Ais not working

Hello on copter that fly over sea I tryed to activate ais,

I followed exactly the wiki:
https://ardupilot.org/rover/docs/common-ais.html

I have exactly the same material, I checked the output of the ais module and it’s working perfectly on telem2 port…

But nothing appear as expected on mission planner, I don’t see any boat on the map.

Some body can tell me if this feature need special compilation activating ais option?

And also somebody can compile last ac 4.5 with this feature activated for pixhawk 6x ?

Thank you so much