WAMU is a public radio station that services the greater Washington, D.C.

Washington, D.C.

Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

 metropolitan area. The station broadcasts on 88.5 FM, online at wamu.org, and on HD Radio

HD Radio

HD Radio, which originally stood for "Hybrid Digital", is the trademark for iBiquity's in-band on-channel digital radio technology used by AM and FM radio stations to transmit audio and data via a digital signal in conjunction with their analog signals...

 at 88.5-HD1, 2 and 3. WAMU is on-air 24 hours a day. It is licensed to American University

American University

American University is a private, Methodist, liberal arts, and research university in Washington, D.C. The university was chartered by an Act of Congress on December 5, 1892 as "The American University", which was approved by President Benjamin Harrison on February 24, 1893...

, and its studios are located near the campus in northwest Washington, D.C. WAMU's HD2 subchannel broadcasts Bluegrass Country, which is also available at bluegrasscountry.org and on-air in northern Virginia at 105.5 FM; WAMU-3 broadcasts content from WTMD

WTMD

WTMD is a radio station licensed to and located at Towson University in Towson, Maryland. It is one of only a few locally-owned radio stations in Towson and Baltimore. WTMD has one of the largest listening audiences of any public radio station in Maryland....

, an AAA station in Towson, Maryland, as well as other NPR and BBC World Service

BBC World Service

The BBC World Service is the world's largest international broadcaster, broadcasting in 27 languages to many parts of the world via analogue and digital shortwave, internet streaming and podcasting, satellite, FM and MW relays...

 programming.