WDCB
| City | Glen Ellyn, Illinois |
|---|---|
| Broadcast area | West Suburbs |
| Frequency | 90.9 FM (MHz) (also on HD Radio) |
| First air date | 1977 |
| Format | Public radio, jazz |
| Audience share | 0.4 (FALL 2007, RRC) |
| ERP | 5,000 watts |
| HAAT | 91.0 meters |
| Class | A |
| Facility ID | 12281 |
| Transmitter coordinates | 41°50′36.00″N 88°5′0.00″W / 41.8433333°N 88.0833333°W |
| Callsign meaning | DuPage Community Broadcasters |
| Affiliations | PRX, NPR |
| Owner | College of DuPage, District 502 |
| Website | www |
WDCB (90.9 FM) is a radio station broadcasting a public radio and jazz format. Licensed to Glen Ellyn, Illinois, USA, the station serves the Chicago area. The station is owned by College of DuPage, District 502 and features primarily live and locally hosted programming, along with select music programs from PRX and NPR. The station is also broadcast on HD radio.
WDCB 90.9 FM was founded as a 5,000-watt station in late 1977, and its original format was a mix of classical, educational, and news programming. Jazz programming was introduced in the early 1980s and became the primary format by the end of the decade. Since then, WDCB's format has expanded to include blues, roots rock, bluegrass, Celtic, folk, new-age, Afro-Cuban jazz, big band, and old-time radio shows, though straight-ahead jazz makes up about 80% of its music programming. The educational programming was dropped in 2001, and classical music continued to be heard on the station on weekends until late 2005. In recent years, some of the more eclectic and niche programming has been phased out for a stronger emphasis on the more popular jazz and blues programming.
As the result of a 2016 agreement with Chicago Public Media, WDCB's programming is now also heard throughout much of Chicago on WRTE 90.7 FM, from a low power 6-watt signal located on Chicago's near-west side. While WDCB's primary 90.9 FM signal does reach all of Chicago, the 90.7 FM signal offers better reception for many WDCB listeners on the west side of Chicago, as well as Chicago's near-north and near-south side neighborhoods.
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