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WBBM
CHICAGO IL
AM BROADCAST
780 kHz
Audacy License, LLC, as Debtor-in-Possession
2400 Market Street
4th Floor
Philadelphia PA 19103
6106605610
Facility ID: 9631
Licensed
HD Radio digital hybrid
Historic Grid View
View Public File
Correspondence
Enforcement History
FRN: 0004434866
Station logo.
This record has been enhanced by the REC Radio History Project. Pre-1932 data has been manually entered by REC based on FRC Radio Service Bulletins.  Click here to learn more.
This record has been enhanced by the REC Radio History Project. Pre-1980 data has been manually entered by REC based on information from FCC History Cards.  Click here to learn more.
L2C BXL-20190702AEG AUX Granted 08/05/2019
L2C BL-20190517ABF Granted 06/10/2019
REC Application ID: 5202596 (LMS)
Legacy CDBS Application ID: 1804919
Record Type: Full Service AM
Application Purpose: License to Cover
FRN: 0004434866
Community of license: CHICAGO, IL, US
NAD83 Coordinates: 41 56' 3.0" N / 88 4' 22.0" W
Frequency: 780 kHz
FCC Station Class: A
Daytime | View Towers
Primary Tower Coordinates: 41 56' 3.1" N / 88 4' 22.2" W
Power: 35.000 kW
Directional Antenna: N
RMS Standard: 430.02 mV/m at 1km
Twr Field
Ratio
Elec.
Ht.
Phas-
ing
Spac-
ing
Orien-
tation
Tower
Ref
Top
Load
Sw
A
Sw
B
Sw
C
Sw
D
Tower
Height
A1211.7000NN226.2m
Nighttime | View Towers
Primary Tower Coordinates: 41 56' 3.1" N / 88 4' 22.2" W
Power: 42.000 kW
Directional Antenna: N
RMS Standard: 430.02 mV/m at 1km
Twr Field
Ratio
Elec.
Ht.
Phas-
ing
Spac-
ing
Orien-
tation
Tower
Ref
Top
Load
Sw
A
Sw
B
Sw
C
Sw
D
Tower
Height
A1211.7000NN226.2m
CP BXP-20180305AAG AUX Granted 06/08/2018
ML BP-20171011AAC Granted 02/15/2018
L2C BXL-20170328ABK AUX Granted 06/22/2017
CP BXP-20131104ARE AUX Granted 03/25/2014
L2C BXL-20000211ABM AUX Granted 06/15/2000
L2C BL-20000208ABZ Granted 03/13/2001
CP BXP-20000211ABK AUX Granted 04/24/2000
ML BP-20000208ABT Granted 02/15/2001
MOD BP-19890310AE AUX Dismissed 03/30/1993
CP BP-19890310AD Dismissed 03/30/1993
MOD BP-19870327AP Dismissed 08/25/1987
BML-2511 H Granted 04/22/1974
BZ-5360 H Granted 01/28/1965
BZ-5359 H Granted 01/28/1965
BL-7812 AUX H Granted 09/13/1960
BP-13201 AUX H Granted 07/28/1959
BP-13201 AUX H Superceded 07/15/1959
BL-4843 AUX H Granted 12/12/1952
BP-5450 AUX H Granted 07/31/1952
BZ-2410 H Granted 07/21/1950
BL-2588 H Granted 09/02/1947
BMP-2752 H Granted 05/27/1947
B4-MP-2247 H Granted 11/18/1946
B4-P-4009 H Granted 09/20/1945
B4-ML-1188 H Granted 06/06/1944
B4-Z-1444 H Granted 10/14/1942
B4-L-1664 H Granted 10/14/1942
B4-MP-1555 H Granted 04/25/1942
B4-P-3467 H Granted 03/03/1942
B4-Z-968 H Granted 06/12/1941
B4-ML- H Returned 11/22/1940
B4-ML-991 AUX H Granted 05/16/1940
B4-L-1142 H Granted 05/04/1940
B4-P-2496 H Granted 08/18/1939
B4-P-2414 H Granted 06/20/1939
B4-ML-450 H Dismissed 12/23/1942
B4-ASA-2 H Granted 12/01/1936
B4-L-181 H Granted 07/02/1935
4-P-B-3275 H Granted 03/05/1935
4-P-B-3275 H Superceded 01/10/1935
4-L-B-829 H Granted 07/01/1932
4-MP-B-336 H Granted 05/20/1932
4-ML-B-980 H Granted 12/30/1933
4-P-B-2454 H Granted 02/05/1932
4-ML-B-822 H Granted 05/15/1931
4-ML-B-763 H Granted 02/27/1931
