Build antennas that broadcast messages and recieve them with mobile recievers!
This is a unofficial port to Bukkit 1.13.2 of the popular RadioBeacon plugin. The original plugin seems to be abandoned by now.
Check out the original:
If you're coming from an older version of the RadioBeacon plugin, save your antennas.yml file from the plugins/RadioBeacon folder, then add it to the plugins/Antennas folder, and your old antennas will all work!