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Facility ID Call Sign Community Name CDBS ARN/LMS File#)
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WBBM
CHICAGO IL US
CBS RADIO EAST INC.
1725 DESALES ST NW SUITE 501
WASHINGTON DC 20036
2024574505
AM BROADCAST
780 kHz
Facility ID: 9631
Fully Licensed
HD Radio digital hybrid
Historic Grid View
History Card
Fac Correspondence
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.
BP-20171011AAC Accepted for Filing 10/12/2017
View Application
Public Notice Cmts
Correspondence
Application ID: 1768529
FRN: 0009225210
Frequency: 780 kHz
FCC Station Class: A
IFRB Region 2 Class: A
Time Zone: Central
Daytime | View Towers
Primary Tower Coordinates:
NAD27: 41 56' 2.40" 88 4' 22.80"
NAD83: 41 56' 2.50" 88 4' 23.05"
Power: 35 kW
Non-Directional Antenna Different constants day and night.
Domestic Pattern: T
RMS Theoretical: 430.02 mV/m at 1km
Towers: 1
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
A1211.7000NN0000226.2m
Show more details... Show More Application Details
 
Nighttime | View Towers
Primary Tower Coordinates:
NAD27: 41 56' 2.40" 88 4' 22.80"
NAD83: 41 56' 2.50" 88 4' 23.05"
Power: 42 kW
Non-Directional Antenna Different constants day and night.
Domestic Pattern: T
RMS Theoretical: 430.02 mV/m at 1km
Towers: 1
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
A1211.7000NN0000226.2m
Show more details... Show More Application Details
 
BXL-20170328ABK GRANTED 06/22/2017
View Application
View Authorization
Public Notice Cmts
Correspondence
Application ID: 1755386
FRN: 0009225210
Frequency: 780 kHz
FCC Station Class: A
IFRB Region 2 Class: A
Time Zone: Central
Daytime | View Towers
Primary Tower Coordinates:
NAD27: 41 56' 2.40" 88 4' 22.80"
NAD83: 41 56' 2.50" 88 4' 23.05"
Power: 13 kW
Non-Directional Antenna Different constants day and night.
Domestic Pattern: T
RMS Theoretical: 430.02 mV/m at 1km
Towers: 1
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
A1211.7000NN0000226.2m
Show more details... Show More Application Details
 
Nighttime | View Towers
Primary Tower Coordinates:
NAD27: 41 56' 2.40" 88 4' 22.80"
NAD83: 41 56' 2.50" 88 4' 23.05"
Power: 13 kW
Non-Directional Antenna Different constants day and night.
Domestic Pattern: T
RMS Theoretical: 430.02 mV/m at 1km
Towers: 1
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
A1211.7000NN0000226.2m
Show more details... Show More Application Details
 
BXP-20131104ARE GRANTED 03/25/2014
BL-20000208ABZ GRANTED 03/13/2001
View Application
View Authorization
Public Notice Cmts
Correspondence
Application ID: 494072
Frequency: 780 kHz
FCC Station Class: A
IFRB Region 2 Class: A
Time Zone: Central
Daytime | View Towers
Primary Tower Coordinates:
NAD27: 41 59' 27.60" 88 1' 37.20"
NAD83: 41 59' 27.70" 88 1' 37.45"
Power: 50 kW
Non-Directional Antenna Same constants day and night.
Domestic Pattern: T
RMS Theoretical: 402.34 mV/m at 1km
Towers: 1
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
A1194.1000NN0000207.4m
Show more details... Show More Application Details
 
Nighttime | View Towers
Primary Tower Coordinates:
NAD27: 41 59' 27.60" 88 1' 37.20"
NAD83: 41 59' 27.70" 88 1' 37.45"
Power: 50 kW
Non-Directional Antenna Same constants day and night.
