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WTTW
CHICAGO IL US
PBS
WINDOW TO THE WORLD COMMUNICATIONS, INC.
5400 NORTH ST. LOUIS AVE
CHICAGO IL 60625
DIGITAL TV STATION
Channel 25 (Virtual 11)
Facility ID: 10802
Fully Licensed
View Public File
Fac Correspondence
1. MOD 0000028364 GRANTED 08/11/2017
View Application
View Authorization
Record Type: Full Service Television
Application Purpose: Modification (Minor)
Channel: 25
Construction Permit Expires: 10/18/2019
SITE # 1
TV Zone: 1
NAD83 Coordinates: 41 52' 44.1" N / 87 38' 10.2" W
NAD27 Coordinates: ' " / 0 0' "
Elevation: 181.4 m AMSL
Antenna Type: ERI ATW15H4-HSC1-25H
Antenna Polarization: Horizontal
Effective Radiated Power: 148 kW
Antenna Maximum Power Gain: 12.9 dB
Radiation center-above mean sea level: 675.6m
Radiation Center above average terrain: 496.0m
Overall antenna height above ground: 527.3m
Directional Antenna
Antenna System ID: 1001940
Rad Field dB ERP Rad Field dB ERP Rad Field dB ERP Rad Field dB ERP
00.850-1.4 106.930 900.640-3.9 60.621 1800.830-1.6 101.957 2700.775-2.2 88.893
100.750-2.5 83.250 1000.760-2.4 85.485 1900.795-2.0 93.540 2800.780-2.2 90.043
200.630-4.0 58.741 1100.870-1.2 112.021 2000.785-2.1 91.201 2900.810-1.8 97.103
300.520-5.7 40.019 1200.940-0.5 130.773 2100.810-1.8 97.103 3000.860-1.3 109.461
400.430-7.3 27.365 1300.985-0.1 143.593 2200.840-1.5 104.429 3100.920-0.7 125.267
500.380-8.4 21.371 1401.0000.0 148.000 2300.860-1.3 109.461 3200.950-0.4 133.570
600.380-8.4 21.371 1500.980-0.2 142.139 2400.860-1.3 109.461 3300.970-0.3 139.253
700.430-7.3 27.365 1600.940-0.5 130.773 2500.830-1.6 101.957 3400.960-0.4 136.397
800.525-5.6 40.793 1700.880-1.1 114.611 2600.800-1.9 94.720 3500.925-0.7 126.633
Show more details... Show More Application Details
 
2. MOD 0000028364 Application Superceded 08/10/2017
3. BMLET-20040311ACM GRANTED 08/13/2004
4. BXLEDT-20040311ACL AUX GRANTED 12/16/2004
5. BXPEDT-20040113ABK AUX GRANTED 01/29/2004
6. BDSTA-20020410AAS GRANTED 04/22/2002
7. BLEDT-20020408ABK GRANTED 10/17/2002
Record Type: Digital TV (DTV) Station
Domestic Status: License
Channel: 47
Analog Channel: 11
NAD27 Coordinates: 41 52' 44.01" 87 38' 9.99"
NAD83 Coordinates: 41 52' 44.12" 87 38' 10.20"
Elevation: 181 m AMSL
Effective ERP: 300 kW
Directional Antenna
Antenna Type: AND ATW13H4-HSC1-47S
Antenna Polarization: Horizontal
Visual Power Output: 17.99 kW
Maximum HAAT: 466 m
Radiation center-above mean sea level: 646m
Radiation Center above average terrain: 465m
Overall antenna height above ground: 521m
Directional Antenna
Antenna System ID: 33534
Antenna Rotation: 0
Rad Field ERP Rad Field ERP Rad Field ERP Rad Field ERP
00.85012.998 900.6407.369 1800.83012.393 2700.77510.805
100.75010.119 1000.76010.391 1900.79511.370 2800.78010.945
200.6307.140 1100.87013.617 2000.78511.086 2900.81011.803
300.5204.864 1200.94015.896 2100.81011.803 3000.86013.305
400.4303.326 1300.98517.454 2200.84012.694 3100.92015.227
500.3802.598 1401.00017.990 2300.86013.305 3200.95016.236
600.3802.598 1500.98017.278 2400.86013.305 3300.97016.927
700.4303.326 1600.94015.896 2500.83012.393 3400.96016.580
800.5254.958 1700.88013.931 2600.80011.514 3500.92515.393
Border Zone: Located near Canada
Show more details... Show More Application Details
 
8. BMPEDT-20000501AIR GRANTED 05/31/2001
9. BPEDT-19981228LB GRANTED 07/30/1999
10. BLET-19840209KG GRANTED 06/29/1984
DIGITAL TV CHANNEL ELECTION
In the First Channel Election - Licensee/Permitee has entered into a Negotiated Channel Election Arrangement and makes the following channel election:  47 
If not approved, they request alternate channel: 11
CALL SIGN HISTORY
WTTW -
APPLICATION HISTORY
  BRET-19790801LM Renewal Granted 11/30/1979
Public Notice Details BPET-19820507KK Minor Modification Granted 06/11/1982
  BRET-19820802D2 Renewal Granted 11/19/1982
