History
1979–2002: 99.9 RK
The station was launched on December 26, 1979, as 99.9 RK with the call letters DXRK. It was formerly owned by P.N. Roa Broadcasting System of then-Mayor Pedro "Oloy" N. Roa. The station carried slogan ''"The Rhythm of the City"'' (inherited from 99.5 RT in Manila 99.5 XFM">DWRT-FM.html" ;"title="ow DWRT-FM">99.5 XFMand DYIO">Y101 Cebu) and aired a contemporary hit radio">Top 40 (CHR) format. Originally operating 24 hours a day, on February 3, 1997, it reduced its broadcasting hours from 8:00 AM to 12:00 MN. 99.9 RK ceased broadcasting on December 31, 2002, after 23 years of broadcasting.2003–2010: Bay Radio
On January 27, 2003, Baycomms Broadcasting Corporation acquired the station and changed its call letters to DXBD. On February 24, 2003, it was relaunched as 99.9 Bay Radio and carried a Middle of the road (music), mass-based music format. It initially operated from 5:00 AM to 12:00 MN. At that time, its studios and transmitter were located at J.R. Borja St. In 2008, its changed its callsign back to DXRK. On March 2, 2009, Bay Radio began broadcasting 24 hours a day. After 7 years of broadcasting, 99.9 Bay Radio signed off for the last time on December 25, 2010. During that time, the station was sold to Hypersonic Broadcasting Center, and its studios moved to its present location at the 2nd floor, SBS Building, C.M. Recto Ave., while the transmitter moved to its present location at Osmeña St.2011–present: Magnum Radyo
On February 28, 2011, after a series of test broadcast, the station was relaunched as Magnum Radyo, with the call letters DXMR, and switched to a "newsic" (news and music) format, similar to 89.5 Brigada News FM in General Santos.References
External links
* News and talk radio stations in the Philippines Radio stations established in 1979 Radio stations in Cagayan de Oro {{coord missing, Philippines