WTAM was the first radio station to broadcast coverage of a political convention when it covered the 1924 Republican National Convention at Cleveland 's Public Auditorium from June 10 – 12 , 1924 . The station 's power increased to 2,500 watts in 1925 and to 3,500 watts in 1926 , as the studios moved to the Union Trust Building ( now The 925 Building ) . By June 30 , 1927 , WTAM and WEAR broadcast on 750 kHz with WTAM broadcasting with 3,500 watts . The January 31 , 1928 Radio Service Bulletin of the Commerce Department listed WTAM broadcasting with 3,500 watts at night and 5,000 watts during the day
1924 Republican National Convention
1924 Republican National Convention
WTAM