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Re: NTPsec reports excessive jitter from GPSD/KPPS SHM
From: |
Gary E. Miller |
Subject: |
Re: NTPsec reports excessive jitter from GPSD/KPPS SHM |
Date: |
Mon, 9 Mar 2020 11:38:48 -0700 |
Yo Nick!
On Mon, 09 Mar 2020 16:31:11 +0000
"Nick Burkitt" <address@hidden> wrote:
> and this ntp.conf GPS/PPS configuration:
>
> # GPS Serial data reference (NTP0)
> refclock shm unit 0 refid GPS noselect
GPS should always be the last srouce in your ntp.conf
> # GPS PPS reference (NTP1)
> refclock shm unit 2 minpoll 3 maxpoll 3 refid PPS prefer
PPS should always be the first source in your ntp.conf.
Except, you have them backwards. Your PPS is on SHM(0) and your
GPS is on SHM(2). Assuming: gpsd -n /dev/pps0 /dev/ttyACMx
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
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- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, (continued)
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Greg Troxel, 2020/03/09
- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, Nick Burkitt, 2020/03/09
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/09
- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, Nick Burkitt, 2020/03/09
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/09
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/09
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM,
Gary E. Miller <=
- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, Nick Burkitt, 2020/03/09
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/09
- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, Nick Burkitt, 2020/03/09
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/09
- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, Nick Burkitt, 2020/03/10
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/10
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Paul Theodoropoulos, 2020/03/10
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Gary E. Miller, 2020/03/10
- Re[2]: NTPsec reports excessive jitter from GPSD/KPPS SHM, Nick Burkitt, 2020/03/10
- Re: NTPsec reports excessive jitter from GPSD/KPPS SHM, Paul Theodoropoulos, 2020/03/10