April 30, 1922 & 5/1-5/12 U.S. Broadcast Station Lists
The following lists -- U.S. broadcasting stations by callsign as of April 30, 1922, plus grants from May 1-12, 1922 -- appeared on pages 19-22 of the May 1, 1922 (#61) issue of the Commerce Department's Radio Service Bulletin. These scanned pages come from the Federal Communication Commission's Radio Service Bulletins site.
A chart for converting operating wavelengths to kilohertz is located at Kilohertz-to-Meters Conversion Charts.
