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WBBM

CHICAGO IL

AM BROADCAST

780 kHz

Audacy License, LLC
2400 Market Street
4th Floor
Philadelphia PA 19103
2025716555
Facility ID: 9631
Licensed
HD Radio digital hybrid

View Public File
Correspondence
Enforcement History
FRN: 0004434866

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.

History Grid View - Return to Classic View

Estimated Date		Callsign	Frequency	Daytime Power	Nighttime Power	Location
Radio Service Bulletins
02/01/1924	New station	WBBM	770	200	200	LINCOLN IL	110 PARK PL
FRANK ATLASS PRODUCE CO.
02/01/1924		WBBM	770	200	200	LINCOLN IL
10/01/1924	License expired	WBBM	770	200	200	LINCOLN IL
12/01/1924	New license issued	WBBM	770	200	200	CHICAGO IL
H. LESLIE ATLASS
03/02/1925		WBBM	770	200	200	CHICAGO IL
ATLAS INVESTMENT CO.
07/01/1925		WBBM	770	1500	1500	CHICAGO IL	1554 HOWARD ST
04/30/1927		WBBM	770	5000	5000	CHICAGO IL
05/31/1927		WBBM	770	1000	1000	CHICAGO IL
09/30/1927		WBBM	770	5000	5000	GLENVIEW IL	RFD 1
11/30/1928		WBBM	770	10000	10000	GLENVIEW IL
ATLASS CO.
02/28/1929		WBBM-WJBT	770	10000	10000	GLENVIEW IL
ON LIST
10/31/1929		WBBM	770	25000	25000	GLENVIEW IL
05/29/1931		WBBM	770	25000	25000	GLENVIEW IL
WBBM BROADCASTING CORPORATION

