[tacgps] Re: [time-nuts] Any Spectracom hackers out there?

[John Ackermann N8UR]

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