The unit I referenced has PPS. I plan to have a dedicated RPi running as ntp server.
On Oct 10, 2017 08:13, "Marius Petrescu" marius@yo2loj.ro wrote:
I used a adafruit GPS module on a Olinuxino, the advantage being that it has full fledged UART ports, so no GPIO is needed for PPS.
This is the main stratum 1 source for my network. It is available as stratum 2 on yo2tm.ampr.org.
Marius, YO2LOJ
On 10.10.2017 18:00, John D. Hays wrote:
I have one of these on order https://learn.adafruit.com/adafruit-ultimate-gps-hat-for-ras pberry-pi/overview?view=all
On Oct 10, 2017 02:33, "Ruben ON3RVH" on3rvh@on3rvh.be wrote:
Well, an rPi can be a Stratum1 if it uses the PPS output from the GPS
clock imho. (and from what I found on the net a few years ago) If it does not use PPS output it cannot be a Stratum1 imho because the jitter will be too high
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