 The National Media Production Center (NMPC) had acquired the facilities of the Voice of America in Malolos, Bulacan in 1965 and steadily brought the old complex up to standards by a steady overhaul, fine-tuning, and outright replacement of outmoded equipment and machines.The NMPC operated the Voice of the Philippines, VOP, on both medium wave-918 kHz (formerly at 920 kHz until 1978) and shortwave 9.810 mHz transmissions.In 1975, the NMPC obtained DWIM-FM.