Wikipedia
WYPR is a public radio station serving the Baltimore, Maryland metropolitan area. The station broadcasts on 88.1 MHz on the FM band. Its studio is in the Charles Village neighborhood of northern Baltimore, while its transmitter is westward in Park Heights. The station is simulcast in the Frederick and Hagerstown area on WYPF (88.1 FM) and in the Ocean City area on WYPO (106.9 FM). Surprisingly, the two stations on 88.1 are not synchronized. WYPF's sound is about 1/2 second behind WYPR, rendering WYPR almost unlistenable in some portions of Howard and Carroll counties.
WYPR is Baltimore's flagship National Public Radio member station, carrying content from NPR, American Public Media (the distribution arm of Minnesota Public Radio), Public Radio International and the BBC World Service (on HD2). WYPR also provides a 24-hour classical music format on its HD3 subchannel. In addition, WYPR produces several of its own shows, including the public affairs-focused programs Midday and Maryland Morning as well as local news coverage and special newsroom series.