 In the 1930s, WCBM had moved to the Hearst Tower Building in Baltimore.It broadcast on 1350 kilocycles but was only powered at 500 watts by day, 250 watts at night, while competitor WBAL ran 50,000 watts.WCBM was the NBC Blue Network affiliate for Baltimore, carrying its dramas, comedies, news and sports, during the "Golden Age of Radio."