Editing AM broadcasting (section)

====VHF AM broadcasting====
Beginning in the mid-1930s, the United States evaluated options for the establishment of broadcasting stations using much higher transmitting frequencies. In October&nbsp;1937, the FCC announced a second band of AM stations, consisting of 75&nbsp;channels spanning from 41.02 to 43.98&nbsp;MHz, which were informally called ''[[Apex (radio band)|Apex]]''.

The 40&nbsp;kHz spacing between adjacent frequencies was four times that of the 10&nbsp;kHz spacing used on the standard AM broadcast band, which reduced adjacent-frequency interference, and provided more bandwidth for high-fidelity programming. However, this band was eliminated effective 1&nbsp;January 1941, after the FCC determined that establishing a band of FM stations was preferable.<ref>[http://www.theradiohistorian.org/Apex/Apex1.htm "America's Apex Broadcasting Stations of the 1930s"] by John Schneider, ''Monitoring Times Magazine'', December 2010. (theradiohistorian.com)</ref>