Radio Service Bulletins
radio regulation
1915 to 1932
Radio Service Bulletins were issued monthly by the Bureau of Navigation (and later the Radio Division), Department of Commerce from January 1915 into the 1930s to keep mariners, aviators, radio listeners, and others abreast of developments in the new medium of radio. Radio was used for radiotelegraphy, ship-to-shore and ship-to-ship communications, and increasingly as the 1920s and 1930s advanced, broadcasting. The bulletins reproduced here offer a snapshot of the state of the radio art during these years.
Bulletin issues before 1921 are primarily concerned with radiotelegraphy communications between ships although there are some references to land stations too. After 1921, there are an increasing number of references to early pioneer broadcast stations.
For an article by Thomas White on the early days of the AM band click here
  
Bulletins by Year and Month
1915 J F M A M J J A S O N D
1916 J F M A M J J A S O N D
1917 J F M W.W. I 
1918 Bulletins not issued during the First World War
1919 W.W. I A S O N D
1920 J F M A M J J A S O N D
1921 J F M A M J J A S O N D
1922 J F M A M J J A S O N D
1923 J F M A M J J A S O N D
1924 J F M A M J J A S O N D
1925 J F M A M J J A S O N D1 D2
1926 J F M A M J J A S O N D
1927 J F M A M J J A S O N D
1928 J F M A M J J A S O N D
1929 J F M A M J J A S O N D
1930 J F M A M J J A S O N D
1931 J F M A M J S A S O N D
1932 J F M A          
  Click for: Index 1920-1931
Click for: FRC Index 1927-1930
Click to Search Search all the Service Bulletins
Before the creation of the Federal Radio Commission by Act of Congress in 1927 (and later the FCC in 1934), it was the responsiblity of the Department of Commerce to license radio stations.