The National Telecommunications Commission (NTC; Filipino: Pambansang Komisyon sa Telekomunikasyon) is the telecommunications regulator of the Philippines.
It is an attached agency of the Department of Information and Communications Technology responsible for the supervision, adjudication and control over all telecommunications services and radio and television networks throughout the country.
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A sign-on (or start-up in Commonwealth countries except Canada) is the beginning of operations for a radio or television station, generally at the start of each day. It is the opposite of a sign-off (or closedown in Commonwealth countries except Canada), which is the sequence of operations involved when a radio or television station shuts down its transmitters and goes off the air for a predetermined period; generally, this occurs during the overnight hours although a broadcaster's digital specialty or sub-channels may sign-on and sign-off at significantly different times than its main channels.
Like other television programming, sign-on and sign-off sequences can be initiated by a broadcast automation system, and automatic transmission systems can turn the carrier signal and transmitter on/off by remote control.