DWIZ-AM
DWIZ-AM
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DWIZ-AM

DWIZ (882 AM) is a radio station owned and operated by Aliw Broadcasting Corporation, a subsidiary of the ALC Group of Companies. It serves as the flagship station of the DWIZ network, which was established in late January 2023. The station's studio is located at the 20th Floor, Citystate Centre, 709 Shaw Boulevard, Brgy. Oranbo, Pasig; and its transmitter is located along Osmeña St., Brgy. Pag-Asa, Obando, Bulacan.

Present-day DWIZ began as KZPI—its last two call letters stood for Philippine Islands—a commercial radio station being established in 1946 by the Philippine Broadcasting Corporation (PBC) through the Soriano family, along with magazine chain owner Ramon Roces, as a post-war extension of the company's predecessor, Far Eastern Broadcasting Company. FEBC had operated KZRM and KZRF (originally KZEG) until the beginning of the Japanese invasion of the Philippines in late 1941. KZPI was incorporated on June 4, and commenced a test broadcast on July 1—the same day KZRH resumed its broadcast.

Its first, small studio was located in the 5th Floor of the Filipinas Building at Plaza Moraga in Manila; its transmitter in Polo, Bulacan. The transmitting equipment was supplied by American company Raytheon Production Corporation. It broadcast at 800 kilocycles (kHz) in long wave, and had a 1-kilowatt power. Its operations were then financed by American-controlled Philippine Operations, Inc. Its first managing director was Norman Paige, an American radio veteran and former Pacific war correspondent for the Columbia Broadcasting System.

The equipment were yet to be fully set up by July 4 when it was among the three stations to cover the inaugural ceremonies for the formal declaration of independence from the United States at the Luneta Park, and for Manuel Roxas as the first president of the new Republic.

Daily programming in its first year consisted of eight quarter-hour newscasts, dance music programs from the Manila Hotel and El Cairo Night Club, and some which were aired remotely.

Its sister stations, mediumwave and shortwave KZOK, were established in 1947; their transmitters were then located in Quezon City. KZOK would be relaunched in 1949 as DZAB–DZH5. PBC also had another station in Cebu.

Following the 1947 International Radio Conference by the International Telecommunication Union in the United States where it was decided for the Philippine stations to replace the initial call letter with "D", which would be effective in 1949, KZPI was renamed DZPI.

Later that year, the Manila Broadcasting Company (now known as MBC Media Group) and the PBC made what was said the country's strongest merging of broadcast companies; thus DZPI served as a sister station of DZRH and DZMB.

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