DZBB-AM
GMA Super Radyo DZBB 594 (pronounced DZ-double-B) (594 kHz Metro Manila) is the flagship AM station of Radio GMA Network, Inc. (RGMA, a subsidiary of GMA Network, Inc.) in the Philippines. The station's studio is located at the GMA Network Center in Quezon City, while its transmitter is located at Barangay Panghulo, Obando, Bulacan. It is a 24-hour operating station (except on Mondays where it signs-off at midnight to 4 am), and except Holy Week of each year where it signs-off at midnight of Maundy Thursday and lasts until 4 am of Easter Sunday.
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