WWDM is an urban adult contemporary radio station licensed to Sumter, South Carolina and serves the Columbia, South Carolina market. The Alpha Media outlet is licensed by the Federal Communications Commission (FCC) to broadcast with an effective radiated power (ERP) of 100 kW from a transmitter east of Fort Jackson. The station goes by the name 1013 The Big DM and its current slogan is "Your #1 Station for R&B". Its studios are located in Columbia.