As early as 1965, Bishop Quentin Olwell, C.P., D.D. and the Passionist Fathers felt the urgent need to reach out to more people of this vast southernmost area of the Philippine through the radio. But funds for setting up a Catholic radio station were unavailable.

In 1970, the successor of Bishop Olwell, Bishop Reginald Arliss, CP,DD, recognized that with the foundation of the Prelature already laid out, the local Church here must use the modern "scientific miracle", the radio, in its mission of bringing Christ to the people. He proposed to the clergy his plan to allow one of them to go to the United States of America (USA) to raise funds necessary for establishing the radio station.

Father George Nolan, CP, who was then in his twelfth (12) year as a missionary to the B'laans was asked to undertake this "top priority" project. Father George spent several months approaching friends, relatives, and funding agencies in the USA. The desire of  Bishop Arliss and the clergy of Marbel to use the radio not only for religious instructions but also for the many socio-economic projects appealed to many like-minded people in the U.S. They aided the project substantially.

In December 1971, a medium-sized radio station started its first test broadcast on its assigned AM frequency, 900 Khz. In order to reach all people of South Cotabato, a tower with a height of 250 feet  and a transmitter with a 2,500 watts power were installed. After two changes in its assigned frequency, DXCP now broadcasts on 585 khz. DXCP, the Voice of South Cotabato, is heard as far as Balut Island in the south, Kibawe, Bukidnon in the north, Kabasalan,  Zamboanga del Sur in the West and Mati, Davao Oriental in the east. The DXCP is a franchised radio station of the Catholic Bishops' Conference of the Philippines (CBCP). The South Cotabato Communications Corporation owns and operates it for the Diocese of Marbel.

Just as DXCP was starting, Martial Law was declared. Father George would sum-up the Martial Years: "Possibilities for evangelization through DXCP were limitless. "Instead of lambasting the government over the air, DXCP prudently concentrated on airing the pastoral letters of the Catholic Bishops Conference of the Philippines (CBCP).

In 1981, DXCP was turned over by the Passionist Community to the Diocese of Marbel with Father Fortunato Ferolino as Station Director.

The years that followed the lifting of Martial Law made DXCP an instrument in raising the consciousness of the people of South Cotabato. Thus, it became a catalyst for social transformation. DXCP was the only radio station which advocated the fight for human rights and nationalism. The Diocesan clergy assigned in Gen. Santos City became active in denouncing the abuses and atrocities committed against human life and basic rights of the people.