The Tower of Power is a 777 ft (236.8 m), 120,000 watt[1] TPO mast owned by the GMA Network located in Tandang Sora, Barangay Culiat, Quezon City.
It serves as a transmitter facility for GMA's flagship stations, including DZBB-TV 7 (digital UHF 15), GTV's DWDB-TV 27, and Barangay FM's DWLS 97.1 MHz.
[2] The Tower of Power was constructed on a huge vacant lot in the 3rd Quarter of 1987, as a new edifice for the network and for the preparation for Rainbow Satellite broadcast to replace an old surplus 50-kilowatt transmitter located at the old RBS building (now known as GMA Network Center) along EDSA, and to provide clearer TV and FM reception.
In 2005, following its signing of a channel lease agreement with ZOE Broadcasting Network's flagship DZOE-TV 11, GMA replaced channel 11's decommissioned 40-kilowatt transmitter in Pasig with a newly purchased 100 kW transmitter system built and installed by GMA.
It is including Bulacan, Pampanga, Zambales, Tarlac, Bataan, Nueva Ecija, Laguna, Batangas, Cavite, Quezon, Aurora and Rizal in both grades A and B for the broadcasts of DZBB-TV and DWDB-TV.