 The station's studio is located at the GMA Network Center, EDSA corner Timog Avenue, Diliman, Quezon City, while its transmitter is located at Barangay Panghulo, Obando, Bulacan.DZBB marked its inaugural broadcast, as the station's signal (although it was static marred) was wafted on the air for the first time on March 1, 1950 by Robert "Uncle Bob" Stewart, in a small office space in Calvo Building, Escolta, Manila with mostly second-hand equipment and an old, surplus radio transmitter.The station was then broadcasting on the frequency of 580 kHz.