CHICAGO MEDIA FREQUENCIES 161.64 WMAQ TV CH5 F5 Studio A 161.64 WBBM TV CH-2 Sports Coverage Ops. 161.67 WMAQ TV News 161.7 WMAQ TV F2 News 161.7 WBBM RADIO Skydeck & Air 78 Helecopters 161.76 WMAQ TV CH5 F4 Studio A 166.25 WGN-TV-CH9 Minicam / Helicopter 166.25 WGN TV CH-9/720 AM News, Cues, Masters 173.225 Chicago Tribune Circulation 173.275 Sun Times Editorial 173.375 Chicago Sun Times Circulation 173.375 Sun Times Circulation 450.05 WBBM TV CH-2 F-2, F-3 Simplex 450.0875 WLS TV Base to Air 1 450.1125 Metro Traffic. 450.15 WIND News Desk 450.4125 WLS News Desk 450.1875 WFYR News Desk 450.25 WGN / L. Schriner 450.25 WGN TV CH-9/720 AM News & Copters 450.2875 Shadow Traffic. 450.35 WBBM TV F-2 Misc 450.4125 WLS Radio 890 AM Traffic & News 450.45 WMAQ News Desk 450.4875 WBBM TV CH-2 F-5 Audio Tracks & Cues 450.55 WMAQ CH5 Audio feed 450.6125 WBBM TV CH-2 CBS News Coriers 450.65 WCFL News Desk 450.8 WBBM TV CH-2 F-4 News Engineers 450.85 Channel 5 News Engineers 455.0875 WLS TV CH-7 F-1 Newsdesks 455.15 WLS TV CH7 News ( F-4 ) 455.25 WLS TV CH-7 F-2 Local News Backup 455.35 WBBM TV CH-2 Simplex 455.45 WLS TV CH-7 Local News & Engineers 455.5125 WLS TV CH-7 Audio Relays & Cues 455.5875 WLS TV CH-7 F-3 Various Uses 455.8 WBBM TV CH-2 Simplex 461.175 Shadow Traffic 461.5 L.Shriner Reporting 464.875 Chicago Sun Times Base 468.4125 Chicago Sun Times Reporters 852.0625 Chicago Tribune Photographers 852.0625 Tribune Photographers THE ART INSTITUTE- 151.655 Maintenance 151.685 Admin / Pager / Phone Patch 151.745 Security ORCHESTRA HALL- 462.7625 Security 467.8625 Gen. Ops. MARSHAL FIELDS DOWNTOWN STORE- 154.625 Store Pager 461.200 Maintenance 464.975 In-Store Contractors' Rptr. CARSON'S DOWNTOWN STORE- 463.675 Shipping 476.6375 Maintenance SEARS TOWER- 464.950 Building Operations 464.125 Building Operations MIGS TOWER- 121.300 Air traffic OTHER STUFF- 464.650 Horse Carriages 464.925 Palmer House Hotel PD 472.7625 Back of the Yards Mall 478.9625 First Chicago Bank Bldg. 478.9125 1st National Bank Plaza