4-P-B-1590 H Denied 11/17/1931
4-M-B-536 H Dismissed 12/15/1931
4-P-B-1040 H Denied 06/13/1930
4-L-B-180 H Granted 10/15/1929
4-P-B-286 H Granted 11/15/1928
4-L-B-31 H Granted 11/08/1928
4-P-B-261 H Denied 10/18/1928
4-L-B- H Granted 10/01/1927
4-P-B- H Granted 06/15/1927
4-S-B-543 H Granted 06/01/1927
4-S-B-543 H Granted 04/14/1927
L2C BL-2588 Granted 00/00/0000
BROADCAST AUXILIARY/REMOTE PICK-UP/STL
KSJ882 161.6400 ONE FIRST NATL BANK
KSJ882 161.6400
KSJ882 161.7000 ONE FIRST NATL BANK
KSJ882 161.7000
KC27732 450.1625
WQUU475 450.4500 233 SOUTH WACKER DRIVE
KC27732 450.5125 233 S WACKER
WQUU475 450.6125 375 E Army Trail Road
WQUU475 450.6125 233 SOUTH WACKER DRIVE
WQUU475 450.6125 130 East Randolph
WQUU475 450.6125 7N771 Rohlwing Road
WQUU475 450.6125
WQUU475 450.7875
WQUU475 450.7875 375 E Army Trail Road
WQUU475 450.7875 7N771 Rohlwing Road
WQUU475 450.7875 130 East Randolph
WQUU475 455.4500
KC27732 455.4875
WQUU475 455.6125 130 East Randolph
WQUU475 455.6125
WQUU475 455.6125 375 E Army Trail Road
WQUU475 455.6125 7N771 Rohlwing Road
WQUU475 455.7875
WQIT444 951.0000 Prudential Plaza, 130 East Randolph
CALL SIGN HISTORY
WBBM - 11/14/1924 (RHP)
WBBM - 00/00/0000 (CDBS)
Where this call sign has been:
02/01/1924 - .770 kHz in GLENVIEW IL RSB - now WBBM
02/28/1929 - .770 kHz in GLENVIEW IL RSB - now WBBM
10/31/1929 - .770 kHz in GLENVIEW IL RSB - now WBBM
11/01/1943 on 96.3 in CHICAGO IL - now WBBM-FM (RHP)
00/00/0000 on 96.3 in CHICAGO IL - now WBBM-FM (CDBS)
00/00/0000 On Channel 12 in CHICAGO IL - now WBBM-TV (CDBS)
06/06/1979 on 96.3 in CHICAGO IL - now WBBM-FM (CDBS)
08/28/1979 On Channel 12 in CHICAGO IL - now WBBM-TV (CDBS)
00/00/0000 On Channel 12 in CHICAGO IL - now WBBM-TV (LMS)
PAST ENFORCEMENT ACTIVITY FOR FACILITY
07/22/2020Consent Decree
APPLICATION HISTORY
  4-S-B-543 License to Cover Granted
04/14/1927
  4-S-B-543 License to Cover Granted
06/01/1927
  4-P-B- Modification Granted
06/15/1927
  4-L-B- License to Cover Granted
10/01/1927
  4-P-B-261 Modification Denied
10/18/1928
  4-L-B-31 Modify License Granted
11/08/1928
  4-P-B-286 Modification Granted
11/15/1928
  4-L-B-180 License to Cover Granted
10/15/1929
  4-P-B-1040 Modification Denied
06/13/1930
  4-ML-B-763 Modify License Granted
02/27/1931
  4-ML-B-822 Modify License Granted
05/15/1931
  4-P-B-1590 Modification Denied
11/17/1931
  4-M-B-536 Modify License Dismissed
12/15/1931
  4-P-B-2454 Modification Granted
02/05/1932
  4-MP-B-336 CP Extension Granted
05/20/1932
  4-L-B-829 License to Cover Granted
07/01/1932
  4-ML-B-980 Modify License Granted
12/30/1933
  4-SA-B-94 Special Temporary Authority Granted
01/30/1934
  4-MSA-B-3 Special Temporary Authority Granted
04/27/1934
  4-SA-B-152 Extension of STA Granted
07/18/1934
  B4-MSA-2 Extension of STA Granted
09/11/1934
  B4-SA-53 Extension of STA Granted
11/28/1934
  4-P-B-3275 Modification Granted
03/05/1935
  B4-L-181 License to Cover Granted
07/02/1935
  B4-SA-134 Extension of STA Granted
07/23/1935
  B4-SA-177 Extension of STA Granted
01/28/1936
  B4-SA-202 Extension of STA Granted
07/22/1936
  B4-S-543 Special Temporary Authority Granted
11/24/1936
From: WBBM BROADCASTING CORP.
To: COLUMBIA BROADCASTING SYSTEM, INC.
