Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread William Unruh
On 2021-06-10, chris wrote: > > Not familar with chrony, but why not go back to basics, run a stock > ntpd, which works out of the box. Why make life difficult, when ntpd has > more than adequate precision for the task ?. Experiment with other > solutions once the basics are known working and

Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread chris
On 06/10/21 03:17, William Unruh wrote: On 2021-06-09, chris wrote: On 06/09/21 22:00, ProGeek wrote: On Wednesday, June 9, 2021 at 6:56:04 PM UTC+3, chris wrote: On 06/08/21 20:42, Andreas Mattheiss wrote: Hello, just as additional source of information: I have a similar setup here (ublox

Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread Charles Elliott
You might want to take a look at Misra, P., & Enge, P. (2012). Chapters 1 thru (3-5) in Global Positioning System: Signals, Measurements and Performance (Second Revised ed., pp. 91-144). Lincoln, Massachusetts, USA: Ganga-Jamuna Press. The equations to solve for GPS have 4 unknowns, X, Y, Z, and

Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread Martin Burnicki
Derek Barnes wrote: I am not so sure your reasoning is correct here, Martin. Even though the "bandwidth" is greater in one direction, that only affects the "speed" of packet transfer when the link is reaching its maximum capacity. With low traffic, packets go at the same % of the speed of

Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread Derek Barnes
I am not so sure your reasoning is correct here, Martin. Even though the "bandwidth" is greater in one direction, that only affects the "speed" of packet transfer when the link is reaching its maximum capacity. With low traffic, packets go at the same % of the speed of light in both

Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread chris
On 06/09/21 22:00, ProGeek wrote: On Wednesday, June 9, 2021 at 6:56:04 PM UTC+3, chris wrote: On 06/08/21 20:42, Andreas Mattheiss wrote: Hello, just as additional source of information: I have a similar setup here (ublox PPS into a proper serial port of a PC) and I see a stable offset of -3

Re: [ntp:questions] Score is low and not raising

2021-06-10 Thread chris
On 06/08/21 20:42, Andreas Mattheiss wrote: Hello, just as additional source of information: I have a similar setup here (ublox PPS into a proper serial port of a PC) and I see a stable offset of -3 ms to 3 servers on the net (-3 ms to any of them). I'm using ntpd though. Regards Andreas