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WTTW
CHICAGO IL
DIGITAL TV STATION
PBS
Channel 25 (Virtual 11)
WINDOW TO THE WORLD COMMUNICATIONS, INC.
5400 NORTH ST. LOUIS AVE
CHICAGO IL 60625
7735095412
Facility ID: 10802
Licensed
View Public File
Correspondence
FRN: 0002860179
  
0000193623 Granted 06/23/2022
REC Application ID: 5294798 (LMS)
Record Type: Digital TV (DTV) Station
Application Purpose: Modify License (Minor)
Channel: 25
Expiration Date: 12/01/2021
SITE # 1
TV Zone: : 1
NAD83 Coordinates: 41 52' 44.1" N / 87 38' 10.2" W
Antenna Structure Registration Number: 1032959
Elevation: 181.4 m AMSL
Antenna Type: RFS PEPL24C
Antenna Polarization: Elliptical
Effective Radiated Power: 250kW
Maximum Antenna Power Gain: 14.33 dB
Radiation center-above mean sea level: 675.6
Radiation center above average terrain 496
Overall antenna height above ground: 527.3
Directional Antenna:
Antenna System ID: 1002552
Rad Field dB ERP Rad Field dB ERP Rad Field dB ERP
00.516-5.7 66.564 1200.752-2.5 141.376 2400.955-0.4 228.006
100.353-9.0 31.152 1300.912-0.8 207.936 2500.800-1.9 160.000
200.239-12.4 14.280 1400.9950.0 247.506 2600.684-3.3 116.964
300.150-16.5 5.625 1500.941-0.5 221.370 2700.727-2.8 132.132
400.063-24.0 0.992 1600.797-2.0 158.802 2800.756-2.4 142.884
500.067-23.5 1.122 1700.696-3.1 121.104 2900.679-3.4 115.260
600.056-25.0 0.784 1800.727-2.8 132.132 3000.650-3.7 105.625
700.084-21.5 1.764 1900.710-3.0 126.025 3100.816-1.8 166.464
800.152-16.4 5.776 2000.661-3.6 109.230 3200.960-0.4 230.400
900.243-12.3 14.762 2100.643-3.8 103.362 3300.974-0.2 237.169
1000.395-8.1 39.006 2200.833-1.6 173.472 3400.872-1.2 190.096
1100.575-4.8 82.656 2300.986-0.1 243.049 3500.707-3.0 124.962
Additional Azimuths:
Rad Field dB ERP Rad Field dB ERP Rad Field dB ERP
2331.0000.0 250.000 2341.0000.0 250.000
0000163950 Granted 10/22/2021
0000150031 Dismissed 06/24/2021
0000141933 Granted 04/16/2021
0000111781 Granted 04/23/2020
0000084058 Granted 10/17/2019
0000053672 Granted 05/03/2018
0000034877 Granted 12/21/2017
0000028364 Granted 08/11/2017
0000028364 Superceded 08/10/2017
BMLET-20040311ACM Granted 08/13/2004
BLEDT-20020408ABK Granted 10/17/2002
BMPEDT-20000501AIR Granted 05/31/2001
BPEDT-19981228LB Granted 07/30/1999
BLET-19840605KG Granted 06/29/1984
BLET-19840209KG Granted 06/29/1984
BPET-19820507KK Granted 06/11/1982
BROADCAST AUXILIARY/REMOTE PICK-UP/STL
WSM739 455.4125 SEARS TWR 233 S WACKER DR
WSM739 455.6125 SEARS TWR 233 S WACKER DR
WPTQ550 2025.5000~2109.5000
WPTQ550 2450.0000~2467.0000
WPTQ550 2467.0000~2483.5000
KR7810 6900.0000~6925.0000
WFD540 6900.0000~6925.0000 2 ILLINOIS CTR 233 N MICHIGAN AVE
KSH62 6925.0000~6950.0000 5400 N ST LOUIS AVE
KDV20 7100.0000~7125.0000 233 SOUTH WACKER DR
CALL SIGN HISTORY
WTTW - 00/00/0000 (CDBS)
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Applications DTV Transition TV Repack Childrens TV
APPLICATION HISTORY
Public Notice Details BRET-19790801LM Renewal Granted
11/30/1979
Public Notice Details BPET-19820507KK Modification Granted
06/11/1982
  BRET-19820802D2 Renewal Granted
11/19/1982
Public Notice Details BMPET-19831108KS Replace Expired CP Granted
11/28/1983
Public Notice Details BLET-19840209KG License to Cover Granted
06/29/1984
Public Notice Details BLET-19840605KG License to Cover Granted
06/29/1984
Public Notice Details BRET-19870803KE Renewal Granted
11/16/1987
Public Notice Details BRET-19920803LK Renewal Granted
11/30/1992
Public Notice Details BRET-19970801LE Renewal Granted
11/19/1997
Public Notice Details BPEDT-19981228LB Modification Granted