  B4-AL-146 Assignment Granted
12/01/1936
  B4-ASA-2 Treasury ASAP Account Information Granted
12/01/1936
  B4-SA-228 Extension of STA Granted
01/26/1937
  B4-S-543 Special Temporary Authority Granted
06/21/1937
  B4-SA-240 Extension of STA Granted
07/30/1937
  B4-S-543 Special Temporary Authority Granted
10/04/1937
  B4S-543 Special Temporary Authority Granted
12/23/1937
  B4-S-543 Special Temporary Authority Granted
01/13/1938
  B4-SA-267 Extension of STA Granted
01/20/1938
  B4-MSA-41 Special Temporary Authority Granted
03/02/1938
  B4-S-543 Special Temporary Authority Granted
05/14/1938
  B4-SA-298 Extension of STA Granted
07/13/1938
  B4-SA-328 Extension of STA Granted
01/09/1939
  B4-S-543 Special Temporary Authority Granted
03/24/1939
  B4-S-543 Special Temporary Authority Granted
04/15/1939
  B4-P-2414 Modification Granted
06/20/1939
  B4-S-543 Extension of STA Granted
07/07/1939
  B4-SA-357 Extension of STA Granted
07/12/1939
  B4-P-2496 Modification Granted
08/18/1939
  B4-SA-380 Extension of STA Granted
01/04/1940
  B4-SA-393 Extension of STA Granted
04/29/1940
  B4-L-1142 License to Cover Granted
05/04/1940
  B4-ML-991 License to Cover Granted
05/16/1940
  B4-S-543 Special Temporary Authority Granted
11/20/1940
  B4-ML- Modify License Returned
11/22/1940
  B4-SA-415 Special Temporary Authority Dismissed
02/03/1941
  NARBA-780 NARBA Reallocation Granted
03/24/1941
  B4-SA-406 Extension of STA Granted
03/24/1941
  B4-Z-968 Direct Measurement Granted
06/12/1941
  B4-SSA-22 Extension of STA Granted
01/20/1942
  B4-MSSA-2 Special Temporary Authority Dismissed
02/26/1942
  B4-P-3467 Modification Granted
03/03/1942
  B4-MP-1555 Minor Modify CP Granted
04/25/1942
  B4-L-1664 License to Cover Granted
10/14/1942
  B4-Z-1444 Direct Measurement Granted
10/14/1942
  B4-S-543 Modify Lic per Order 107 Granted
11/06/1942
  B4-ML-450 Modify License Dismissed
12/23/1942
  B4-SSA-91 Extension of STA Granted
01/28/1944
  B4-SSA-62 Extension of STA Granted
02/01/1944
  B4-ML-1188 Modify License Granted
06/06/1944
  B4-S-543 Modify Lic per Order 107-A Granted
07/10/1945
  B4-P-4009 Modification Granted
09/20/1945
  B4-MP-2247 CP Extension Granted
11/18/1946
  BMP-2752 CP Extension Granted
05/27/1947
  BL-2588 License to Cover Granted
09/02/1947
  BZ-2410 Direct Measurement Granted
07/21/1950
  BP-5450 Construction Permit Granted
07/31/1952
  BL-4843 License to Cover Granted
12/12/1952
  BP-13201 Construction Permit Granted
07/28/1959
  BRC-1580 Chg Remote Control Point Granted
12/23/1959
  BRC-1579 Chg Remote Control Point Granted
12/23/1959
  BL-7812 License to Cover Granted
09/13/1960
  BZ-5360 Direct Measurement Granted
01/28/1965
  BZ-5359 Direct Measurement Granted
01/28/1965
  EBSA- Emerg Broadcast System Granted
05/25/1972
  EBSA- Emerg Broadcast System Granted
04/22/1974
  BML-2511 Modify License Granted
04/22/1974
Transaction log data BTC-19850418KK Transfer of Control Dismissed
09/03/1985
Public Notice Details BP-19870327AP Modification Dismissed
08/25/1987
Public Notice Details BP-19890310AE Modification Dismissed
03/30/1993
Public Notice Details BP-19890310AD Construction Permit Dismissed
03/30/1993
  CP TO CONSTRUCT A NEW MAIN ANTENNA
Transaction log data BTC-19950803KM Transfer of Control Granted
11/22/1995
Transaction log data BXP-20000211ABK Construction Permit Granted
04/24/2000
Transaction log data BXL-20000211ABM License to Cover Granted
06/15/2000
Transaction log data BP-20000208ABT Modify License Granted
02/15/2001
Transaction log data BL-20000208ABZ License to Cover Granted
03/13/2001
  BDN-20050520AFD Digital Notification Pending
05/25/2005
Transaction log data BXP-20131104ARE Construction Permit Granted
03/25/2014
Transaction log data BXL-20170328ABK License to Cover Granted
06/22/2017
Transaction log data BP-20171011AAC Modify License Granted
02/15/2018
Transaction log data BXP-20180305AAG Construction Permit Granted
06/08/2018
Transaction log data BL-20190517ABF License to Cover Granted
06/10/2019
Transaction log data BXL-20190702AEG License to Cover Granted
08/05/2019
Transaction log data 0000119647 Renewal Granted
11/20/2020
Transaction log data 0000236426 Assign License/CP Granted
02/12/2024
Add 259 consummation notices to list above.
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)
IMPORTED LETTERS
 Incoming letter or scanned documentBP-20171011AAC06/11/2019
 Incoming letter or scanned documentBP-20171011AAC05/22/2019
 Authorization document 06/20/2018
 Authorization document 02/15/2018
 Incoming letter or scanned document 06/22/2017
 Incoming letter or scanned document 03/28/2017
 History card 01/01/1980
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