This is the 10472nd most frequent Russian word.
вещатель
Broadcaster.
Here, 'вещатель' refers to a person who acts as a broadcaster or announcer.
Вещатель объявил о начале программы.
The announcer announced the beginning of the program.
In this context, 'вещатель' denotes a station responsible for broadcasting information.
Радио вещатель передал экстренные новости.
The radio broadcaster transmitted emergency news.
In this instance, 'вещатель' represents an entity, namely the TV channel, functioning in the role of a broadcaster.