Public Notice Details BMPET-19831108KS Replace Expired CP Granted 11/28/1983
  BLET-19840209KG Licence to Cover Granted 06/29/1984
Public Notice Details BLET-19840605KG Licence to Cover Aux Granted 06/29/1984
  BRET-19870803KE Renewal Granted 11/16/1987
  BRET-19920803LK Renewal Granted 11/30/1992
  BRET-19970801LE Renewal Granted 11/19/1997
  BPEDT-19981228LB Minor Modification Granted 07/30/1999
  BMPEDT-20000501AIR Minor Modify CP Granted 05/31/2001
  BOA-20010801APB Ownership Report Accepted for Filing 09/14/2001
  BLEDT-20020408ABK Licence to Cover Granted 10/17/2002
  BDSTA-20020410AAS Special Temporary Authority Granted 04/22/2002
  BEDSTA-20020925ACZ Special Temporary Authority Granted 10/15/2002
  BEDSTA-20030325AEI Special Temporary Authority Granted 04/08/2003
  BOA-20030728AGX Ownership Report Accepted for Filing 07/29/2003
  BEDSTA-20030912ADA Special Temporary Authority Granted 10/03/2003
  BAFEDT-20031124AGE Ancillary Fee Received 11/24/2003
  BXPEDT-20040113ABK Auxillary Permit Granted 01/29/2004
  BSTA-20040112ADJ Special Temporary Authority Dismissed 03/12/2004
  BXLEDT-20040311ACL Licence to Cover Aux Granted 12/16/2004
  BMLET-20040311ACM Modify Licence Granted 08/13/2004
  BEDSTA-20040322AHX Special Temporary Authority Granted 04/08/2004
  BEDSTA-20040901AER Special Temporary Authority Granted 09/28/2004
  BCERET-20041021ADX Pre-Election Certif. Tendered for Filing 10/22/2004
  BAFEDT-20041116ACZ Ancillary Fee Received 11/17/2004
  BEDSTA-20050301AEK Extension of STA Granted 03/30/2005
  BFREET-20050209AKZ First Round Election Approved 06/23/2005
  BRET-20050729CYS Renewal Granted 12/14/2006
  BOA-20050729ABT Ownership Report Accepted for Filing 08/01/2005
  BEDSTA-20050818ACT Special Temporary Authority Granted 10/11/2005
  BAFEDT-20051108AAV Ancillary Fee Received 11/09/2005
  BEDSTA-20060317AFM Extension of STA Granted 04/06/2006
  BAFEDT-20061115ABL Ancillary Fee Received 11/16/2006
  BOA-20070725AEL Ownership Report Accepted for Filing 07/26/2007
  BAFEDT-20071109AAL Ancillary Fee Received 11/13/2007
  BDTRET-20080211ADJ DTV Transition Report Accepted for Filing 02/12/2008
  BDERET-20080701ADH DTV Education Report Received 07/02/2008
  BDERET-20081003ABW DTV Education Report Received 10/06/2008
  BAFEDT-20081117AAZ Ancillary Fee Received 11/18/2008
  BDERET-20090109AJF DTV Education Report Received 01/12/2009
  BNAT Accepted for Filing 03/17/2009
  BDERET-20090408AII DTV Education Report Received 04/09/2009
  BDTUET-20090415ABW DTV Transition Update Accepted for Filing 04/16/2009
  BDEREDT-20090709ALA DTV Education Report Received 07/10/2009
  BOA-20090730ADG Ownership Report Accepted for Filing 07/31/2009
  BAFEDT-20091022ABU Ancillary Fee Received 10/23/2009
  BAFEDT-20101201AMD Ancillary Fee Received 12/02/2010
  BOA-20110725AFP Ownership Report Accepted for Filing 07/26/2011
  BAFEDT-20111128FUL Ancillary Fee Received 11/30/2011
  BAFEDT-20121022AAX Ancillary Fee Received 10/23/2012
  BOA-20130709ABS Ownership Report Accepted for Filing 07/10/2013
Transaction Log data BREDT-20130725ACD Renewal Granted 10/10/2014
  BAFEDT-20131107ADZ Ancillary Fee Received 11/08/2013
  BAFEDT-20131108ACU Ancillary Fee Received 11/12/2013
Transaction Log data BAFEDT-20141008AAY Ancillary Fee Received 10/09/2014
  0000002457 Incentive Auction Cert Received 06/30/2015
  BOA-20150714ABS Ownership Report Accepted for Filing 07/15/2015
  0000005351 Schedule 317 Received 11/05/2015
Transaction Log data BAFEDT-20151104GIM Ancillary Fee Received 11/05/2015
  0000016144 Notification Received 10/14/2016
  0000016747 Schedule 317 Received 11/07/2016
  0000028360 399 SUB 07/12/2017
  0000028362 399 SUB 07/12/2017
  0000028364 Minor Modification Granted 08/11/2017
  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)
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