Clock accuracy and JT-65

[John R. Lonigro]

As I understand it, JT65 requires a highly accurate clock, accurate to
less than a second.  However, unless the KX3 is capable of
encoding/decoding JT65, that accuracy is required in the computer doing
the encoding/decoding, not the radio.  Sure, it would be nice if the KX3
clock were more accurate, but I can't see what practical use that
feature would have, other than preventing you from jumping the gun at
Field Day.  And setting the clock the night before Field Day would solve
that problem.

73,

John AA0VE

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[Tony Estep]

On Sun, Aug 28, 2016 at 4:30 PM, John R. Lonigro <[hidden email]> wrote:

> ....that accuracy is required in the computer doing the encoding/decoding,
> not the radio....
>
============
Correct. There are various automated schemes for making sure that the
computer clock is accurate; some have been discussed on this forum in the
past. With Windows 8 and later you can sync manually with government time
standards by clicking on the time in the lower right of the taskbar and
working through the menus.

Tony KT0NY
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[Rick WA6NHC-2]

do NOT trust Windows to set time accurately (and only once a day too).  
They've mangled NTP so badly that it has a five minute accuracy
window... if you want your computer to be accurate, replace the MS
client with Meinburg.  Mine stays within a few milliseconds now, easily
close enough for ham tasks.

Rick nhc


On 8/29/2016 8:40 AM, Tony Estep wrote:

> On Sun, Aug 28, 2016 at 4:30 PM, John R. Lonigro <[hidden email]> wrote:
>
>> ....that accuracy is required in the computer doing the encoding/decoding,
>> not the radio....
>>
> ============
> Correct. There are various automated schemes for making sure that the
> computer clock is accurate; some have been discussed on this forum in the
> past. With Windows 8 and later you can sync manually with government time
> standards by clicking on the time in the lower right of the taskbar and
> working through the menus.
>
> Tony KT0NY
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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[ab2tc]

Hi all,

I couldn't agree more. I have had Meinberg NTP on both my computers for a decade or more and it works perfectly. While I can't tell that it is ms accurate (I have no doubt that it is) but it is certainly totally synced to WWV as determined by the ear and eyes. Just Google it, install it and use it. What MS supplies with Windows is junk.

AB2TC - Knut

Rick WA6NHC-2 wrote

do NOT trust Windows to set time accurately (and only once a day too).  
They've mangled NTP so badly that it has a five minute accuracy
window... if you want your computer to be accurate, replace the MS
client with Meinburg.  Mine stays within a few milliseconds now, easily
close enough for ham tasks.

Rick nhc


<snip>