KBPA

KBPA (103.5 MHz) is a commercial FM radio station licensed to Austin, Texas. Owned by Sinclair Telecable and operated under the name Waterloo Media, it broadcasts an adult hits radio format. Its radio studios and offices are located along Interstate 35 in North Austin.
KBPA has an effective radiated power (ERP) of 46,000 watts. The transmitter is off Mount Larson Road in Austin, sharing the same tower as Channel 7 KTBC. KBPA broadcasts using HD Radio technology. Its digital subchannel broadcasts a rhythmic contemporary format as "Mega 103-5 HD2".
History.
Good Karma.
The station signed on the air on June 1, 1971. It originally broadcast at 103.7 FM as KRMH. The station was known as "Good Karma", a suitable name for a progressive rock station on the fringe of Austin. ("Broadcasting from beautiful downtown Buda!"). It was licensed to San Marcos, Texas. 
KRMH was owned by, and named for, Advance Inc., whose president was R. Miller Hicks. The station was one of the few to broadcast in quadraphonic stereo.
Shift to Adult Contemporary / Key 103.
In 1976, the Pioneer Broadcasting Company of Austin, which also owned 1490 AM KNOW, acquired KRMH and shifted it to an adult contemporary sound as KCSW; the call letters changed on July 26, 1976. Five years later, the station was acquired by Hicks Communications Inc. of Dallas; upon closing, KCSW changed its call letters to KEYI and rebranded as Key 103, keeping the adult contemporary format. 
In 1983, the station moved from 103.7 FM to 103.5 FM with a power increase to 100,000 watts. Hicks sold the station to Degree Communications for $15.5 million in 1988; the limited partnership restructured, giving GE Capital control, three years later. That transaction amounted to receivership; a year later, KEYI was sold to San Antonio businessman Van Archer, doing business as Mercury Broadcasting, for $3 million.
Oldies 103.
KEYI flipped to oldies music as "Oldies 103" at the beginning of November 1994, in the wake of Austin's oldies station, KFGI-FM, flipping to hot adult contemporary. Two years later, Clear Channel Communications bought KEYI and KFON AM for $3.1 million. Clear Channel attempted to sell KEYI and 44 other stations, in divestiture action spurred by its merger with AMFM, to Hispanic Broadcasting Corporation in a 2000 deal that was scuttled when the United States Department of Justice denied it over equity ties between Clear Channel and HBC. 
Clear Channel then sold KEYI to Secret Communications. Secret owned KEYI less than a year before selling it in 2001 to LBJS Broadcasting Company, a partnership of the LBJ Company and Sinclair Telecable (no relation to Sinclair Broadcast Group). LBJ left radio ownership after six decades by selling its majority interest in the partnership to Emmis Communications in 2004, a $105 million purchase. The new partnership was named Emmis Austin Radio Broadcasting Co., LP.
Bob FM.
In September 2004, KEYI-FM flipped to adult hits as "Bob FM", changing its call letters to KBPA on September 8.
Sinclair Telecable acquired Emmis's stake in its Austin radio stations in June 2019 for $39.3 million. The FCC approved the transaction, requiring a waiver since it maintained a grandfathered cluster not permissible under current radio ownership rules.
Tower Relocation & City of License Change.
In early 2019, Emmis filed with the Federal Communications Commission for a construction permit to relocate the KBPA transmitter site to Austin from its previous location about 30 miles southwest of Austin. The power was decreased to 46,000 watts from the previous 100,000 watts. The station's city of license changed from San Marcos to Austin. 
The move is part of a multi-station allocation shuffle being led by the Educational Media Foundation and will allow EMF to add a signal serving the San Antonio metropolitan area on 103.7 MHz, licensed to Balcones Heights. The FCC approved the changes in January 2020. The transmitter relocation and city of license change were completed on March 23, 2021.
HD Radio.
In 2009, KBPA brought back KXMG's former Dance Top 40 format and placed it on its HD Radio digital subchannel, calling it "Mega 103-5 HD-2". In 2010 the format returned to the terrestrial broadcasting airwaves as a simulcast, broadcasting on FM translator K288FJ at 105.5 FM in Bastrop, Texas. 
In November 2010 the HD2 signal began simulcasting over the air on 102.7 K274AX, which is licensed to Austin and can be heard within the central business area. That simulcast ended on December 13, 2010 at 12:06am, with the translator going silent. At around 9am that day K274AX switched to a simulcast of adult album alternative-formatted KGSR 93.3 FM Cedar Park, Texas. The translator later switched to Regional Mexican music.