Domestic Pattern: T
RMS Theoretical: 402.34 mV/m at 1km
Towers: 1
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
A1194.1000NN0000207.4m
Show more details... Show More Application Details
 
BXL-20000211ABM GRANTED 06/15/2000
BXP-20000211ABK GRANTED 04/24/2000
BP-20000208ABT GRANTED 02/15/2001
BL- GRANTED
BZ-5359 GRANTED 01/28/1965
BZ-5359 GRANTED 01/28/1965
BZ-5360 GRANTED 01/28/1965
BZ-5360 GRANTED 01/28/1965
BL-7812 GRANTED 09/13/1960
BL-7812 GRANTED 09/13/1960
BRC-1579 GRANTED 12/23/1959
BRC-1579 GRANTED 12/23/1959
BRC-1580 GRANTED 12/23/1959
BRC-1580 GRANTED 12/23/1959
BP-13201 GRANTED 07/28/1959
BP-13201 GRANTED 07/28/1959
BP-13201 Application Superceded 07/15/1959
BP-13201 Application Superceded 07/15/1959
BL-4843 GRANTED 12/12/1952
BL-4843 GRANTED 12/12/1952
BP-5450 GRANTED 07/31/1952
BP-5450 GRANTED 07/31/1952
BL-2588 GRANTED 09/02/1947
BL-2588 GRANTED 09/02/1947
BZ-2410 GRANTED 07/21/1950
BZ-2410 GRANTED 07/21/1950
B4-P-4009 GRANTED 09/20/1945
B4-P-4009 GRANTED 09/20/1945
B4-ML-1188 GRANTED 06/06/1944
B4-ML-1188 GRANTED 06/06/1944
B4-Z-1444 GRANTED 10/14/1942
B4-Z-1444 GRANTED 10/14/1942
B4-L-1664 GRANTED 10/14/1942
B4-L-1664 GRANTED 10/14/1942
B4-MP-1555 GRANTED 04/25/1942
B4-MP-1555 GRANTED 04/25/1942
B4-P-3467 GRANTED 03/03/1942
B4-P-3467 GRANTED 03/03/1942
B4-MSSA-2 DISMISSED 02/26/1942
B4-MSSA-2 DISMISSED 02/26/1942
NARBA-780 GRANTED 03/24/1941
NARBA-780 GRANTED 03/24/1941
B4-SA-415 DISMISSED 02/03/1941
B4-SA-415 DISMISSED 02/03/1941
B4-S-543 GRANTED 11/20/1940
B4-S-543 GRANTED 11/20/1940
B4-ML- Returned 11/22/1940
B4-ML- Returned 11/22/1940
B4-ML-991 GRANTED 05/16/1940
B4-ML-991 GRANTED 05/16/1940
B4-L-1142 GRANTED 05/04/1940
B4-L-1142 GRANTED 05/04/1940
B4-P-2496 GRANTED 08/18/1939
B4-P-2496 GRANTED 08/18/1939
B4-S-543 GRANTED 07/07/1939
B4-S-543 GRANTED 07/07/1939
B4-P-2414 GRANTED 06/20/1939
B4-P-2414 GRANTED 06/20/1939
B4-S-543 GRANTED 04/15/1939
B4-S-543 GRANTED 04/15/1939
B4-S-543 GRANTED 03/24/1939
B4-S-543 GRANTED 03/24/1939
B4-S-543 GRANTED 05/14/1938
B4-S-543 GRANTED 05/14/1938
B4-S-543 GRANTED 01/13/1938
B4-S-543 GRANTED 01/13/1938
B4-MSA-41 GRANTED 03/02/1938
B4-MSA-41 GRANTED 03/02/1938
B4S-543 GRANTED 12/23/1937
B4S-543 GRANTED 12/23/1937
B4-S-543 GRANTED 10/04/1937
B4-S-543 GRANTED 10/04/1937
B4-S-543 GRANTED 06/21/1937
B4-S-543 GRANTED 06/21/1937
B4-ML-450 DISMISSED 12/23/1942
B4-ML-450 DISMISSED 12/23/1942
B4-S-543 GRANTED 11/24/1936
B4-S-543 GRANTED 11/24/1936
B4-L-181 GRANTED 07/02/1935
B4-L-181 GRANTED 07/02/1935
4-P-B-3275 GRANTED 03/05/1935
4-P-B-3275 GRANTED 03/05/1935
4-P-B-3275 Application Superceded 01/10/1935
4-P-B-3275 Application Superceded 01/10/1935
4-SA-B-152 GRANTED 07/18/1934
4-SA-B-152 GRANTED 07/18/1934
B4-MSA-2 GRANTED 09/11/1934
B4-MSA-2 GRANTED 09/11/1934
4-MSA-B-3 GRANTED 04/27/1934
4-MSA-B-3 GRANTED 04/27/1934
4-SA-B-94 GRANTED 01/30/1934
4-SA-B-94 GRANTED 01/30/1934
4-L-B-829 GRANTED 07/01/1932
4-L-B-829 GRANTED 07/01/1932
4-MP-B-336 GRANTED 05/20/1932
4-MP-B-336 GRANTED 05/20/1932
4-ML-B-980 GRANTED 12/30/1933
4-ML-B-980 GRANTED 12/30/1933
4-P-B-2454 GRANTED 02/05/1932
4-P-B-2454 GRANTED 02/05/1932
4-ML-B-763 GRANTED 02/27/1931
4-ML-B-763 GRANTED 02/27/1931
4-P-B-1590 DENIED 11/17/1931
4-P-B-1590 DENIED 11/17/1931
4-M-B-536 DISMISSED 12/15/1931
