Re: [Elecraft] Clock accuracy and JT-65

[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
> 
> 





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Re: [Elecraft] Clock accuracy and JT-65

[Rick WA6NHC]

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  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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Re: [Elecraft] Clock accuracy and JT-65

[Tony Estep]

On Sun, Aug 28, 2016 at 4:30 PM, John R. Lonigro  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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[Elecraft] 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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