FAC-ID: 9617

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DTV3-LIC: Granted	Channel 12  CHICAGO, IL
	0000187049 (25076ff37f8fa68f017fb11e12bf2280) - App 0000234857 (25076ff38d31a332018d3cace56b1eff) - App
	1642' 10.9 kW ND (H) (2.55 kW + 6.31 dB gain = 10.9 kW ERP) 66.7 mile contour / 13995.5 sq. mi. area / Est. Pop. 10,018,037 1636' AGL; 2231' AMSL; (1032960) 1° Elec Beam Tilt; Full Service Filter Harris TAD-5H NAD83: N 41° 52' 44", W 87° 38' 8" (41.878889, -87.635556) Willis Tower (IL)
DTX-LIC: Granted	Channel 12  CHICAGO, IL
	0000187381 (25076ff37fb3bd37017fc1f80bde15d5) - App 0000189452 (25076ff37fc69b3c017fe51fac0c38ce) - App
	1370' 22.9 kW DA (E) (Vertical ERP: 18.3 kW) (6.52 kW + 5.46 dB gain = 22.9 kW ERP) 62.6 mile contour / 12311.3 sq. mi. area / Est. Pop. 9,788,688 1367' AGL; 1960' AMSL; (1009012) 2° Elec Beam Tilt; Full Service Filter [H-Pat] Dielectric TLS-V4M/VP-R NAD83: N 41° 53' 56.1", W 87° 37' 23.2" (41.898917, -87.623111) John Hancock Tower (IL)
DTX-LIC: Granted	Channel 12  CHICAGO, IL
	0000214259 (25076ff386f28a4601872961c7bc3572) - App 0000217825 (25076f9188ea85960189404dce7326b7) - App
	1522' 14 kW DA (H) (3.82 kW + 5.64 dB gain = 14 kW ERP) 60 mile contour / 11293.3 sq. mi. area / Est. Pop. 9,837,099 1519' AGL; 2114' AMSL; (1032959) Unknown or 0° Elec Beam Tilt; Full Service Filter [H-Pat] RCA TBF-2AH (SPECIAL) NAD83: N 41° 52' 44.1", W 87° 38' 10.2" (41.878917, -87.636167) Willis Tower (IL)
DTV-CP: Granted	Channel 12  CHICAGO, IL
	0000249867 (25076ff3905469b40190978405163e97) - App - (Exp. 01/30/2026)
	1642' 29.5 kW ND (H) 72.2 mile contour / 16356.8 sq. mi. area / Est. Pop. 10,474,184 1636' AGL; 2231' AMSL; (1032960) 1° Elec Beam Tilt; Full Service Filter Harris TAD-5H NAD83: N 41° 52' 44", W 87° 38' 8" (41.878889, -87.635556) Willis Tower (IL)

  TSID: 999 (0x03E7)

  TSReader Data: HTML Export (02/03/2024)   
  Bitrate Allocation: Variable

Digital Channel	Display Channel	Call Sign	Src ID	PMT PID	Video	Dimensions	Aspect Ratio	Video PID	Video (Mbps)	PCR PID	Audio Type	Audio PID	Audio Bitrate
12.1	02-1	WBBM-NG	1	0x0030			16:9	0x0031	0Mbps	0x0011		0x0034	192kbps
12.2	05-1	WMAQ-NG	2	0x0040			16:9	0x0041	0Mbps	0x0041		0x0044	192kbps
12.3	66-1	WGBO-NG	3	0x0050			16:9	0x0051	0Mbps	0x0051		0x0054	192kbps
12.4	32-1	WFLD-NG	4	0x0060			16:9	0x0061	0Mbps	0x0061		0x0064	192kbps
12.5	09-1	WGN-NG	5	0x0070			16:9	0x0071	0Mbps	0x0071		0x0074	192kbps

Operator:	CBS Corporation
Licensee:	CBS BROADCASTING INC.
DTV Transition:
Certification :	Analog channel 2. Digital channel 3.
Elected Round 1  :	Negotiated for channel 11 with fallback to channel 3 if agreement was disapproved. (Approved)
Conflict Round 1  :	Maintained by engineering statement (1631' 1.18 kW ND). (Approved)
Final Channel :	Channel 12.
Last Analog:
Channel 2  :	1490' 26.4 kW ND

Call Sign History:
	WBBM
08/28/1979	WBBM-TV
	WBBM-TV
	WBBM-TV
	WBBM-TV

Station has no translators.