Earliest License By WBAA Radio • Nov 17, 2011 ShareTwitter Facebook Google+ Email VIEW SLIDESHOW 1 of 2 The earliest existing WBAA license. VIEW SLIDESHOW 2 of 2 August 1930. WBAA submits an amended application for a new license to increase the daytime power from 500 watts to 1000 watts (1 kw). July 31, 1930 This is the earliest station license in existence at WBAA. None of the earlier licenses survived. Tags: 90th AnniversaryView the discussion thread.