WCHI-FM
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| Broadcast area | Chicago metropolitan area | 
| Frequency | 95.5 MHz (HD Radio) | 
| Branding | Rock 95.5 | 
| Programming | |
| Language | English | 
| Format | Mainstream rock | 
| Subchannels | 
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| Ownership | |
| Owner | 
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| History | |
| First air date | March 9, 1959 | 
| Former call signs | 
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| Call sign meaning | Chicago | 
| Technical information | |
| Licensing authority | FCC | 
| Facility ID | 53971 | 
| Class | B | 
| ERP | 
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| HAAT | 425 meters (1,394 ft) | 
| Transmitter coordinates | 41°53′56″N 87°37′23″W / 41.899°N 87.623°W | 
| Links | |
| Public license information  | |
| Webcast | 
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| Website | |
WCHI-FM (95.5 MHz) is a mainstream rock formatted radio station located in Chicago, Illinois, owned and operated by iHeartMedia. WCHI-FM has studios located at the Illinois Center complex on Michigan Avenue in Downtown Chicago, and it broadcasts from a 5.3 kW transmitter based atop John Hancock Center.
WCHI-FM broadcasts three channels in the HD Radio format.