Date Field	File Number	Application Type	Application Status	Status Date	Permit Expires	kHz	Daytime Power	Nighttime Power	Schedule or Time Share	Antenna Mode	Facility Type
Construction Permits and Licenses
03/30/1927	4-S-B-543	License to Cover	Granted	06/01/1927		770	1000	1000	WJBT-WAAF	NonDirectional	Main
03/30/1927	4-S-B-543	License to Cover	Granted	04/14/1927		1330	1500	1500	Unlimited	NonDirectional	Main
06/07/1927	4-P-B-	Minor Modification	Granted	06/15/1927	09/01/1927	770	5000	5000	WJBT-WAAF	NonDirectional	Main
09/22/1927	4-L-B-	License to Cover	Granted	10/01/1927		770	5000	5000	WJBT-WAAF-WORD	NonDirectional	Main
10/11/1928	4-P-B-261	Minor Modification	Application Denied	10/18/1928		770	25000	25000	Unlimited	NonDirectional	Main
10/12/1928	4-P-B-286	Minor Modification	Granted	11/15/1928	2/30/1929	770	25000	25000	KTAB	NonDirectional	Main
09/24/1929	4-L-B-180	License to Cover	Granted	10/15/1929		770	25000	25000	KTAB	NonDirectional	Main
12/01/1929	4-P-B-1040	Minor Modification	Application Denied	06/13/1930		770	50000	50000	KFAB	NonDirectional	Main
03/13/1930	4-M-B-536	Modify License	Dismissed	12/15/1931		770	25000	25000	KTAB	NonDirectional	Main
08/01/1930	4-P-B-1590	Minor Modification	Application Denied	11/17/1931		770	50000	50000	KFAB	NonDirectional	Main
02/17/1931	4-ML-B-763	Modify License	Granted	02/27/1931		770	25000	25000	KFAB	NonDirectional	Main
REQ LIC TO COVER SPECIFIED HRS OF OPERATION TO COMPLY WITH GENERAL ORDER NO 105
01/21/1932	4-P-B-2454	Minor Modification	Granted	02/05/1932	05/17/1932	770	25000	25000	KFAB	NonDirectional	Main
INSTALL NEW T
03/24/1932	4-ML-B-980	Modify License	Granted	12/30/1933		770	25000	25000	KFAB	NonDirectional	Main
TO SYNCRHRONIZE WITH STATION KFAB DURING CERTAIN SPECIFIED NIGHT HOURS.
05/07/1932	4-MP-B-336	CP Extension	Granted	05/20/1932	06/17/1932	770	25000	25000	KFAB	NonDirectional	Main
06/01/1932	4-L-B-829	License to Cover	Granted	07/01/1932		770	25000	25000	KFAB	NonDirectional	Main
06/30/1934	4-P-B-3275	Minor Modification	Superceded	01/10/1935		770	50000	50000	S-KFAB	NonDirectional	Main
01/10/1935	4-P-B-3275	Minor Modification	Granted	03/05/1935	11/26/1935	770	50000	50000	S-KFAB	NonDirectional	Main
GRANTED FOR INCR POWER AND NEW EQUIPM (SEE AMEDED ORDER 3-11, NOT GRANTED HOURS)
06/07/1935	B4-L-181	License to Cover	Granted	07/02/1935		770	50000	50000	S-KFAB	NonDirectional	Main
04/06/1937	B4-ML-450	Modify License	Dismissed	12/23/1942		770	50000	50000	S-KFAB	NonDirectional	Main
MOD OF LIC TO CHG HOURS OF OPER FROM SIMUL-D SYNCHROUSLY (EXP) NIGHT WITH KFAB TO UNLIMITED TIME CONTINGENT UPON KFAB BEING GRANTED CHANGE IN FREQ TO 1080 KC./DOCKET 5271
05/26/1939	B4-P-2414	Minor Modification	Granted	06/20/1939		770	50000	50000	S-KFAB	NonDirectional	Main
MAKE CHANGES IN TRANSMITTING EQUIPMENT
08/18/1939	B4-P-2496	Minor Modification	Granted	08/18/1939	05/18/1940	770	50000	50000	S-KFAB	NonDirectional	Main
INSTALLATION OF NEW TRANSMITTER
04/24/1940	B4-L-1142	License to Cover	Granted	05/04/1940		770	50000	50000	S-KFAB	NonDirectional	Main
INSTALLATION OF NEW TRANSMITTER
05/01/1940	B4-ML-991	License to Cover-Aux	Granted	05/16/1940		770	50000	50000	S-KFAB	NonDirectional	Auxiliary
MOD OF LIC TO USE OLD LICENSED COMPOSITE T AS AUX T
