What is "dxgd"

DXGD 549 kHz is a commercial AM radio station in Bongao, Tawi-Tawi, The Philippines. It is owned by the Apostolic Vicariate of Jolo, as a business of the Roman Catholic Church. It began as a media apostolate of the Missionary Oblates of Mary Immaculate, a religious congregation of men pioneering in missions in the Mindanao and Sulu archipelago regions.