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High Quality Content by WIKIPEDIA articles! Sign-off (or closedown) 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 (most commonly during the overnight hours). Sign-off is the reverse process to a broadcast sign-on. In the case of television stations, this usually entails the making of an announcement to inform the viewer that the station is about to go off-air, the playing, in many cases, of the appropriate national anthem(s), the displaying of a test pattern, and/or the cutting of the carrie...
High Quality Content by WIKIPEDIA articles! Sign-off (or closedown) 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 (most commonly during the overnight hours). Sign-off is the reverse process to a broadcast sign-on. In the case of television stations, this usually entails the making of an announcement to inform the viewer that the station is about to go off-air, the playing, in many cases, of the appropriate national anthem(s), the displaying of a test pattern, and/or the cutting of the carrier signal. Generally after the carrier signal is cut the viewer only sees static as the transmitter has been shut off. However, depending on environmental factors, those who are watching the station over the air may see programming from more distant television stations operating on the same frequency.
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