11/14/1940	B4-ML-	Modify License	Application Returned	11/22/1940		770	50000	50000	S-KFAB	NonDirectional	Main
MOD OF LIC TO OPERATE SIMULTANEOUSLY (NON-SYNCHRONIZED) WITH KFAB FROM 6AM CST TO LOCAL SUNRISE AT CHICAGO DURING MONTHS WHEN SUNRISES AFTER 6AM
02/20/1942	B4-P-3467	Minor Modification	Granted	03/03/1942	11/03/1942	780	50000	50000	S-KFAB	NonDirectional	Main
04/10/1942	B4-MP-1555	Minor Modify CP	Granted	04/25/1942		780	50000	50000	S-KFAB	NonDirectional	Main
MOVE PRESENT ANTENNA TO NEW SITE
05/07/1942	B4-L-1664	License to Cover	Granted	10/14/1942		780	50000	50000	S-KFAB	NonDirectional	Main
08/31/1942	B4-Z-1444	Direct Measurement	Granted	10/14/1942		780	50000	50000	S-KFAB	NonDirectional	Main
02/18/1944	B4-ML-1188	Modify License	Granted	06/06/1944		780	50000	50000	Unlimited	NonDirectional	Main
SUBJ NO OPERATIONT AKE PLACE UNTIL KFAB COMMENCES OPER ON 1110 KC
09/20/1945	B4-P-4009	Minor Modification	Granted	09/20/1945	12/15/1946	780	50000	50000	Unlimited	NonDirectional	Main
INSTALL NEW VERTICAL ANT
07/22/1947	BL-2588	License to Cover	Granted	09/02/1947		780	50000	50000	Unlimited	NonDirectional	Main
07/22/1947	BZ-2410	Direct Measurement	Granted	07/21/1950		780	50000	50000	Unlimited	NonDirectional	Main
04/04/1952	BP-5450	Auxiliary Permit	Granted	07/31/1952		780	1000	1000	Unlimited	NonDirectional	Auxiliary
11/12/1952	BL-4843	License to Cover-Aux	Granted	12/12/1952		780	1000	1000	Unlimited	NonDirectional	Auxiliary
06/17/1959	BP-13201	Auxiliary Permit	Superceded	07/15/1959		780	5000	5000	Unlimited	NonDirectional	Auxiliary
07/15/1959	BP-13201	Auxiliary Permit	Granted	07/28/1959		780	10000	10000	Unlimited	NonDirectional	Auxiliary
01/15/1960	BL-7812	License to Cover-Aux	Granted	09/13/1960		780	10000	10000	Unlimited	NonDirectional	Auxiliary
08/26/1964	BZ-5359	Direct Measurement	Granted	01/28/1965		780	50000	50000	Unlimited	NonDirectional	Main
08/26/1964	BZ-5360	Direct Measurement	Granted	01/28/1965		780	10000	10000	Unlimited	NonDirectional	Auxiliary
03/07/2000	BP-20000208ABT	Modify License	Granted	02/15/2001	02/15/2004	780	50000	50000		NonDirectional	Main
Minor change in licensed facilities
03/10/2000	BXP-20000211ABK	Construction Permit	Granted	04/24/2000	04/24/2003	780	50000	50000		NonDirectional	Auxiliary
Minor change in licensed auxiliary facilities
03/23/2000	BL-20000208ABZ	License to Cover	Granted	03/13/2001		780	50000	50000		NonDirectional	Main
Lic. to cover
03/31/2000	BXL-20000211ABM	License to Cover	Granted	06/15/2000		780	50000	50000		NonDirectional	Auxiliary
Lic. to Cover for Auxiliary Purposes
11/04/2013	BXP-20131104ARE	Construction Permit	Granted	03/25/2014	03/25/2017	780	13000	13000		NonDirectional	Auxiliary
CP for auxiliary purposes.
04/19/2017	BXL-20170328ABK	License to Cover	Granted	06/22/2017		780	13000	13000		NonDirectional	Auxiliary
License to cover auxiliary permit.
10/11/2017	BP-20171011AAC	Modify License	Granted	02/15/2018	02/15/2021	780	35000	42000		NonDirectional	Main
Minor change in licensed facilities.
03/05/2018	BXP-20180305AAG	Construction Permit	Granted	06/08/2018	06/08/2021	780	10000	10000		NonDirectional	Auxiliary
CP for auxiliary purposes.
05/21/2019	BL-20190517ABF	License to Cover	Granted	06/10/2019		780	35000	42000		NonDirectional	Main
License to cover.
