NMEA spec says only that seconds in the sentence need to apply the second in
which they appear this means there could be half or even full second error they
need not be synchronized with the second tick.
Most GPS receivers do better then the standard that they don't have to
The generic NMEA G
On Sun, Apr 24, 2016 at 4:15 PM, Chris Albertson
wrote:
> Did you see the notice on the adafruit 2324 web page that reads "Does
> not work with the Pi 3 at this time".
>
I would assume that's because the Pi3 uses /dev/ttyAMA0 for Bluetooth.
Here is how to route ttyAMA0 back to the IO pins on th
> Le 24 avr. 2016 à 20:51, jan hugo prins a écrit :
>
> Hi,
>
> To get a more stable NTP source into our production network I have
> started exprerimenting with a Raspberry PI 3 with a GPS head. GPS data
> is coming in fine, but the time is jumping around like a wild horse. The
> result is that
-Original Message-
From: jan hugo prins
Sent: Sunday, April 24, 2016 7:51 PM
To: time-nuts@febo.com
Subject: [time-nuts] Raspberry PI 3 NTP server with GPS time data.
Hi,
To get a more stable NTP source into our production network I have
started exprerimenting with a Raspberry PI 3 with
In my own experience, using the PA6H (AdaFruit) with GPSD as an NTP source
doesn’t work. By contrast, the PPS using the kernel module PPS timestamp driver
works exceptionally well.
The issue with gpsd with this module is that the time reported in the NMEA
sentences always has 0s for the sub-sec
Did you see the notice on the adafruit 2324 web page that reads "Does
not work with the Pi 3 at this time".
OK assume they have fixed the problem...
Try using the #20 reference clock. It works with any generic GPS that
outputs NMEA sentences and PPS. Set the Flag1 to enable PPS.
What you have
Jan
IS the GPS antenna "outside" with a clear view of the sky say at least
down to 20 degrees elevation or is it "inside" the building?
Dave
On 4/24/2016 2:51 PM, jan hugo prins wrote:
Hi,
To get a more stable NTP source into our production network I have
started exprerimenting with a Rasp
