What is "wdna"

WDNA is the callsign of a class C2 listener supported public radio station operating on 88.9 MHz in Miami, Florida, licensed in 1977 by the FCC to the Bascomb Memorial Broadcasting Foundation, Inc., a non-profit organization. WDNA is the market's first public radio station not run by any government agency. It is affiliated with Public Radio International. The format is a mix of straight-ahead jazz, Latin jazz, world music, and talk. BBC World Service newscasts are heard atop each hour.