07/15/2019	BXL-20190702AEG	License to Cover	Granted	08/05/2019		780	10000	10000		NonDirectional	Auxiliary
License to cover auxiliary permit.
07/29/2024	0000249792	Modify License	Granted	10/01/2024							Main
Assignment of Licenses and Permits
Date Field	File Number	Assignor			Assignee					Application Status	Status Date
10/12/1928	4-L-B-31				ATLASS COMPANY, INC.					Granted	11/08/1928
TO CONSOLIDATE WITH WJBT AND CHANGE NAME
04/24/1931	4-ML-B-822				WBBM BROADCASTING CORP.					Granted	05/15/1931
11/05/1936	B4-AL-146	WBBM BROADCASTING CORP.			COLUMBIA BROADCASTING SYSTEM, INC.					Granted	12/01/1936
04/19/1974	BML-2511				CBS INC.					Granted	04/22/1974
01/25/2024	0000236426									Granted	02/12/2024
05/31/2024	0000241244									Granted	09/30/2024
Transfer of Control
Date Field	File Number	Transferor			Transferee					Application Status	SStatus Date
04/18/1985	BTC-19850418KK									Dismissed	09/03/1985
VOL TC FROM EXISTING SHAREHOLDERS OF CBS INC. TO TURNER BROADCASTING SYSTEM, INC. FORM 315 ATTY-CHARLES D. FERRIS
08/03/1995	BTC-19950803KM									Granted	11/22/1995
TRANSFER OF CONTROL FROM THE STOCKHOLDERS OF CBS INC. TO WESTINGHOUSE ELECTRIC CORPORATION. FORM 315 TRANSFEREE'S ATTY: RAMSEY L. WOODWORTH, ESQ. TRANSFEROR'S ATTY: RICHARD E. WILEY, ESQ. THIS APPLICATION IS GRANTED BY M O & O DATED 11-22-95 FCC # 95-469
Special Temporary Authority (STA) and Experimental and other miscellaneous authorizations
Type		Date	File Number	Remarks							Outcome
Special Temporary Authority		01/30/1934	4-SA-B-94	SPECIAL EXPERIMENTAL AUTHORIZATION TO OPERATE 3-7 TIME NIGHT SYNCHRONIZED WITH KFAB EXPERMENTALLY DURING THE FOLLOWING HOURS: FEB 1 TO APR 29, 1934 FROM 10PM TO 12 MIDNIGHT AND FROM APR 29 TO AUG 1 FROM 9PM TO 12 MIDNIGHT CST FOR PEIOD ENDING 8-1-34							Granted
Special Temporary Authority		04/27/1934	4-MSA-B-3	MODIFICATION OF SPECIAL EXPERIMENTAL AUTHORITY TO ALLOW KFAB AND WBBM TO OPERATE SYNCHRONOUSLY FROM 830 TO 930 PM UNTIL 4-29-34 AND 730 TO 830 PM FROM 4-29-34 TO 8-11-34.							Granted
Extension of STA		07/18/1934	4-SA-B-152	EXTENSION OF SPEC EXPER AUTH 4-SA-B-94 AS MODIFIED TO OPERATE 3/7 TIME NIGHT SYNCHRONIZED WITH KFAB EXPERIMENTALLY DURING FOLLOWING HRS: AUG1 TO SEP30 1934 9PM-MIDNIGHT; OCT1-JAN31 1935 10PM-MIDNIGHT AND ALSO 730-830P FROM 8-1-34 TO 9-30-34 AND FROM 830P-930P FROM 10-1-34 TO 1-31-35							Granted
Extension of STA		09/11/1934	B4-MSA-2	EXTENSION OF SPEC EXPER AUTH TO OPERATE SYNCHRONOUSLY WITH STATION KFAB FROM KFAB LOCAL SUNSET TO MIDNIGHT							Granted
Extension of STA		11/28/1934	B4-SA-53								Granted
Extension of STA		07/23/1935	B4-SA-134								Granted
Extension of STA		01/28/1936	B4-SA-177								Granted
Extension of STA		07/22/1936	B4-SA-202								Granted
Special Temporary Authority		11/24/1936	B4-S-543	OPER STA KFAB SIMUL INSTEAD OF SYNCHRON MAX 3 MINS 1030PM EST 12/15 COMMUNITY CHEST							Granted
Extension of STA		01/26/1937	B4-SA-228								Granted
Extension of STA		07/30/1937	B4-SA-240								Granted
Special Temporary Authority		06/21/1937	B4-S-543	REBROADCAST OVER WBBM CONVERSATION BETWEEN W5XAR AND W5XAS OF WESTERN RADIO TELEG CO NOT MORE THAN 1 HOUR BETWEEN 6-21 AND 6-26 FLYING WEATHER PERMITTING.							Granted
