With the entrance of the United States into World War One in April 1917, it became illegal for civilians to possess a working radio receiver, and most civilian radio stations were shut down for the duration of the conflict.
It became illegal for civilians to possess a working radio receiver. This was with the entrance of the United States into World War One in April 1917. Most civilian radio stations were shut down for the duration of the conflict. This was with the entrance of the United States into World War One in April 1917.