Wireless Time Distribution

The innovative radio clock system is based on a transmitter that sends the time signal (868 MHz) to the end devices (the clocks). The end devices are equipped with a WTD movement or with a special WTD receiver module. The WTD transmitter is synchronized either by a standard master clock, by a modern NTP time server, or by a GPS or DCF 77 receiver directly.


  • Flexibility in clock installation and realization of clock systems
  • No cabling due to wireless synchronization
  • Distribution over large distances (100 to 200 m, depending on building structure, extension by repeater possible)
  • Compatible to norm AFNOR NFS 87500

Transmitter WTD 868-T

Input: LAN, DCF 77, GPS
Output: Radio transmitted time code (868 MHz)

Input: Timecode from a WTD 868 Transmitter
Output: Radio transmitted timecode (868 MHz)

Receiver Interface
Input: Timecode from a WTD 868 Transmitter or Repeater

- RM: MOBALine

- RD: DCF 77



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