How come that radio stations in the US start with "K" or "W"?

radio-stations

#1

How come that radio stations in the US start with “K” or “W”?

Answer:

The origin of the division goes back just over a century. In 1912, the U.S. federal government started licensing terrestrial radio stations, assigning the call letters W and K to stations in the east, respectively the west of the country. Those letters were the result of international agreements hammered out at International Radio-telegraphic Conferences at the beginning of the 20th century.