"Alby VA" <alb...@empire.org> wrote in message
news:66d5d8bc-f063-4f3e-a6d8-676a9b045...@w1g2000vbx.googlegroups.com...
[]
The Stratum 0 devices is SureGPS and its running on FreeBSD as the OS
and AMD for the chip.
FreeBSD godzilla.empire.org 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue
Feb 21 22:13:35 EST 2012 amd64
Offset on an Intel Atom with a GPS 18 LVC here is well within 10
microseconds, FreeBSD 8.2. I would expect the Sure to be similar.
http://www.satsignal.eu/mrtg/pixie_ntp.html
associd=0 status=0419 leap_none, sync_uhf_radio, 1 event, leap_armed,
version="ntpd 4.2.7p255@1.2483 Fri Feb 10 06:04:36 UTC 2012 (1)",
processor="i386", system="FreeBSD/8.2-RELEASE-p6", leap=00, stratum=1,
precision=-19, rootdelay=0.000, rootdisp=1.180, refid=PPS,
reftime=d3095c8b.e6660497 Tue, Mar 13 2012 5:41:31.899,
clock=d3095c98.0f62614f Tue, Mar 13 2012 5:41:44.060, peer=8406, tc=4,
mintc=3, offset=0.003, frequency=27.803, sys_jitter=0.002,
clk_jitter=0.003, clk_wander=0.003, tai=34, leapsec=201207010000,
expire=201212280000
Even on Windows it's within 50 microseconds (by eye):
http://www.satsignal.eu/mrtg/alta_ntp_2.html
You could update to the latest ntp.
Cheers,
David
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