|City of license||Troy, Alabama|
|Broadcast area||Montgomery, Alabama|
|Branding||Troy University Public Radio|
(also on HD Radio)
|Repeaters||WRWA 88.7 Dothan
WTJB 91.7 Columbus, Georgia
|First air date||March 1, 1977 (at 90.1)|
|Format||Public radio; Classical music
HD3: BBC World Service
|HAAT||230 meters (750 ft)|
|Former frequencies||90.1 MHz (1977-1981)|
|Affiliations||American Public Media, National Public Radio, Public Radio International|
|Owner||Troy University Public Radio
|Sister stations||WRWA, WTJB|
WTSU (89.9 FM) is an American radio station licensed to serve Troy, Alabama and serving the Montgomery, Alabama market. The station, established in 1977, is owned and operated by Troy University. It broadcasts a classical music format as the flagship station of the Troy University Public Radio network.
WTSU started broadcasting on March 1, 1977, as the state's third public radio station (the callsign stands for the university's name then, "Troy State University," a part of the Alabama higher education system), and the first south of Birmingham. The station was assigned the call sign "WTSU" by the Federal Communications Commission (FCC). WTSU originally broadcast at 90.1 MHz with a power of 50,000 watts; by 1981, it moved to its present frequency of 89.9, doubling its wattage to 100,000. Programming from the start was a blend of news and classical music, combined with an automated block of "beautiful music" between 9:00 a.m. and 4:00 p.m. Troy University Public Radio discontinued the easy-listening daytime format in 1993.
- "Station Information Profile". Arbitron. Retrieved December 5, 2011.
- "Troy names director of radio, television". Montgomery Advertiser (Montgomery, AL). June 27, 2008. Retrieved December 5, 2011. "As director, Johnson oversees the operation of the University's three National Public Radio affiliates, WTSU-FM 89.9, Montgomery/Troy, WRWA-FM 88.7, Dothan and WTJB-FM 91.7, Phenix City/Columbus."
- Nelson, Bob (October 18, 2008). "Call Letter Origins". The Broadcast Archive. Retrieved October 31, 2008.
- "Call Sign History". CDBS Public Access Database. Federal Communications Commission Media Bureau. Retrieved December 5, 2011.
- Troy University Public Radio official website
- Query the FCC's FM station database for WTSU
- Radio-Locator information on WTSU
- Query Nielsen Audio's FM station database for WTSU
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