Получение точного времени через GPS/Glonass/en: различия между версиями

Новая страница: «time2 1.0 is a time offset from GPS TK GPS PPP and asynchronous PPP and if there is no offset of the NTP tranchet driver 20 – selected experimentally by the met…»
(Новая страница: «Edit /etc/ntp.conf»)
(Новая страница: «time2 1.0 is a time offset from GPS TK GPS PPP and asynchronous PPP and if there is no offset of the NTP tranchet driver 20 – selected experimentally by the met…»)
Строка 35: Строка 35:
fudge 127.127.20.0 flag1 1 flag2 0 time2 1.0 refid GPSP
fudge 127.127.20.0 flag1 1 flag2 0 time2 1.0 refid GPSP


time2 1.0 - это смещение времени гпс от ппс тк гпс и ппс асинхронны и если нет смещения то нтп отбранкует драйвер 20 – подбирается экспериментально по методике ниже (но думаю что для всех виренбордов 5 будет 1.0 (для пи2 у меня получилось 0.7)) https://support.ntp.org/bin/view/Support/ConfiguringNMEARefclocks
time2 1.0 is a time offset from GPS TK GPS PPP and asynchronous PPP and if there is no offset of the NTP tranchet driver 20 – selected experimentally by the method below (but I think that all firebord 5 will be 1.0 (for PI2 I got 0.7)) https://support.ntp.org/bin/view/Support/ConfiguringNMEARefclocks


if you want a good estimation for fudge time2 (perhaps because PPS is not an option for you) you could use the following procedure:
if you want a good estimation for fudge time2 (perhaps because PPS is not an option for you) you could use the following procedure:
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