Dr. Frank Conrad (above), assistant chief engineer of Westinghouse Electric, developed the technology that made KDKA Radio possible. He constructed a transmitter and installed it in a garage near his home in 1916. The station was licensed originally as 8XK with a power of 100 watts.

A makeshift studio located in a shack atop one of the Westinghouse Electric buildings in East Pittsburgh. 

On Tuesday, November 2, 1920, election night, four men (pictured above) compiled election returns received via wired-telephone from the newsroom at the Pittsburgh
Post newspaper. It is estimated that between 500 and 1000 listeners heard this
broadcast of the world’s first commercial radio station.

Harold W. Arlin, first full-time KDKA announcer

(Possible reenactment)