The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver...
Meinberg - Professionelle Lösungen für Zeit- und Frequenzsynchronisation mit Funkuhren, GPS Funkuhren, PC Uhren und Zeitservern
Time Server, DCF77 radio clocks, GNSS Satellite Receiver, GPS Satellite Receiver, NTP Time Server, PCI and PCI-Express Slot Cards and Accessories for Time and Frequency...