[time-nuts] Fury ntp refclock

Tue Jul 8 06:26:55 UTC 2008

This is on a net4501 with the TMRIN mod running FreeBSD 7.0 (nanobsd).
Fury 1.18 firmware with a surplus LPRO-101 packaged up in an old 1U Datum
670x rubidium reference chassis.

 > ntptime
ntp_gettime() returns code 0 (OK)
   time cc1d84fd.0fbd3800  Tue, Jul  8 2008  6:17:33.061, (.061481758),
   maximum error 1480 us, estimated error 15 us, TAI offset 0
ntp_adjtime() returns code 0 (OK)
   modes 0x0 (),
   offset -0.014 us, frequency -0.040 ppm, interval 1 s,
   maximum error 1480 us, estimated error 15 us,
   status 0x2001 (PLL,NANO),
   time constant 4, precision 0.001 us, tolerance 496 ppm,
 >

 > ntpq -c peers
      remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+REFCLK(45,0)    .GPS.            0 l   13   16  377    0.000   -1.152   3.108
oPPS(0)          .PPS.            0 l    4   16  377    0.000    0.000   0.015
 >

clockstats:
54655 22687.015 127.127.45.0 94 1 0 0 5.09e-12 -1.10e-09 46.10 1.994153 0.000004 10.53 8 9 1 38 10
54655 22697.016 127.127.45.0 94 1 0 0 4.59e-12 -1.40e-09 46.00 1.994255 0.000004 10.53 8 9 1 38 10
54655 22707.017 127.127.45.0 94 1 0 0 4.29e-12 -1.60e-09 46.10 1.994454 0.000004 10.53 8 9 1 38 -11
54655 22717.017 127.127.45.0 94 1 0 0 3.56e-12 -1.90e-09 46.10 1.994834 0.000004 10.53 9 9 1 38 4
54655 22727.018 127.127.45.0 94 1 0 0 3.29e-12 -2.10e-09 46.10 1.994912 0.000004 10.53 9 9 1 36 -6
54655 22737.010 127.127.45.0 94 1 0 0 2.35e-12 -2.30e-09 46.10 1.994695 0.000004 10.53 9 9 1 36 -14
54655 22747.010 127.127.45.0 94 1 0 0 2.08e-12 -2.60e-09 46.10 1.994872 0.000004 10.53 9 9 1 36 -13
54655 22757.011 127.127.45.0 94 1 0 0 1.43e-12 -2.80e-09 46.10 1.995252 0.000004 10.53 9 9 1 36 0
54655 22767.012 127.127.45.0 94 1 0 0 1.16e-12 -3.00e-09 46.10 1.995357 0.000004 10.53 9 9 1 36 -5
54655 22777.012 127.127.45.0 94 1 0 0 8.07e-13 -3.20e-09 46.10 1.995337 0.000004 10.53 9 9 1 36 3
54655 22787.014 127.127.45.0 94 1 0 0 5.83e-13 -3.40e-09 46.10 1.995080 0.000004 10.53 9 9 1 36 -8

	Scott

SAIDJACK at aol.com wrote:
> Hi guys,
>  
> We formatted the syst:stat? command on the Fury GPSDO so as to be  compatible 
> to GPSCon, that meant following a very rigorous syntax (including the  exact 
> number of spaces etc), it's not pretty - but works perfectly with  GPSCon.
> 
> One note of interest to the group in general: some of our future  products 
> have a new, very high performance mobile GPS on them that will actually  track 
> and output 16 Sats and more simultaneously (well, if it could see the Sats  it 
> would receive more than 30 channels) to GPSCon. A far cry from the 8-sat  
> Oncore days, and this is causing some grief for GPSCon (not the entire list of  
> Sat's can be shown by GPSCon without overflowing the page etc). We can't reveal  
> the GPS details just yet though, please don't ask :)
>  
> Seems the web interface of GPSCon works well with any number of Sats  though, 
> see for example:
>  
>    _http://www.jackson-labs.com/images/gpsstat.htm_ 
> (http://www.jackson-labs.com/images/gpsstat.htm) 
>  
>  
> We are working hard on a set of new products right now, so the ptime  command 
> changes will have to be put on a slightly lower priority for now  
> unfortunately. Seems your driver is working well right now though from what I  can gather 
> in the email thread.
>  
> Thanks for your hard work on this,
> bye,
> Said
>  
> 
>  
>  
> In a message dated 7/8/2008 02:09:12 W. Europe Daylight Time,  smace at intt.net 
> writes:
> 
> 
> The  gps?,sync?,diag?,meas? results were easier to parse than the  
> system:status?
> since everything has a prefix.
> 
> I'm not a fan of a the  system:status? command, but it would be nice to get
> sat signal strength  from the gps? command tree.
> 
> My driver is not ideal, but it works with  what the Fury can do with the 
> current
> firmware.  More to  come.
> 
> Scott
> 
> 
> 
> 
> 
> **************Gas prices getting you down? Search AOL Autos for 
> fuel-efficient used cars.      (http://autos.aol.com/used?ncid=aolaut00050000000007)
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