Licensee (Owner): CBS BROADCASTING INC. (CBS Corporation)
Service Designation: DTX Digital Auxiliary Facility
Channel: 12   204 - 210 MHz Licensed 
File Number: 0000189452     Facility ID Number: 9617
Application ID Number: 25076ff37fc69b3c017fe51fac0c38ce
CDBS Application ID: 2045403

Location: John Hancock Tower (IL)
41°	53'	56.1"	N	(41.898917)	Latitude
87°	37'	23.2"	W	(-87.623111)	Longitude (NAD83)

Polarization: Elliptical (E)	Horizontal	Vertical
Effective Radiated Power (ERP):	22.9	18.3	kW ERP
TV Zone: 1	Feet	Meters
Antenna Height Above Average Terrain:	1371'	418m
Antenna Height Above Ground Level:	1368'	417m
Antenna Height Above Mean Sea Level:	1958'	597m

6.52 kW TPO - 0.96 dB line loss + 6.42 dB antenna gain = 22.9 kW ERP

8.14 dBk TPO - 0.96 dB line loss + 6.42 dB antenna gain = 13.6 dBk ERP

Directional	Antenna ID No.: 1009481	Pattern Rotation: 0°
Elec. Beam Tilt: 2°
Antenna Make: Dielectric	Antenna Model: TLS-V4M/VP-R
Relative Field values for directional antenna		Relative Field polar plot
Relative field values do not include any pattern rotation that may be indicated above.

0°  0.306      10°  0.276      20°  0.303      30°  0.339      40°  0.353      50°  0.339	60°  0.303      70°  0.276      80°  0.306      90°  0.405    100°  0.539    110°  0.679	120°  0.804    130°  0.901    140°  0.965    150°  0.995    160°  0.998    170°  0.983	180°  0.959    190°  0.936    200°  0.919    210°  0.909    220°  0.905    230°  0.909	240°  0.919    250°  0.936    260°  0.959    270°  0.983    280°  0.998    290°  0.995	300°  0.965    310°  0.901    320°  0.804    330°  0.679    340°  0.539    350°  0.405
155°  1.000	283°  1.000

ASRN:	1009012   ULS Data   Other Stations on Tower
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