeService
>
> Meinberg's NTP client for Windows is far better since it's the
> reference client compiled and packaged for Windows.  This site steps
> you through installation and configuration.  The software is free.
> http://www.satsignal.eu/ntp/setup.html
>
> All the RFCs for NTP and most of the software have come from a group
> at the University of Delaware lead by W3HCF.  Details
> http://www.eecis.udel.edu/~mills/backroom.html
>
> There is no reason to ever have your system clock be more than a few ms
> off UTC.
>
> <EOF>
>
>
>
> On Tue, Oct 22, 2019 at 10:14 AM N5OK <coyday62 at gmail.com> wrote:
> >
> > Jeff,
> >
> > Great tip.  I use D4 plus time fudge.  I try to keep as many pluses as
> > minuses in the DT column.
> >
> > On Tue, Oct 22, 2019 at 9:29 AM Jeff Martin <jeffmartin at valornet.com>
> wrote:
> >
> > >   Ever wonder why you are not decoding the FT8 station, or he is not
> > > decoding you? Perhaps your computer or his computer time is off. My
> laptop
> > > time will drift by a couple of seconds over a day's period of time.
> Timing
> > > is critical with the sequencing of FT8 or FT4 signals. If you have your
> > > computer set to sync with a windows time source, that may be
> sufficient.
> > > Some use other programs like Dimension 4 (D4). I use a little hockey
> puck
> > > USB device that pulls time from the GPS satellites along with a program
> > > called NMEATime. When I was in VP2V, my hockey puck device wasn't
> working.
> > > I
> > > didn't take time to mess with it then. I later found that its port
> number
> > > had changed in windows... thank you windows... Anyway, if you don't
> have
> > > internet or for some other reason you can't sync with a time source,
> > > another
> > > handy program to have is TimeFudge, available from the QRZ page of
> W9MDB:
> > > https://www.qrz.com/db/W9MDB .
> > >   Look at the DT column showing several decodes on the display of FT8.
> The
> > > DT number should be 0.0 or close to it. If you see numbers up above 1.0
> > > plus
> > > or minus you may need to adjust your clock. A time sync program would
> do
> > > this automatically. Or you can do it manually with TimeFudge. I used
> > > TimeFudge every day from VP2V... when I remembered... hi... Hope this
> > > helps...
> > >
> > > 73,
> > > Jeff - K5WE
> > >
> > >
> > > ______________________________________________________________
> > > OKDXA mailing list
> > > Home: http://mailman.qth.net/mailman/listinfo/okdxa
> > > Help: http://mailman.qth.net/mmfaq.htm
> > > Post: mailto:OKDXA at mailman.qth.net
> > >
> > > This list hosted by: http://www.qsl.net
> > > Please help support this email list: http://www.qsl.net/donate.html
> > >
> >
> >
> > --
> > Coy C Day, N5OK
> > 20685 SW 29
> > Union City, OK 73090
> > H(405) 483-5632 C(405) 448-2368
> > n5ok at arrl.net
> > ______________________________________________________________
> > OKDXA mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/okdxa
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:OKDXA at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> --
> Peter Laws | N5UWY | plaws plaws net | Travel by Train!
> ______________________________________________________________
> OKDXA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/okdxa
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:OKDXA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>