4-M-B-536 DISMISSED 12/15/1931
4-P-B-1040 DENIED 06/13/1930
4-P-B-1040 DENIED 06/13/1930
4-L-B-180 GRANTED 10/15/1929
4-L-B-180 GRANTED 10/15/1929
4-L-B-31 GRANTED 11/08/1928
4-L-B-31 GRANTED 11/08/1928
4-P-B-286 GRANTED 11/15/1928
4-P-B-286 GRANTED 11/15/1928
4-P-B-261 DENIED 10/18/1928
4-P-B-261 DENIED 10/18/1928
4-L-B- GRANTED 10/01/1927
4-L-B- GRANTED 10/01/1927
4-P-B- GRANTED 06/15/1927
4-P-B- GRANTED 06/15/1927
4-S-B-543 GRANTED 04/14/1927
4-S-B-543 GRANTED 04/14/1927
4-S-B-543 GRANTED 06/01/1927
4-S-B-543 GRANTED 06/01/1927
CALL SIGN HISTORY
WBBM - 11/14/1924
WBBM -
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
On Channel 26 in CHICAGO IL - now WBBM-TV
06/06/1979 on 96.3 in CHICAGO IL - now WBBM-FM
08/28/1979 On Channel 26 in CHICAGO IL - now WBBM-TV
on 96.3 in CHICAGO IL - now WBBM-FM
REC RADIO HISTORY PROJECT
This facility record includes pre-1980 information from the FCC/FRC manual history cards that pre-dates both the CDBS system and its predecessor BAPS. The history cards contain information about stations from the early days of radio. Not all records are included. Records such as license renewals and auxilliary facilities are excluded. Also, the information on the history cards was not very detailed and only contain the very basic information. We have included the comments from the card entries to help guide you along the history. REC feels that the history of radio is just as important as its future. REC will be slowly adding this data to the system giving priority to major markets and heritage stations. If you would like to volunteer to do data entry, please contact REC. We would appreciate your help!
Click here to view the full history card file for this facility.
Historical data on this page compiled by Michi Bradley
For more information this project including how you can participate, click here.
APPLICATION HISTORY
To: ATLASS INVESTMENT COMPANY
4-S-B-543Licence to CoverGranted04/14/1927
4-S-B-543Licence to CoverGranted06/01/1927
4-P-B-Minor ModificationGranted06/15/1927
4-L-B-Licence to CoverGranted10/01/1927
4-P-B-261Minor ModificationDenied10/18/1928
To: ATLASS COMPANY, INC.
4-L-B-31Modify LicenceGranted11/08/1928
4-P-B-286Minor ModificationGranted11/15/1928
4-L-B-180Licence to CoverGranted10/15/1929
4-P-B-1040Minor ModificationDenied06/13/1930
4-M-B-536Modify LicenceDismissed12/15/1931
4-P-B-1590Minor ModificationDenied11/17/1931
4-ML-B-763Modify LicenceGranted02/27/1931
To: WBBM BROADCASTING CORP.
4-ML-B-822Modify LicenceGranted05/15/1931
4-P-B-2454Minor ModificationGranted02/05/1932
4-ML-B-980Modify LicenceGranted12/30/1933
4-MP-B-336CP ExtensionGranted05/20/1932
4-L-B-829Licence to CoverGranted07/01/1932
4-SA-B-94Special Temporary AuthorityGranted01/30/1934
4-MSA-B-3Special Temporary AuthorityGranted04/27/1934
4-SA-B-152Extension of STAGranted07/18/1934
B4-MSA-2Extension of STAGranted09/11/1934
4-P-B-3275Minor ModificationSupersceded01/10/1935
B4-SA-53Extension of STAGranted11/28/1934
4-P-B-3275Minor ModificationGranted03/05/1935
B4-SA-134Extension of STAGranted07/23/1935
B4-L-181Licence to CoverGranted07/02/1935
B4-SA-177Extension of STAGranted01/28/1936
B4-SA-202Extension of STAGranted07/22/1936
From: WBBM BROADCASTING CORP.
To: COLUMBIA BROADCASTING SYSTEM, INC.
