4 ms·

It probably has to do with the US requirement to announce the call sign at least once an hour. Regular listeners will associate it with the station due to this.

• oblio 5y ago
  Ok, but... why?
  • alexb_ 5y ago
    There's probably a good reason for it but I don't work for the FCC so I couldn't tell you. Iirc TV stations have to do the same thing every hour by showing the station name briefly.
    • oblio 5y ago
      In Europe I think they say their name, maybe hourly but the name doesn't have to be KȚȘĂ...