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REC has made a major enhancement to FCCdata to preserve the public notice comments of older broadcast applications. Clicking on the blue triangle to the left of the file number will show the CDBS Public Notice comments which may have significant history regarding station ownership and engineering, especially for records between 1978~1999.

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WMBR

CAMBRIDGE MA

FULL-SERVICE FM

Channel 201 (88.1 MHz)
RDS PI Code: 7483

Technology Broadcasting Corporation
3 Ames Street
Cambridge MA 02142
6172534000
Facility ID: 64683
Licensed

Historic Grid View
View Public File
Correspondence
FRN: 0009873217

L2C 0000161504

Granted

10/21/2021

REC Application ID: 5255480 (eLMS)
Record Type: Full Service FM
Application Purpose: License to Cover
Expiration Date: 04/01/2022
FRN: 0009873217
Channel: 201A (88.1)
NAD83 Coordinates: 42 21' 42.1" N / 71 5' 7.9" W
REC measured distance to Canada: 298.5 km - bearing 353.4
Elevation: 3 m AMSL
Antenna Type: Shively Labs 6810-2R-SS-DA
Antenna Sections (bays): 2
Spacing Between Bays: 0.5
Transmitter Power Output: 0.509 kW

	Horiz	Vert
Effective Radiated Power (kW)	0.64	0.64
Maximum Effective Radiated Power: (kW)	0	0
Radiation center above average terrain	92 m	92 m
Radiation center-height above ground:	107 m	107 m
Radiation center-above mean sea level:	110 m	110 m

Overall antenna height above ground: 111.3 m
Structure Type: BTWR
Directional Antenna:

Rad	Field	dB	ERP	Rad	Field	dB	ERP	Rad	Field	dB	ERP
0	0.930	-0.6	0.554	120	0.617	-4.2	0.244	240	1.000	0.0	0.640
10	0.880	-1.1	0.496	130	0.600	-4.4	0.230	250	1.000	0.0	0.640
20	0.852	-1.4	0.465	140	0.600	-4.4	0.230	260	1.000	0.0	0.640
30	0.836	-1.6	0.447	150	0.600	-4.4	0.230	270	1.000	0.0	0.640
40	0.815	-1.8	0.425	160	0.600	-4.4	0.230	280	1.000	0.0	0.640
50	0.800	-1.9	0.410	170	0.620	-4.2	0.246	290	1.000	0.0	0.640
60	0.763	-2.3	0.373	180	0.655	-3.7	0.275	300	1.000	0.0	0.640
70	0.740	-2.6	0.350	190	0.701	-3.1	0.314	310	1.000	0.0	0.640
80	0.700	-3.1	0.314	200	0.781	-2.1	0.390	320	1.000	0.0	0.640
90	0.650	-3.7	0.270	210	0.920	-0.7	0.542	330	1.000	0.0	0.640
100	0.638	-3.9	0.261	220	0.985	-0.1	0.621	340	1.000	0.0	0.640
110	0.629	-4.0	0.253	230	1.000	0.0	0.640	350	0.970	-0.3	0.602

MODA 0000092534

Granted

02/11/2020

MOD 0000092534

Superceded

02/05/2020

L2C BLED-19950727KD

Granted

10/25/1995

MODX BMPED-19950124JC

Granted

08/21/1995

MOD BPED-19920326IA

Granted

08/19/1993

L2C BLED-19890310KA

Granted

06/23/1989

MOD BPED-19880902IH

Granted

11/03/1988

L2C BLED-19791029AS

Granted

03/05/1980

CALL SIGN HISTORY

WTBS - 00/00/0000 (CDBS)
WMBR - 05/24/1979 (CDBS)
WMBR - 00/00/0000 (LMS)
Where this call sign has been:
01/31/1927 - .1370 kHz in CHICAGO IL RSB

APPLICATION HISTORY

	BPED-1555	Modification	Granted 09/14/1978
	BMPED-19790814AG	CP Extension	Granted 09/28/1979
	BMPED-19790706AF	Modification	Dismissed 12/11/1979
	BLED-19791029AS	License to Cover	Granted 03/05/1980
	BRED-19801201XT	Renewal	Granted 03/30/1981
	BRED-19831201DY	Renewal	Granted 03/16/1984
	BPED-19880902IH	Modification	Granted 11/03/1988
	BLED-19890310KA	License to Cover	Granted 06/23/1989
	BRED-19901128VJ	Renewal	Granted 08/30/1991
	BPED-19890712IA	Modification	Dismissed 01/21/1992
	BPED-19920326IA	Modification	Granted 08/19/1993
	BMPED-19950124JC	CP Extension	Granted 08/21/1995
	BLED-19950727KD	License to Cover	Granted 10/25/1995
	BRED-19971117S3	Renewal	Granted 06/01/1998
	BRED-20051130AHL	Renewal	Granted 03/24/2006
	BRED-20131126BLG	Renewal	Granted 03/24/2014
	0000092534	Modification-Amendment	Granted 02/11/2020
	BSTA-20210621AAB	Special Temporary Auth.-engineering	Granted 06/25/2021
	0000161504	License to Cover	Granted 10/21/2021
	0000174862	Renewal	Granted 03/21/2022
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

Imported Letter	BSTA-20210621AAB	06/25/2021
History card		01/01/1980