This is for rpi002.Graphs.

Hardware:

Type.	Description.	Sponsor	Webshop
CPU	Raspberry Model B Revision 2.0 Mounting holes, Single-core 700Mhz BCM2835 , 512 MB 000d	None	None
PSU	Cheap USB PSU	None	None

Here is the current time sync status +/- 2 msec. total on the graph.

Here is the time sync status 10.0k = 0.010 ms on the graph.

I have made a start image of the linux installation i plan to use. - Guide will bee added soon.

Later i plan to upgrade with gps sync. And multible units.

Log

2017-02-06 Short power outage. - Have to try power cycle, wating a few dayes.
2016-10-14 Set minpoll=3(8sec) and maxpoll=7(256sec) and using 5 GPS sync local NTP servers. -
2016-10-13 Set minpoll=3(8sec) and maxpoll=6(64sec) and using 4 GPS sync local NTP servers. -
2016-10-12 Set minpoll=3(8sec) and maxpoll=5(32sec) and using 4 GPS sync local NTP servers. - Small noticeable change from yesterday
2016-10-11 Set minpoll=3(8sec) and maxpoll=4(16sec) and using 4 GPS sync local NTP servers. - Not noticeable change from yesterday
2016-10-10 Set minpoll=3(8sec) and maxpoll=3(8sec) and using 4 GPS sync local NTP servers.
2016-10-09 Set minpoll and maxpoll lower (3-4) - this helps on getting delta offset lower.
2016-09-22 Added "more" NTP servers and test if delta offset in getting lower..Look around 22 clock.
2016-08-17 MRTG Grap was changed to scale +- 2 ms on this page
2016-08-09 It was installed - using NTP Sync from 3 pcs stratum 1 serveres in Germany.