[time-nuts] GPS Locked and Unlocked Performance Comparison

[Brian Kirby]

Its interesting that the Miller/Jupiter design appears to outperform 
everything except the Z3801, in the GPS locked modes.  Maybe the KISS 
principle at work.

SAIDJACK at aol.com wrote:
> Hello Tom,
>  
> excellent web-page! That looks like a lot of work was done.
>  
> Would you have data for 24 hour hold-over performance (86400s ADEV)  for 
> these units?
>  
> thanks,
> bye,
> Said
>  
>  
> In a message dated 2/11/2008 21:17:49 Pacific Standard Time,  
> tvb at LeapSecond.com writes:
>
> Sifting  through old data, in addition to recent measurements
> made in the past few  months, I have 4 very interesting plots
> of GPSDO performance.
>
> The  goal was to see real-life plots of disciplining in action by
> contrasting  free (unlocked) vs. GPS-locked performance as
> compared with my 10 MHz house  reference. The four GPSDO
> measured so far are: Z3801A, Fury, Thunderbolt,  and Miller.
>
> http://www.leapsecond.com/pages/gpsdo/
>
> Comments  & questions welcome.
>
> I hope to measure quite a few more this year.  Contact me
> offline if you want your favorite one included in the list.  Note
> that I'm not necessarily looking for the best GPSDO; instead,
> for  this page at least, the more variety the  better.
>
> /tvb
>
>
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