[ntp:questions] PPS signal from Garmin GPS 18x LVC

Adrian P mailing-lists at pascalau.ro
Sun Dec 29 23:51:25 UTC 2013


On 30 December 2013 00:13, Steve Kostecke wrote:
> On 2013-12-29, Adrian P wrote:
>
>> So "o" means PPS is used... In my case, I only have "*" in front of
>> the driver IP...
>
> In my experience the NMEA driver displays the '*' talley-code even when
> PPS is in use.

Hi Steve,

Are you sure of that? I am looking to David Taylor's output and I see
the "o" tally code, see below:

On 29 December 2013 07:59, David Taylor wrote:
> FreeBSD PC Pixie:
>
> server  127.127.20.1    mode 0  minpoll 4 maxpoll 4  prefer
> fudge   127.127.20.1    flag1 1 flag3 1 refid PPS
>
> C:\Users\David>ntpq -crv -pn pixie
> associd=0 status=041f leap_none, sync_uhf_radio, 1 event,
> stale_leapsecond_values,
> version="ntpd 4.2.7p406 at 1.2483 Sat Dec 28 16:28:47 UTC 2013 (1)",
> processor="i386", system="FreeBSD/8.2-RELEASE-p6", leap=00, stratum=1,
> precision=-19, rootdelay=0.000, rootdisp=1.000, refid=PPS,
> reftime=d66a36ed.19d84794  Sun, Dec 29 2013  5:51:41.100,
> clock=d66a36ed.b372d389  Sun, Dec 29 2013  5:51:41.700, peer=32026, tc=4,
> mintc=3, offset=0.007628, frequency=28.823, sys_jitter=0.001907,
> clk_jitter=0.003, clk_wander=0.007, tai=35, leapsec=201207010000,
> expire=201312010000
>      remote           refid      st t when poll reach   delay   offset
> jitter
> ==============================================================================
> o127.127.20.1    .PPS.            0 l    -   16  377    0.000    0.008
> 0.002

Now I am wondering if there is any other way to see if the PPS signal
is used or not... maybe with some debugging?

Adrian


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