Special Temporary Authority		10/04/1937	B4-S-543	REBROADCAST OVER WBBM COMMUNICATIONS ORIGINATING ON AMERICAN AIR LINES PLANE & ON U S COAST GUUARD CUTTER RUSH DURING PERIOD APPROX 12N TO 2PM CST 10/5 CONSISTING DESCRIPTION DEDICATION OUTER DRIVE BRIDGE IN CHICAGO-ROOSEVELT.							Granted
Extension of STA		01/20/1938	B4-SA-267								Granted
Special Temporary Authority		12/23/1937	B4S-543	COMMUNICATIONS FROM AN AMERICAN AIR LINES PLANE DURING PER 630PM-645PM CST 12/24 XMAS PROG							Granted
Special Temporary Authority		03/02/1938	B4-MSA-41	MODIFICATION OF SPECIAL EXPERIMENTAL AUTHORIZATION TO EMPLOY NEW METHOD OF SYNCHRONIZATION.							Granted
Special Temporary Authority		01/13/1938	B4-S-543	TRANSCRIPTION OF SHORT EXCERPTS OF TWO-WAY CONVERSATION BETWEEN CHICAGO AIRPORT GROUND STA AND REG COMMERCIAL PLANES ARRIVING OR DEPARTING ON MAJRO AIR LINES 1-18 BETWEEN 11AM AND 3PM							Granted
Special Temporary Authority		05/14/1938	B4-S-543	TWO WAY CONVERSATIONS BETWEEN W9XZK AND SQUAD CARS, SAT 5-21-36 BETWEEN 130-230PM CDST							Granted
Extension of STA		07/13/1938	B4-SA-298								Granted
Extension of STA		01/09/1939	B4-SA-328								Granted
Special Temporary Authority		03/24/1939	B4-S-543	REBROADCAST PROG RECEIVED FROM AMERICAN AIRLINES PLANE NC-21747 KHCHV FROM 930-10PM CST ON 3-24-39							Granted
Special Temporary Authority		04/15/1939	B4-S-543	OPR AUX TRANS OF WENR FROM 4-15 TO 5-10 UNTIL NEW ANTENNA IS PUT UP AT WBBM'S LOCATION							Granted
Extension of STA		07/12/1939	B4-SA-357								Granted
Extension of STA		07/07/1939	B4-S-543	OPR AUX TRANS OF WENR FROM 4-15 TO 5-10 UNTIL NEW ANTENNA IS PUT UP AT WBBM'S LOCATION/SEVERAL EXTENSIONS GRANTED							Granted
Extension of STA		01/04/1940	B4-SA-380								Granted
Extension of STA		04/29/1940	B4-SA-393								Granted
Extension of STA		03/24/1941	B4-SA-406								Granted
Special Temporary Authority		11/20/1940	B4-S-543	OPER SIMUL KFAB FROM 6AM TO LSR FROM 11/30 TO 12/29/40 PENDING FORMAL APPL FOR AUTH./2 EXTENSIONS GIVEN							Granted
Special Temporary Authority		02/03/1941	B4-SA-415	TO OPERATE SIMULTANEOUSLY (NON-SYNCHRONIZED) WITH KFAB FROM 6AM CST TO LOCAL SUNRISE AT CHICAGO DURING MONTHS WHEN SUNRISES AFTER 6AM							Dismissed
Special Temporary Authority		02/26/1942	B4-MSSA-2	MOD OF SSA TO OPER SYNCRONOUSLY WITH STATION KFAB FROM LS AT LINCOLN NE TO 12 MID CST AND TO OPER SIMULTANEOUSLY WITH KFAB FROM 530AM TO SR CHICAGO IL FOR PERIOD ENDING 2-1-42/DISMISSED WITHOUT PREJUDICE AND RETIRED TO CLOSED FILES (PERIOD REQUESTED EXPIRED)							Dismissed
Extension of STA		01/20/1942	B4-SSA-22								Granted
Extension of STA		02/01/1944	B4-SSA-62								Granted
Extension of STA		01/28/1944	B4-SSA-91								Granted
Chg Remote Control Point		12/23/1959	BRC-1579	630 N MCCLURG CT, CHICAGO IL							Granted
Chg Remote Control Point		12/23/1959	BRC-1580	630 N MCCLURG CT, CHICAGO IL							Granted
Emerg Broadcast System		05/25/1972	EBSA-								Granted
Emerg Broadcast System		04/22/1974	EBSA-								Granted
Additional notes
Date	Type		Remarks								Outcome
03/24/1941	NARBA Reallocation										Granted
06/12/1941	Z										Granted
11/06/1942	Order 107										Granted
07/10/1945	Order 107A										Granted
11/18/1946	EP										Granted
05/27/1947	EP										Granted