[time-nuts] Any Spectracom hackers out there?
John Ackermann N8UR
jra at febo.com
Sun Oct 24 15:44:22 EDT 2004
Poul-Henning Kamp wrote:
> In message <417BFF07.5050203 at febo.com>, John Ackermann N8UR writes:
>
>
>>Oh, by the way -- you can see the 8170 jump when phase lock is lost at
>>http://www.febo.com/stats/ntp -- scrolling down through the graphs will
>>show you the current day plus two previous days of offset information
>>via ntp. I plot performance of my two Z3801As as well as the 8170.
>
>
> Stupid question time: Isn't the problem here that the internal
> 10Mhz should be calibrated better ?
Good point, it might be possible to trim it closer, but it's still a far
less stable source than the external reference. Spectracom apparently
knew this could be a problem, since they had an option to allow an
external reference to kick in when lock was lost; my unit doesn't have
that option, so I'm experimenting...
John
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