DXDJ (100.3FM) is a relay station ofRJFM Manila, owned and operated byRajah Broadcasting Network through its licensee Free Air Broadcasting Network, Inc. The station's transmitter is located at Broadcast Avenue, Shrine Hills, Matina,Davao City.^[1][2]

The station was established byRajah Broadcasting Network in 1987 asRJFM. At that time, it aired an album rock format. In 1996, it changed its name toBoss Radio. In the middle of 2003,UMBN took over the station's operations and rebranded the station as100.3 Oldies Radio with anoldies format, ranging from the 50s, 60s & some 70s. In 2008, it rebranded as Hit Radio and adjusted its music timeline, removing the 50s and adding more 70s & 80s to its playlist. In February 2009, as UMBN's blocktime agreement with the station expired, it became a simulcast of the flagshipRJFM Manila asRJFM. Meanwhile, UMBN transferred its operations to ACWS-UBN'sDXKR-FM, which became95.5 Hit Radio (nowRetro 95.5).

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