Synchronizing remote clock signals

[Ricewind]

Hallo,

I have to work with an indeterminate amount of PCBs in synchronisation. These PCBs generate some RF signals which have to be synchronized and such thing is done through a synchronisation of the clocking signals.

The main challenge is that they are 25 MHz clock signals which are pretty far away one from the other (around 5-10 meters). As far as I have been investigating on the internet, I see that some applications do such thing, but I cannot figure out how.

Has anybody got any idea?

 

[dick_freebird]

Are you at liberty to change / add wiring (like a feedback from
each remote, or perhaps you have this at the head end already),
is this something that has to adapt over time or just an initial
calibration?