Synchronisation

Radio Synchronisation :

The main transmitters in europe are located in: United Kingdom (MSF), France (FI 162) and Germany (DCF). Signals are in Local time and contain a complete message: Hour, minute, second, day of the year, day of the week, month, year, Summer/Winter changeover.

Bodet slave clocks receive the time message, check it, and compare it to its internal clock. If there is a difference, it automatically resets the time. The clocks operate on their internal time base, in case of radio signal interruption.

Key features :

The radio synchronisation provides absolute accuracy and automatic summer/winter changeovers.

Today, most clock systems are equipped with a radio antenna 

GPS Synchronisation :

All over the world, time synchronisation can be ensured via a network of 24 satellites part of the GPS system. A specific antenna receives these timing messages in GMT* time. A good reception of three satellites is sufficient for accuracy greater than one microsecond.

The GPS antenna receives the time message every second, decodes it and sends it to the master clock.

* GMT:  Greenwich Mean Time. GMT is World Time and the basis of every world time zone which sets the time of day, and is at the centre of the time zone map.  GMT sets current time or official time around the globe. 

Note : A standalone analogue can be Radio synchronised only and some digital clocks can also be synchronised by GPS.

NTP Synchronisation :

NTP (Network Time Protocol) provides accurate and syncronised time across the Internet via
the TCP/IP networks. Most of our products adhere to this open worldwide standard in various ways.

Please contact us for more information.