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				Call Sign: KHI21 | ULS File Number: 0008002558 | |
| Radio Service: Aural Studio Transmitter Link | License Status: Active | ||
| Granted: 03/24/1993 | Expires: 12/01/2028 | ||
| Certifier: | Certifier Title: | ||
| FCC Web Link: KHI21 License Data | |||
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				C/O NEXSTAR MEDIA GROUP, INC. 545 E. JOHN CARPENTER FREEWAY, IRVING, TX 75062 Phone: (312) 222-4701 Fax: (312) 222-4192 FRN:  | 
		435 North Michigan Ave. Chicago, IL 60611 Attn: Jason . Roberts Phone: (312) 222-3894 E-Mail: jroberts@tribunemedia.com  | 
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				01/21/2003: License updated since parent station was modified in CDBS. | ||
| 01/13/2005: License renewed since parent station was renewed IN CDBS. | |||
| 04/01/2009: License updated since parent station was modified IN CDBS. | |||
| 03/09/2010: License updated since parent station was modified IN CDBS. | |||
| 12/22/2012: License updated since parent station was modified IN CDBS. | |||
| 01/10/2013: License updated since parent station was modified IN CDBS. | |||
| 01/31/2013: License updated since parent station was modified IN CDBS. | |||
| 01/08/2014: License renewed since parent station was renewed IN CDBS. | |||
| 01/08/2020: License updated since parent station was modified IN CDBS. | |||
| 08/01/2020: License updated since parent station was modified IN CDBS. | |||
| 01/22/2021: License renewed since parent station was renewed IN CDBS. | |||
| 01/23/2023: License updated since parent station was modified IN CDBS. | |||
| 08/06/2025: License updated since parent station was modified IN CDBS. | |||
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			 Station Information  | 
				Parent Facility ID: 72114 | ||
| Parent Callsign: WGN (DT) | |||
| Broadcast City: CHICAGO, IL | |||
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			 Hancock  | 
		Name: Hancock | ||
| Location Type: Fixed | |||
| Address: EAST TOWER 875 N MICHIGAN AVE (280282) CHICAGO, IL  | 
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| Structure: Building with Tower | |||
| Ground Elevation: 180.7 m | |||
| Structure Height: 367.7 m | |||
| Overall Structure Height: 459 m | |||
| Structure Registration: 1009012 | |||
| Latitude: 41-53-56.1 N. (NAD 83) | |||
| Longitude: 87-37-23.2 W. (NAD 83) | |||
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				Antenna Mfgr: Andrew | ||
| Antenna Model: KP4F-820 | |||
| Antenna Height: 344.4 m. | |||
| Antenna Elevation Angle (tilt): -0.5 ° | |||
| Polarization: H | |||
| Antenna Beamwidth: 17.2 ° | |||
| Azimuth: 290.4 ° | |||
| Antenna Gain: 18.7 dB | |||
| Freq 1 Lower: 947.000000 MHz Freq 1 EIRP: 51.1 dBm Freq 1 Emission: 300KD7W Freq 1 Digital Mod Rate: 1838 kb/s Freq 1 Digital Mod Type: 64QAM Transmitter Manufacturer: GATESAIR Transmitter Model: V-HDL950 Station Class: Operational Fixed Constructed: 02/04/2003  | |||
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			 WGN XMTR  | 
		Name: WGN XMTR | ||
| Location Type: Fixed | |||
| Ground Elevation: 213.4 m | |||
| Latitude: 42-00-42.5 N. (NAD 83) | |||
| Longitude: 88-01-54.5 W. (NAD 83) | |||
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				Antenna Mfgr: Andrew | ||
| Antenna Model: GP10F-890A | |||
| Antenna Height: 40.5 m. | |||
| Antenna Beamwidth: 7.8 ° | |||
| Antenna Gain: 26.3 dB | |||