B4-AL-146Assign LicenceGranted12/01/1936
B4-S-543Special Temporary AuthorityGranted11/24/1936
B4-SA-228Extension of STAGranted01/26/1937
B4-ASA-2ASAGranted12/01/1936
B4-ML-450Modify LicenceDismissed12/23/1942
B4-SA-240Extension of STAGranted07/30/1937
B4-S-543Special Temporary AuthorityGranted06/21/1937
B4-S-543Special Temporary AuthorityGranted10/04/1937
B4-SA-267Extension of STAGranted01/20/1938
B4S-543Special Temporary AuthorityGranted12/23/1937
B4-MSA-41Special Temporary AuthorityGranted03/02/1938
B4-S-543Special Temporary AuthorityGranted01/13/1938
B4-S-543Special Temporary AuthorityGranted05/14/1938
B4-SA-298Extension of STAGranted07/13/1938
B4-SA-328Extension of STAGranted01/09/1939
B4-S-543Special Temporary AuthorityGranted03/24/1939
B4-S-543Special Temporary AuthorityGranted04/15/1939
B4-SA-357Extension of STAGranted07/12/1939
B4-P-2414Minor ModificationGranted06/20/1939
B4-S-543Extension of STAGranted07/07/1939
B4-P-2496Minor ModificationGranted08/18/1939
B4-SA-380Extension of STAGranted01/04/1940
B4-SA-393Extension of STAGranted04/29/1940
B4-L-1142Licence to CoverGranted05/04/1940
B4-ML-991Licence to Cover AuxGranted05/16/1940
B4-SA-406Extension of STAGranted03/24/1941
B4-ML-Modify LicenceReturned11/22/1940
B4-S-543Special Temporary AuthorityGranted11/20/1940
B4-SA-415Special Temporary AuthorityDismissed02/03/1941
NARBA-780NARBA ReallocationGranted03/24/1941
B4-Z-968Direct MeasurementGranted06/12/1941
B4-MSSA-2Special Temporary AuthorityDismissed02/26/1942
B4-SSA-22Extension of STAGranted01/20/1942
B4-P-3467Minor ModificationGranted03/03/1942
B4-MP-1555Minor Modify CPGranted04/25/1942
B4-L-1664Licence to CoverGranted10/14/1942
B4-Z-1444Direct MeasurementGranted10/14/1942
B4-S-543Modify Lic per Order 107Granted11/06/1942
B4-SSA-62Extension of STAGranted02/01/1944
B4-SSA-91Extension of STAGranted01/28/1944
B4-ML-1188Modify LicenceGranted06/06/1944
B4-S-543Modify Lic per Ord 107-AGranted07/10/1945
B4-P-4009Minor ModificationGranted09/20/1945
B4-MP-2247CP ExtensionGranted11/18/1946
BMP-2752CP ExtensionGranted05/27/1947
BL-2588Licence to CoverGranted09/02/1947
BZ-2410Direct MeasurementGranted07/21/1950
BP-5450Auxillary PermitGranted07/31/1952
BL-4843Licence to Cover AuxGranted12/12/1952
BP-13201Auxillary PermitSupersceded07/15/1959
BP-13201Auxillary PermitGranted07/28/1959
BRC-1579Chg Remote Control PointGranted12/23/1959
BRC-1580Chg Remote Control PointGranted12/23/1959
BL-7812Licence to Cover AuxGranted09/13/1960
BZ-5359Direct MeasurementGranted01/28/1965
BZ-5360Direct MeasurementGranted01/28/1965
EBSA-EBSAGranted05/25/1972
To: CBS INC.
BML-2511Modify LicenceGranted04/22/1974
EBSA-EBSAGranted04/22/1974
  BL- Licence to Cover Granted 09/20/1961
  BR-19790801WA Renewal Granted 11/30/1979
  BR-19820802E5 Renewal Granted 11/19/1982
From: EXISTING SHAREHOLDERS OF CBS INC.
To: TURNER BROADCASTING SYSTEM, INC.
  BTC-19850418KK Transfer Control Dismissed 09/03/1985
Public Notice Details BP-19870327AP Minor Modification Dismissed 08/25/1987
Public Notice Details BP-19890310AE Auxillary Permit Dismissed 03/30/1993
Public Notice Details BP-19890310AD New Station Dismissed 03/30/1993
  BR-19890801WS Renewal Granted 11/20/1989
From: STOCKHOLDERS OF CBS INC.
To: WESTINGHOUSE ELECTRIC CORPORATION
  BTC-19950803KM Transfer Control Granted 11/22/1995
  BR-19960801W8 Renewal Granted 12/16/1996
  BR-19960801W8 Assign Licence Granted 11/13/1998
  BP-20000208ABT Minor Modification Granted 02/15/2001
  BXP-20000211ABK Auxillary Permit Granted 04/24/2000
  BL-20000208ABZ Licence to Cover Granted 03/13/2001
  BXL-20000211ABM Licence to Cover Aux Granted 06/15/2000
  BR-20040802BDM Renewal Granted 11/26/2004
  BDN-20050520AFD Digital Notification Accepted for Filing 05/25/2005
  BR-20120801APN Renewal Granted 11/23/2012
  Mailing Address Change Accepted for Filing 01/30/2013
  BXP-20131104ARE Auxillary Permit Granted 03/25/2014
Transaction Log data BXL-20170328ABK Licence to Cover Aux Granted 06/22/2017
Transaction Log data BP-20171011AAC Minor Modification Accepted for Filing 10/12/2017
  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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