code/game/machinery/telecomms/machines/broadcaster.dm

/obj/machinery/telecomms/broadcaster	The broadcaster sends processed messages to all radio devices in the game. They do not have to be headsets; intercoms and station-bounced radios suffice.
/proc/end_message_delay	Simply resets the message delay and the recent messages list, to ensure that recent messages can be sent again. Is called on a one second timer after a delay is set, from `/obj/machinery/telecomms/broadcaster/receive_information()`