07/30/1999
Public Notice Details BMPEDT-20000501AIR Modification Granted
05/31/2001
Public Notice Details BLEDT-20020408ABK License to Cover Granted
10/17/2002
Public Notice Details BAFEDT-20031124AGE Ancillary Fee Received
11/24/2003
  BSTA-20040112ADJ Special Temporary Authority Dismissed
03/12/2004
Public Notice Details BMLET-20040311ACM Modify License Granted
08/13/2004
Transaction log data BAFEDT-20041116ACZ Ancillary Fee Received
11/17/2004
Transaction log data BAFEDT-20051108AAV Ancillary Fee Received
11/09/2005
Transaction log data BAFEDT-20061115ABL Ancillary Fee Received
11/16/2006
Public Notice Details BRET-20050729CYS Renewal Granted
12/14/2006
Transaction log data BAFEDT-20071109AAL Ancillary Fee Received
11/13/2007
Transaction log data BAFEDT-20081117AAZ Ancillary Fee Received
11/18/2008
Public Notice Details BAFEDT-20091022ABU Ancillary Fee Received
10/23/2009
Public Notice Details BAFEDT-20101201AMD Ancillary Fee Received
12/02/2010
Transaction log data BAFEDT-20111128FUL Ancillary Fee Received
11/30/2011
Transaction log data BAFEDT-20121022AAX Ancillary Fee Received
10/23/2012
Transaction log data BAFEDT-20131107ADZ Ancillary Fee Received
11/08/2013
Transaction log data BAFEDT-20131108ACU Ancillary Fee Received
11/12/2013
Transaction log data BAFEDT-20141008AAY Ancillary Fee Received
10/09/2014
Public Notice Details BREDT-20130725ACD Renewal Granted
10/10/2014
Transaction log data BAFEDT-20151104GIM Ancillary Fee Received
11/05/2015
Transaction log data 0000005351 Ancillary Service Report Received
11/05/2015
Transaction log data 0000016144 Administrative Update Received
10/14/2016
Transaction log data 0000016747 Ancillary Service Report Received
11/07/2016
Transaction log data 0000028364 Modify License-Amendment Granted
08/11/2017
Transaction log data 0000034877 Modify License Granted
12/21/2017
Transaction log data 0000053672 Minor Mod-new channel sharing Granted
05/03/2018
Transaction log data 0000084058 Minor Mod.-channel sharing Granted
10/17/2019
Transaction log data 0000087265 CP Extension Granted
10/24/2019
Transaction log data 0000111780 Tolling Granted
04/14/2020
Transaction log data 0000111781 Extension Request Granted
04/23/2020
Transaction log data 0000124666 Tolling Granted
10/21/2020
Transaction log data 0000141934 CP Extension Granted
04/09/2021
Transaction log data 0000141933 Extension Request Granted
04/16/2021
Transaction log data 0000150031 Modification Withdrawn
06/24/2021
Transaction log data 0000150031 Modify License Dismissed
06/24/2021
Transaction log data 0000163950 License-existing channel sharing Granted
10/22/2021
Transaction log data 0000187050 Special Temporary Authority-legal amendment Granted
03/24/2022
Transaction log data 0000193623 Modify License Granted
06/23/2022
Transaction log data 0000199117 Special Temporary Authority-legal Granted
09/09/2022
Transaction log data 0000217054 Special Temporary Authority-legal Granted
01/19/2024
Transaction log data 0000155026 Application has associated pleadings. Renewal-amendment Accepted for Filing
02/18/2025
A red arrow means this application has additional transaction log history since July 1, 2014. Click the arrow to expand.
A blue arrow means that some details may be available through public notice data. Click the arrow to expand. (Provided by the REC Radio History Project)
An orange triangle indicates pleadings (objections, reconsiderations, etc.). Click the triangle to view.
IMPORTED LETTERS
History card 01/01/1980
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